Entries |
Document | Title | Date |
20080249395 | METHOD AND APPARATUS FOR CONTROLLING CATHETER POSITIONING AND ORIENTATION - A method and apparatus for detecting position and orientation of catheter distal magnetic element end while moving in a patient's heart is described. The apparatus includes magnetic sensors for to detect the magnetic field of a generated by the catheter tip. Each sensor transmits the field magnitude and direction to a detection unit, which filters the signals and removes other field sources, such as generated by CGCI coils and external medical hardware. The method allows the measurements of magnitude corresponding to the catheter tip distance from the sensor and the orientation of the field showing the magnetic tip orientation. Since the tip's magnetic field is not necessarily symmetric, the position and orientation computation technique are not independent of each other. Hence, an iterative calculation is used to converge to a solution. The method of determining tip position is calculated by triangulation from each sensor. In one embodiment, the tip orientation is calculated by an intersecting-planes algorithm. The orientation is used to adjust the distances from each sensor, and the process is repeated until convergence for both position and orientation is achieved. The resultant value provides the actual catheter tip position and orientation (AP). The actual position is further filtered by synchronizing the AP measurements with the QRS signal of the heart, allowing the operator and CGCI controller to view the organ as a static object. | 10-09-2008 |
20080262338 | METHOD AND APPARATUS FOR ELECTROMAGNETIC NAVIGATION OF A MAGNETIC STIMULATION PROBE - A system and method is disclosed that can be used to track and navigate an instrument relative to a patient. The system can include an electromagnetic tracking system to track an electromagnetic stimulation probe, such as a transcranial magnetic stimulation probe. The system can, according to various embodiments, provide a tracking device on the probe, track the coil of the probe, provide a field relative to the probe, and determine the position of the patient based upon the field produced by the probe. | 10-23-2008 |
20080294034 | Device and Method for the Determination of the Position of a Catheter in a Vascular System - The invention relates to a device and a method for the determination of the position of a catheter in a vascular system ( | 11-27-2008 |
20090012384 | Superconducting Magnetism Measuring Apparatus, Biomagnetism Measuring Apparatus, and Sensor Cylinder Cover and Sheet for Biomagnetism Measuring Apparatus - A superconducting magnetism measuring apparatus is provided which is capable of favorably measuring a faint degree of magnetism generated in the cervical or waist part of a subject to be measured with no need of the neck or waist of the subject being bent forward. Its sensor cylinder ( | 01-08-2009 |
20090018432 | METHODS AND APPARATUS FOR IMAGING WITH MAGNETIC INDUCTION - An apparatus includes a magnetic energy source to provide a magnetic signal and a detector to detect an acoustic energy signal from a sample stimulated by the magnetic energy signal. A method includes applying a magnetic signal to a biological sample, detecting an acoustic signal from the sample, and processing the acoustic signal to determine the electrical impedance distribution of the sample, and identify disease in the biological sample. A method includes applying a magnetic signal to a sample, detecting a magnetic or electrical signal within the sample, and processing the magnetic or electrical signal to reconstruct electrical impedance distribution of the sample. | 01-15-2009 |
20090024019 | METHODS AND APPARATUSES FOR DETECTING ANALYTES IN BIOLOGICAL FLUID OF AN ANIMAL - Methods and devices for detecting an analyte are provided. An analyte binding molecule is fixed to a nanoparticle to form a nanoparticle complex. The analyte binding molecule is capable of binding an analyte. The nanoparticle complex is introduced into one of a circulatory system of an animal or biological fluid of the animal. The analyte is allowed to bind to the nanoparticle complex. The analyte bound nanoparticle complex can be extracted and the presence of the analyte can be detected. | 01-22-2009 |
20090043188 | METHODS AND DEVICES FOR MEASUREMENT AND TREATMENT OF PAIN AND THE TREATMENT OF INFLAMMATION AND OSTEOPOROSIS - A method for pain treatment and measurement according to various aspects of the present invention generally includes providing an external field to a portion of a living being, wherein the external field comprises a frequency of about 3040 Hz. This frequency of about 3040 Hz can also be intermixed with two or more other frequencies for the treatment and measurement of pain, and can be utilized alone or together with other intermixed frequencies to treat inflammation and osteoporosis. | 02-12-2009 |
20090069661 | METHOD FOR SEPARATING MULTICHANNEL SIGNALS PRODUCED BY AC AND DC SOURCES FROM ONE ANOTHER - The present invention relates to a novel manner of measuring DC fields using a multi-channel MEG or MKG measuring instrument; and on the other hand, to a manner of eliminating from the measurement result the interference signals caused by the DC currents. The invention combines the monitoring system of a testee's movement and the method for motion correction of the measured signals so that the signals produced by the DC currents of a moving testee's are visible in the final measurement result as a static signal component in a conventional MEG or MKG measurement. In that case, in the measurement, it is not necessary to beforehand prepare oneself for measuring the DC fields. | 03-12-2009 |
20090069662 | Device for Measuring Biomedical Data of a Test Subject and Method for Stimulating the Test Subject Using Data Processed in Real Time - Provided is a device for measuring biomedical data from a testee, with a recording system for taking the data and a first hardware component for displaying the data. A device for electrical separation of the data is arranged in a connector line for transmitting the data from the recording system to the first hardware component for displaying the data. At least a duplication of the data for data processing purposes is thus guaranteed. The data processed in said manner are used for a method for real-time stimulation of a testee. | 03-12-2009 |
20090069663 | LIVING BODY INSPECTION APPARATUS - A living body inspection apparatus including an oscillation coil which passes an AC current, a detection coil which detects an AC magnetic field generated from the detection coil, an amplification circuit which amplifies a voltage generated by the magnetic field induced by the detection coil, a detecting unit for detecting the output signal of the amplification circuit, a low pass filter to which the output signal of the detecting unit is input, a unit for setting the oscillation coil and detection coil in first and second regions of the living body, a recording unit for recording the output of the low pass filter while the first region and the second region of the living body are moving and a displaying unit for displaying the data recorded in the recording unit or results of analysis of the recorded data. | 03-12-2009 |
20090105579 | METHOD AND APPARATUS FOR REMOTELY CONTROLLED NAVIGATION USING DIAGNOSTICALLY ENHANCED INTRA-OPERATIVE THREE-DIMENSIONAL IMAGE DATA - A method of performing intra-operative three-dimensional imaging and registering diagnostic functional information to the three-dimensional anatomical data is introduced. The availability of co-registered diagnostic information to intra-operative data enables fast and efficient navigation to pre-selected target areas, and allows automatic or semi-automatic treatment of cardiac cavity or vascular disease. | 04-23-2009 |
20090143665 | MAGNETIC DETECTION COIL AND APPARATUS FOR MAGNETIC FIELD MEASUREMENT - It is an aspect of the present invention to provide a magnetic detection coil | 06-04-2009 |
20090156926 | Integrated System for Intravascular Placement of a Catheter - An integrated catheter placement system for accurately placing a catheter within a patient'vasculature is disclosed. In one embodiment, the integrated system comprises a system console, a tip location sensor for temporary placement on the patient's chest, and an ultrasound probe. The tip location sensor senses a magnetic field of a stylet disposed in a lumen of the catheter when the catheter is disposed in the vasculature. The ultrasound probe ultrasonically images a portion of the vasculature prior to intravascular introduction of the catheter. The ultrasound probe includes user input controls for controlling use of the ultrasound probe in an ultrasound mode and use of the tip location sensor in a tip location mode. In another embodiment, ECG signal-based catheter tip guidance is included in the integrated system to enable guidance of the catheter tip to a desired position with respect to a node of the patient's heart. | 06-18-2009 |
20090177074 | Intraluminal Multifunctional Sensor System and Method of Use - An intraluminal sensor designs for multifunctional characterization of injured, stunned, infarcted myocardium, atherosclerotic plagues and tumors are disclosed. Various embodiments of the present invention comprise the sensor tips for a catheter. The tips comprises differential sensor arrangements, and use built-in electromagnet assemblies for a single or multiple axis sensing of various parameters of local magnetic field. | 07-09-2009 |
20090182220 | SOURCE AFFINE RECONSTRUCTION FOR MEDICAL IMAGING - Performing medical imaging. The generation of medical images, which includes a Source AFFine Image REconstruction (SAFFIRE) algorithm, is based on an iterative implementation of minimum mean-square error (MMSE) estimation within an affine-transformed solution space and utilizes a matched filter bank initialization coupled with energy normalization of each successive estimate. An incoherent integration technique provides an alternative implementation strategy to either increase signal-to-noise ratio (SNR) or generalize the estimator to accommodate temporally-separated interference sources. In addition, the estimator solution may be employed to determine volumetric constraints with which to re-apply the estimator to further improve the estimation accuracy. | 07-16-2009 |
20090203988 | Apparatus And Method For Non-Invasively Sensing Pulse Rate And Blood Flow Anomalies - The present invention provides an apparatus and method for non-invasively sensing pulse rate and blood flow anomalies using a localized, uni-directional, and constant magnetic field. The apparatus comprises a magnetic source for producing the magnetic field, a signal acquisition module with a magnetic sensor for detecting the modulations of the magnetic field caused by the blood flow; and a signal processing module for processing the acquired signals so as to produce data of pulse rate and blood flow anomalies. The method senses pulse rate and blood flow anomalies by providing a localized, uni-directional, and constant magnetic field in proximity to a blood vessel; detecting the variations of the magnetic field caused by the flow of pulsatile blood within the blood vessel; and processing the signals of the detected variations so as to monitor the blood flow. | 08-13-2009 |
20090203989 | SYSTEMS AND METHODS FOR POSITIONING A CATHETER - A method for displaying a position of a medical device, such as a catheter, during insertion of the medical device into a patient is disclosed. In one example embodiment, the method includes obtaining a first set of detected position data relating to a location marker, then determining a possible first position of the location marker. A first confidence level relating to a match between the first set of detected position data and a first set of predicted position data is assigned. A determination is made whether the first confidence level meets or exceeds a first threshold. If the first confidence level meets or exceeds the first threshold, a determination is then made whether the first position of the location marker is within a first detection zone. If the first position of the location marker is within the first detection zone, the first position of the location marker is displayed. | 08-13-2009 |
20090221900 | METHOD OF AND APPARATUS FOR MEASURING PROPERTIES OF AN OBJECT WITH ACOUSTICALLY INDUCED ELECTROMAGNETIC WAVES - A measuring method and apparatus in which a measurable object ( | 09-03-2009 |
20090240135 | METHOD OF DETERMINING A SPATIAL DISTRIBUTION OF MAGNETIC PARTICLES - The invention relates to a method of determining a spatial distribution of magnetic particles in an examination zone, in which a magnetic field is generated that has a first sub-zone of lower magnetic field strength and a second sub-zone of higher magnetic field strength. The positions of the two sub-zones are changed, as a result of which the magnetization in the examination zone changes. Measured values that depend on the change in magnetization are acquired. A reference response function by means of which measured values can be determined mathematically from a spatial distribution of magnetic particles is then determined by means of at least extensive magnetic specimen distribution. Finally, the spatial distribution of magnetic particles is reconstructed from the measured values by means of the reference response function. | 09-24-2009 |
20090281414 | Method and System for Determination of Physiological Conditions and Emotional States of a Living Organism - A method and system for non-invasive determination of at least one condition of a living organism selected from physiological conditions and emotional states of the living organism are described. The method comprises sensing electromagnetic waves emanated from a skin portion in an extremely high frequency (EHF) band, and obtaining from the sensed electromagnetic waves at least one unique biometric signature of the living organism indicative of the organism condition. The system includes an antenna array unit configured for sensing the electromagnetic waves emanated from the skin portion; and a receiving unit configured and operable for obtaining the unique biometric signature. The sensed electromagnetic waves are indicative of bioelectric activity of neurally connected and electromagnetically interacting structures distributed in a skin portion of the living organism. | 11-12-2009 |
20100094116 | PERCUTANEOUS MAGNETIC GASTROSTOMY - A system and method places a percutaneous gastrostomy device into a body cavity of a patient using a magnetic gastrostomy tube and a medical detection sensing device. The magnetic gastrostomy tube has a ferromagnetic element attached to its distal end. Various embodiments allow a needle to be passed from the magnetic detection sensing device outside the patient toward a magnetic gastrostomy tube inside the patient or, alternatively, from the magnetic gastrostomy tube inside the patient toward the magnetic detection sensing device outside the patient. After a needle makes a hole between the outside of the patient and the body cavity, a medical wire may be passed through the hole, and the medical wire can then be used to place the percutaneous gastrostomy device. | 04-15-2010 |
20100094117 | MEASURING CONTAINER FOR BIOMAGNETIC MEASUREMENTS - A measuring container is provided, which can be used for biomagnetic measurements, in particular for magnetocardiological measurements. The measuring container comprises an outer screen against electromagnetic high frequency fields and an inner screen against low frequency electromagnetic fields. The measuring container is constructed as a two-chamber system with an outer container comprising the outer screen. A measuring chamber with the inner screen is introduced into the outer container. An antechamber which can be walked into from outside is formed between the inner wall of the outer container and the measuring chamber. | 04-15-2010 |
20100121174 | PROBE VISUALIZATION BASED ON MECHANICAL PROPERTIES - A method for visualization includes receiving an input indicative of respective apparent coordinates of a plurality of points disposed along a length of a probe inside a body of a subject, and applying a model of known mechanical properties of the probe to the apparent coordinates so as to compute a cost function with respect to shapes that can be assumed by the probe in the body. A shape is chosen responsively to the cost function, and corrected coordinates of the points along the length of the probe are generated based on the shape. The representation of the probe using the corrected coordinates is then displayed. | 05-13-2010 |
20100152566 | SYSTEM AND METHOD FOR IDENTIFYING A LANDMARK | 06-17-2010 |
20100168552 | DIPOLE ESTIMATION METHOD - The present invention provides a dipole estimation method which adopts a living body model which is divided into an active area where the conductivity is homogeneous and a passive conductive area having an arbitrary conductivity distribution other than the active area, maintaining the calculation speed at a level as high as that with the conventional art, while allowing the accuracy of potential calculation to be improved. | 07-01-2010 |
20100179412 | ARRANGEMENT FOR MAGNETIC PARTICLE IMAGING, METHOD FOR INFLUENCING AND/OR DETECTING MAGNETIC PARTICLES AND MAGNETIC PARTICLE - An arrangement for magnetic particle imaging and a method for influencing and/or detecting magnetic particles in a region of action is disclosed, which arrangement comprises: magnetic particles in a region of action, the magnetic particles being influenceable and/or detectable, selection means for generating a magnetic selection field having a pattern in space of its magnetic field strength such that a first sub-zone having a low magnetic field strength and a second sub-zone having a higher magnetic field strengthare formed in the region of action, drive means for changing the position in space of the two sub-zones in the region of action by means of a magnetic drive field so that the magnetization of the magnetic particles changes locally, wherein each magneticparticle comprises a non-magnetic substrate with a layer of stainless steel. | 07-15-2010 |
20100222664 | CATHETER ASSEMBLY INCLUDING ECG SENSOR AND MAGNETIC ASSEMBLIES - A stylet for use in guiding a distal tip of a catheter to a predetermined location within the body of a patient. In one embodiment the stylet is configured for use within a lumen of the catheter and comprises a core wire, an ECG sensor, and a magnetic assembly. The ECG sensor senses an ECG signal of a patient when the stylet is disposed within the lumen of the catheter and the catheter is disposed within the body of the patient. The magnetic assembly includes at least one element capable of producing a magnetic or electromagnetic field for detection by a sensor external to the patient. In another embodiment, the stylet includes a pre-shaped distal segment that is deflected with respect to a more proximal portion of the stylet, which in turn causes a distal segment of the catheter to be deflected when the stylet is received within the lumen. | 09-02-2010 |
20100249571 | SURGICAL NAVIGATION SYSTEM WITH WIRELESS MAGNETORESISTANCE TRACKING SENSORS - A surgical navigation system having one or more wireless magnetoresistance sensors, where the sensors have the noise and dynamic range appropriate for position and orientation tracking. The surgical navigation system comprising at least one wireless magnetoresistance reference sensor rigidly attached to at least one anatomical reference of a patient, at least one wireless magnetoresistance sensor attached to at least one device, and at least one processor for determining the position and orientation of the at least one device. | 09-30-2010 |
20100298691 | Method of examining dynamic cardiac electromagnetic activity - A method of examining cardiac electromagnetic activity over a heart for diagnosing the cardiac functions of the heart is disclosed. The method may include constructing a phase diagram of electromagnetic signals over a heart by collecting sets of time-dependent magnetic signals, determining the zeroth and the first derivations of each set of the magnetic signals at a given time, and categorizing the zeroth and the first derivations of the magnetic signals in either of the four phases: (+, +), (−, −), (+, −), (−, +). The method may also include monitoring a wave propagation of the magnetic signals. | 11-25-2010 |
20100324408 | IMPLANTABLE SYSTEM FOR DETERMINING THE ACCOMMODATION REQUIREMENT BY MEASURING THE EYEBALL ORIENTATION USING AN EXTERNAL MAGNETIC FIELD - The present invention relates to an implantable system for determining the accommodation requirement in an artificial accommodation system by measuring the eyeball orientation using an external magnetic field, comprising
| 12-23-2010 |
20110034798 | SYSTEMS AND METHODS FOR GUIDING A MEDICAL INSTRUMENT - This document discusses, among other things, a system for guiding a medical instrument within a body of a subject. The system includes at least one magnetic emitter coupled to the medical instrument. The system also includes a plurality of magnetic sensors configured to be placed on the subject and sense at least one magnetic field generated by the at least one magnetic emitter. The system associates a position of each of the plurality of magnetic sensors with an average anatomical representation of the subject. The system also determines a position of the medical instrument relative to the average anatomical representation and the plurality of magnetic sensors. Finally, the average anatomical representation and a representation of the position of the medical instrument relative to the average anatomical representation is displayed for a user. | 02-10-2011 |
20110077500 | ELECTRONIC PELVIC ORGAN PROLAPSE QUANTIFICATION SYSTEM - Systems and related methods for measuring pelvic organ prolapse are disclosed. A plurality of positioning devices, such as RFID tags, ultrasound reflectors or magnetic field sensors, which may be active or passive, and which are preferably disposable, are set at predetermined positions within the patient and their relative positions recorded with one or more corresponding external receiving devices fixed to the patient while the patient is in a relaxed state. The patient is then instructed to perform an action (such as a valsalva maneuver) that causes the positioning devices to move and their movement relative to their initial recorded positions is measured. | 03-31-2011 |
20110092795 | Methods and Systems for Monitoring Respiratory Data - This invention provides methods and systems for non-invasively determining the presence (and amount) or absence of dynamic hyperinflation in a subject. The invention is based on a novel combination of respiratory parameters that can be measured in a way that is non-invasive and unobtrusive to the subject. Dynamic hyperinflation is often a significant factor in the quality of life of patients suffering from a variety of obstructive pulmonary diseases, and this invention permits simple, routine tracking and management of dynamic hyperinflation in affected patients. | 04-21-2011 |
20110098551 | MEASUREMENT OF SOUND PRESSURE LEVEL AND PHASE AT EARDRUM BY SENSING EARDRUM VIBRATION - A hearing assistance device for measuring sound pressure at a tympanic membrane of a user's ear, the device comprising a housing adapted to be worn at least partially in an ear canal of the user a laser source coupled to the housing and adapted to project a beam of laser energy at the tympanic membrane a sensor for receiving reflected laser energy directed at the tympanic membrane, and a processor connected to the sensor and adapted to estimate the sound pressure level and phase at the tympanic membrane from a signal generated from the sensor. Additional examples provide a hearing device for measuring sound pressure at the tympanic membrane using ultrasonic signals. Further examples provide a hearing device for measuring sound pressure at the tympanic membrane using magnetic sources and sensors. | 04-28-2011 |
20110130643 | Noninvasive Method And System For Monitoring Physiological Characteristics And Athletic Performance - A physiological monitoring system for noninvasively monitoring physiological parameters of a subject, comprising a fitness monitoring system for monitoring physiological parameters of a subject engaged in a physical activity, in accordance with one embodiment of the invention, includes (i) a monitoring garment adapted to cover at least a portion of a subject's torso, (ii) a magnetometer subsystem including a first magnetometer and a second magnetometer, wherein the first and second magnetometers are responsive to changes in distance therebetween, wherein the magnetometer subsystem is configured to generate and transmit a signal representative of a change in the distance between the first and second magnetometers, wherein the first and second magnetometers are incorporated into the monitoring garment, and wherein the first and second magnetometers are proximate to the subject's chest region when the monitoring garment is worn by the subject. | 06-02-2011 |
20110137145 | METHOD FOR COMBINING HIGHLY PERMEABLE PARTS OF A MAGNETIC SHIELD - An inventive magnetic filling material for bridging interspaces in magnetic shields for shielding static or low-frequency magnetic fields. The magnetic filling material comprises at least one matrix material and at least one magnetic component embedded into the matrix material. The magnetic component has magnetically shielding properties. | 06-09-2011 |
20110208037 | SYSTEM AND METHOD FOR IDENTIFYING A LANDMARK | 08-25-2011 |
20110224533 | Element That Can Be Fixed In A Blood Vessel And Is Provided With Biomarkers - An element is disclosed that can be fixed in a blood vessel of a living being has a base body to which a first substance and/or a second substance is/are applied at least in parts. In at least one embodiment, the first substance is determined in such a way that it can be detected from outside of the body of the living being by way of a first non-invasive detection method and reacts with at least one first biochemical substance that is released by the living being into the blood vessel during a first pathological condition of the living being, with the result that the quantity of first substance applied to the base body is reduced. The second substance is determined in such a way that it binds at least one second biochemical substance that is released by the living being into the blood vessel during a second pathological condition of the living being and the presence of the bound substance can be detected from outside of the body of the living being by way of a second non-invasive detection method. | 09-15-2011 |
20110230752 | SCREENING TEST FOR RECOGNIZING PROSTATE DISEASES AND APPARATUS AND DIAGNOSIS SUBSTANCE FOR CARRYING OUT THE TEST - In a screening test method, and a device for implementing the screening test method, a diagnostic substance is provided that contains at least one biomarker connected with at least one ferromagnetic particle, the biomarker binding specifically to a target molecule that is formed by specific pathological prostrate tissue. The diagnostic substance is administered to the blood stream of a patient. A magnetometer is used to detect enrichment of the ferromagnetic particle in the prostrate, as an indicator of a level of the specific pathological prostrate tissue. | 09-22-2011 |
20110237928 | ARRANGEMENT AND METHOD FOR DETECTING AND/OR LOCATING A MAGNETIC MATERIAL IN A REGION OF ACTION - In Magnetic Particle Imaging (MPI) the reconstruction requires the knowledge of a so called system function. This function describes the relation between spatial position and frequency response. For reasonable resolutions and field of views the system function becomes quite large, resulting in large acquisition times for the system function and high memory demand during reconstruction. The present invention proposes to reduce the size of the system function matrix by making use of structural properties of the matrix. Such properties are, for instance, spatial symmetries reducing the number of columns and identical responses at different frequencies reducing the number of rows. In other embodiments the matrix can be transformed to a sparse representation using appropriate base functions. | 09-29-2011 |
20110251476 | ARRANGEMENT AND METHOD FOR MEASURING THE LOCAL VELOCITY OF A LIQUID - The present invention relates to an arrangement ( | 10-13-2011 |
20110295103 | VISUAL STIMULATION PRESENTING APPARATUS, FUNCTIONAL MAGNETIC RESONANCE IMAGING APPARATUS, MAGNETOENCEPHALOGRAPH APPARATUS, AND BRAIN FUNCTION MEASUREMENT METHOD - A visual stimulation presentation apparatus including: a specimen holding unit, made of a non-magnetic material, configured to hold multiple specimens of actual objects serving as specimens for presenting a subject with visual stimulation when running an apparatus to measure brain functions of the subject by detecting change in magnetic field; an actuator, made of a non-magnetic material, configured to selectively present multiple specimens of actual objects set in the specimen holding unit, by driving the specimen holding unit; and a control unit configured to control driving of the actuator; is used, whereby presenting time and presenting position can be precisely controlled and the delicate surface state of the objects with a high degree of sense of texture. | 12-01-2011 |
20110295104 | DETECTION AND GUIDE SYSTEMS AND METHODS FOR ACCESSING BLOOD VESSELS - A detection and guide system provides access to desired blood vessel locations. An implant formed of a biocompatible material is implanted within a mammalian body proximate an outer surface of a blood vessel. The detection and guide system may be configured to be positioned outside the mammalian body to detect the implant and to guide a needle to the desired entry site of the biological boundary structure. A needle guide may be coupled to a housing of the detection and guide system and directed at an angle such that positioning the implant detector over the implant aligns an opening through the needle guide with the desired entry site. The detection and guide system may, for example, provide metal detection of a metallic implant or magnetic detection of a magnetic implant. | 12-01-2011 |
20110313274 | Methods and apparatuses for 3D imaging in magnetoencephalography and magnetocardiography - This invention discloses methods and apparatuses for 3D imaging in Magnetoencephalography (MEG), Magnetocardiography (MCG), and electrical activity in any biological tissue such as neural/muscle tissue. This invention is based on Field Paradigm founded on the principle that the field intensity distribution in a 3D volume space uniquely determines the 3D density distribution of the field emission source and vice versa. Electrical neural/muscle activity in any biological tissue results in an electrical current pattern that produces a magnetic field. This magnetic field is measured in a 3D volume space that extends in all directions including substantially along the radial direction from the center of the object being imaged. Further, magnetic field intensity is measured at each point along three mutually perpendicular directions. This measured data captures all the available information and facilitates a computationally efficient closed-form solution to the 3D image reconstruction problem without the use of heuristic assumptions. This is unlike prior art where measurements are made only on a surface at a nearly constant radial distance from the center of the target object, and along a single direction. Therefore necessary, useful, and available data is ignored and not measured in prior art. Consequently, prior art does not provide a closed-form solution to the 3D image reconstruction problem and it uses heuristic assumptions. The methods and apparatuses of the present invention reconstruct a 3D image of the neural/muscle electrical current pattern in MEG, MCG, and related areas, by processing image data in either the original spatial domain or the Fourier domain. | 12-22-2011 |
20120022359 | CAPSULE MEDICAL DEVICE GUIDANCE SYSTEM - A capsule medical device guidance system includes a capsule medical device including a magnetic field responding unit and introduced into a subject, a magnetic field generator that generates a magnetic field for the responding unit to guide the device; an operation input unit for inputting operation information for magnetically guiding the device; a storage unit that stores position/posture information about position or posture of the device in an guidance region; an input unit for inputting setting instruction information for setting the position/posture information as a mark indicating a position to which the device is returned in the region, and return instruction information for returning the device to the mark; and a control unit that controls the generator to guide the device based on the operation information, and makes the generator generate the magnetic field to the mark based on the stored position/posture information in response to the return instruction information. | 01-26-2012 |
20120035456 | ARRANGEMENT FOR IMAGING AN OBJECT INCLUDING A VESSEL USING MAGNETIC PARTICLE IMAGING - An arrangement ( | 02-09-2012 |
20120035457 | ELECTROMAGNETIC SYSTEM AND METHOD - Differences of electromagnetic (EM) properties between healthy and cancerous tissues allow detection of abnormal conditions occurring in a tissue of an animal, for example, intra-operative cancer detection. By using a time-varying EM field, electrical eddy currents are generated in the tissue sample, and assessed using phase-sensitive detection. In some aspects, a change in phase shift between the voltage in a receiver coil and the voltage in a driver coil provide a direct and immediate indication of differences in EM properties of specimens. | 02-09-2012 |
20120035458 | DETECTION, MEASUREMENT, AND IMAGING OF CELLS SUCH AS CANCER AND OTHER BIOLOGIC SUBSTANCES USING TARGETED NANOPARTICLES AND MAGNETIC PROPERTIES THEREOF - The present invention can provide a method of determining the presence, location, quantity, or a combination thereof, of a biological substance, comprising: (a) exposing a sample to a plurality of targeted nanoparticles, where each targeted nanoparticle comprises a paramagnetic nanoparticle conjugated with one or more targeting agents that preferentially bind with the biological substance, under conditions that facilitate binding of the targeting agent to at least one of the one or more biological substances; (b) subjecting the sample to a magnetic field of sufficient strength to induce magnetization of the nanoparticles; (c) measuring a magnetic field of the sample after decreasing the magnetic field applied in step b below a threshold; (d) determining the presence, location, quantity, or a combination thereof, of the one or more biologic substances from the magnetic field measured in step (c). | 02-09-2012 |
20120041297 | REAL-TIME MAGNETIC DIPOLE DETECTION AND TRACKING - A system for detecting a position and/or orientation of a magnetic dipole includes a first detector and a second detector, separate and spaced apart from the first detector. Each of the detectors includes three or more magnetic field sensors to detect a magnetic field generated by the magnetic dipole. The system has applications, for example, in image-guided surgery and/or therapy. | 02-16-2012 |
20120059240 | METHOD FOR PREPARATION OF MICELLAR HYBRID NANOPARTICLES FOR THERAPEUTIC AND DIAGNOSTIC APPLICATIONS AND COMPOSITIONS THEREOF - The disclosure provides a long-circulating, micellar hybrid nanoparticles (MHN) that contain MN, QD, and the anti-cancer drug doxorubicin (DOX) within a single polyethylene glycol (PEG)-phospholipid micelle and provide the first examples of simultaneous targeted drug delivery and dual-mode NIR-fluorescent and MR imaging of diseased tissue in vitro and in vivo. | 03-08-2012 |
20120059241 | SYSTEMS AND METHODS FOR MAKING AND USING A STEERABLE IMAGING SYSTEM CONFIGURED AND ARRANGED FOR INSERTION INTO A PATIENT - A medical imaging assembly includes a sheath with a lumen. An imaging core is disposed at one end of an imaging core shaft disposed in the lumen. The imaging core shaft bends along a shape memory region when the imaging core is extended from the lumen. The imaging core includes a transducer to image patient tissue, a mirror to redirect acoustic signals between the transducer and patient tissue, and a magnet to drive rotation of the mirror. The magnet is rotatable by a magnetic field generated at the location of the magnet. An imaging core shaft rotator rotates the imaging core shaft such that, when the imaging core is extended from the lumen, rotation of the imaging core shaft causes radial rotation of the imaging core about the sheath. The imaging core shaft rotator includes rotatable imaging core shaft magnets fixedly disposed over a portion of the imaging core shaft. | 03-08-2012 |
20120065491 | ARRANGEMENT AND METHOD FOR INFLUENCING AND/OR DETECTING MAGNETIC PARTICLES - The present invention relates to an arrangement and a method for influencing and/or detecting magnetic particles in a region of action, in particular for monitoring of intra-cerebral or intra-cranial bleeding using Magnetic Particle Imaging (MPI). A common coupling unit per coil of a coil array is provided for coupling all signals for generating the magnetic fields to the set of common coils. Further, the same coils are used for acquiring detection signals. In this way a small scanner can be built that can be left permanently or can be provided periodically to the patient, in particular for bleeding monitoring. | 03-15-2012 |
20120083684 | DIGITAL DISTANCE MEASURER FOR NERVE CONDUCTION STUDIES - Nerve conduction studies (NCS) are used to diagnose many types of disorders and are being employed more and more frequently. Current methods for distance measurement during a NCS are manual and often time consuming and vulnerable to considerable error. A device and system for electronically measuring distance during a NCS and automatically transferring the data is disclosed. In one embodiment, the device incorporates a contact wheel to travel across the surface of the subject's skin to measure the applicable distance. | 04-05-2012 |
20120095319 | Guidewire-Assisted Catheter Placement System - A catheter assembly for providing precise placement of a catheter distal end at a desired location within the patient vasculature is disclosed. In one embodiment, the catheter assembly comprises a catheter including an elongate body that defines a proximal end, a distal end, and a lumen extending therebetween. A guidewire is also included and is configured for being received within the lumen of the catheter and for guiding the catheter through the patient vasculature. The guidewire includes a plurality of depth markings along at least a portion of a length of the guidewire. The depth markings indicate a distance between a distal end of the guidewire and an insertion site through which the guidewire passes into the patient vasculature. The guidewire further includes a modified tip configured for assisting in guidewire advancement through the vasculature, and a proximal end orientation feature that indicates the orientation of the modified tip. | 04-19-2012 |
20120101361 | SYSTEM AND METHOD FOR IDENTIFYING A LANDMARK | 04-26-2012 |
20120143038 | FUNCTIONAL ASSESSMENT OF A NETWORK - A computer-implemented method for performing a functional assessment of a network is disclosed. The network includes a plurality of interacting network elements. The method includes measuring a state of each of the elements at a plurality of time instances, thereby determining a plurality of state values associated with each of the elements, and calculating for each element an associated median value representing a median of the state values associated with that element. The method further includes identifying for each time instance a first total number of elements with an associated state value at that time instance that is above its median value, and a second total number of elements with an associated state value at that time instance that is below its median value, and determining whether the network has departed from an equilibrium state based on the first total number and the second total number for each time instance. | 06-07-2012 |
20120143039 | ORAL DOSAGE FORM, COMPRISING AT LEAST ONE BIOLOGICALLY ACTIVE AGENT, FORMULATION AUXILIARY SUBSTANCES AND MAGNETIZABLE PARTICLES - The invention relates to an oral dosage form, comprising at least one biologically active agent, formulation auxiliary substances and magnetizable particles, wherein the dosage form has an at least two phase composition, wherein the phases can dissolve in the body after oral administration due to their formulation and the magnetizable particles are bound in formulation auxiliary substances and are present in a magnetized state, wherein the magnetized particles are present in at least two phases of the dosage form and generate magnetic fields, wherein these phases dissolve at different times in the body after oral administration, and wherein the magnetic field strength with respect to time, position and movement in the body is acquired using a detection system and can be evaluated using a computer-based evaluation system. | 06-07-2012 |
20120165649 | APPARATUS AND METHOD FOR MEASURING THE INTERNAL PRESSURE OF AN EXAMINATION OBJECT - The present invention relates to an apparatus ( | 06-28-2012 |
20120172703 | CATHETER WITH SINGLE AXIAL SENSORS - A catheter is provided with improved position and/or location sensing with the use of single axis sensors that are mounted directly along a length or portion of the catheter whose position/location is of interest. The magnetic based, single axis sensors are provided on a single axis sensor (SAS) assembly, which can be linear or nonlinear as needed. A catheter of the present invention thus includes a catheter body and a distal member of a particular 2D or 3D configuration that is provided by a support member on which at least one, if not at least three single axis sensors, are mounted serially along a length of the support member. In one embodiment, the magnetic-based sensor assembly including at least one coil member that is wrapped on the support member, wherein the coil member is connected via a joint region to a respective cable member adapted to transmit a signal providing location information from the coil member to a mapping and localization system. The joint region advantageously provides strain relief adaptations to the at least one coil member and the respective cable member from detaching. | 07-05-2012 |
20120209105 | MAGNETIC-FIELD MEASUREMENT JIG, MAGNETIC-FIELD MEASUREMENT PROGRAM, AND INSPECTION DEVICE PROVIDED WITH MAGNETIC POSITION DETECTOR - In order to provide a highly reliable inspection device that prevents a loss in reliability of inspection that uses information from a position detector as a result of the influence of magnetic bodies or the like that are present in the environment, the inspection device is characterized by being provided with biological information measurement units ( | 08-16-2012 |
20120220853 | METHOD OF MEASURING PROPERTIES OF AN OBJECT WITH ACOUSTICALLY INDUCED ELECTROMAGNETIC WAVES - A measuring method and apparatus in which a measurable object ( | 08-30-2012 |
20120220854 | Integrated System for Intravascular Placement of a Catheter - An integrated catheter placement system for accurately placing a catheter within a patient's vasculature is disclosed. In one embodiment, the integrated system comprises a system console, a tip location sensor for temporary placement on the patient's chest, and an ultrasound probe. The tip location sensor senses a magnetic field of a stylet disposed in a lumen of the catheter when the catheter is disposed in the vasculature. The ultrasound probe ultrasonically images a portion of the vasculature prior to intravascular introduction of the catheter. The ultrasound probe includes user input controls for controlling use of the ultrasound probe in an ultrasound mode and use of the tip location sensor in a tip location mode. In another embodiment, ECG signal-based catheter tip guidance is included in the integrated system to enable guidance of the catheter tip to a desired position with respect to a node of the patient's heart. | 08-30-2012 |
20120226135 | PRIMARY SOURCE MIRROR FOR BIOMAGNETOMETRY - Apparatus and methods to enable the complete detection and assessment of electric currents flowing in a conductive medium not only parallel, but also perpendicular to the boundary separating the conducting medium from a non-conducting medium by means of a magnetometer located outside of the conducting medium itself. | 09-06-2012 |
20120232376 | METHODS AND SYSTEMS FOR CHANNEL SELECTION - A system and method for estimating a property of a neural or cardial source using inverse problem solving including a forward numerical model comprises a selection means for selecting at least one subset of a plurality of measurement channels, the selection taking into account the sensitivity of the measurement channel results to conductivity in the forward numerical model for the neural or cardial source. The system also includes a calculation means for determining a property of the neural or cardial source based on said at least one selected subset of measurement channel results. A corresponding computer program product and a controller adapted for controlling a system accordingly, are described. | 09-13-2012 |
20120238860 | System and Method for Measuring Magnetocardiogram of Small Animal - A system and method for measuring a magnetocardiogram (MCG) in order to measure a weak magnetic field generated from the heart of a small animal such as a laboratory rat are provided. The system includes a case, a SQUID sensor located and fixed inside the case to detect magnetism, a platform arranged near the SQUID sensor inside the case, the small animal being placed on the platform, a linear station to which the platform is fixed to move a location of the platform, and a control unit configured to control operations of the SQUID sensor and the linear station and measure the MCG of the small animal using intensities of the magnetism detected by the SQUID sensor. | 09-20-2012 |
20120253167 | FORCE MEASUREMENT FOR LARGE BEND ANGLES OF CATHETER - A method for calibrating a force measuring probe comprises providing a probe having an insertion tube with a distal tip, a joint comprising a resilient member, a joint sensor in conjunction with a processor coupled to the probe wherein the processor has a memory of an axial displacement threshold for the joint stored therein; applying force to the distal tip; measuring the displacement and deflection of the distal tip; correlating the measured displacement and deflection of the distal tip to the applied force and storing the correlation in the memory until reaching the axial displacement threshold; applying force greater than the axial displacement threshold to the distal tip to define a new force value; measuring the position of the distal tip in a plane transverse to the direction of force exerted on the distal tip; correlating the measured position of the distal tip in the plane transverse to the direction of force to the new force value and storing the correlation in the memory until reaching a pre-established upper limit for the new force value. | 10-04-2012 |
20120253168 | Method and apparatus for producing and detecting non-local effects of substances - A method and apparatus are disclosed which produce and detect quantum entanglement and non-local effects of substances on responsive targets such as biological systems. In one embodiment, the method includes the steps of providing two parts of a quantum-entangled medium, applying one part to a biological system such as a human, contacting the other part with a desired substance such as a medication or substance encoded with a message, and detecting change of a biological parameter with a detecting device, whereby a non-local effect of the substance on the said biological system is produced and detected for a beneficial purpose. Also described are a number of implementations. | 10-04-2012 |
20120265048 | SYSTEM FOR PROVIDING MAGNETIC, LIGHT AND CRYSTAL ENERGY THERAPY - A system for providing treatment signals to a body of an individual includes a magnetic field measurement circuitry for measuring the magnetic field of the body of the individual and providing feedback information responsive thereto. A user interface displays the feedback information and receives a control input. A plurality of energy treatment circuitries each provides treatment energy to the body of the individual responsive to at least one control signal. An application interface applies the treatment energy to the body of an individual. A control block generates the at least one control signal responsive to the control input. | 10-18-2012 |
20120271145 | PRESSURE SENSING FOR A MULTI-ARM CATHETER - A method for operating a medical probe includes pressing a distal end of the medical probe, which includes one or more arms that extend diagonally outward from a central shaft and have respective position transducers coupled thereto, against an intra-body surface, so as to cause the arms to exert pressure on the surface and bend with respect to the central shaft in response to the pressure. Positions of the respective position transducers coupled to the arms are measured, and the pressure exerted by the arms is estimated responsively to the measured positions. | 10-25-2012 |
20120283545 | SYSTEMS AND METHODS FOR DEEP VASCULAR ACCESS - Percutaneous endovascular delivery of cardiac prosthetic devices is described through deep vascular access. Specifically, minimally intrusive access is achieved at points in the vascular tree having a size not usually achievable with existing tools. Localizing guide wires having visualization markings enable controlled passage through the vascular system. | 11-08-2012 |
20120302867 | BRAIN FUNCTION MEASURING APPARATUS AND BRAIN FUNCTION MEASURING METHOD - A brain function activity of a subject is measured using a brain function measuring unit by presenting multiple stimulations, which are adjusted to have no cognitive meaning when presented in a separate manner and to have a cognitive meaning when presented simultaneously as a combined stimulation, to the subject as the combined stimulation at regular intervals with a control of a control unit, thus measuring a higher cognitive brain activity responding to the combined stimulation separately from a lower cognitive brain activity. | 11-29-2012 |
20120302868 | TEXTURE STIMULUS PRESENTING APPARATUS, MAGNETIC RESONANCE IMAGING APPARATUS AND MAGNETOENCEPHALOGRAPH INCLUDING THE SAME, AND BRAIN FUNCTION MEASURING METHOD - Provided is a texture stimulus presenting apparatus to be used when measuring a texture perception of a subject by detecting a change of a magnetic field in a brain of the subject. The texture stimulus presenting apparatus includes a light source configured to irradiate with light a specimen to be presented to the subject, and a control unit configured to control at least one of position of the light source, tilt of the light source, property of irradiation light from the light source, timing of irradiation, or surface morphology of the specimen facing the light source. | 11-29-2012 |
20120302869 | CORRECTION OF SHIFT AND DRIFT IN IMPEDANCE-BASED MEDICAL DEVICE NAVIGATION USING MAGNETIC FIELD INFORMATION - A system and method for navigating a medical device within a body are provided. The system includes an electronic control unit configured to determine operating positions for electrical and magnetic position sensors on the medical device within corresponding first and second coordinate systems. The first and second coordinate systems are defined by an electric field based positioning system and a magnetic field based positioning system, respectively. The magnetic position sensor is disposed proximate the electrical position sensor. The ECU is further configured to apply a mapping function correlating the operating positions which generates a mapped position for the magnetic position sensor in the first coordinate system responsive to the operating position of the magnetic position sensor in the second coordinate system. The ECU determines an adjusted operating position for the electrical position sensor in the first coordinate system responsive to the mapped position of the magnetic position sensor. | 11-29-2012 |
20120310076 | APPARATUS AND METHOD FOR INFLUENCING AND/OR DETECTING MAGNETIC PARTICLES IN A FIELD OF VIEW HAVING AN ARRAY OF SINGLE-SIDED TRANSMIT COIL SETS - The present invention relates to an apparatus and a method for influencing and/or detecting magnetic particles in a field of view. To increase the field of view and, at the same time, allow access to the patient during imaging, the apparatus comprises two or more transmit coil sets ( | 12-06-2012 |
20120310077 | Neurophysiological Activation by Vestibular or Cranial Nerve Stimulation - A method of treating a disorder may include positioning a thermoelectric device in the ear canal of a subject and activating the thermoelectric device to deliver caloric vestibular stimulation and/or cranial nerve stimulation effective to treat the disorder. In some embodiments, the ear canal may be cooled sufficiently to treat the disorder. In alternative embodiments, the ear canal may be warmed sufficiently to treat the disorder. | 12-06-2012 |
20130041248 | APPARATUS AND METHOD FOR MONITORING THE POSITION OF AN ORTHOPAEDIC PROSTHESIS - A system, apparatus, and method for determining a position of an orthopaedic prosthesis includes a patient support platform, a sensor array coupled to the patient support platform, and a controller electrically coupled to the sensor array. The sensor array is configured to generate data signals in response to an output signal of a signal source(s) coupled to the orthopaedic prosthesis and/or a bone of the patient. The controller is configured to determine a position of the orthopaedic prosthesis and/or the bone of the patient based on the data signals. | 02-14-2013 |
20130060125 | ENCEPHALOGRAPHY METHOD AND APPARATUS INCORPORATING INDEPENDENT COMPONENT ANALYSIS AND A SPECTRAL SHAPING FILTER - Methods and apparatus for encephalography process encephalography data to yield components that correspond to modular areas of the brain. In some embodiments encephalography data is processed by independent component analysis to yield a first set of components that are processed to generate a spectral filter. The spectral filter is applied to the encephalography data to generate a second set of components. The second set of components may be represented by one or more matrices. In an embodiment the second set of components is represented by weight and sphereing matrices. Methods and apparatus may be applied for monitoring brain function, selecting participants for medical trials, adjusting drug dosages, performing and monitoring biofeedback methods, detecting progression toward diseases or conditions that affect the brain and other applications. | 03-07-2013 |
20130072780 | SYSTEM AND METHOD FOR MAGNETIC CURRENT DENSITY IMAGING AT ULTRA LOW MAGNETIC FIELDS - Preferred systems can include an electrical impedance tomography apparatus electrically connectable to an object; an ultra low field magnetic resonance imaging apparatus including a plurality of field directions and disposable about the object; a controller connected to the ultra low field magnetic resonance imaging apparatus and configured to implement a sequencing of one or more ultra low magnetic fields substantially along one or more of the plurality of field directions; and a display connected to the controller, and wherein the controller is further configured to reconstruct a displayable image of an electrical current density in the object. Preferred methods, apparatuses, and computer program products are also disclosed. | 03-21-2013 |
20130079622 | Denoise MCG Measurements - A magnetocardiogram (MCG) system with reduced noise artifacts is produced by first creating high-resolution image representations of low-resolution measurements obtained with a magnetic field sensor unit. The high-resolution image representations are created by use of a PCA model that has been trained using a library of ideal, no-noise, high-resolution images. The Biot-Sarvart Law is then used to create a 3D model of a current impulse, given the high-resolution image representations. From the 3D current impulse model, ideal sensor unit measurements as they would have been obtained using a theoretical sensor unit observing the 3D current impulse model are synthesized. | 03-28-2013 |
20130079623 | Imaging Method using Magnetic Small Particles and Corresponding Device - The invention relates to a method for imaging from a distribution of small magnetic particles. According to said method, the magnetisation of the small particles is rotated asynchronously to the magnetic field by means of an outer magnetic field of suitable field intensity and rotational frequency, which rotates about a longitudinal axis (z), whereby an asynchronous average rotational frequency is generated for a set of particles according to the field intensity; a spatial dependence is impressed on each set of particles by means of a magnetic gradient field of the asynchronous average rotational frequency; the frequency parts of the superpositioned transverse magnetisation (MQ) of the set of particles are detected; and a spatially resolved distribution of the transverse magnetisation (MQ) determines the small particles and emits same by means of the frequency parts. The invention also relates to a suitable device ( | 03-28-2013 |
20130090545 | METHODS AND APPARATUSES FOR THE LOCALIZATION AND TREATMENT OF CANCER - Embodiments of the present invention provide methods of detecting cancer, methods of treating cancer using targeted hyperthermia, methods of treating cancer using targeted chemical agents, methods of treating cancer comprising accurate measurements of the efficacy of treatments. The effect of nanoparticles on magnetic fields can be used to determine the location of a tumor, and a measure of the number of cells in the tumor. This location and measure can be used to guide therapy, and provide information regarding the most effective therapy to be applied. The same nanoparticles can be used to facilitate hyperthermia treatments, and to allow targeted application of chemical therapeutic agents. | 04-11-2013 |
20130102876 | Port System and Methods - An implantable port system which in at least one embodiment includes a base having an upper surface configured to be positioned under and in contact with a first tissue surface in a body, and a port housing having a lower surface configured to be positioned over a second tissue surface above the first tissue surface. The base and the port housing may be separate from one another and do not contact each other at the time of positioning the base. The base and port may be connected together upon positioning the port in contact with the second tissue surface. A method of implanting a port system may include installing at least a portion of a base of the system beneath a tissue layer in a body, and attaching a port housing to the base at a location above the tissue layer, wherein the port housing is not in contact with the base during the installation of a least a part of the base system beneath the tissue layer. | 04-25-2013 |
20130109954 | METHOD FOR ADJUSTING INTERFERENCE SIGNAL SPACE IN BIOMAGNETIC FIELD MEASUREMENTS | 05-02-2013 |
20130131489 | CATHETER WITH BENDABLE TIP - A medical probe includes a flexible insertion tube, having a distal end for insertion into a body cavity of a patient, and a distal tip, which is disposed at the distal end of the insertion tube and is configured to be brought into contact with tissue in the body cavity. A coupling member couples the distal tip to the distal end of the insertion tube and includes a tubular piece of an elastic material having a helical cut therethrough along a portion of a length of the piece. | 05-23-2013 |
20130144152 | STOCHASTIC RESONANCE AND BROWNIAN MOTION FOR THE REDUCTION OF SUDDEN INFANT DEATH SYNDROME (SIDS) - Inventive embodiments include a system for preventing Sudden Infant Death Syndrome (SIDS) in an infant, by the application of Stochastic Resonance neurological stimuli. The system includes a crib mattress and copper noise grids, wherein the copper noise grids are embedded in the crib mattress. The system also includes a mechanism for generating time controlled white noise and time controlled cyclic signals, combined with a multitude of varying frequencies and harmonics, wherein the mechanism is adjustable for measured local (near crib) white noise power density levels, the mechanism further adjustable for diurnal and seasonal white noise power density level changes. The system also includes circuitry effective for producing positive and negative adjustable DC voltage levels. | 06-06-2013 |
20130144153 | FUNCTIONAL MAGNETIC RESONANCE IMAGING APPARATUS AND METHODS - This disclosure provides systems, methods, and apparatus related to functional magnetic resonance imaging. In one aspect, a method may include generating a bulk magnetization in a subject, establishing a longitudinal relaxation time constant (T | 06-06-2013 |
20130150702 | MAGNETIC FIELD MEASURING APPARATUS AND CELL ARRAY - A magnetic field measuring apparatus includes a cell array which includes plural cells different in size of detection surface through which a magnetic flux passes when the cells are arranged in a magnetic field of a measurement object, a medium which is enclosed inside each of the plural cells and rotates a light polarization plane according to an intensity of the magnetic field, an irradiator to irradiate a light to the detection surface of each of the cells, and a detector to detect a rotation angle of a polarization plane of the light passing through each of the cells. | 06-13-2013 |
20130165766 | Biomagnetism Measuring Device, Biomagnetism Measuring System, and Biomagnetism Measuring Method - A biomagnetism measuring device includes a magnetic sensor and a support unit. The magnetic sensor includes a tunnel magneto-resistive element including a fixed magnetic layer, a free magnetic layer and an insulating layer. The insulating layer is disposed between the fixed magnetic layer and the free magnetic layer, and has resistance being changed by a tunnel effect depending on an angle difference between a direction of magnetization of the fixed magnetic layer and a direction of magnetization of the free magnetic layer. The support unit supports the magnetic sensor in such a way that the tunnel magneto-resistive element faces a living body. The magnetic sensor outputs an output signal in accordance with a resistance value of the insulating layer, the resistance value being changed by magnetism emitted from the living body. | 06-27-2013 |
20130178730 | Use of Machine Learning for Classification of Magneto Cardiograms - The use of machine learning for pattern recognition in magnetocardiography (MCG) that measures magnetic fields emitted by the electrophysiological activity of the heart is disclosed herein. Direct kernel methods are used to separate abnormal MCG heart patterns from normal ones. For unsupervised learning, Direct Kernel based Self-Organizing Maps are introduced. For supervised learning Direct Kernel Partial Least Squares and (Direct) Kernel Ridge Regression are used. These results are then compared with classical Support Vector Machines and Kernel Partial Least Squares. The hyper-parameters for these methods are tuned on a validation subset of the training data before testing. Also investigated is the most effective pre-processing, using local, vertical, horizontal and two-dimensional (global) Mahanalobis scaling, wavelet transforms, and variable selection by filtering. | 07-11-2013 |
20130178731 | METHODS AND APPARATUS FOR RISK ASSESSMENT OF DEVELOPMENTAL DISORDERS DURING EARLY COGNITIVE DEVELOPMENT - The nonlinear complexity of EEG signals is believed to reflect the scale-free architecture of the neural networks in the brain. Analysis of the complexity and synchronization of EEG signals as described herein provides a quantitative measure for routine monitoring of functional brain development in infants and young children and provide a useful biomarker for detecting functional abnormalities in the brain before the cognitive, behavioral or social manifestations of these brain developments can be observed and measured by standard tests. One or more machine learning algorithms are used to discover relevant patterns in the complexity and synchronization values determined from the EEG data to facilitate risk assessment and/or diagnosis of developmental disorders in infants and young children by predicting cognitive, behavioral and social outcomes of the measured functional brain activity patterns. | 07-11-2013 |
20130184558 | APPARATUS AND METHOD FOR DECODING SENSORY AND COGNITIVE INFORMATION FROM BRAIN ACTIVITY - Decoding and reconstructing a subjective perceptual or cognitive experience is described. A first set of brain activity data produced in response to a first brain activity stimulus is acquired from a subject using a brain imaging device and converted into a corresponding set of predicted response values. A second set of brain activity data produced in response to a second brain activity stimulus is acquired from a the subject and decoded using a decoding distribution and the probability the second set of brain activity data corresponds to said predicted response values is determined. The second set of brain activity stimuli is then reconstructed based on the probability of correspondence between the second set of brain activity data and the predicted response values. | 07-18-2013 |
20130190597 | Method and Device for Evaluation of Local Tissue's Biological or Biomechanical Character - A device for evaluation of a tissue's biological or biomechanical character is disclosed. The device uses negative pressure to draw a portion of the tissue across one or more electrode pairs disposed within the device. By measuring one or more parameters associated with an electric or magnetic field defined by the electrode pairs, in vivo evaluation of the tissue's biological or biomechanical character may be achieved in a minimally invasive manner. The device may also include an indenter to apply a positive stress on the tissue within the sidewall to further evaluate its biological or biomechanical character. A method of using the device is also disclosed. | 07-25-2013 |
20130190598 | MAGNETIC FIELD DEVICE FOR MAPPING AND NAVIGATION IN LAPAROSCOPIC SURGERY - Devices, systems and methods for using those devices and systems are disclosed to facilitate mapping and navigation during a minimally invasive surgical procedure. These devices, systems and methods include implantable magnetic devices and sensing devices that facilitate locating the implantable magnetic devices such that a surgeon can accurately locate and place devices at particular points of interest during a medical procedure. | 07-25-2013 |
20130190599 | DIAGNOSTIC SYSTEM FOR DETECTION OF FLUID CHANGES - A diagnostic system for monitoring changes in a medium is disclosed. The system includes a transmitter configured to generate and transmit a time-varying magnetic field into a medium responsive to a first signal. The system also includes a receiver positioned on an opposite side of the medium from the transmitter and configured to generate a second signal responsive to a received magnetic field at the receiver. The system also includes a processing unit configured to determine a phase shift between the transmitted magnetic field and the received magnetic field for a plurality of frequencies of the transmitted time-varying magnetic field. | 07-25-2013 |
20130197346 | HEMOGLOBIN CONTRAST IN MAGNETO-MOTIVE OPTICAL DOPPLER TOMOGRAPHY, OPTICAL COHERENCE TOMOGRAPHY, AND ULTRASOUND IMAGING METHODS AND APPARATUS - Provided herein are systems, methods, and compositions for the use of optical coherence tomography for detection of cells. | 08-01-2013 |
20130204114 | ENHANCED MULTI-CORE BEAMFORMER ALGORITHM FOR SENSOR ARRAY SIGNAL PROCESSING - Techniques and systems are disclosed for implementing multi-core beamforming algorithms. In one aspect, a method of implementing a beamformer technique includes using a spatial filter that contains lead-fields of two simultaneous dipole sources rather than a linear combination of the two to directly compute and obtain optimal source orientations and weights between two highly-correlated sources. | 08-08-2013 |
20130217997 | Method and apparatus for localizing an ultrasound catheter - An imaging system is provided with an ultrasound catheter and a controller coupled to the ultrasound catheter. The catheter includes a localizer sensor configured to generate positional information for the ultrasound catheter, and an imaging ultrasound sensor having a restricted field of view. The controller co-registers images from the imaging ultrasound sensor with positional information from the localizer sensor. | 08-22-2013 |
20130217998 | Motion Tracking System with Inertial-Based Sensing Units - Systems, apparatus, and method of monitoring a position of a joint. An inertial monitoring unit is configured to be coupled to a portion of a patient, such as a thigh. Another inertial monitoring unit is configured to be attached to another portion of the patient, such as a shank, that is connected to the other portion by a joint, such as a knee. The inertial monitoring units detect motion of their respective portions of the patient and transmit data indicative of this motion. These transmissions may be received by a computer and used to determine an orientation of the joint. The inertial monitoring units may also be coupled to vibration detection units and/or ultrasound modules that provide additional data regarding a condition of the joint. | 08-22-2013 |
20130217999 | Systems and Methods for Positioning a Catheter - A method for displaying a position of a medical device, such as a catheter, during insertion thereof into a patient. In one example embodiment, the method includes obtaining a first set of detected position data relating to a location marker, such as a permanent magnet, then determining a possible first position thereof. A first confidence level relating to a match between the first set of detected position data and a first set of predicted position data is assigned. A determination is made whether the first confidence level meets or exceeds a first threshold. If the first confidence level meets or exceeds the first threshold, a determination is then made whether the first position of the location marker is within a first detection zone. If the first position of the location marker is within the first detection zone, the first position of the location marker is displayed. | 08-22-2013 |
20130225972 | ALERTING USERS OF CPR FEEDBACK DEVICE OF DETECTED MAGNETIC INTERFERENCE - A medical device and/or a method are used by a rescuer who is caring for a patient. The depth of CPR chest compressions is determined, by detecting magnetic fields. An interference is sensed, which is not associated with the CPR chest compressions, but which is superimposed on the detected magnetic fields. Appropriate countermeasures may be taken, if the sensed interference is larger than a threshold. | 08-29-2013 |
20130245421 | FOREIGN BODY LOCATION AND RETRIEVAL DEVICE - Devices having the capability to both locate and retrieve objects are disclosed. More particularly, the present disclosure relates to devices having a probe comprising an ultrasound detector for locating and a grasper for retrieving objects from a medium. The present disclosure further relates to devices having a probe comprising an electromagnetic detector for locating and a grasper for retrieving metallic objects from a medium. Devices of the present disclosure are specifically adapted for use as medical devices for locating and retrieving a foreign body in a subject in need. | 09-19-2013 |
20130245422 | Cognitive Function Assessment in a Patient - A method for analysis of the extent of conscious awareness and likelihood of recovery of a patient includes the steps of applying to the patient a sensory stimulus sequence which is typically auditory; carrying out an EEG to generate waveform signals to record changes in the electromagnetic fields generated by the patient's neural activity; using software provided in a processor to process the waveform signals in order to locate waveform peaks, identify the event-related potential (ERP) components obtained in the waveform and to obtain quantitative measures of those components; and using the software to generate and communicate scores indicative of the extent of conscious awareness and likelihood of recovery of the patient. | 09-19-2013 |
20130245423 | Physiological Monitoring Garment - The present invention is directed to systems and methods for monitoring characteristics of a subject. A system according to an exemplary embodiment of the invention includes a sensor subsystem including at least one respiratory sensor disposed proximate to the subject and configured to detect a respiratory characteristic of the subject, wherein the sensor subsystem is configured to generate and transmit at least one respiratory signal representing the respiratory characteristic, and at least one physiological sensor disposed proximate to the subject and configured to detect a physiological characteristic of the subject, wherein the sensor subsystem is configured to generate and transmit at least one physiological signal representing the physiological characteristic, and a processor subsystem in communication with the sensor subsystem, the processor subsystem being configured to receive at least one of the at least one respiratory signal and the at least one physiological signal. | 09-19-2013 |
20130253303 | Host Cells with Artificial Endosymbionts - The present invention is directed generally to eukaryotic cells comprising single-celled organisms that are introduced into the eukaryotic cell through human intervention and which transfer to daughter cells of the eukaryotic cell through at least five cell divisions, and methods of introducing such single-celled organisms into eukaryotic cells. The invention also provides methods of using such eukaryotic cells. The invention further provides single-celled organisms that introduce a phenotype to eukaryotic cells that is maintained in daughter cells. The invention additionally provides eukaryotic cells containing magnetotactic bacteria. | 09-26-2013 |
20130253304 | APPARATUS AND METHOD FOR INFLUENCING AND/OR DETECTING MAGNETIC PARTICLES - The present invention relates to an apparatus and a method for influencing and/or detecting magnetic particles in a field of view ( | 09-26-2013 |
20130267824 | NAVIGABLE TISSUE TREATMENT TOOLS - Tools for accessing tissue are described for use with a locatable guide of a navigation system. In preferred embodiments, said tools are attachable to a distal tip of a locatable guide, such that the location of the tool, preferably in six degrees of freedom, is known while the tool is being used. | 10-10-2013 |
20130274587 | Wearable Athletic Activity Monitoring Systems - A sensor garment for monitoring an individual engaged in an athletic activity includes a garment formed of textile material, and a sensor module inseparably coupled to the textile material of the garment. The sensor module includes a single-purpose sensor configured to sense a single characteristic, and a radio antenna configured to transmit data generated by the single-purpose sensor. The sensor module includes no external port. | 10-17-2013 |
20130274588 | ELECTRONIC PELVIC ORGAN PROLAPSE QUANTIFICATION SYSTEM - Systems and related methods for measuring pelvic organ prolapse are disclosed. A plurality of positioning devices, such as RFID tags, ultrasound reflectors or magnetic field sensors, which may be active or passive, and which are preferably disposable, are set at predetermined positions within the patient and their relative positions recorded with one or more corresponding external receiving devices fixed to the patient while the patient is in a relaxed state. The patient is then instructed to perform an action (such as a valsalva maneuver) that causes the positioning devices to move and their movement relative to their initial recorded positions is measured. | 10-17-2013 |
20130281821 | INTRAOPERATIVE CAMERA CALIBRATION FOR ENDOSCOPIC SURGERY - A surgical navigation system employs an endoscope ( | 10-24-2013 |
20130289383 | Magnetic Relaxometry using Brownian Randomization, Neel Relaxation, or Combinations Thereof - The present invention can provide a method of determining the communication of substances between a first region and a second region of a patient's body. An example method according to the present invention can comprise: (a) introducing into the first region a plurality of superparamagnetic nanoparticles, having properties such that they undergo Brownian motion that randomizes the orientation of the nanoparticles according to a predetermined characteristic time; (b) after a time sufficient to allow transport of nanoparticles from the first region to the second region, subjecting the second region to an applied magnetic field of sufficient strength to induce magnetization of individual nanoparticles, and having a substantially uniform direction throughout the second region; (c) measuring the magnetic field of the second region at a plurality of times after ceasing application of the magnetic field; (d) analyzing the measured magnetic field to detect signals that correspond to decay of the magnetic field due to randomization of the nanoparticles' orientation by Brownian motion; (e) determining the presence of nanoparticles in the second region from the signals detected in step (d). | 10-31-2013 |
20130303878 | SYSTEM AND METHOD TO ESTIMATE LOCATION AND ORIENTATION OF AN OBJECT - A tracking system for estimating the position and orientation of an object inside a patient comprising electromagnets that generate magnetic fields used to navigate an object, including rotating and translating the object, are used to track the position of the object. Position tracking of the object is concurrent with navigating the object; or interleaved with navigating the object. Using the same electromagnets for navigation and tracking ensure coordinate system registration between the navigation system and the position tracking system. A tracking sensor attached to the object comprises at least a single coil generating signals in response to time varying tracking magnetic field generated by the electromagnets. Iterative algorithm is used to estimate position and orientation from sensor's signal. Linearly time varying current in the tracking electromagnets is produced by applying calculated voltage waveform to the electromagnet coils. | 11-14-2013 |
20130317337 | Continuous Modeling for Dipole Localization from 2D MCG Images with Unknown Depth - A system identifies double-layer dipoles in a magnetic image by defining two-dimensional patches of distributed point charges that simulate the double-layer dipoles. The geometric center of a two-dimensional patch is used as the location of an equivalent dipole moment of the double-layer dipole. The momentum of the equivalent dipole moment is determined by submitting the magnetic image to a dipole construction system that identifies the location and momentum based on the submitted magnetic image. | 11-28-2013 |
20130317338 | Percutaneous Magnetic Gastrostomy - A medical device system includes a needle having a tip including a permanent magnet, and a magnet sensing device including a plurality of sensors configured to detect the magnetic field of the permanent magnet. The magnet sensing device is operable to localize a position of the permanent magnet relative to the magnet sensing device and to indicate a path of the needle on a display. | 11-28-2013 |
20130317339 | ENDOBRONCHIAL CATHETER - An endobronchial probe includes a deflector having a bore extending therethrough at an angle to its long axis for passage of a tool. The probe includes a location sensor and an ultrasound imager. A push-pull anchoring system comprises a plurality of guides and wires that can extend beyond the guides and retract within the guides. When extended the wires diverge from the long axis sufficiently to engage a bronchus. The probe includes a balloon disposed on the distal segment contralateral to bore that when inflated urges the mouth of the bore into contact with the bronchial wall. | 11-28-2013 |
20130317340 | ELECTROMAGNETIC APPARATUS AND METHOD FOR NERVE LOCALIZATION DURING SPINAL SURGERY - An electromagnetic pedicle awl utilizes a tightly focused time-varying magnetic flux to create a localized electromotive force (EMF) near the tip. The localized EMF creates localized eddy currents in nearby nerves which excite ionic nerve channels, the excitation being detected by an electromyographic recording device. The awl only excites nerves directly in front of and directly to the side of the tip. The awl is comprised of a tapered awl or drill tip in combination with a solid core surrounded by a solenoid. A pulsed electric current source drives the solenoid to create a time-varying magnetic field in the vicinity of the tapered tip. The awl or drill tip may be stationary with respect to the solenoid or it may rotate. The awl in combination with an EMG detector connected to a patient is sensitive to the pedicle hole position with respect to adjacent nerves and reduces false placement failure. | 11-28-2013 |
20130324832 | 2D Dipole Localization Using Absolute Value of MCG Measurements - A magnetic imaging systems produces magnetic magnitude images using magnetic sensors capable of determining only the absolute value of a detected magnetic field and provide no information regarding the positive or negative sign of the detected magnetic image. A 2D dipole location is determines the 2D location of a dipole within a magnetic magnitude image by finding the minimum of the derivative of the absolute value of the magnetic field. This 2D dipole location is then used to determine the 3D position and momentum of a current dipole responsible for the observed magnetic magnitude image. The current dipole is used to generate a magnetic image that incorporate positive and negative sign information. | 12-05-2013 |
20130324833 | NON-RIGID-BODY MORPHING OF VESSEL IMAGE USING INTRAVASCULAR DEVICE SHAPE - A medical method and system include a medical imaging system ( | 12-05-2013 |
20130338480 | INTRAVENOUS APPARATUS AND METHOD - A method and apparatus for inserting and monitoring the placement of a cannula tip within a peripheral vein of a human body where the cannula includes a sensor located at predetermined location and mounted on the cannula for sensing the biological material of the body to guide the insertion of the cannula tip into the vein and alerts to the withdrawal of the cannula tip from the vein in the body. | 12-19-2013 |
20130338481 | DEVICE AND METHOD FOR EXAMINATION AND USE OF AN ELECTRICAL FIELD IN AN OBJECT UNDER EXAMINATION CONTAINING MAGNETIC PARTICLES - Aspects of the present invention relate to a device and method for examining and using an electrical field in a magnetic gradient field, containing magnetic particles in an examination area of an object under examination, including introducing magnetic particles into at least part of the examination area of the object under examination; generating an electrical field at least in part of the examination area; generating a magnetic field having a spatial magnetic field strength profile with a first sub-zone with a low magnetic field strength and a second sub-zone with a higher magnetic field strength in the examination area; varying a spatial position of the two sub-zones in the examination area such that a magnetization of the particles changes locally; detecting signals which depend on the magnetization in the examination area influenced by this variation; evaluating the signals to obtain information about the spatial distribution of the magnetic particles in the examination area; and determining a conductivity in the examination area as a function of a magnetization status of the magnetic particles. | 12-19-2013 |
20140005517 | SENSOR ASSEMBLY FOR USE IN MEDICAL POSITION AND ORIENTATION TRACKING | 01-02-2014 |
20140005518 | Magnetoencephalography System and Method for 3D Localization and Tracking of Electrical Activity in Brain | 01-02-2014 |
20140018662 | POSITION AND ORIENTATION ALGORITHM FOR A SINGLE AXIS SENSOR - A method includes generating a magnetic field in a predefined volume. A reference model is defined, which models the magnetic field at multiple points in the volume using spherical harmonics. The magnetic field is measured by a field detector, which is coupled to an intra-body probe inserted into an organ of a living body located in the volume. A cost function is defined by comparing the measured magnetic field with the reference magnetic field model within the volume. The cost function is minimized by a computation over dipole terms in a derivative over the cost function so as to find a position and orientation that matches the measured magnetic field. The found position and orientation is outputted as the position and orientation of the probe in the organ. | 01-16-2014 |
20140018663 | Magnetic Marker for Surgical Localization - A method and apparatus for preparing tissue of interest in a patient for possible excision by surgery. In one embodiment, the method comprises the steps of: removing a biopsy sample from the tissue of interest; placing a magnetic marker at the biopsy site; performing a pathology analysis of the biopsy sample; and if the pathology analysis indicates that the tissue of interest should be removed, locating the tissue for surgery using a magnetic detection probe. In one embodiment, the marker comprises magnetic nanoparticles in a bioabsorbable matrix. A system for preparing tissue of interest in a patient for possible excision by surgery. In one embodiment, the system includes a magnetic marker and magnetic detection probe system. | 01-16-2014 |
20140024919 | TESTING TUNED CIRCUITS - Methods and systems for determining one or more parameters of a tuned circuit forming part of a wireless energy transmission system in an implanted (or implantable) medical device are described. The method involves energising the tuned circuit then receiving a signal back from it. This signal is then analysed to determine a property of the circuit such as its quality factor (Q) or resonant frequency. Also described herein is a method and system for determining the implantation depth of a component of an implanted medical device. The method involves determining the position of a magnetic element which is mounted in a fixed physical relationship with the component of the medical device. The methods can be performed on an implanted medical device without the need to explant the device. | 01-23-2014 |
20140024920 | Methods And Apparatus For Electromagnetic Navigation Of A Magnetic Stimulation Probe - A system and method is disclosed that can be used to track and navigate an instrument relative to a patient. The system can include an electromagnetic tracking system to track an electromagnetic stimulation probe, such as a transcranial magnetic stimulation probe. The system can, according to various embodiments, provide a tracking device on the probe, track the coil of the probe, provide a field relative to the probe, and determine the position of the patient based upon the field produced by the probe. | 01-23-2014 |
20140031668 | Surgical and Medical Instrument Tracking Using a Depth-Sensing Device - A motion-sensing mechanism is provided that facilitates numerous aspects of the medical industry. In one aspect, the motion-sensing mechanism is used to track instruments and personnel in a field of view relative to a patient such that the instrument or personnel may be displayed on a heads-up display showing a model of the patient's anatomy. In another aspect, the motion-sensing mechanism makes a reference image of a patient, visitor, or staff such that when the subject of the reference images passes another (or the same) motion-sensing mechanism, the identity of the subject is determined or recognized. In still other aspects, the motion-sensing mechanism monitors motion of a portion of a patient's anatomy and compares the same to an expected motion for diagnostic evaluation of pain generators, physical therapy effectiveness, and the like. | 01-30-2014 |
20140039294 | CATHETER WITH ULTRASOUND SENSOR AND METHOD FOR CREATING A VOLUME GRAPHIC BY MEANS OF THE CATHETER - A method is provided for creating a volume graphic via a catheter for introduction into a vessel which has an ultrasound unit, which is embodied to transmit ultrasound, to measure an echo of the transmitted ultrasound, and to create image data for a two-dimensional cross-section of the vessel on the basis of the measured echo. The method involves creating image data of a cross-section with the ultrasound unit at a plurality of different positions on a movement track of the catheter, and, in addition to the image data, creating position data for the current position of the ultrasound unit with a localization device. The method further involves creating the volume graphic from the image data of all cross-sections in which the cross-sections are arranged relative to one another in accordance with the position data. | 02-06-2014 |
20140051972 | DRUG DELIVERY DEVICE AND APPLICATIONS OF SAME - A drug delivery device includes a catheter having first and second ends; a flexible membrane having a rim securely connected to an inner surface of the catheter to define a first volume between the first end and the flexible membrane, and a second volume between the flexible membrane and the second end, such that the second volume is substantially the same as a desired drug volume; and a pressurizable member coupled to the catheter for operably delivering a drug. In use, a desired volume of the drug is preloaded into the second volume of the catheter that in turn is slid into a guidance device, when the guidance device is placed in a target of interest, the pressurizable member applies a pressure into the first volume to exert a force upon the flexible membrane to operably squeeze the second volume, thereby unloading the drug into the target. | 02-20-2014 |
20140073903 | METHOD AND APPARATUS FOR MONITORING AND ABLATING NERVES - Described herein is an apparatus for locally monitoring nerve activity that may be incorporated into a nerve ablation catheter. Such a catheter is equipped with magnetic sensing for both identifying nerves and assessing the success of the ablation. The catheter is also equipped with an ablation instrument for both stimulating and destroying nerve tissue. | 03-13-2014 |
20140081120 | SYSTEM AND METHOD FOR DETECTING TISSUE SURFACE PROPERTIES - A system and method of detecting and assessing a tissue surface property without a separate access port to internal anatomical structures. The system includes a first unit positioned outside the patient's body and a second unit positioned inside the patient's body. The first unit includes a magnetic field source and a force sensor and is positioned outside the patient's body in a position that enables magnetic coupling with the second unit, which is inside the patient's body. The second unit includes a magnetic field source, a processor, a sensor, a telemetry unit, a power source, and an optional actuator or other components. The resulting attractive force between the internal and external magnetic field sources can be perceived by the force sensor of the first unit. By varying the distance between the two units, the attractive force triggers a variable stress on the tissue surrounding the second unit in the direction of the magnetic field source in the first unit. | 03-20-2014 |
20140081121 | TARGETING LANDMARKS OF ORTHOPAEDIC DEVICES - A method for targeting a landmark of an orthopaedic implant comprises implanting the orthopaedic implant in a body. The orthopaedic implant having at least one landmark defining two or more locations for targeting and a first magnetic sensor located at a known distance from at least one of the two or more locations. The method includes comprises identifying one of the locations using a landmark identifier, the landmark identifier having at least one of a second magnetic sensor and a magnetic field generator, installing a transfixion element in the at least one landmark, and identifying a second location using the landmark identifier. | 03-20-2014 |
20140094681 | SYSTEM FOR NAVIGATING SURGICAL INSTRUMENTS ADJACENT TISSUE OF INTEREST - A system for navigating a surgical instrument adjacent tissue of interest is provided and includes a magnetic device and a surgical instrument. The magnetic device is positionable within a body of a patient. The surgical instrument includes a magnetic detection device that is operably disposed thereon to detect the magnetic device. The surgical instrument is configured to remove tissue of interest within the patient. | 04-03-2014 |
20140107464 | Method for Locating a Brain Activity - Method for locating a brain activity, comprising the steps consisting in:
| 04-17-2014 |
20140107465 | LOCATABLE CATHETER - A catheter having a sensor at a distal end thereof, useable to detect and create signals from an electromagnetic field. The sensor is constructed and arranged to leave a lumen of the catheter open such that it may be used to pass instruments therethrough once a target location has been reached. | 04-17-2014 |
20140114173 | INTEGRATION BETWEEN 3D MAPS AND FLUOROSCOPIC IMAGES - A coordinate system registration module, including radiopaque elements arranged in a fixed predetermined pattern and configured, in response to the radiopaque elements generating a fluoroscopic image, to define a position of the module in a fluoroscopic coordinate system of reference. The module further includes one or more connections configured to fixedly connect the module to a magnetic field transmission pad at a predetermined location and orientation with respect to the pad, so as to characterize the position of the registration module in a magnetic coordinate system of reference defined by the magnetic field transmission pad. | 04-24-2014 |
20140121491 | MAGNETOENCEPHALOGRAPHY METER AND NEUROMAGNETISM MEASURING METHOD - Disclosed is a magnetoencephalography meter which includes a plurality of optical pumping magnetometers which are arranged in a helmet shape to cover the head of the subject. Each optical pumping magnetometer has a vapor cell which is filled with alkali metal atoms and is arranged substantially in parallel to the surface of the head of the subject, a laser light emission unit that emits laser light in a direction toward the head of the subject and causes laser light to enter the vapor cell, a reflection unit that reflects laser light passed through the vapor cell in a direction away from the head of the subject which is a direction substantially perpendicular to the surface of the head of the subject, and a polarization change detection unit that receives laser light reflected by the reflection unit and detects change in polarization of laser light. | 05-01-2014 |
20140155730 | APPARATUS, METHOD AND COMPUTER-ACCESSIBLE MEDIUM FOR DIAGNOSING AND SUBTYPING PSYCHIATRIC DISEASES - Exemplary method, system and computer-accessible medium can be provided for diagnosing at least one disease and/or a subtype within a disease. For example, it is possible to determine at least one region of interest, and obtain a plurality of data points associated with each of such region(s) of interest. It is also possible to identify a particular pattern of the data points across each of such region(s) of interest. Further, it is possible, e.g., using a computer arrangement, to determine a likelihood of the disease(s) and/or the subtype by comparing the particular pattern to at least one known pattern. | 06-05-2014 |
20140187905 | COINTEGRATION FILTER FOR A CATHETER NAVIGATION SYSTEM - A system and method for determining a position of a medical device within a body are provided. The system includes an electronic control unit that receives position signals from position sensors of a first type and a second type disposed on the device and applies a filter to each of the position signals to obtain filtered estimated positions for each sensor. The unit computes a spline connecting the position sensors of the first type responsive to the filtered estimated positions for the sensors and estimates a spline position for the sensor of the second type along the spline. The unit generates maps between the spline position and filtered and unfiltered estimated positions for the sensor of the second type and determines actual positions for the sensors of the first type responsive to the filtered estimated position for the sensors and a composite map of the two maps. | 07-03-2014 |
20140187906 | Volumetric Physiological Measuring System and Method - A system and method for measuring volumes and areas using electromagnetic induction techniques. A current is generated and fed into one of two coil assemblies to induce voltage into another coil assembly to provide accurate values for volume or area. | 07-03-2014 |
20140187907 | COMPUTER-IMPLEMENTED SYSTEM AND METHOD FOR DETERMINING THE POSITION OF A REMOTE OBJECT - The invention provides methods and systems for determining the position of a remote object such as an in vivo medical device such as capsule or probe within a medical patient. Integrated computer and computer executable remote permanent magnetic dipole position and orientation detection system monitors remote object movement. User interface displays remote permanent magnetic dipole location and orientation in a 3-dimensional view. Database stores object position movement in association with time. Magnetic sensor planes detect remote objects with permanent magnetic dipole and generate magnetic field information signal. Computer stores and searches location and posture information use a file. | 07-03-2014 |
20140206981 | MAGNETIC FIELD MEASUREMENT APPARATUS - A magnetic field measurement apparatus includes a probe beam irradiating unit that radiates a probe beam. A gas cell is arranged on an optical axis of the probe beam and shows a linear dichroism with respect to the probe beam between a first axis and a second axis. Another gas cell is arranged on the optical axis of the probe beam on the opposite side of the probe beam irradiating unit with respect to the gas cell, and shows a linear dichroism with respect to the probe beam between a third axis and a fourth axis, which are different from the first and the second axes. A measuring unit measures a difference between magnetic fields in the gas cells and on the basis of amounts of change of a plane of polarization of the probe beam that has passed through the gas cell and the gas cell. | 07-24-2014 |
20140213885 | SYSTEM FOR DETERIMING RELATIVE DISTANCE(S) AND/OR ANGEL(S) BETWEEN AT LEAST TWO POINTS - Systems and method utilizing microelectronic devices for determining relative positions such as distances and/or angles between at least two points is described. The points may be locations of parts of the body such as the fingers on a person's hand. A first microelectronic device is adapted to emit magnetic signals and at least one second microelectronic device is adapted to receive the magnetic signals, wherein a controller is adapted to communicate with the first and second microelectronic devices. The second microelectronic device and/or the controller are adapted to determine a distance and angle between the first and the second microelectronic devices based on the strength of the magnetic signals received by the second microelectronic device. | 07-31-2014 |
20140243652 | BODILY SELF-IMAGE AND METHODS FOR PREDICTING PLACEBO RESPONSE OR RESPONSE SHIFT - Methods for determining the likelihood that a subject will be a placebo responder in a clinical study are provided. Also provided are methods for eliminating likely placebo responders from a clinical study a priori, thereby simplifying data analysis and minimizing or eliminating any confound that arises in the analysis as a result of placebo response. Databases and computer systems using the methods are also disclosed herein. Methods for assessing likelihood of a subject experiencing a response shift are also provided. | 08-28-2014 |
20140249400 | DIAGNOSTIC SYSTEM FOR DETECTION OF FLUID CHANGES - A diagnostic system for monitoring changes in a medium is disclosed. The system includes a transmitter configured to generate and transmit a time-varying magnetic field into a medium responsive to a first signal. The system also includes a receiver positioned on an opposite side of the medium from the transmitter and configured to generate a second signal responsive to a received magnetic field at the receiver. The system also includes a processing unit configured to determine a phase shift between the transmitted magnetic field and the received magnetic field for a plurality of frequencies of the transmitted time-varying magnetic field. | 09-04-2014 |
20140257080 | SYSTEM FOR ULTRASOUND IMAGE GUIDED PROCEDURE - A system and method for ultrasound image guided surgical procedures such as needling or catheterisation, in which an ultrasound transducer is provided with a magnetometric detector for detecting the magnetic field emanating from a magnetised tissue-penetrating medical tool such as a needle or catheter. The detection of the magnetic field allows the position of the tool to be tracked magnetically and the position can be displayed on the ultrasound image. The position of the tool is determined from the magnetic field measurements by use of a look-up table of magnetic field values for the field emanating from the tissue-penetrating medical tool. | 09-11-2014 |
20140257081 | Integrated metal detector-portable medical device - An integrated metal detector-portable medical device adapted to identify metals in a human body, where the metal detector is in connection with the portable medical device. The metal detector includes: at least one transmitting means adapted to generate a second magnetic field so as to induce a magnetic field generated by a metal; at least one sensor adapted to detect a magnetic field generated by the metals to be detected; and at least one signaling means adapted, upon detection of a magnetic field, to alert the identification of metals, if the intensity of a magnetic field is above a predetermined value. | 09-11-2014 |
20140275955 | SURGICAL TOOL SYSTEMS AND METHOD - Embodiments of the invention provide a guided surgical tool assembly with a guide tube including a sensor, a surgical instrument including a detectable feature moveable within the guide tube, and the sensor capable of detecting the detectable feature when the surgical instrument is inserted in the guide tube. Some embodiments include a sensor pad, a guide stop coupled to the surgical instrument, a plunger mechanism including a compressible spring mechanism coupled to the guide tube, and a wiper capable of being sensed by the sensor pad. Some embodiments include a guided surgical tool assembly system comprising a tool sensor system including a processor and at least one data input/output interface. Some embodiments include a medical robot system with a guided surgical tool assembly and including a robot coupled to an effectuator element configured for controlled movement and positioning along one or more of an x-axis, a y-axis, and a z-axis. | 09-18-2014 |
20140275956 | SURGICAL POSITIONING CIRCUIT - A surgical locator circuit identifies a surgical target such as a kidney stone by disposing an emitter such as a magnetic source behind or adjacent the surgical target, and employing the circuit to identify an axis to the emitter, thus defining an axis or path to the surgical target. An array of sensors arranged in an equidistant, coplanar arrangement each senses a signal indicative of a distance to the emitter. A magneto resistor sensor generates a variable resistance is responsive to the distance to a magnetic coil emitting a magnetic field. An equal signal from each of the coplanar sensors indicates positioning on an axis passing through a point central to the sensors and orthogonal to the plane. A fixed element and signal conditioner augments and normalizes the signal received from each of the sensors to accommodate subtle differences in magneto resistive response among the plurality of sensors. | 09-18-2014 |
20140275957 | Device, system, and method for intracardiac diagnosis or therapy with localization - A medical system for locating a catheter distal tip within a body using a plurality electrical position sensors and a magnetic position sensor in conjunction with an acceleration sensor or rotational encoder. The system locates the catheter by using signals from the acceleration sensor or rotational encoder and magnetic sensors to compensate for positioning errors associated with electric positioning sensors. | 09-18-2014 |
20140275958 | METHODS AND SYSTEMS FOR VERIFYING AND MONITORING ENDOTRACHEAL TUBE POSITION DURING INTUBATION - An endotracheal tube positioning device includes a first Hall sensor, a second Hall sensor spaced a predetermined distance from the first Hall sensor, a converter, and an integrated circuit board electrically connecting the first Hall sensor and the second Hall sensor to the converter, wherein a position range is established for the device based on a symmetry of voltage readings provided from the first and second Hall sensors to the converter. An endotracheal tube positioning system includes an endotracheal tube having a magnet provided toward a distal tip end, an endotracheal tube positioning device having a first Hall sensor and a second Hall sensor, the positioning device configured to adhere to a skin surface, and a monitor for receiving data based on voltage values provided by the first and second Hall sensors, the data indicating a position of the magnet relative to the adhered position of the positioning device. | 09-18-2014 |
20140296694 | METHOD AND SYSTEM FOR ULTRASOUND NEEDLE GUIDANCE - A method and medical system for providing needle guidance. The method and system includes acquiring ultrasound data while manipulating a needle and tracking the needle tip while manipulating the needle. The method and system includes displaying a first live image including at least a portion of the needle in a first viewing pane and displaying a second live image including the needle tip in a second viewing pane at the same time as the first live image. The second live image includes a portion of the first live image at a greater level of zoom than the first live image. | 10-02-2014 |
20140316244 | OBJECT INFORMATION ACQUIRING APPARATUS AND CONTROL METHOD THEREFOR - An object information acquiring apparatus is used, which includes: a receiver configured to receive a photoacoustic wave generated from an object irradiated with light and output a time-series electric signal; and a processor configured to acquire characteristic information relating to an inside of the object by using the time-series electric signal, wherein the light is emitted at a plurality of timings, the receiver receives the photoacoustic wave at the plurality of timings, and the processor determines a projection position coordinate on which the time-series electric signal is projected on the basis of an amount of displacement of the inside of the object among the plurality of timings, for each of a plurality of time-series electric signals corresponding to the plurality of timings, and acquires the characteristic information. | 10-23-2014 |
20140323847 | NONINVASIVE METHOD AND SYSTEM FOR MEASURING PULMONARY VENTILATION - A pulmonary ventilation system comprising means for storing an empirical relationship that is designed and adapted to determine at least one pulmonary ventilation parameter as a function of a plurality of measured anatomical distances and volume-motion coefficients, means for acquiring the anatomical distances, means for determining the plurality of motion coefficients, and processing means for determining the ventilation parameter based on the acquired anatomical distances and determined plurality of volume-motion coefficients. In one embodiment, the system further includes means for acquiring base-line ventilation characteristics and means for correlating the base-line ventilation characteristics to the ventilation parameter determined with the empirical relationship. | 10-30-2014 |
20140343395 | SYSTEM AND METHOD FOR PROVIDING MAGNETIC BASED NAVIGATION SYSTEM IN DENTAL IMPLANT SURGERY - A system and method for providing magnetic based navigation in dental implant surgery is disclosed. According to one embodiment, a surgical navigation system comprises a custom piece that is made to fit in a patient's anatomy and comprises a first magnetic component. The surgical navigation system further comprises an instrument assembly comprising a drill bit and a second magnetic component. A processing unit receives and displays a first position and orientation data from the first magnetic component with respect to a second position and orientation data from the second magnetic component to track the movement of the first magnetic component with respect to the second magnetic component. | 11-20-2014 |
20140343396 | Use of Machine Learning for Classification of Magneto Cardiograms - The use of machine learning for pattern recognition in magnetocardiography (MCG) that measures magnetic fields emitted by the electrophysiological activity of the heart is disclosed herein. Direct kernel methods are used to separate abnormal MCG heart patterns from normal ones. For unsupervised learning, Direct Kernel based Self-Organizing Maps are introduced. For supervised learning Direct Kernel Partial Least Squares and (Direct) Kernel Ridge Regression are used. These results are then compared with classical Support Vector Machines and Kernel Partial Least Squares. The hyper-parameters for these methods are tuned on a validation subset of the training data before testing. Also investigated is the most effective pre-processing, using local, vertical, horizontal and two-dimensional (global) Mahanalobis scaling, wavelet transforms, and variable selection by filtering. | 11-20-2014 |
20140343397 | BIOMAGNETIC RESONANCE DEVICE AND MEASURING METHOD THEREFOR - Provided are an ultra-low-field nuclear magnetic resonance device and an ultra-low-field nuclear magnetic resonance measuring method. The method includes applying a first measurement bias magnetic field corresponding to an excitation frequency of a coherent biomagnetic field generated in association with the electrophysiological activity of human body organs, applying a second measurement bias magnetic field having the same direction as the first measurement bias magnetic field and having a different magnitude than the first measurement bias magnetic field, and measuring a magnetic resonance signal generated in the human body by using magnetic field measuring means. | 11-20-2014 |
20140343398 | Bioimpedance-Assisted Placement of a Medical Device - A system and method for guiding a catheter or other medical device to a desired target destination within the vasculature of a patient via bioimpedance measurements is disclosed. The target destination in one embodiment includes placement of the catheter such that a distal tip thereof is disposed proximate the heart, e.g., the junction of the right atrium and superior vena cava. In one embodiment the method for guiding the catheter comprises introducing the catheter into a vessel of the patient, the catheter defining a lumen through which fluids can be infused into the vasculature of the patient. The catheter is advanced toward a target destination within the vasculature. A first impedance value based on intravascular detection of at least one electrical property related to a first tissue surface of the vessel is calculated to enable determination of the proximity of a distal end of the catheter to the target destination. | 11-20-2014 |
20140357977 | Catheter Placement Detection System and Method for Surgical Procedures - In order to increase the accuracy and speed of catheter reconstruction in surgical procedures such as an HDR prostate implant procedure, an automatic tracking system is provided preferably using an electromagnetic tracking device. The system uses a transmitter with a sensor used for catheter position. Due to substantial interference in the electromagnetic field from the surgical table, implant stepper/stabilizer etc, a calibration algorithm using a scattered data interpolation scheme is implemented to correct tracking location errors. The invention includes methods and systems used to carry out the methods. | 12-04-2014 |
20140364719 | Method and apparatus for localizing an ultrasound catheter - An imaging system is provided with an ultrasound catheter and a controller coupled to the ultrasound catheter. The catheter includes a localizer sensor configured to generate positional information for the ultrasound catheter, and an imaging ultrasound sensor having a restricted field of view. The controller co-registers images from the imaging ultrasound sensor with positional information from the localizer sensor. | 12-11-2014 |
20140378815 | MAGNETOENCEPHALOGRAPHY SOURCE IMAGING - Techniques, devices and systems are disclosed for magnetoencephalography (MEG) source imaging. In one aspect, a method includes selecting signal data associated with one or more frequency bands from a spectrum of the signal data in the frequency domain, in which the signal data represents magnetic signals emitted by a brain of a subject and detected by a plurality of sensors outside the brain, defining locations of sources within the brain that generate the magnetic signals, in which the number of locations of the sources is selected to be greater than the number of sensors, and generating a source value of signal power based on the selected signal data corresponding to a respective location of the locations at the one or more frequencies. | 12-25-2014 |
20140378816 | INFORMATION PROVIDING METHOD AND MEDICAL DIAGNOSIS APPARATUS FOR PROVIDING INFORMATION - A method of providing medical imaging guidance information for use in operating a medical imaging apparatus detects motion of an examinee placed on a support table positioned for imaging by a medical imaging device. The method compares a level of the detected motion with a predetermined threshold value and adaptively selects and provides guidance information enabling reducing impairment of image quality due to examinee physical motion, in response to the comparison. | 12-25-2014 |
20150011860 | ADJUSTABLE IMPLANT AND METHOD OF USE - A system includes an adjustable implant configured for implantation internally within a subject and includes a permanent magnet configured for rotation about an axis of rotation, the permanent magnet operatively coupled to a drive transmission configured to alter a dimension of the adjustable implant. The system includes an external adjustment device configured for placement on or adjacent to the skin of the subject having at least one magnet configured for rotation, the external adjustment device further comprising a motor configured to rotate the at least one magnet and an encoder. Rotation of the at least one magnet of the external adjustment device effectuates rotational movement of the permanent magnet of the adjustable implant and alters the dimension of the adjustable implant. Drive control circuitry is configured to receive an input signal from the encoder. | 01-08-2015 |
20150011861 | MULTIMODAL FIDUCIAL MARKER AND MARKER ARRANGEMENT - The present invention relates to a multimodal fiducial marker ( | 01-08-2015 |
20150011862 | METHOD AND DEVICE FOR EVALUATION OF MYOCARDIAL DAMAGES BASED ON THE CURRENT DENSITY VARIATIONS - Invention is related to cardiology and intended for diagnosis of ischemic myocardial injuries. Magnetocardiographic examination is executed, current density vectors maps are reconstructed during ST-T interval and 4 sub-intervals of QRS complex, quantitative diagnostic indicators are calculated. Characterized in that, for said time intervals total length of all vectors (total current), autocorrelation coefficient of the instant map and its correlation with map onto the T wave peak are derived, several quantitative indicators for these curves are calculated (area under the curve, time intervals, their ratio, etc.) and ranges of their values are divided onto 3 intervals. As a result, absence/presence of ventricles injuries is diagnosed according to the rule—injury is absent (presence minor, significant), if certain quantitative indicator is ranged in one of 3 said intervals or if score of points for separate quantitative indicators is less than or equal to 7 (8-16, 17 and more). | 01-08-2015 |
20150038826 | MAGNETOCARDIOGRAPHY ARRANGEMENT AND ERGOMETER FOR SAME - A magnetocardiography arrangement for producing stress magnetocardiograms that comprises a magnetocardiograph ( | 02-05-2015 |
20150045647 | UNMAPPED REGION VISUALIZATION - A method, including capturing, from an imaging system, a three-dimensional (3D) image of a body cavity, and using the captured 3D image to construct a simulated surface of the body cavity. A probe having a location sensor is inserted into the body cavity, and in response to multiple location measurements received from the location sensor, multiple positions are mapped within respective regions of the body cavity so as to generate respective mapped regions of the simulated surface. Based on the simulated surface and the respective mapped regions, one or more unmapped regions of the simulated surface are delineated, and the simulated surface of the body cavity is configured to indicate the delineated unmapped regions. | 02-12-2015 |
20150045648 | INTEGRATED SYSTEM FOR FOCUSED TREATMENT AND METHODS THEREOF - An integrated system for facilitating local treatment in an organ and capable of universally interfacing with other devices and systems is provided. The integrated system comprises an imaging system interface module configured to functionally associate with an imaging system capable of presenting to a user, through a user-interface device, parameters indicating a mode of operation of the imaging system. The imaging system interface module is configured to receive at least one of the parameters, to interpret such parameter and to allow the integrated system to assume a mode of operation according the parameter. The integrated system further comprises a treatment tool interface module, configured to receive and detect a treatment event signal from a portable treatment tool. The treatment event signal indicates a treatment event, thereby allowing establishing a time of the treatment event and thereby establishing a locality of a treatment provided to the organ by the portable treatment tool. | 02-12-2015 |
20150045649 | BALLOON CATHETER AND A SYSTEM AND A METHOD FOR DETERMINING THE DISTANCE OF A SITE IN A HUMAN OR ANIMAL BODY FROM A DATUM LOCATION - In a system ( | 02-12-2015 |
20150045650 | BLOOD FLOW MEASUREMENT SYSTEM BASED ON INDUCTIVE SENSING - An inductive sensing system is adapted for noninvasive measurement of blood flow through a blood vessel. A resonant sensor is disposed in proximity to the blood vessel, and includes a coil resonator that generates a magnetic field within a sensing area that includes the blood vessel. The resonator changes resonance state based on changes in a flow of blood hemoglobin through the sensing area. The IDC unit establishes an IDC control loop, including the resonator as a loop filter, that provides feedback resonance control of the resonator to maintain a resonant frequency state (steady state oscillation) representative of blood hemoglobin flow through the sensing area. A feedback resonance control signal provides sensor data corresponding to the resonant frequency state as representative of blood flow through the sensing area. In one embodiment, the IDC control loop is implemented as a negative impedance control loop, controlling negative impedance to counterbalance resonant impedance. | 02-12-2015 |
20150065851 | DETERMINING NON-CONTACT STATE FOR A CATHETER - A method, including inserting a probe into a cavity in a subject's body and receiving, from a force sensor in the probe, first readings indicative of a first change in measured contact forces between the probe and the cavity by less than a predetermined limit over at least a predetermined interval of time. The method continues by receiving second readings from the force sensor when the second readings have changed by more than a predetermined force threshold or location coordinates of the probe have changed by at least a predetermined location change threshold. The method continues by receiving third readings indicative of a second change in the measured contact forces between the probe and the cavity by less than the predetermined limit over at least the predetermined interval of time. The method concludes by calibrating a zero-force point for the force sensor according to the third readings. | 03-05-2015 |
20150080703 | ACCELERATED EVALUATION OF TREATMENTS TO PREVENT CLINICAL ONSET OF ALZHEIMER'S DISEASE - Systems and methods for evaluating prospective treatments for progressive brain disorders like Alzheimer's disease and the progressive effects of aging involve the use of an imaging device communicatively coupled to a computing device. The imaging device may takes a plurality of brain imaging measurements from each of a plurality of human subjects who are divided into a treated group and an untreated group based on various subject data including whether the subjects carry certain alleles of genes known to increase the risk of developing the brain disorder at issue. The computing device receives the brain imaging measurements from the imaging device and applies an advanced processing method that permits enhanced computational efficiency when calculating rates of change for the two groups and determining whether any calculated difference between the rates is statistically significant. | 03-19-2015 |
20150099962 | Methods and Systems To Identify Phase-Locked High-Frequency Oscillations In The Brain - Method and device for the automatic identification of phase-locked high-frequency oscillations (PLHFO) to localize epileptogenic brain for neurosurgical intervention, including filtering brain signals into low frequency and high frequency oscillation (HFO) data streams. Applying ICA to the HFO data stream, transforming the data streams to produce an HFO instantaneous amplitude (HFOIA) and a low-frequency instantaneous phase (LFIP) data stream. Transforming the normalized HFOIA to produce an instantaneous phase of the normalized HFOIA. Determining a continuous or discrete PLHFO calculation that measures cross frequency coupling between the instantaneous phase of the low frequency data stream, and the instantaneous amplitude of the HFO data stream based at least in part on LFIP, raw or normalized HFOIA, and may include the instantaneous phase of normalized or raw HFOIA. Determining that at least a portion of the electrical signals from the brain display PLHFO if the PLHFO calculation is above a statistical threshold. | 04-09-2015 |
20150119686 | SERIALLY CONNECTED AUTONOMOUS LOCATION PADS - An apparatus, including a bus having electrical power and data lines, and a plurality of location pads, which are positionable at different, respective locations with respect to a body cavity in which the object is located, and which are connected to the bus in series so as to receive electrical power and exchange data signals over the bus. Each location pad includes multiple radiator coils and driving circuitry configured to select, responsively to the data signals, different respective driving frequencies for the coils and to generate, using the electrical power from the bus, driving signals to drive the coils to produce magnetic fields at the respective driving frequencies. The apparatus also includes a console, which is configured to receive and process sensor signals from a magnetic sensor fixed to the object, in response to the magnetic fields in the body cavity, in order to compute position coordinates of the object. | 04-30-2015 |
20150119687 | Implant Magnet Distance Determination - A method is described for estimating skin thickness over an implanted magnet. A plane is defined that is perpendicular to the skin of a patient over an implanted magnet and characterized by x- and y-axis coordinates. The magnetic field strength of the implanted magnet is measured using an array of magnetic sensors on the skin of the patient. From the measured magnetic field strength, at least one x-axis coordinate in the plane is determined for at least one y-axis zero position on the array where a y-axis component of the measured magnetic field strength is zero. From that, a y-axis coordinate of the at least one y-axis zero is calculated as a function of the at least one x-axis coordinate, such that the y-axis coordinate represents thickness of the skin over the implanted magnet. | 04-30-2015 |
20150141798 | TRACKING OF CATHETER FROM INSERTION POINT TO HEART USING IMPEDANCE MEASUREMENTS - A subject-specific skeletal model of a body is created, and an intended path of a catheter within the body is defined in the model. While the probe is inserted into the body electrical currents are passed through the body between at least one electrode in the probe and through respective electroconductive location pads that are disposed at a plurality of locations on the body surface along the intended path. Based on respective characteristics of the currents passing through the plurality of locations, position coordinates of the probe are iteratively determined. The actual path of the probe is tracked with reference to in the model using the iteratively determined position coordinates to determine whether the actual path corresponds to the intended path. | 05-21-2015 |
20150289939 | MAGNETIC DEVICE FOR USE IN AN MPI APPARATUS - The present invention relates to a magnetic device ( | 10-15-2015 |
20150297113 | Devices and Systems for Navigation and Positioning a Central Venous Catheter Within a Patient - Devices and systems for navigation and positioning a central venous catheter within a patient. In an exemplary embodiment of a system of the present disclosure, the system comprises a first pole and a second pole, the first pole and the second pole configured to generate an electric field within a mammalian body sufficient to obtain a plurality of field measurements therein, and an elongated body configured for at least partial insertion into a blood vessel of the mammalian body and advancement through a vasculature, said advancement dependent upon the plurality of field measurements indicative of one or more locations of a portion of the elongated body within the vasculature. In at least one embodiment, the elongated body is configured as a stylet. | 10-22-2015 |
20150297190 | DEVICE AND METHOD OF MEDICAL IMAGING - Device and method of imaging a limb, such as an arm or leg, by scanning using both an optical camera and an ultrasound sensor, where the devices are electronically or mechanically linked such they both scan a portion of the limb, and the images displayed from the two sensors are visually aligned. Scanning may be in one or both of the longitudinal plane and the axis of the limb, such that most of the surface of the limb may be imaged. Stitched images from the sensors are visually aligned relative to the anatomical features of the limb. The limb is placed in a receptacle, typically with an open top, containing a transparent fluid through which both sensors operate. Either the sensors move (scan) relative to the fixed receptacle or the receptacle rotates, such as on a turntable. | 10-22-2015 |
20150305685 | NEUROPSYCHOLOGICAL SPATIOTEMPORAL PATTERN RECOGNITION - Systems and methods for identifying and analyzing neuropsychological flow patterns, include creating a knowledge base of neuropsychological flow patterns. The knowledge base is formed by obtaining signals from multiple research groups for particular behavioral processes, localizing sources of activity participating in the particular behavioral processes, identifying sets of patterns of brain activity for the behavioral processes and neuropsychologically analyzing the localized sources and the identified patterns for each of the research groups. The neuropsychological analysis includes identifying all possible pathways for the identified sets of patterns, ranking the possible pathways based on likelihood for the particular behavioral process and reducing the number of ranked possible pathways based on additional constraints. A system for comparison of obtained signals from an individual to the created knowledge base is provided. These obtained signals are then used to further update the existing knowledge base. | 10-29-2015 |
20150320591 | Systems and Methods for In-Ear Fluid Vestibular and/or Cranial Nerve Caloric Stimulation - An in-ear stimulation system for administering caloric stimulation to the ear canal of a subject includes (a) a conduit configured to deliver a fluid to calorically stimulate an ear canal of a subject; and (b) a fluid control unit comprising a controller configured to control a flow of the fluid to the conduit and/or to control a caloric profile of the fluid such that a temperature of the fluid changes through time when the fluid is being delivered to the ear canal via the conduit. | 11-12-2015 |
20150324544 | PAIN SURVEYING AND VISUALIZATION IN A HUMAN BODILY REGION - Techniques for pain surveying and visualization in a bodily region including a 3-dimensional rendering of a bodily region or an anatomical grid for presentation to a subject suffering from pain for collection of pain intensity and pain location information. A device is provided to the patients for display of the rendering of the bodily region or anatomical grid for collection of pain intensity and location information. A pain analysis module may then create an aggregate pain data set for visual data analyses, user reports, or data export focused on one or multiple region(s), as well as the entire body. The pain data sets may include patient data from a single patient or aggregated data from multiple patients. | 11-12-2015 |
20150342461 | OPTICAL BIOMETRIC DEVICE AND POSITION MEASURING DEVICE USED THEREIN - The optical biometric device according to the invention is provided with: a measurement data display control unit for displaying a number of pieces of measurement data on the three-dimensional head surface image or three-dimensional brain surface image displayed on the display unit, and is formed of: a storage unit for storing channel information that indicates combinations of light sending probes and light receiving probes for acquiring information about the amounts of the received light in measurement portions; and a channel information display control unit for displaying a number of light sending probe points at which light sending probes have been placed and a number of light receiving probe points at which a number of light receiving probes have been placed according to the three-dimensional coordinates displayed on the display unit, and at the same time, for displaying line segments that indicate combinations of light sending probes and light receiving probes for connecting light sending probe points and light receiving probe points based on said channel information. | 12-03-2015 |
20150359454 | SURGICAL TOOL AND METHOD FOR IDENTIFYING AN INCISION SITE - A method of identifying a site for a perineal incision on a patient includes inserting a distal end portion of an intra-urethral probe into a urethra of the patient, and guiding the distal end portion of the intra-urethral probe along a length of the urethra no farther than a junction in the urethra. The method additionally includes transmitting a signal from the distal end portion of the intra-urethral probe through the urethra, and sensing the signal at a location on a perineal skin surface, where the location correlates with the junction in the urethra. | 12-17-2015 |
20150359991 | SYSTEM FOR IMAGE GUIDED PROCEDURE - A system for supplementing ultrasound image needle guidance with magnetically detected needle position and tissue impedance measurements. The system comprises an ultrasound imaging system with the ultrasound probe being provided with a magnetometric detector for detecting the position of a magnetised needle, cannula, catheter or other tissue-penetrating tool. The tissue penetrating tool is provided with an electrode at or near its tip which is connected to a power source and impedance meter, the impedance measuring circuit being completed by use of a skin electrode or second electrode on the tool so that the electrical impedance of the patient's tissue can be measured. The measured impedance values and the magnetically detected position of the tool are superimposed on the ultrasound image so that the clinician can easily confirm the needle position in relation to the imaged anatomy. The impedance values may be colour-coded or charted alongside or superimposed on the position or track of the needle as displayed on the ultrasound image. | 12-17-2015 |
20150366489 | DEVICE AND METHOD FOR DETERMINING RELATIVE DISPLACEMENTS OF BODY PARTS OR BODY AREAS - Devices and methods for determining relative displacements of body parts or body areas, with a transmitter and a sensor associated with the transmitter, wherein at least one shadowing device, which is displaceable relative to the sensor and/or the transmitter and is fixed to at least one body part or body area, is arranged between the transmitter and the sensor. | 12-24-2015 |
20150374250 | MAGNETIC MEASUREMENT APPARATUS - High-accuracy magnetic measurement is performed by efficiently using nitrogen-vacancy pairs in all orientations. A magnetic measurement apparatus includes a diamond crystal and an image sensor. The diamond crystal has nitrogen-vacancy pairs. The image sensor detects the intensities of fluorescence generated by an exciting light applied to the diamond crystal by using a plurality of pixels. The nitrogen-vacancy pairs of the diamond crystal are made to one-to-one correspond to the pixels. The fluorescence generated by one nitrogen-vacancy pair is received by one pixel made to correspond to the nitrogen-vacancy pair. | 12-31-2015 |
20150374257 | Measurement method for detecting vital parameters in a human or animal body, and measuring apparatus - A measurement method ( | 12-31-2015 |
20150374280 | BELT FOR GUIDING THE ACTIVATION OF THE CORE MUSCLES - The invention is directed to a system and method using the system for guiding a person in correct activation of her or his core muscles for a sport or other exercise session The system is based on an elastic belt to be closely adhered to the lower abdomen of the human being and adapted to follow an inward movement of the lower abdominal wall without movements of the spine and pelvis effectively activating the core muscles responsible for low back control, sensor means provided at the belt for capturing extensions and contractions of the belt following said inward movement of the lower abdominal wall, means for evaluating the extensions and contractions of the belt following said lower abdominal wall region and for outputting evaluation data, means for comparing the evaluation data attained thereby to data representing correct activation of the core muscles, and feedback means provided with the belt for providing feedback to said result of said comparison to said person. In accordance with the invention the sensor means comprise fused together by a data fusion algorithm a 3D accelerometer sensor for capturing user's pelvis movements, a 3D gyroscope sensor for capturing user's pelvis movements, and/or a 3D Magnetometer sensor for capturing user's pelvis movements. The method evaluates and monitors based on the system said person's exercises by calculating the optimal position of the person in correct activation of her or his core muscles out of two positions taken up by the person in a calibration process. | 12-31-2015 |
20150374292 | DETECTION AND ANALYSIS OF SPATIALLY VARYING FLUID LEVELS USING MAGNETIC SIGNALS - A device for detecting spatial differences in fluid level changes in a tissue of a patient may include a support structure for securing the device to a body part of the patient, a processing element operably connected to the support structure, a wireless networking interface operably connected to the support structure and in communication with the processing element and an external computing device via a network, a first transmission module operably connected to the support structure and in communication with the processing element, a second transmission module and a third transmission module operably connected to the support structure and in communication with the processing element. When activated, the first transmission module transmits a first time varying magnetic field through the tissue of the patient. The second and third transmission modules, which are spatially separated from one another, receive first and second versions, respectively, of the first time varying magnetic field. | 12-31-2015 |
20160022196 | NONSURGICAL DETERMINATION OF ORGAN TRANSPLANT CONDITION - A Superconducting Quantum Interference Device (SQUID) magnetic sensor system and method can image organic transplant condition, such as status, acceptance, or rejection, in-vivo. This represents a major advane in transplant imaging technology with a new market for biomagnetic sensor devices. In-vivo transplant condition determination provides a greater range of imaging methodologies over existing methods in sensitivity, and enables early detection of rejection with the ability to determine the need for anti-rejection drugs. | 01-28-2016 |
20160022207 | MAGNETOENCEPHALOGRAPHY BIOMARKERS OF GABA-B AGONIST DRUG ACTIVITY IN AUTISM SPECTRUM DISORDERS - Compositions and methods for diagnosing neurological disorders such as autism spectrum disorders are disclosed. | 01-28-2016 |
20160022485 | MAGNETIC OPERATING MICROSCOPES AND METHODS OF TREATMENT AND DIAGNOSIS USING THE SAME - In certain aspects, the present invention is directed to a device selected from (a) an operating microscope with an attached or attachable magnet and (b) a magnet that is configured for attachment to an operating microscope. In either case, the magnet is configured to allow a patient's tissue to be viewed through the operating microscope while at the same time permitting the creation of a magnetic field of sufficient magnitude and direction to move a magnetic therapeutic and/or diagnostic agent lying within the tissue to a preferred location in the tissue. | 01-28-2016 |
20160045128 | METHODS TO MONITOR CONSCIOUSNESS - Provided are methods to measure and or monitor consciousness in a subject, including analyzing brain activity with weighted symbolic mutual information (wSMI) and/or Kolgomorov symbolic complexity (KSC). In addition, methods and apparatus to administer a stimulus and/or a medicament to a subject according to their consciousness level which has been determined using the method described herein are also provided. | 02-18-2016 |
20160051161 | METHOD FOR LOCATING A BRAIN ACTIVITY ASSOCIATED WITH A TASK - The invention relates to a method for estimating the brain activity, from physiological signals, in particular magnetoencephalographic or electroencephalographic surfaces, which has, in certain predetermined areas of the cortex, considered as areas of interest, an improved accuracy with respect to other areas of the gridding. It enables a more accurate estimation to be obtained in the areas of the brain intended to be subjected to a particular treatment, for example to accommodate cortical electrodes. | 02-25-2016 |
20160051164 | PROBE FOR DETERMINING MAGNETIC MARKER LOCATIONS - A probe including a first sensor having a first magnetometer and a first accelerometer and a second sensor having a second magnetometer and a second accelerometer is configured for determining the distance and direction to a marker. The marker may be magnetic and may be surgically inserted into a patient's body to mark a specific location. The probe may be used to locate the marker, thus identifying the location. The probe may include a microprocessor that receives an output from the first sensor and an output from the second sensor and determines the distance and direction to the marker. | 02-25-2016 |
20160051165 | SYSTEM AND METHOD FOR BIOLOGICAL APPLICATIONS USING PRE-DETERMINED SIZED NANOPARTICLES - The invention features an apparatus for producing a fluid stream having plurality of nanoparticles in the fluid stream. The apparatus includes a source configured to provide a fluid stream having a first randomly sized distribution of a plurality of nanoparticles; a flow control zone configured to receive the fluid stream from the source and to control the fluid stream to produce a controlled fluid stream having a selected flow rate; a separation zone configured to receive and to separate the selectively controlled fluid stream into at least one separated fluid stream having a non-randomly sized distribution of nanoparticles; and a collection zone capable of receiving the separated fluid stream according to at least one non-random sized distribution of nanoparticles to produce at least one collected stream. The apparatus is configured for a continuous flow of the fluid stream. A size of a nanoparticle can be related to an intrinsic core diameter, a hydrodynamic diameter, and a combination of intrinsic core diameter and hydrodynamic diameter measurements. The nanoparticles can include non-magnetic nanoparticles, partially magnetic nanoparticles, magnetic nanoparticles, superparamagnetic nanoparticles, and a combination of at least two different nanoparticle types. The invention also features methods for producing said fluid streams. The invention further features apparatus and methods for cancer confirmation and targeted therapeutic drug development. | 02-25-2016 |
20160058322 | SYSTEMS AND METHODS FOR LOCATING AND/OR CHARACTERIZING INTRAGASTRIC DEVICES - Devices and methods for treating obesity are provided. More particularly, intragastric devices and methods of fabricating, deploying, inflating, locating, tracking, monitoring, deflating, and retrieving the same are provided. | 03-03-2016 |
20160067449 | Apparatus and Methods Relating to Intravascular Positioning of Distal End of Catheter - Devices and systems for navigation and positioning a central venous catheter within a patient. In an exemplary embodiment of a system of the present disclosure, the system comprises a first pole and a second pole, the first pole and the second pole configured to generate an electric field within a mammalian body sufficient to obtain a plurality of field measurements therein, and an elongated body configured for at least partial insertion into a blood vessel of the mammalian body and advancement through a vasculature, said advancement dependent upon the plurality of field measurements indicative of one or more locations of a portion of the elongated body within the vasculature. In at least one embodiment, the elongated body is configured as a stylet. In another embodiment, techniques for identifying and locating obstructions in the vessel in which a device is disposed are disclosed. | 03-10-2016 |
20160073916 | Method For Locating A Brain Activity, In Particular For Direct Neural Control - Method for locating a brain activity, including the following steps: a) applying to a subject a first series of sensory stimuli and acquiring, by a group of sensors, respective first series of signals representative of a brain activity associated with a first task effected or imagined by the subject in response to the sensory stimuli of the first series, each sensor being sensitive to the activity of a respective region of the brain of the subject; b) applying to the subject a second series of sensory stimuli and acquiring, by the group of sensors, respective second series of signals representative of a brain activity associated with a second task, different from the first task, effected or imagined by the subject in response to the sensory stimuli of the second series; and c) constructing, for each sensor, a multidimensional variable representative of the corresponding first and second series of signals, and determining a coefficient of correlation between the multidimensional variable and an observation vector representative of the first and second sensory stimuli. | 03-17-2016 |
20160073934 | METHOD AND APPARATUS FOR MONITORING DYNAMIC STATUS OF A BODY - Apparatus is disclosed for monitoring, measuring and/or estimating dynamic status of a body part of a vertebral mammal. The apparatus includes at least one kinematics sensor for measuring and for providing data for comparison to a first frame of reference data indicative of the dynamic status of the body part. The apparatus also includes a memory device adapted for storing the sensor data and the first frame of reference data and a processor adapted for processing the sensor data to evaluate a dynamic signature associated with the body part that correlates to the first frame of reference data. A method for monitoring, measuring and/or estimating dynamic status of a body part of a vertebral mammal is also disclosed. | 03-17-2016 |
20160113723 | ENLARGEMENT OF TRACKING VOLUME BY MOVEMENT OF IMAGING BED - A medical system, includes an imaging apparatus, which includes an array of detectors, which define an imaging volume and form images of a region within a body of a patient that is positioned in the imaging volume. A movable bed transports the body of the patient through the imaging volume. An invasive probe is inserted into a lumen within the body of the patient. A tracking apparatus includes a field transducer positioned in the imaging apparatus and defining a tracking volume within the imaging apparatus, and generates an indication of a location of the invasive probe within the tracking volume responsively to an interaction between the field transducer and the invasive probe. A controller controls the movable bed in response to the location of the invasive probe indicated by the tracking apparatus. | 04-28-2016 |
20160120436 | Psychological Evaluation and Methods of Use - The psychological impact of entertainment material, visual objects, brands and advertising, commercial communication, the response to an individual presenting a message, or to an individual seeking public office can be assessed using methods employing measurements of SSVEP or SSVER phase increase and gaze tracking of subjects in a variety of ways. Various psychological states may be analyzed in order to accurately predict success and to enable early modification in development stages of products or communication. | 05-05-2016 |
20160128607 | OPERATING APPARATUS FOR MEDICAL APPARATUS - There is provided an operating apparatus for a medical apparatus, the operating apparatus including a ring-shaped magnet magnetically polarized in a circumferential direction or a radial direction and configured to rotate along with rotating operation by a user, and a sensor unit configured to detect a magnetic field and to output a signal depending on the detected magnetic field. The sensor unit outputs two-phase signals having different phases. | 05-12-2016 |
20160128621 | EVALUATION OF MOVEMENT DISORDERS - This disclosure relates to a system and method to evaluate movement disorders. A movement data aggregator can combine data from a plurality of sensors into an aggregate movement data describing multi-dimensional movement of a handheld device. A calculator to compute an indication of a movement disorder based on the movement vector data and user input data, the user input data being generated in response to physical interaction between the handheld device and a human machine interface of a computing device/machine that is separate from the handheld device. In some examples, the handheld device can communicate with computing device via a wireless interface. | 05-12-2016 |
20160135664 | HANDLE REMOTE CONTROL FOR USE WITH BRONCHOSCOPY NAVIGATION SYSTEM - A surgical system includes an extended working channel, a magnetic field generator, a sensor, a workstation, a computer readable recording medium, and a remote control handle. The extended working channel is sized for insertion into the working channel of a bronchoscope and to receive one or more instruments therethrough. The sensor is associated with a distal end of the extended working channel for detecting a magnetic field generated by the magnetic field generator. The workstation includes a display and is operably connected to the sensor. The computer readable recording medium is associated with the workstation for storing a software program that enables association of the sensed magnetic field with a location of the sensor and that generates one or more images including one or more fields for presentation on the display. The remote control handle enables manipulation of the one or more fields generated by the software. | 05-19-2016 |
20160135710 | Magnetic Particle Imaging Devices and Methods - A magnetic particle imaging device is provided. The device includes a magnetic field source configured to produce a magnetic field having a non-saturating magnetic field region, an excitation signal source configured to produce an excitation signal in the non-saturating magnetic field region that produces a detectable signal from magnetic particles in the non-saturating magnetic field region, and a signal processor configured to convert a detected signal into an image of the magnetic particles. Aspects of the present disclosure also include methods of imaging magnetic particles in a sample, and methods of producing an image of magnetic particles in a subject. The subject devices and methods find use in a variety of applications, such as medical imaging applications. | 05-19-2016 |
20160135759 | PERSONALIZED DETECTION SYSTEM FOR DETECTING MAGNETIC OBJECTS IN THE HUMAN ORGANISM - The invention relates to a device with a sensor arrangement, which is able to detect magnetic or magnetized oral administration forms after oral take-up, moreover tracks the dissolution thereof via the reduction or disappearance of the magnetic field of the oral administration form, and with a log function, which records a subjective evaluation on the part of the human wearer of the sensor arrangement during or after the oral take-up. | 05-19-2016 |
20160143514 | SPHERICAL MECHANISM FOR MAGNETIC MANIPULATION - A magnetic manipulation device ( | 05-26-2016 |
20160143541 | System and Method For Acousto-Electromagnetic Neuroimaging - A system and method for determining an electrical activity in a subject using ultrasound and electromagnetics are provided. In some aspects, the method includes directing ultrasound energy to a portion of a subject's anatomy using an ultrasound system, wherein the ultrasound energy inducing a perturbation to locations in the subject's anatomy, and sensing, using sensors arranged about the subject, a plurality of electromagnetic signals representing an electrical activity of the subject. The method also includes identifying electromagnetic signals that are modulated by the perturbation, and generating a report of the electrical activity using the identified electromagnetic signals. | 05-26-2016 |
20160150973 | SUBJECT INFORMATION ACQUISITION APPARATUS | 06-02-2016 |
20160157742 | MAGNETOENCEPHALOGRAPHY SOURCE IMAGING FOR NEUROLOGICAL FUNCTIONALITY CHARACTERIZATIONS - Methods, systems, and devices are disclosed for implementing magnetoencephalography (MEG) source imaging. In one aspect, a method includes determining a covariance matrix based on sensor signal data in the time domain or frequency domain, the sensor signal data representing magnetic-field signals emitted by a brain of a subject and detected by MEG sensors in a sensor array surrounding the brain, defining a source grid containing source locations within the brain that generate magnetic signals, the source locations having a particular resolution, in which a number of source locations is greater than a number of sensors in the sensor array, and generating a source value of signal power for each location in the source grid by fitting the selected sensor covariance matrix, in which the covariance matrix is time-independent based on time or frequency information of the sensor signal data. | 06-09-2016 |
20160157751 | BONE RECONSTRUCTION AND ORTHOPEDIC IMPLANTS - A surgical navigation system comprising a signal receiver communicatively coupled to a primary processor, the primary processor programmed to utilize a sequential Monte Carlo algorithm to calculate changes in three dimensional position of an inertial measurement unit mounted to a surgical tool, the processor communicatively coupled to a first memory storing tool data unique to each of a plurality of surgical tools, and a second memory storing a model data sufficient to construct a three dimensional model of an anatomical feature, the primary processor communicatively coupled to a display providing visual feedback regarding the three dimensional position of the surgical tool with respect to the anatomical feature. | 06-09-2016 |
20160174862 | MAGNETOENCEPHALOGRAPHY MEASURING APPARATUS AND MAGNETOENCEPHALOGRAPHY MEASURING METHOD | 06-23-2016 |
20160174867 | MAGNETISM MEASURING DEVICE | 06-23-2016 |
20160374579 | INTRAOPERATIVE MAGNETOMETRY MONITORING SYSTEM - A neurophysiological monitoring system includes at least one surgical instrument having at least one magnetometer and a control unit configured to receive magnetic field data generated by the at least one magnetometer. The control unit may provide stimulation to a nerve at a known stimulation time and receive magnetic field data from the at least one magnetometer indicative of a response to stimulation of the nerve at a receive time. An interpretation of the magnetic field data based upon the receive time and the stimulation time may be generated. | 12-29-2016 |
20170231533 | SYSTEMS AND METHODS FOR JOINT ACTIVITY MONITORING | 08-17-2017 |
20220133210 | SYSTEMS, DEVICES, AND METHODS FOR EVALUATING NEUROMODULATION THERAPY VIA DETECTION OF MAGNETIC FIELDS - Systems and methods for measuring the magnetic fields generated by renal nerves before and/or after neuromodulation therapy are disclosed herein. One method for measuring the magnetic field of target nerves during a neuromodulation procedure includes positioning a neuromodulation catheter at a target site within a renal blood vessel of a human patient near the target nerves, and detecting a measurement of the magnetic field generated by the target nerves. The method can further include determining, based on the measurement of the magnetic field, a location of the target nerves, a location of ablation at the target nerves, and/or a percentage the target nerves were ablated by delivered neuromodulation energy. | 05-05-2022 |