Patent application number | Description | Published |
20100220334 | FORWARD-IMAGING OPTICAL COHERENCE TOMOGRAPHY (OCT) SYSTEMS AND PROBES - Provided are forward-imaging optical coherence tomography (OCT) systems and probes. | 09-02-2010 |
20110077528 | METHOD AND APPARATUS FOR SIMULTANEOUS HEMOGLOBIN REFLECTIVITY MEASUREMENT AND OCT MEASUREMENT, THROMBUS DETECTION AND TREATMENT, AND OCT FLUSHING - A method and apparatus for simultaneous hemoglobin reflectivity measurement and OCT measurement, thrombus detection and treatment, and OCT flushing. A first optical energy for OCT and a second optical energy for hemoglobin may be used. | 03-31-2011 |
20110112409 | ROTATING CATHETER PROBE USING A LIGHT-DRIVE APPARATUS - The invention is a rotating tip catheter-imaging probe where electromagnetic energy is delivered to the distal end of a catheter and converted to mechanical energy using a light drive apparatus. The mechanical energy is then used to rotate a mirror that redirects light in fixed pattern on a sample. The rotating element of the light drive apparatus contains vanes, which rotate about an axis and positioned with bearings to minimize friction. A chamber encompasses the rotating element and is set to a vacuum pressure. The rotational speed of the catheter tip can be controlled by varying the optical power delivered to the vanes, the vacuum pressure in the chamber, or by a braking mechanism applied to the rotating element. The vanes may be shaped in a particular geometry to increase forces on the vanes from thermally driven gas flow. | 05-12-2011 |
20110137124 | OPTICAL IMAGING CATHETER FOR ABERRATION BALANCING - An Optical imaging catheter that balances optical aberrations and allows recording of high quality optical images while relaxing the requirement of a fluid occupying the space between the prism and the inner sheath of the catheter. | 06-09-2011 |
20110190586 | METHODS AND SYSTEMS FOR INTRAVASCULAR IMAGING AND FLUSHING - A method and apparatus for initiating intravascular imaging and flushing is described herein. | 08-04-2011 |
20120013914 | APPARATUS AND METHODS FOR UNIFORM FREQUENCY SAMPLE CLOCKING - A method and a system for Uniform Frequency Sample Clocking to directly sample the OCT signal with a temporally-non-linear sampling clock derived from a k-space wavemeter on the external sample clock input port of a digitizer. | 01-19-2012 |
20120022360 | METHODS FOR INTRAVASCULAR IMAGING AND FLUSHING - The invention generally relates to methods for determining when to initiate an imaging procedure inside a lumen of a vessel. In certain embodiments, methods of the invention involve introducing an imaging apparatus into a lumen of a vessel, introducing a flushing fluid into the lumen of the vessel, detecting a signal associated with introduction of the flushing fluid, and initiating an imaging procedure based upon results of the detecting step. | 01-26-2012 |
20120162660 | AUTOMATIC CALIBRATION SYSTEMS AND METHODS OF USE - The disclosed automatic calibration systems and methods provide a repeatable way to detect internal catheter reflections and to shift the internal catheter reflections to calibrate an image. | 06-28-2012 |
20120165661 | INTEGRATED SYSTEM ARCHITECTURES AND METHODS OF USE - Provided herein are systems, methods and apparatuses for an integrated system and architectures comprising a central processing unit (CPU) located a substantial physical distance from a sample. | 06-28-2012 |
20120170848 | ARTIFACT MANAGEMENT IN ROTATIONAL IMAGING - A method for artifact management in a rotational imaging system is presented. The method includes the steps of acquiring data employing a helical scanning pattern over N revolutions, where N is greater than 1, and detecting at least one artifact in the acquired data of each revolution. The method further includes segmenting the data acquired over N revolutions into N-1 data frames each bounded by at least one of the at least one artifacts. | 07-05-2012 |
20120224751 | AUTOMATIC CALIBRATION SYSTEMS AND METHODS OF USE - The disclosed automatic calibration systems and methods provide a repeatable way to detect internal catheter reflections and to shift the internal catheter reflections to calibrate an image. | 09-06-2012 |
20130090536 | ANALYTE SENSOR METHOD AND APPARATUS - Provided herein are systems, methods, and apparatuses for an analyte sensor. In one aspect, an analyte sensing device comprises a sensor body member including at least one nanopore and an optical conduit in optical communication with the sensor body member. The optical conduit transmits optical energy to the sensor body member and receives reflected optical energy back from the sensor body member. A photodetector is optically coupled to the optical conduit to determine an optical parameter from the reflected optical energy. | 04-11-2013 |
20130245378 | ROTATING CATHETER PROBE USING A LIGHT-DRIVE APPARATUS - The invention is a rotating tip catheter-imaging probe where electromagnetic energy is delivered to the distal end of a catheter and converted to mechanical energy using a light drive apparatus. The mechanical energy is then used to rotate a mirror that redirects light in fixed pattern on a sample. The rotating element of the light drive apparatus contains vanes, which rotate about an axis and positioned with bearings to minimize friction. A chamber encompasses the rotating element and is set to a vacuum pressure. The rotational speed of the catheter tip can be controlled by varying the optical power delivered to the vanes, the vacuum pressure in the chamber, or by a braking mechanism applied to the rotating element. The vanes may be shaped in a particular geometry to increase forces on the vanes from thermally driven gas flow. | 09-19-2013 |
20130338495 | OCT USING SPECTRALLY RESOLVED BANDWIDTH - The embodiments disclosed herein is related to a system for optical coherence tomographic imaging of turbid (i.e., scattering) materials utilizing multiple channels of information. The multiple channels of information may be comprised and encompass spatial, angle, spectral and polarization domains. More specifically, the embodiments disclosed herein is related to methods and apparatus for utilizing optical sources, systems or receivers capable of providing (source), processing (system) or recording (receiver) a multiplicity of channels of spectral information for optical coherence tomographic imaging of turbid materials. In these methods and apparatus the multiplicity of channels of spectral information that can be provided by the source, processed by the system, or recorded by the receiver are used to convey simultaneously spatial, spectral or polarimetric information relating to the turbid material being imaged tomographically. The multichannel optical coherence tomographic methods can be incorporated into an endoscopic probe for imaging a patient. | 12-19-2013 |
20140083970 | FORWARD-IMAGING OPTICAL COHERENCE TOMOGRAPHY (OCT) SYSTEMS AND PROBES - Provided are forward-imaging optical coherence tomography (OCT) systems and probes. | 03-27-2014 |
20140098373 | POLARIZATION-SENSITIVE SPECTRAL INTERFEROMETRY - A polarization sensitive spectral interferometer apparatus and method for analyzing a sample by optical energy reflected from the sample. The polarization sensitive spectral interferometer apparatus and method determines polarization properties of the sample by optical energy reflected from the sample. | 04-10-2014 |
20140098374 | APPARATUS AND METHODS FOR UNIFORM FREQUENCY SAMPLE CLOCKING - A method and a system for Uniform Frequency Sample Clocking to directly sample the OCT signal with a temporally-non-linear sampling clock derived from a k-space wavemeter on the external sample clock input port of a digitizer. | 04-10-2014 |
20140099012 | SYSTEMS FOR CORRECTING DISTORTIONS IN A MEDICAL IMAGE AND METHODS OF USE THEREOF - The invention relates generally systems for correcting distortion in a medical image and methods of use thereof. Methods and systems for displaying a medical image of a lumen of a biological structure, generally comprise obtaining image data of a lumen of a biological structure from an imaging device, correcting the image data for translational distortions, in which correcting is accomplished without reference to another data set, and displaying a corrected image. | 04-10-2014 |
20140100440 | SYSTEM AND METHOD FOR INSTANT AND AUTOMATIC BORDER DETECTION - The invention generally relates to medical imaging systems that instantly and/or automatically detect borders. Embodiments of the invention provide an imaging system that automatically detects a border at a location within a vessel in response only to navigational input moving the image to that location. In some embodiments, systems and methods of the invention operate such that when a doctor moves an imaging catheter to a new location with in tissue, the system essentially instantly finds, and optionally displays, the border(s), calculates an occlusion, or both. | 04-10-2014 |
20140100442 | SYSTEMS FOR INDICATING PARAMETERS IN AN IMAGING DATA SET AND METHODS OF USE - Systems and methods for aiding users in viewing, assessing and analyzing images, especially images of lumens and medical devices contained within the lumens. Systems and methods for interacting with images of lumens and medical devices, for example through a graphical user interface. | 04-10-2014 |
20140100449 | AUTOMATIC STENT DETECTION - This invention relates generally to the detection of objects, such as stents, within intraluminal images using principal component analysis and/or regional covariance descriptors. In certain aspects, a training set of pre-defined intraluminal images known to contain an object is generated. The principal components of the training set can be calculated in order to form an object space. An unknown input intraluminal image can be obtained and projected onto the object space. From the projection, the object can be detected within the input intraluminal image. In another embodiment, a covariance matrix is formed for each pre-defined intraluminal image known to contain an object. An unknown input intraluminal image is obtained and a covariance matrix is computed for the input intraluminal image. The covariances of the input image and each image of the training set are compared in order to detect the presence of the object within the input intraluminal image. | 04-10-2014 |
20140100453 | AUTOMATIC IMAGE PLAYBACK - The invention relates to systems and methods for three dimensional imaging of tissue. Systems and methods of the invention receive a three dimensional data set and display a series of coaxial longitudinal images (i.e., each rotationally offset from another around an axis) in sequence, creating a video effect as if the view were scrolling around the tissue. | 04-10-2014 |
20140100454 | METHODS AND SYSTEMS FOR ESTABLISHING PARAMETERS FOR THREE-DIMENSIONAL IMAGING - The invention relates to systems and methods for the operation of three-dimensional imaging systems. Systems and methods of the invention are operable to display an image of tissue, receive a selection of points from within the image, establish a boundary corresponding to the selected points, and capture a three-dimensional image of the tissue within the designated boundary | 04-10-2014 |
20140176960 | POLARIZATION SENSITIVE OPTICAL COHERENCE TOMOGRAPHY SYSTEM - The invention generally relates to a polarization sensitive optical coherence tomography (OCT) system that includes both polarization maintaining and single mode optical fiber and methods of use thereof. | 06-26-2014 |
20140176963 | OPTICAL COHERENCE TOMOGRAPHY SYSTEM THAT IS RECONFIGURABLE BETWEEN DIFFERENT IMAGING MODES - The invention generally relates to an optical coherence tomography system that is reconfigurable between two different imaging modes and methods of use thereof. | 06-26-2014 |
20140178000 | POWER-EFFICIENT OPTICAL BUFFERING USING OPTICAL SWITCH - The present invention generally relates to optical circuits for mitigating power loss in medical imaging systems and methods for using such circuits. Circuits of the invention can involve a first optical path, a second optical path, and a means for recombining an optical signal transmitted through the first and second optical paths by sequentially gating the first and second optical paths to a single output. | 06-26-2014 |
20140240713 | APPARATUSES AND METHODS FOR IMAGING INSIDE A VESSEL - The invention generally relates to apparatuses and methods for imaging inside a vessel. In certain aspects, the invention provides an apparatus that includes an imaging device configured to image an inside of a vessel, and a sensing device configured to detect a conformational shape of the apparatus. | 08-28-2014 |
20140257095 | SHAPE SENSING INTERVENTIONAL CATHETERS AND METHODS OF USE - The invention relates to systems and methods for three dimensional imaging of tissue. The invention provides systems and methods to provide a representation of tissue from three-dimensional data that includes intravascular imaging data as well as data representing a shape of the intravascular imaging probe. Device of the invention combine a shape-sensing mechanism with an intravascular intervention catheter. | 09-11-2014 |
20140267804 | TOMOGRAPHIC IMAGING SYSTEM WITH INTEGRATED MICROSURGERY STABILIZATION TOOL - The invention relates to medical intervention systems with integrated imaging and microsurgery subsystems, in which the microsurgery subsystem employs hardware that is used for imaging in the imaging subsystem to provide a stabilization feedback loop to prevent unwanted vibrations or motions in a microsurgery tool. | 09-18-2014 |
20140270445 | SYSTEM AND METHOD FOR OCT DEPTH CALIBRATION - The invention generally relates to methods for calibrating an OCT image by comparing a detected location of a feature within the image to an expected location of the feature, calculating a calibration value, and transforming the location of pixels within the image to provide a calibrated image. | 09-18-2014 |
20140276023 | SYSTEMS AND METHODS FOR DETERMINING A PROBABILITY OF A FEMALE SUBJECT HAVING A CARDIAC EVENT - The invention generally relates to systems and methods for determining a probability of a female subject having a cardiac event. | 09-18-2014 |
20140276036 | SYSTEMS AND METHODS FOR DIAGNOSING CORONARY MICROVASCULAR DISEASE - The invention provides systems and methods for assessing the vasculature of a subject. In certain aspects, systems and methods of the invention involve receiving functional flow data of a subject via a data collector co-located with a radiopaque label, receiving imaging data of the vasculature including the radiopaque label, generating a vasculature map corresponding to the functional flow data, and displaying the vasculature map image on a monitor. | 09-18-2014 |
20140276084 | INTRAVASCULAR ULTRASOUND DEVICES - Devices and methods of the invention provide for imaging an object within a body lumen. In certain aspects, a device for intraluminal imaging of the invention includes an elongate body defining a longitudinal axis, and a linear-array of imaging elements located on the body along the longitudinal axis. | 09-18-2014 |