| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 600488000 | Pressure transducer structure | 28 |
| 20080208065 | Perivascular pressure sensor and sensing system - An embodiment of the invention is an in-vivo blood pressure sensor device including a strain transducer and flexible biocompatible material that carries the strain transducer. The flexible biocompatible material is configured to encircle the outside of a blood vessel when surgically installed. A preferred embodiment in-vivo blood pressure sensor device of the invention includes a strain transducer carried by a flexible biocompatible ring that is configured to be surgically installed to encircle a blood vessel. The device also includes passive circuitry encased in biocompatible material for sensing strain in the strain transducer and for providing data to an external reader. The passive circuitry is also configured to be surgically installed in a subject. The device further includes a telemetry coil encased in biocompatible material and configured to be surgically installed in a subject, to receive power via inductive coupling to an external reader, to supply power to the passive circuitry and to act as an antenna for communications with an external reader. | 08-28-2008 |
| 20080269623 | METALLIZATION WITH TAILORABLE COEFFICIENT OF THERMAL EXPANSION - The present invention is directed to an interconnect for an implantable medical device. The interconnect includes a pad and a first layer introduced over the pad. At least one of the pad or the first layer comprise a negative coefficient of thermal expansion (CTE) material. | 10-30-2008 |
| 20080287813 | Blood Pressure Monitoring Device and Methods for Making and for Using Such a Device - Disclosed are a system and a method for noninvasively and continuously monitoring blood pressure. Also disclosed is a method for making such a device. The system includes a semiconductor chip comprising a transducer array of individual pressure or force sensors and associated circuitry providing control signals to and/or processing signals from these sensors, all of the above integrated in the chip. Also disclosed is a specific sensor structure provided on said chip. The invention further encompasses a system for measuring and/or tracking the blood pressure waveform and for combining the latter with related blood values like the heartbeat, derived from the above or other measuring devices. | 11-20-2008 |
| 20090088651 | Method and apparatus to perform transvascular hemodynamic sensing - An implantable transvascular pressure sensing device may include at least one deflection sensor configured to output a deflection signal indicative of vascular wall deflections. A implantable transvascular pressure sensing device may further include an implantable sensor support member attached to the deflection sensor, the sensor support member configured to facilitate contact between the deflection sensor and a first vessel wall at a portion of a first vessel proximate a second vessel, wherein the portion of the first vessel wall is adjacent to the second vessel such that wall deflections of the second vessel deflect the portion of the first vessel wall. A method of measuring a parameter of a vessel can include generating a deflection signal from a sensor within a vein, the deflection signal indicative of venous wall deflections of the vein, and determining a parameter value associated with a vessel contacting the vein using the deflection signal. | 04-02-2009 |
| 20090112103 | Wireless Pressure Sensing Shunts - Devices and methods useful for sensing or measuring a pressure and remotely indicating or communicating that pressure are provided. The devices and methods have particular utility in sensing pressures in implantable medical devices and more particularly in hydrocephalus shunts. In one exemplary embodiment, an implantable valve can include a housing having a reservoir adapted to receive fluid flow therethrough between an inlet port and an outlet port. The implantable valve can also include a needle-penetrable septum to allow fluid delivery to the reservoir and/or a needle guard disposed within the housing and adapted to protect the radio frequency tag from a needle penetrating into the housing. A radio frequency (RF) tag can be disposed within the reservoir and can be adapted to change one or more of its electromagnetic characteristics in response pressure applied thereto by fluid in or flowing through the reservoir. The RF tag can produce a response to a wireless signal characterized by the one or more electromagnetic characteristics that correlates to a pressure of fluid in or flowing through the reservoir. | 04-30-2009 |
| 20090177096 | CONTACT FORCE SENSOR PACKAGE, BLOOD PRESSURE METER WITH THE SAME, AND METHOD FOR FABRICATING THE CONTACT FORCE SENSOR PACKAGE - A contact force sensor package includes a substrate layer having a vibration detection unit and a pair of first junction pads that are electrical connection ports which are provided on an upper surface of the substrate layer, a flexible circuit substrate layer having a pair of second junction pads provided at a position corresponding to the first junction pads and electrically connected to the first junction pad, a vibration transfer unit having one side contacting the vibration detection unit and the other side contacting a human body and transferring a sphygmus wave of the human body to the vibration detection unit, and an adhesion layer formed between the substrate layer and the flexible circuit substrate layer to reinforce a junction force between the substrate layer and the flexible circuit substrate layer, the adhesion layer being not formed in an area overlapping at least the vibration transfer unit. | 07-09-2009 |
| 20100022896 | VENTRICULAR SHUNT SYSTEM AND METHOD - A ventricular shunt systems and methods of preventing hydrocephalus are described herein. In one aspect, the ventricular shunt system has at least one pressure sensor that is configured to be selectively electromagnetically coupled to an ex-vivo source of RF energy and is variable in response to the pressure in a patient's ventricle. | 01-28-2010 |
| 20100056932 | Disposable Blood Pressure Transducer And Monitor Interface - A medical blood pressure transducer that provides an identifier to a monitor that conveys characteristics of the transducer. The monitor can use the information to decide whether to function, or in calibration of the system. The transducer may be part of a disposable blood pressure monitoring system, and may include two transducers closely-spaced to provide two separate but identical outputs. In this way, the transducer may be connected to both a patient monitor and a cardiac output monitor at the same time measurements from a single line can be simultaneously supplied to two separate monitoring devices (for example a patient monitor and a cardiac output monitor). The identifier for the transducer may be circuitry, specifically a resistance/capacitance (RC) combination that possesses a characteristic time constant. | 03-04-2010 |
| 20100174201 | ANCHORED IMPLANTABLE PRESSURE MONITOR - An anchored implantable pressure monitor. | 07-08-2010 |
| 20100185103 | IMPLANTABLE PRESSURE MONITOR - An implantable pressure monitor. | 07-22-2010 |
| 20100217136 | MEDICAL DEVICES - There is disclosed a medical device for implantation in a body comprising: one or more sensors for sensing a physiologically or clinically relevant parameter; and telemetric communications means for telemetrically transmitting data related to a parameter sensed by the one or more sensors to a remote device. | 08-26-2010 |
| 20100317978 | IMPLANTABLE MEDICAL DEVICE HOUSING MODIFIED FOR PIEZOELECTRIC ENERGY HARVESTING - Methods, systems, and apparatus for powering and/or recharging medical devices implanted within the body are described. An illustrative implantable sensor for sensing one or more physiologic parameters within a body lumen includes a housing having an exterior wall that has an inner surface and an outer surface and that defines an internal cavity. A portion of the housing includes an electrically conductive material that functions as a first electrical conductor. A flexible piezoelectric layer is disposed adjacent to a portion of the exterior wall and a second electrical conductor is disposed adjacent to the piezoelectric layer. The piezoelectric layer is configured to displace in response to periodic pressure pulses within the body lumen and generate a voltage differential between the first and second electrical conductors. | 12-16-2010 |
| 20110251497 | Ultra Miniature Pressure Sensor - A method of measuring blood pressure and velocity proximally and distally of a stenosis in a vessel carrying blood includes the steps of providing a guide wire having both a pressure sensor and a velocity sensor disposed on a distal region of the guide wire, introducing the guide wire into the vessel, advancing the guide wire to position the pressure sensor and the velocity sensor proximally and distally of the stenosis, and measuring the blood pressure and velocity proximally and distally of the stenosis with the pressure sensor and the velocity sensor. | 10-13-2011 |
| 20110282217 | METHOD AND DEVICE FOR DETERMINING DYSFUNCTION OF THE HEART - A method of determining ventricular dysfunction, particularly right ventricular dysfunction and device for determining dysfunction of the heart and determining a cardiac output are discussed. Furthermore a system for determining the pressure(s) and/or the pressure difference gradient between right ventricular diastolic pressure and pulmonary artery diastolic pressure said system comprising a support member ( | 11-17-2011 |
| 20120157862 | PRESSURE TRANSDUCER FOR MEDICAL USE AND CONTACT HOLDER - The invention relates to a pressure transducer for measuring blood pressure for medical use, which can be connected by pressure to the vascular system of a patient, said transducer comprising a pressure measuring element for measuring the prevailing pressure in the fluid chamber, and also mechanical holding means for detachably mounting the pressure transducer onto the contact holder. The invention also relates to a contact holder for holding and for electrically contacting a pressure transducer for medical use. | 06-21-2012 |
| 20120330168 | BLOOD VESSEL CATHETER AND INJECTION SYSTEM FOR CARRYING OUT A BLOOD PRESSURE MEASUREMENT OF A PATIENT - An injection system for injecting an injectate fluid into a blood vessel of the patient and for carrying out a blood pressure measurement of a patient. The injection system includes a catheter tube having a first end for penetrating the blood vessel of the patient, and a pressure sensor which is arranged close to a second end of the catheter tube and can sense a pressure of a liquid in the catheter tube as an indication of the blood pressure of the patient. | 12-27-2012 |
| 20130109980 | SYSTEMS AND METHODS FOR A WIRELESS VASCULAR PRESSURE MEASUREMENT DEVICE | 05-02-2013 |
| 20130237864 | STEERABLE GUIDE WIRE WITH PRESSURE SENSOR AND METHODS OF USE - A high performance guide wire with a pressure sensor for measuring blood pressure, may utilize a single electrical lead connected to the guide wire. An integrated circuit, powered by the single electrical connection on the guide wire, may interface with the pressure sensor, and may convert pressure information to an encoded signal. The encoded signal may be detectable in the electrical circuit, and can be used to display a pressure waveform as detected by the pressure sensor. For example, when utilized for percutaneous coronary interventions, such a guide wire can provide high quality blood pressure measurements (e.g., for fractional flow reserve), while also possessing excellent steerability and handling characteristics for navigating tortuous anatomy. | 09-12-2013 |
| 20130274619 | SYSTEMS AND METHODS FOR A LOW-PROFILE VASCULAR PRESSURE MEASUREMENT DEVICE - A measuring system includes an elongated sleeve having a compact diameter configured to be delivered over a standard guide wire and able to be flexibly threaded into a tortuous or diseased vascular pathway of a human. Sensor(s), located at a distal end of the sleeve, measure physiological parameter(s) inside the human. The sleeve measuring system has an outer diameter of approximately 20 mils or less and is capable of accommodating the standard guide wire, typically 14 mils in diameter. | 10-17-2013 |
| 20130296721 | Hypertension System And Method - Disclosed are hypertension systems and related methods that include a blood pressure sensor located or implanted under the skin of a patient, and electronics, which may have the size and shape of a wrist watch, for example, that monitors the blood pressure of the patient by communicating with the implanted sensor. | 11-07-2013 |
| 20130296722 | SYSTEM FOR DETECTION OF BLOOD PRESSURE USING A PRESSURE SENSING GUIDE WIRE - A guide wire has a distal end incorporating a coil and a capacitive element that form a resonance circuit with a resonance frequency that is responsive to the pressure of blood external to the guide wire. The resonance frequency can be detected wirelessly, or through two contacts at the proximal wire end, or through one brush contact located inside an insertion sheath and a ground electrode. Wireless detection can be implemented via a second resonance circuit, and electronics for determining the frequency when the first and second circuits are in resonance with each other. | 11-07-2013 |
| 20140024956 | TRANSDUCER INTERFACE SYSTEM AND METHOD - A transducer interface system/method allowing conversion from an analog sensor input to a standardized analog output interface is disclosed. In some preferred embodiments the system/method permits a fiber optic pressure sensor to be interfaced to a standard patient care monitor (PCM) system using standardized Wheatstone Bridge analog interface inputs. Within this context the Wheatstone Bridge sensed output is defined by stimulus from the PCM and modulation of bridge element values by the conditioned output of an analog pressure sensor. The use of analog-to-digital-to-analog conversion in this transducer interface permits retrofitting of PCM devices having analog Wheatstone Bridge inputs with advanced patient monitoring sensors without the need for specialized modifications to the baseline PCM data collection framework. Methods disclosed herein include techniques to connect arbitrary types/numbers of analog sensors to traditional PCM systems without the need for PCM system hardware/software modifications. | 01-23-2014 |
| 20140081158 | ANCHORED IMPLANTABLE PRESSURE MONITOR - An anchored implantable pressure monitor. | 03-20-2014 |
| 20140180142 | Pressure-Sensing Intravascular Devices, Systems, and Methods - Intravascular devices, systems, and methods are disclosed. In some embodiments, the intravascular devices include at least one pressure sensing component within a distal portion of the device. In that regard, one or more electrical, electronic, optical, and/or electro-optical pressure-sensing components is secured to an elongated substrate such that the pressure-sensing component is mounted perpendicular to a central longitudinal axis of the device. In some implementations, the elongated substrate has a cylindrical profile. Methods of making, assembling, and/or using such intravascular devices and associated systems are also provided. | 06-26-2014 |
| 20140180143 | Pressure-Sensing Intravascular Devices, Systems, and Methods - Intravascular devices, systems, and methods are disclosed. In some embodiments, the intravascular devices include at least one pressure sensing component within a distal portion of the device. In that regard, one or more electrical, electronic, optical, and/or electro-optical pressure-sensing components is secured to an elongated substrate such that the pressure-sensing component is mounted perpendicular to a central longitudinal axis of the device. In some implementations, the elongated substrate has a cylindrical profile. Methods of making, assembling, and/or using such intravascular devices and associated systems are also provided. | 06-26-2014 |
| 20140213916 | WIRELESS MEMS LEFT ATRIAL PRESSURE SENSOR - Systems for monitoring left atrial pressure using implantable cardiac monitoring devices and, more specifically, to a left atrial pressure sensor implanted through a septal wall are presented herein. | 07-31-2014 |
| 20150105674 | Flow Based Pressure Isolation and Fluid Delivery System Including Flow Based Pressure Isolation and Flow Initiating Mechanism - The fluid delivery system includes a pressurizing device for delivering a pressurized injection fluid, a low pressure fluid delivery system, and a pressure isolation mechanism adapted for fluid communication with the pressurizing device and low pressure fluid delivery system. The pressure isolation mechanism includes a housing defining an inlet port, an isolation port, and an internal cavity. The housing defines a seal seat in the internal cavity between the inlet port and isolation port. A valve member is disposed in the internal cavity. The valve member is free floating in the internal cavity and is adapted to engage the seal seat. The valve member has an open position permitting fluid communication between the inlet port and isolation port, and is fluid flow responsive to fluid flow in the inlet port to engage the seal seat and attain a closed position preventing fluid flow between the inlet port and isolation port. | 04-16-2015 |
| 20150141854 | OPTICAL FIBER PRESSURE SENSOR - The disclosure includes an apparatus including an elongated assembly, at least a portion of which is sized, shaped, or otherwise configured to be inserted into a human body to measure a physiological parameter at an internal location within the body. The elongated assembly includes an elongated member having a first length and an outer surface, a coil disposed about at least a portion of the elongated member, the coil having a second length, and at least one stand-off member positioned between the outer surface of the elongated member and the coil, where the at least one member is configured to prevent the coil from contacting an optical fiber positioned between the elongated member and the coil. | 05-21-2015 |
