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6277078 |
System and method for monitoring a parameter associated with the performance of a heart
An intrabody implantable system for long-term, real time monitoring of at least one parameter associated with heart performance. The system includes (a) a first sensor being implantable within a...
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6264612 |
Catheter with mechano-responsive element for sensing physiological conditions
A catheter for sensing vertebrate conditions has plural piezoresistive sensors directly electrically coupled to discrete application specific integrated circuits. A mechano-responsive element is in...
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6264611 |
Monitor for interventional procedures
A ball-shaped semiconductor monitoring device (150) having one or more transducer functions for use with an instrument that is insertable into a human body. In one disclosed embodiment, a needle...
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6265792 |
Medical device having precision interconnect
An electrical device such as a pressure guide wire (700) which has a resistive pressure sensor, such as a piezoresistive sensor (208), uses a precision interconnect in order to provide proper...
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6264613 |
Site coding for medical devices for introduction into a patient's body
Disclosed is a medical device for introduction into a patient's body, in particular into the patient's blood vessel, for measuring a physiological parameter. The medical device comprises means for...
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6254548 |
Internal thermometer
A miniature spherical-shaped internal temperature transponder. A temperature sensor (25) is fabricated in a spherical integrated transponder circuit (15) which may be placed in the human body by...
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6238349 |
Method and apparatus for noninvasive determination of cardiac performance parameters
Apparatus and method for noninvasively determining cardiac performance parameters including 1) lengths of systolic time intervals, (2) contractility index, (3) pulse amplitude ratios while...
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6234973 |
Implantable medical device for sensing absolute blood pressure and barometric pressure
An implantable barometric pressure sensor coupled with an implantable medical device (IMD) provides a barometric pressure related, reference pressure value for use in combination with an absolute...
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6221024 |
Implantable pressure sensor and method of fabrication
A body implantable pressure sensor attached to an endocardial lead for implantation in a heart chamber or cardiac blood vessel for sensing blood pressure and providing blood pressure signals to an...
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6221023 |
Sensor for intra-corporeal medical device and a method of manufacture
A sensor mounted on the distal end of an intra-corporeal catheter detects pressure applied thereto. The sensor includes a chip that is deformable in accordance with pressure applied thereto, strain...
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6214634 |
Sensor device and method of forming a sensor device
A sensor device (20) comprises a sensor package (22) having a cavity (24) formed therein, a sensor die (26) mounted on a bottom surface (28) of the cavity (24) and a protective coating (30) formed...
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6210339 |
Flexible elongate member having one or more electrical contacts
A flexible elongate member such as a pressure guide wire (1000) includes an electrical device such as a pressure sensor (1002). The pressure sensor (1002) is electrically connected to conductive...
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6206834 |
Stiffened hollow vascular device
The medical appliance has an elongated tubular shaft with a lumen extending therethrough and slots in the distal area for pressure medium entry into the lumen. A stiffening means in the form of an...
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6193669 |
System and method for detecting, localizing, and characterizing occlusions, stent positioning, dissections and aneurysms in a vessel
This invention relates to a method and devices for detection, localization and characterization of occlusions, aneurysms, dissections stent position, dissections stent mal-position, wall...
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6193670 |
Hemostatic agent delivery device having built-in pressure sensor
An instrument for achieving rapid hemostasis at the conclusion of a catheterization procedure comprising a hemostatic agent injection device for use with a conventional introducer sheath used to...
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6183421 |
Gas column device with a single use connector
The present invention describes a connector set that joins the lumen of an air column catheter to a transducer housing. When first joined, the connector set automatically injects into the bladder...
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6171253 |
Flat tube pressure sensor
A pressure sensor includes a tube for channeling a fluid therethrough. A seat is disposed in an outer surface of the tube, with a flexible diaphragm at the bottom thereof. The diaphragm is planar,...
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6162182 |
Pressure tip cannula
A cannula that is usable to remove blood from a patient during an operation such as bypass surgery where the cannula has a pressure sensor in the form of an electronic piezoresistive chip located...
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6142958 |
Sensor and guide wire assembly
A sensor and guide wire assembly includes a core wire having a distal end, a proximal end, and a plurality of sections of different cross sections and thereby different flexibilities. At least one...
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6139503 |
Invasive blood pressure measurement device
A pressure transducer arrangement featuring a holding element for a number of pressure transducers. For each pressure transducer a group of electronic counter-contacts is provided on the holding...
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6129682 |
Non-invasive method of measuring cerebral spinal fluid pressure
The invention provides a method of non-invasively determining intracranial pressure from measurements of an eye. A parameter of an optic nerve of the eye is determined, along with an intraocular...
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6120457 |
In vivo zeroing of catheter pressure sensor
A catheter-based physiological pressure sensing device, which can be calibrated in vivo, is disposed in the distal end of a catheter, and is preferably in the form of a bulb-like device. The...
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6117086 |
Pressure transducer apparatus with disposable dome
A physiological pressure transducer is disclosed which can be adapted for multiple uses and which employs a low cost semiconductor strain gauge sensor. The transducer is connected to a fluid-filled...
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6113590 |
Heart catheter with means for measuring the contact
In a probe disposed at the distal end of a heart catheter for the coagulation of muscle and connective tissues by subjecting them to a high frequency field, a pressure sensor is provided for...
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6106476 |
Ultra miniature pressure sensor and guide wire using the same and method
A guide wire having pressure sensing capabilities for measuring the pressure of liquid in a vessel comprising a flexible elongate member and having proximal and distal extremities and having an...
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6106477 |
Chronically implantable blood vessel cuff with sensor
A system for chronically measuring a physiologic parameter by an implantable device which has several forms is described. At its core a fixture for holding on to a blood vessel and forcing a sensor...
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6089103 |
Method of flow measurements
A system and method for measuring flow of a fluid flowing in a narrow channel. A sensor is provided, having an element sensitive to pressure, and an element sensitive to a selected chemical or...
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6090048 |
Method and arrangement for detecting the condition of a blood vessel access
Methods for detecting the condition of a catheter providing access to a patient's blood vessel are disclosed in which the blood is supplied to an extracorporeal blood flow circuit. The method...
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6083174 |
Implantable measuring unit for intracorporal measurement of patient data
A measuring system for measurement of patient data inside a patient's body includes a flexible foil for implantation into the patient's body. At least one sensor is arranged on the flexible foil. A...
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6077227 |
Method for manufacture and implant of an implantable blood vessel cuff
A method for construction ond delivery of a novel implantable medical device provides for use of a kit having sizeable fixture components for holding a blood vessel and a sensor portion connectable...
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6071243 |
Pressure transducer positioning system
An optical system for positioning a pressure transducer relative to a patient to provide for accurate measurement of bodily fluids within the patient. A light source such as a laser is used to...
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6052613 |
Blood pressure transducer
This invention relates to a blood pressure transducer (8) and provides a safe and economical transducer by providing a novel optical fiber (80) made of a transparent elastomer. The present...
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6019729 |
Sensor mechanism-equipped catheter
A sensor mechanism-equipped catheter is easy to produce, suitable for a diameter reduction, and achieves a high sensing precision. In a catheter, a sensor assembly has a pressure-receiving piston,...
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6019728 |
Catheter and sensor having pressure detecting function
A catheter includes a longitudinally extending catheter tube to be inserted into a body. A plurality of sensing portions are arranged in the catheter tube for detecting at least two types of...
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6015386 |
System including an implantable device and methods of use for determining blood pressure and other blood parameters of a living being
A system for monitoring blood pressure within a blood vessel of a living being. The system includes an implantable sensor unit and an associated externally located energy application transceiver....
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6004274 |
Method and apparatus for continuous non-invasive monitoring of blood pressure parameters
Continuous, non-invasive method and apparatus for measuring blood pressure parameters and the like are disclosed. One disclosed apparatus includes an earpiece for sealing an individual's ear canal...
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5957853 |
Self levelling biological pressure transducer means with input excitation voltage matching amplifier
A biological pressure measuring system with a transmission device for transmitting a biological pressure at a biological location to a pressure monitor/transducer for measuring the biological...
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5954657 |
Captive deadender for luer fitting
A captive deadender cap for use in venting the patient side chamber of a disposable pressure transducer through a vent port. The captive deadender cap includes retention tabs formed along the...
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5951487 |
Intracorporeal measuring system
A Measurement device for medical applications is disclosed, comprising an intracorporeal sensor element (5), a extracorporeal evaluation unit and electrical connections (2, 6) between the sensor...
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5899927 |
Detection of pressure waves transmitted through catheter/lead body
In an implanted medical device, a method and apparatus for detecting pressure waves caused by movement of a body organ, muscle group, limb or the like and transmitted through a catheter or lead...
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5868678 |
Two-part medical pressure transducer with diaphragm stand-offs
A medical pressure transducer includes a reusable component with channels to either side of a reusable diaphragm, and a disposable dome with mounting wings to either side of a disposable diaphragm...
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5860938 |
Medical pressure sensing guide wire
A guide wire that is capable of sensing the phasic pressure at the distal end of the guide wire. The guide wire has a central lumen which provides a non-compliant fluid path from the distal end of...
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5848971 |
Modular medical pressure transducer
A medical pressure transducer includes a reusable component with channels to either side of a reusable diaphragm, and a disposable dome with mounting wings to either side of a disposable diaphragm...
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5836885 |
Pressure monitoring guidewire and method for manufacturing same
The pressure monitoring guidewire comprises an elongated tube made of one piece of elastic Nickel Titanium alloy. The distal end portion of the tube has transverse openings formed through the tube...
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5833645 |
Method of use of a transport catheter
A catheter with several independent lumens extending longitudinally through the catheter for accepting probes and for introducing fluid through the catheter and into a body cavity is disclosed. The...
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5823967 |
Flush valve with cable attachment
A flush valve having a fluid receiving housing having a first passageway, a fluid discharge housing having a second passageway, and a flow restricting device having a capillary tube defining a...
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5820565 |
Flush valve with interlocking seal
A flush valve comprising a fluid receiving housing having a first passageway, a fluid discharge housing having a second passageway, and a flow restricting means having a capillary tube defining a...
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5810738 |
Miniaturized blood pressure monitor kit
A blood pressure monitor kit suitable for use in emergency scenarios such as cardiopulmonary arrest situations. The kit includes a catheter for insertion in the femoral artery of the patient, a...
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5810735 |
External patient reference sensors
A system for long term monitoring of an internal patient medical parameter having an external reference and means to correct the internal measurements of the parameter via external measurements...
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5807265 |
Catheter having pressure detecting ability
A catheter having a sensor for detecting forces acting on its distal end includes a catheter tube, a chamber defined in the catheter tube. The chamber is filled with silicon gel. The catheter also...
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