Matches 151 - 200 out of 322 < 1 2 3 4 5 6 7 >
Match Document Document Title
5797838 Physical-information-image displaying apparatus  
A physical-information-image displaying apparatus for use with an endoscope including an image pick-up which picks up an endoscopic image from a living subject and produces an endoscopic-image...
5797395 Continuous cardiac output derived from arterial pressure waveform using pattern recognition  
A system and method of determining cardiac output from a cardiac pressure waveform. The pressure waveform is continuously sensed and converted into a digital data stream. When a complete beat frame...
5788642 In vivo rezero apparatus for a pressure transducer  
An in vivo rezero apparatus for a pressure transducer is disclosed. This invention includes embodiments where both sides of the pressure transducer are exposed to atmospheric pressure to rezero the...
5785652 Physical-information abnormality informing endoscope  
An apparatus for informing an operator of an abnormality of a physical information obtained from a living subject, including a physical-information obtaining device which obtains the physical...
5758657 Pressure transducer positioning system and method  
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...
5740810 One hand push button fast flush device  
A flush device for an intravenous blood pressure monitoring system has a main body which includes a continuous capillary flow channel and a fast flush channel. The continuous capillary flow channel...
5704362 Method for oscillometric blood pressure determination employing curve fitting  
A method of measuring blood pressure where a plurality of oscillometric data values are measured from a subject at a plurality pressure levels, a function curve having the shape of an oscillometric...
5701905 Guide catheter with sensing element  
A guide catheter includes a tubular body having a proximal end and a distal end. A pressure or other sensor is disposed at or near the distal end of the body, preferably having an active surface...
RE35648 Sensor guide construction and use thereof  
A sensor guide has a sensor element, an electronic unit, a signal transmitting cable connecting the sensor element to the electronic unit, a flexible tube having the cable and the sensor element...
5678557 One hand push button intraflo  
A flush device for an intravenous blood pressure monitoring system has a main body which includes a continuous flow channel and a fast flush channel. The continuous flow channel is integral with...
5653240 Method and device for measuring portal blood pressure  
A method and a device to measure portal blood pressure with an endoscope and an inflatable balloon inserted into the esophagus and positioned at the diaphragmatic hiatus. A balloon mounted over a...
5570671 Method for positioning esophageal catheter for determining pressures associated with the left atrium  
A method for positioning an esophageal catheter for determining a pressure associated with the left atrium. As a bi-polar electrode is moved up the esophagus, an electrogram is obtained at each of...
5568815 Self-powered interface circuit for use with a transducer sensor  
An interface circuit for interfacing a semiconductor transducer sensor to a patient vital signs monitor is disclosed. In one embodiment, the interface circuit includes a power supply circuit that...
5564425 Catheter with built-in-display  
The catheter for supplying fluids to or draining them from the body of a patient is provided in its tube wall with a detector device integrated in the form of a block unit. The detector device is...
5551439 Method of determining a mean pressure from a source within a body  
Non-invasive apparatus and method for obtaining a quantitative determination of mean left atrial pressure or otherwise obtaining a quantitative determination of a left atrial pressure value. A...
5551300 User-restricted passage in reusable portion of device for monitoring a physiological pressure  
A pressure monitoring apparatus for use in monitoring a physiological fluid pressure in successive patients. Three embodiments of the pressure monitoring apparatus (10, 100, 200) are disclosed,...
5517846 Electronic vacuum sensor  
A disposable electronic vacuum sensor capable of detecting a relatively low vacuum pressure of about 0.04 to 0.05 inches of water. The sensor includes a body having an LED and an opening at one...
5501227 Angioplasty apparatus facilitating rapid exchange and method  
Apparatus for introduction into the vessel of a patient comprising a guiding catheter adapted to be inserted into the vessel of the patient and a device adapted to be inserted into the guiding...
5482049 Programmable electronic blood pressure monitoring labels  
An electronic labeling and display system for displaying a user defined label created once by the user at a display monitor location and displayed at the remote sensing location and a display monitor.
5460183 Switchable filter for rezeroing an in vivo pressure sensor  
A filter for rezeroing an in-vivo pressure sensor is disclosed. The filter operates in a signal mode and a rezero mode. In the signal mode, the filter is a low pass filter which filters out noise....
5454374 Pressure-measuring method and needle system for hemodialysis  
A method and devices for measuring pressure within blood vessels used for hemodialysis and also for flow of blood into or from such blood vessels during hemodialysis. In one aspect of the method, a...
5437284 System and method for in vivo calibration of a sensor  
Calibration apparatus and method for calibrating a movable pressure sensor include the use of a stop device to establish a reference position outside the sensing movement range of a first sensor....
5423323 System for calculating compliance and cardiac hemodynamic parameters  
A catheter set (10) is used in connection with a blood flow monitor and calibration system (80) to determine the compliance C of a vessel according to the equation C=dV2/ (PE-PA), where dV2 is the...
5398692 Combination esophageal catheter for the measurement of atrial pressure  
Non-invasive apparatus and method for obtaining a quantitative determination of mean left atrial pressure or otherwise obtaining a quantitative determination of a left atrial pressure value. A...
5370123 Blood clarification apparatus  
A blood clarification device wherein a means for measuring blood pressure comprises (a) a needle-detector which is much thinner than the puncture needle and capable of being smoothly inserted into...
5353800 Implantable pressure sensor lead  
A pressure sensing lead, wherein a hollow needle extending from the distal end of the lead is coupled to a pressure transducer. The hollow needle may be coiled and adapted to be screwed into human...
5354318 Method and apparatus for monitoring brain hemodynamics  
A sensor lead for use in conjunction with an implantable monitoring or therapeutic device. The lead is provided with a V-shaped bend near its distal end, and carries a blood parameter sensor distal...
5343868 Method and apparatus for detecting artifacts in a blood pressure measuring system  
A method for detecting artifacts in a blood pressure measuring system, in particular artifacts caused by sampling or flushing in an invasive blood pressure measuring system, disables the related...
5325865 Intracranial pressure monitoring system  
A catheter assembly for measuring a fluid pressure in a body cavity includes an optical converter responsive to an electrical power source for energizing a light-emitting diode which has drift...
5304495 Method for determining flush interference in measurement of chemical and physical parameters with indwelling probe  
A system (10) for in vivo measuring chemical and physical parameters of a patient's blood includes a probe (12), a sensing system (14), and flush interference warning devices (20). The system...
5287861 Coronary artery by-pass method and associated catheter  
A coronary-bypass method uses a collapsible stent made of a biocompatible material and having an inherent spring bias tending to form the stent into a substantially tubular opened configuration....
5284138 Apparatus and method for positioning a sensor away from the blood vessel wall  
Apparatus and method for positioning a probe through a catheter wherein a sensing element on the probe is located outside the catheter but is spaced from the luminal surface of the blood vessel to...
5280789 Apparatus and method for measuring fluid pressure in a medical patient  
An apparatus for vertically aligning a given point on a pressure transducer unit with a desired point an a patient, the apparatus comprising: (a) a light source; (b) a housing adapted to contain...
5275169 Apparatus and method for determining physiologic characteristics of body lumens  
A system includes a catheter (10) having a low pressure balloon (42) at of one end thereof, a precise, low pressure, low volume fluid infusion means (41) and a pressure sensor (43). The balloon...
5271408 Hydrodynamic system for blood flow measurement  
A device for measuring blood flow in the vicinity of a catheter implanted within the vascular vessel or the heart uses hydrodynamic principles. The device has two transducers mounted at the...
5237999 Damper for pressure measuring systems  
The damper for pressure measuring systems is integrated in the body (5) or insert of a valve. Flow passages (6, 7) communicate with a compartment (9) which is sealed by a rubber-elastic diaphragm...
5218965 Apparatus for carrying a sensor in a connector for a catheter adapter  
A catheter carrying a sensor for placement in a catheter adapter has proximal and distal parts with a passage therebetween. The distal part detachably fits within a catheter adapter. The connector,...
5181516 Internal pressure measuring device using catheter with multiple lumens  
An internal pressure measuring catheter is constituted by at least three lumens which are: an internal pressure measuring lumen whose distal end is open and whose proximal end is connected to an...
5181517 Method and apparatus for the measurement of atrial pressure  
Non-invasive apparatus and method for obtaining a quantitative determination of mean left atrial pressure or otherwise obtaining a quantitative determination of a left atrial pressure value. A...
5178153 Fluid flow sensing apparatus for in vivo and industrial applications employing novel differential optical fiber pressure sensors  
An optical fiber fluid flow device is provided for in vivo determination of blood flow in arteries. The device includes a fiber optical fluid pressure measuring device having at least first and...
5168633 Pressure transducer elevation gauge  
A pressure transducer elevation gauge for determining the precise elevation of a physiologic pressure transducer in a heart catheter laboratory for determining hemodynamics, specifically relating...
5158560 Laser operating device for intracavitary surgery  
This invention relates to an intracavitary laser operating device using a laser. The device, has a catheter (2) accommodating laser light projecting fibers, a pulse laser oscillator device (1), an...
5148811 Method and apparatus for sampling blood and for monitoring blood pressure  
A source of saline solution under pressure is connected through tubing to a catheter inserted in a patient's blood vessel. A waste collection bag is connected to the tubing through a stopcock which...
5147336 Adapter kit for a catheter introducer  
An adapter kit 32 for a catheter introducer 31 wherein catheter 34 is passed into the body to transmit a medium through lumen 35 in catheter 34. Coupling means 95 is provided for compressing...
5135002 Pressure transducer compensation system  
A pressure transducer compensation system for compensating an offset and adjusting the sensitivity of the pressure transducer to a predetermined level. A reusable cable (160) connected to a...
5120313 Method for measuring blood pressure in an animal or human using a percutaneous access port  
A percutaneous access port for providing access to a selected organ in an animal which includes a base assembly and a septum assembly. The base assembly has a fluid chamber formed in a portion...
5113868 Ultraminiature pressure sensor with addressable read-out circuit  
A capactive pressure sensor suitable for making highly sensitive, low pressure measurements is disclosed. The sensor may be mounted into a 0.5 mm OD catheter suitable for multipoint pressure...
5105820 Disposable pressure transducer apparatus  
A disposable pressure transducer for measuring fluid pressure, which includes a sensor assembly in a housing. The housing includes a fluid chamber and a sensor-accommodating chamber which are...
5092339 Method and apparatus for electrically compensated measurement of cardiac output  
Cardiac output is measured using an injected substance (indicator) that changes the conducting property (electrical resistivity) of blood, provided the indicator has a different resistivity from...
5067491 Barrier coating on blood contacting devices  
A blood pressure monitoring device includes a pressure sensing element mounted or a probe tip or in a catheter tip adapted for insertion into a patient's blood stream. The element includes a...
Matches 151 - 200 out of 322 < 1 2 3 4 5 6 7 >