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7215988 |
Sensor for measuring tissue perfusion
The invention relates to a method and a sensor for measurement of tissue perfusion. The sensor is provided with a reservoir ( 4 ) for a fluid or gaseous tracer and a tracer-permeable barrier ( 3 ),...
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6718055 |
Temporal and spatial correction for perfusion quantification system
A medical imaging system includes an imaging device for producing temporally spaced image representations, a memory for storing the image representations, and a processor. The processor aligns the...
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5701904 |
Telemedicine instrumentation pack
The invention concerns a portable medical diagnostic apparatus which includes three types of data-gathering instruments: (1) visual instruments (eg, otoscope, ophthalmoscope, rhino-laryngoscope,...
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4601293 |
Temperature control system for cutaneous gas monitor
A temperature control system for an electrically heated cutaneous gas sensor. A closed loop temperature control circuit varies the current through the heating element, in accordance with the sensed...
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4539994 |
Method for transcutaneous measurement of a blood parameter and an electrochemical measuring electrode device for carrying out the method
In accordance with the principles for transcutaneous measurement of a blood parameter, such as the partial pressure of a blood gas, an electrochemical measuring electrode device (1) is applied to...
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4534356 |
Solid state transcutaneous blood gas sensors
Disclosed is a solid state oxygen sensor utilizing a noble metal first electrode and a silver/silver halide reference electrode and an oxygen permeable polymeric membrane electrolyte. Also...
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4517982 |
Sensing device for cardio-pulmonary functions
A sensor for use in detecting cardiopulmonary functions employs a skin-heating conductive surface for use in achieving vasodilitation for the measurement of PO 2 and PCO 2 . The same surface is...
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4458686 |
Cutaneous methods of measuring body substances
Cutaneous methods for measurement of substrates in mammalian subjects are disclosed. A condition of the skin is used to measure a number of important substances which diffuse through the skin or...
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4432365 |
Physiological sensing unit
Disclosed herein is a physiological, electrically heated, thermostatically controlled sensing unit of the type used in the medical field for measuring blood contents, such as oxygen. A typical unit...
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4407291 |
Transcutaneous blood oxygen measuring device
A transcutaneous blood oxygen measuring device is disclosed for the noninvasive measurement of oxygen partial pressure in arterial blood which includes a cathode surrounded by an anode held...
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4396017 |
Transcutaneous gas sensor
A transcutaneous gas sensor for application to the body surface of a patient is provided. The sensor includes a sensing electrode having an exposed surface region which, in use, is applied to the...
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4334541 |
Thermal protective circuit for a hyperemia-inducing physiological sensor
A sensor for transcutaneous measurement of physiological phenomena of living tissues is provided with a thermostatically-controlled electric heater. The purpose of the heater is to induce local...
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4312332 |
Oxygen sensing
Oxygen sensing as disclosed herein is performed by applying a solid state, self-heating sensor to the patient's skin. A noble metal cathode and a thick-film reference electrode are provided on the...
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4311151 |
Oxygen measuring electrode assembly
A polarographic electrode assembly for transcutaneous measurement of partial oxygen pressure in arterial blood comprising an anode, a cathode which has a thin ring surface or a circularly-bounded...
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4303076 |
Probe for transcutaneous sampling
A probe for transcutaneous blood gas analysis composed of a housing (10) and a cap (18) which are assembled together by a snap-fit. The housing (10) holds an electrode unit (38, 40, 42) and the cap...
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4296752 |
Transcutaneous oxygen sensor with adjacent heater
A transcutaneous gas sensor for application to the skin of a patient for bloodless measurement of a partial gas pressure comprises a separable sensing cell and a circumferential heater, the heater...
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4290431 |
Transcutaneous oxygen and local perfusion measurement
An apparatus and method for measuring and monitoring blood oxygen content and local perfusion factor. A transcutaneous gas measurement probe is heated by application of an electric current to a...
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4265250 |
Electrode
An electrode for measuring gas concentration in blood and having a disposable, skin-contact assembly installed in a reusable base; the disposable assembly includes an anode, cathode, electrolyte,...
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4252123 |
Device for the transcutaneous electrochemical determination of the partial oxygen pressure in blood
A device for the transcutaneous electrochemical determination of the partial oxygen pressure in blood, comprising a measuring head which includes at least three measuring cells of the Clark-type,...
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4197853 |
PO.sub.2 /PCO.sub.2 sensor
This invention relates to an electrochemical sensor system for the simultaneous and continuous measurement of the partial pressure of oxygen PO 2 and carbon dioxide partial pressure PCO 2 in...
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