Class 600/363 - Perfusion detection

Subclass of Class 600 - Surgery
Definition: Subject matter wherein means are provided to measure or
No. of patents: 29
Last issue date: 03/13/2012

Number	Title	Issue Date
8133177	System and method for assessing capillary vitality A device for assessing capillary vitality comprises an inflatable cuff, a blood flow sensor and a pressure sensor in communication with the cuff, a pressure instrument in fluid communication with the cuff for inflation and deflation thereof, a microprocessor coupled...	03/13/2012
7981033	Diagnostic probe and kit for tonometric examination of respiratory insufficiency and regional perfusion failure of the body The invention relates to a tonometric device (20) for examination of respiratory insufficiency and regional tissue perfusion failure in patients, comprising a distal end (22), a section (24) to be introduced into the body, and a fixing part (...	07/19/2011
7736311	System for automated measurement of skin perfusion pressure An automatic skin perfusion measuring system including instrumentation that automatically analyzes perfusion measurements to identify motion artifact and SPP values and a sensor placement device is provided. The instrumentation is configured to ignore motion artifac...	06/15/2010
7335161	Techniques for blood pressure measurement by implantable device An implantable cardiac device is configured and programmed to collect blood pressure waveforms from one or more implantable pressure sensors. Techniques are described for extracting features and reducing noise in the pressure waveforms by averaging waveforms which a...	02/26/2008
7310548	Method of magnetic resonance perfusion imaging The present invention relates to a method of perfusion imaging comprising: performing a first magnetic resonance data acquisition (A) at a first sensitivity (b) value, performing a set of at least six second magnetic resonance data acquisitions (B1, B	12/18/2007
7229410	Method and device for determining a characteristic value for the perfusion of modified tissue regions in organs of living beings A method and a device are used for determining a characteristic value for the perfusion of modified, in particular pigmented tissue regions in organs of living beings, for example the skin. By means of a laser flowmeter, a first volumetric flow rate and a second vol...	06/12/2007
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), a sub-surface of which is in contact with the surrounding ...	05/08/2007
7169600	Device for determining a glucose concentration in a tissue fluid The invention concerns an arrangement for determining the concentration of glucose in a tissue fluid. In the microdialysis technology used for this purpose, perfusate-containing glucose is transported in intermittent delivery pulses through a microdialysis probe ins...	01/30/2007
7156824	System and method for delivering thermally sensitive and reverse-thermal gelation materials A catheter for injecting a thermally sensitive gelation material to remote sites within a patient's body by maintaining the thermally sensitive gelation material in a liquid state until it is delivered to a target area within the body. ...	01/02/2007
7097618	Devices and methods for detecting and treating inadequate tissue perfusion Devices and methods for detecting inadequate tissue perfusion by measuring a parameter other than heart rate such as vascular blood pressure, intracardiac blood pressure, vascular blood flow or tissue perfusion, in addition to or as a substitute for heart rate. Such...	08/29/2006
7070569	Non-invasive determination of conditions in the circulatory system of a subject A method for non-invasively determining functional cardiac output (FCO) and/or venous blood CO2 partial pressure (PvCO2). The amount of CO2 (VCO2N) released from the blood and end capillary blood CO2 ...	07/04/2006
6929618	Microdialysis probe A microdialysis probe includes a dialysis membrane located and supported between a closed distal end of the probe and a proximal end of the same, the membrane essentially surrounding a space for passage of perfusion liquid. The probe has an inlet and outlet for perf...	08/16/2005
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 image representations by iteratively deriving a transform between pro...	04/06/2004
6632183	Perfusion sensitive biopsy extractor A technique for quantifying perfusion and removing a biopsy sample at a site in a living body wherein an instrument having a perfusion sensor is introduced into the body at a site to be investigated to there interrogate the tissue. The biopsy specimen is ...	10/14/2003
6488623	Skin perfusion evaluation apparatus The disclosure relates to a device for determining perfusion capacity in a region of a patient's skin and underlying tissue utilizing a thermoelectric device to create a temperature differential, a sensor for measuring the temperature differential, a cont...	12/03/2002
6248066	Skin perfusion evaluation apparatus An apparatus for evaluating perfusion adjacent a skin surface includes a housing having first an second interior regions. The housing is configured to engage the skin surface. The apparatus also includes a plunger located in the first region of the housin...	06/19/2001
6183418	Process and measuring system for detection of substances emitted or perspired through the skin The process for detection and for quantitative determination of substances emitted or perspired through the skin is derived from flow diffusion analysis. The measuring system conceived for this purpose uses a diffusion half cell through which an acceptor ...	02/06/2001
6013029	Monitoring the concentration of a substance or a group of substances in a body fluid The concentration of a substance or group of substances in a body fluid is monitored by means of an interface held in contact with a living human or animal body and a detector is positioned downstream from the interface. A profusion fluid is passed from t...	01/11/2000
6010455	Skin perfusion evaluation apparatus An apparatus for evaluating perfusion adjacent a skin surface includes a housing having first and second interior regions. The housing is configured to engage the skin surface. The apparatus also includes a plunger located in the first region of the housi...	01/04/2000
5579763	Measurement of systemic perfusion A method is described for assessing perfusion failure of a patient by measurement pCO2 (partial pressure of carbon dioxide) in the digestive system of the patient. The method includes introducing a catheter (10, FIG. 1) through the nasal passag...	12/03/1996
5551425	Potential difference and perfusion pressure catheter A perfusion catheter is designed to be used both as an exploring catheter for measuring potential difference across the gastrointestinal wall and for simultaneous measurement of pressure at the same site. The catheter includes a perfusion lumen into which...	09/03/1996
4848349	Substance and method for measuring hepatic blood flow The invention discloses a new class of compounds, namely fluorescently labelled bile acids, as well as processes for their production. These compounds may be used for diagonistic and research purposes in humans and animals. The fluorescently labelled bile...	07/18/1989
4821732	Method for monitoring fetal-material circulation time A method of monitoring fetal and maternal circulatory times as an indicator of fetal distress, involving the detection and measurement of the concentration of a gas transdermally diffused through the skin of the mother and the fetus, subsequent to inhalat...	04/18/1989
4671287	Apparatus and method for sustaining vitality of organs of the gastrointestinal tract Medical treatment apparatus and method for sustaining the vitality of an organ in the gastrointestinal tract by catheterization including improvements in catheter placement, ischemia detection, and oxygenation is disclosed. In one embodiment, the catheter...	06/09/1987
4608990	Measuring skin perfusion A fluorometer and method of fluorometry for illuminating an area containing fluorescent material which material fluoresces when excited with light energy at first particular frequencies and for collecting and measuring fluorescent light energy at second p...	09/02/1986
4585007	Method for continuously measuring a specified ingredient in a diluted liquid A method for accurately performing concentration measurements while compensating the dilution ratio as needed during continuous measurement of specified ingredient in the liquid to be tested. The liquid to be tested is diluted by a diluent, wherein the li...	04/29/1986
4450841	Stroke treatment utilizing extravascular circulation of oxygenated synthetic nutrients to treat tissue hypoxic and ischemic disorders A novel acute care cerebral support system and method for treating severly ischemic brains is disclosed wherein an oxygenated nutrient emulsion is circulated through at least a portion of the ventriculo-subarachnoid spaces. The nutrient emulsion contains ...	05/29/1984
4445515	Apparatus for performing tissue perfusion measurements Apparatus and method are disclosed for monitoring the perfusion rate of a liquid through the tissue of a living animal. The apparatus and method involve contacting the tissue with an electrode probe and at least one sensor probe at a predetermined spaced ...	05/01/1984
4445514	Extravascular circulation of oxygenated synthetic nutrients to treat tissue hypoxic and ischemic disorders A novel system and method for treating ischemic neurologic tissue is disclosed wherein an oxygenated nutrient emulsion is circulated through at least a portion of the cerebospinal pathway. The nutrient emulsion contains an oxygenatable non-aqueous compone...	05/01/1984

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Class 600/363 - Perfusion detection