U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Bizarre Patents

Patent No. 5823572

Self Defense Weapon With Memo

A self defense weapon formed as a memo pad and which is easily held by a person's fingers, therefore making it possible to provide protection from a mugger and also to quickly and easily write a record or a message without failure of missing or forgetting significant information under a stressful situation.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 600/311 - Partial pressure of constituent


Subclass of Class 600 - Surgery
Definition: Subject matter wherein the light means directed on or through
No. of patents: 37
Last issue date: 11/27/2007


NumberTitleIssue Date
7300408Spectroscopic breath analysis
Methods and apparatus for the analysis of exhaled breath by spectroscopy are disclosed. An optical cavity containing the exhaled breath, typically comprising a pair of opposing high reflectivity mirrors, is used to implement a cavity enhanced absorbtion technique. P...
11/27/2007
7274955Parameter compensated pulse oximeter
A monitor has a primary input responsive to a first property of a tissue site. An uncompensated measurement is determinable from the primary input. A parameter input is responsive to a second property associated with the tissue site, where the first property is depe...
09/25/2007
7267671Surgical drain with sensors for monitoring fluid lumen
Devices and methods of using a surgical drain, and more particularly to a surgical drain having at least one sensor for monitoring and/or recording the condition of the anatomical site or fluid emitted from the site where the surgical drain is placed. Modifications ...
09/11/2007
7264616Method of utilizing a surgical drain with sensors for monitoring internal tissue condition
The present invention is directed to devices and methods of using a surgical drain, and more particularly to a surgical drain having at least one sensor for monitoring and/or recording the condition of the anatomical site or fluid emitted from the site where the sur...
09/04/2007
7248906Method and device for monitoring analyte concentration by optical detection
A method and device are provided for the determination of the concentration of compounds in body tissue. The method utilises optical methods based on the interaction of light with compounds, whereby the concentration of the compound under analysis is determined. The...
07/24/2007
7247143Bladder-based cuff for measuring physiological parameters and method of measuring physiological parameters using same
A cuff for measuring volume and change in volume of a body appendage includes a hollow, rigid tube having an inner surface; and a bladder having an inner surface and an outer surface, the ends of the bladder being sealed to the ends of the tube to create an enclosed...
07/24/2007
7147606Urinary diagnostic system having a retrievable sensing device
A diagnostic system is disclosed. The diagnostic system comprises a sensing device having a retrieval wire. The sensing device is configured to collect data. The system also includes a deployable housing that has a body defining an interior and an exterior. The hous...
12/12/2006
7039454Biological optical measuring instrument
A biological optical measuring instrument comprising a measuring probe (101) for collecting light from a plurality of portions of a subject (214) transmitted through the subject (214) by means of an optical fiber (108) by guiding light em...
05/02/2006
7025716Intraluminal radiation treatment system
A transfer device and catheter assembly for the delivery of treatment elements to a selected location within the intraluminal passageways of a patient as part of an intraluminal radiation system. The transfer device includes a gate member that permits the treatment ...
04/11/2006
7018336Implantable sensor flush sleeve
A apparatus and method for cleaning a sensor tip of an implantable sensor includes a flush sleeve directed towards the sensor tip, a fluid conduit in fluid communication with the flush sleeve, where fluid injected into a first end of a flush sleeve surrounding the s...
03/28/2006
6997880Waveform interpreter for respiratory analysis
A capnograph which performs an analysis of the breath waveforms measured by the carbon dioxide sensor, interprets the results of this analysis, and outputs to the operator diagnostic information about the respiratory status of the patient, or about the adequacy of t...
02/14/2006
6901281Method of magnetic resonance imaging
The invention provides a method of magnetic resonance imaging of regional blood oxygenation which comprises administering into the vasculature of a vascularized human or non-human animal subject a T2 blood pool contrast agent, detecting a magnetic resonan...
05/31/2005
6334064Remote sensing tonometric catheter apparatus and method
A tonometric device for use in hollow viscus tonometry and remote sensing of patient fluid parameters is disclosed in combination with a secondary apparatus, such as a urinary catheter, a nasogastric sump apparatus, or a feeding tube, for example. The dev...
12/25/2001
6248080Intracranial monitoring and therapy delivery control device, system and method
An implantable medical device having an hermetically sealed enclosure housing electrical and electronic circuitry and a battery for powering such circuitry is connected to an intracranial lead or pigtail which measures or senses intracranial physiologic s...
06/19/2001
5997540High efficiency external counterpulsation apparatus and method for controlling same
The present invention provides a high efficiency external counterpulsation apparatus having accurate and reliable timing of inflation and deflation and reduced temperature of the pressurized gas, such that the gas flow temperature of the balloons is near ...
12/07/1999
5676140Non-invasive blood pressure measurement device
A non-invasive blood pressure measurment device including: a cuff, a pressure detector for detecting a cuff pressure; a cuff pressure control pump for linearly increasing or decreasing the cuff pressure; a light-emitting member for injecting a beam of lig...
10/14/1997
5554103High efficiency external counterpulsation apparatus and method for controlling same
The present invention provides a high efficiency external counterpulsation apparatus having accurate and reliable timing of inflation and deflation and reduced temperature of the pressurized gas, such that the gas flow temperature of the balloons is near ...
09/10/1996
5515864Method and apparatus for the in vivo measurement of oxygen concentration levels by the indirect determination of fluoescence lifetime
Methods are described for the in vivo topographic determination of tissue and bodily fluid oxygen concentration or PO2 within an imaged tissue, as well as a method for measuring blood or bodily fluid PO2 with a fiber optic catheter. ...
05/14/1996
5422478Fiberoptic pressure sensor having drift correction means for insitu calibration
An improved intensity-encoded fiber optic sensor incorporating novel drift correction and filtering means is disclosed. The first embodiments of the invention relate to means for removing unwanted higher-order core and cladding modes from an intensity-enc...
06/06/1995
5353792Sensing device
In order to simultaneously determine the concentrations of different analytes in several places in a tissue by means of a thin, biocompatible tube or cannula which is inserted into the tissue, the tube is provided with several areas along its length which...
10/11/1994
5284139Hemometrix temperature compensation
A method for converting a value for the partial pressure of oxygen (pO2) in blood at a measurement temperature to a corresponding value at a reference temperature (37° C.). A value for pO2 is determined by measurements made in a pat...
02/08/1994
5279793Optical osmometer for chemical detection
A fiber optic optical osmometer (50) includes a fiber optic probe (20) inserted into a chamber (24) including a filter member (10 ) and a diaphragm (14) responsive to a pressure change in the chamber. The filter member transmits a fluid including an analy...
01/18/1994
5251633Optical probe
An improved optical probe for the invasive measurement of partial carbon dioxide pressures is disclosed that minimizes pCO2 reading drift. An optical probe for the invasive measurement of the partial carbon dioxide pressure comprises an optical...
10/12/1993
5234835Precalibrated fiber optic sensing method
A precalibrated sensing system for determining a blood parameter such as the partial pressures of oxygen (pO2) and carbon dioxide (pCO2), and the negative logarithm of hydrogen ion activity (pH). A dry sensor is provided which may be...
08/10/1993
5190039Apparatus and method for monitoring body organs
An apparatus and a method for non-invasively measuring oxygen partial pressure in a living body in which light is thrown on a living body to be measured, the oxygen saturation of the living body is obtained from the light absorption spectrum or light scat...
03/02/1993
5125058Fiber optic connection and method of measuring intravascular pressure using same
The present invention relates to a fiber optic connection (1) between a sensor-guide portion (2) comprising an optic fiber (4) arranged in an air channel, said optic fiber (4) leading to a sensor element in the farther end of said sensor-guide portion (2)...
06/23/1992
5058416Apparatus for the determination of the partial pressure of gases dissolved in a fluid
An apparatus for determining the partial pressure of a gas dissolved in a fluid which includes a catheter consisting of a double bored coaxial catheter having an outer tube and a spaced coaxial inner tube, the outer tube being permeable to the gas being m...
10/22/1991
5048525Blood parameter measurement system with compliant element
An assembly for the measurement of a blood parameter comprising a catheter having a lumen extending therethrough and a sensor mounted in the lumen. A conduit couples the lumen to a source of anti-clotting solution, and a compliant element is coupled to th...
09/17/1991
5039492Optical pH and gas concentration sensor
An optical pH sensor and a gas sensor utilizing the pH sensor. The pH sensor includes an indicator whose absorbance is a function of the concentration of hydronium ions in a media surrounding the indicator. Light transmitted and reflected through the indi...
08/13/1991
5039491Optical oxygen sensor
An oxygen sensor contains an indicator whose change in absorption is a function of the concentration of oxygen in a sample bathing the indicator. Light transmitted and reflected through the indicator of the sensor undergoes an absorption that is character...
08/13/1991
5020537Measuring probe
A measuring probe for the invasive measurement of blood parameters such as pH, pO2 or pCO2 comprises one or more optical fibers in a tubing. These optical fibers end up in sensors which are surrounded by a sheath. An additional wire ...
06/04/1991
5005576Optical probe
Optical probes for the invasive measurement of blood parameters consist of at last one sensor, each of these sensors having a diffusion zone with a selective membrane. The sensor or the sensors are surrounded by a stabilizing sheath. This sheath is to be ...
04/09/1991
4934369Intravascular blood parameter measurement system
A parameter of blood is sensed in vivo with a system which includes a catheter and a probe. The catheter has a lumen extending therethrough, a proximal end, a distal end and a distal opening at the distal end. The probe includes one or more sensors at its...
06/19/1990
4844871Method of determining the partial pressure of gases in blood and an apparatus for performing the method
A method and an apparatus are described for determining the partial pressures of gases in blood, in which a membrane filter is used to separate plasma which passes to a blood gas analyzer....
07/04/1989
4813423Instrument for measuring living body components
Disclosed is an instrument for measuring living body components, which has (i) a fine tube having at one end thereof a connection portion to be connected to an indwelling needle or indwelling catheter and an infusion portion, from which at least a blood a...
03/21/1989
4800886Sensor for measuring the concentration of a gaseous component in a fluid by absorption
Apparatus and methods are provided for determining the concentration of a gaseous component in a fluid. A solid body of a natural or synthetic high polymer, which is permeable to the gaseous component, is exposed to the fluid, the polymer is exposed to in...
01/31/1989
4201222Method and apparatus for in vivo measurement of blood gas partial pressures, blood pressure and blood pulse
An optical catheter including an absorption chamber and distensible semipermeable diaphragm are disclosed for the simultaneous measurement of blood gases, blood pressure and pulse rate....
05/06/1980
 
Sign InRegister
Username  
Password   
forgot password?