CA2260928A1 - Direct to digital oximeter - Google Patents

Direct to digital oximeter

Info

Publication number
CA2260928A1
CA2260928A1 CA002260928A CA2260928A CA2260928A1 CA 2260928 A1 CA2260928 A1 CA 2260928A1 CA 002260928 A CA002260928 A CA 002260928A CA 2260928 A CA2260928 A CA 2260928A CA 2260928 A1 CA2260928 A1 CA 2260928A1
Authority
CA
Canada
Prior art keywords
oximeter
direct
oxygen saturation
blood
digital oximeter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002260928A
Other languages
French (fr)
Other versions
CA2260928C (en
Inventor
Michael T. Larsen
James L. Reuss
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Criticare Systems Inc
Original Assignee
Criticare Systems, Inc.
Michael T. Larsen
James L. Reuss
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Criticare Systems, Inc., Michael T. Larsen, James L. Reuss filed Critical Criticare Systems, Inc.
Publication of CA2260928A1 publication Critical patent/CA2260928A1/en
Application granted granted Critical
Publication of CA2260928C publication Critical patent/CA2260928C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
    • A61B5/1455—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters
    • A61B5/14551—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters for measuring blood gases

Abstract

This invention is an oximeter for non-invasive measure of the oxygen saturation in blood with increased speed and accuracy. The device includes a sensor unit (20) which can be attached to a patient, and an oximeter (10) which determines the oxygen saturation in the blood based on signals received from the sensor (20). In the present invention, the detected signal is immediately converted to a digital value (30).
CA002260928A 1996-07-17 1997-07-17 Direct to digital oximeter Expired - Fee Related CA2260928C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/683,617 US5842981A (en) 1996-07-17 1996-07-17 Direct to digital oximeter
US08/683,617 1996-07-17
PCT/US1997/012484 WO1998002087A1 (en) 1996-07-17 1997-07-17 Direct to digital oximeter

Publications (2)

Publication Number Publication Date
CA2260928A1 true CA2260928A1 (en) 1998-01-22
CA2260928C CA2260928C (en) 2005-05-24

Family

ID=24744795

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002260928A Expired - Fee Related CA2260928C (en) 1996-07-17 1997-07-17 Direct to digital oximeter

Country Status (10)

Country Link
US (1) US5842981A (en)
EP (1) EP0955869B1 (en)
JP (1) JP2000514683A (en)
CN (1) CN1160021C (en)
AU (1) AU720111B2 (en)
BR (1) BR9710330A (en)
CA (1) CA2260928C (en)
DE (1) DE69724822T2 (en)
ES (1) ES2206740T3 (en)
WO (1) WO1998002087A1 (en)

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EP0955869B1 (en) 2003-09-10
US5842981A (en) 1998-12-01
WO1998002087A1 (en) 1998-01-22
AU3802997A (en) 1998-02-09
DE69724822T2 (en) 2004-07-01
DE69724822D1 (en) 2003-10-16
BR9710330A (en) 2000-01-11
CN1225562A (en) 1999-08-11
ES2206740T3 (en) 2004-05-16
JP2000514683A (en) 2000-11-07
EP0955869A4 (en) 2001-03-14
EP0955869A1 (en) 1999-11-17
AU720111B2 (en) 2000-05-25
CA2260928C (en) 2005-05-24
CN1160021C (en) 2004-08-04

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