CA2238958A1 - Method and apparatus for facilitating compatibility between pulse oximeters and sensor probes - Google Patents

Method and apparatus for facilitating compatibility between pulse oximeters and sensor probes

Info

Publication number
CA2238958A1
CA2238958A1 CA002238958A CA2238958A CA2238958A1 CA 2238958 A1 CA2238958 A1 CA 2238958A1 CA 002238958 A CA002238958 A CA 002238958A CA 2238958 A CA2238958 A CA 2238958A CA 2238958 A1 CA2238958 A1 CA 2238958A1
Authority
CA
Canada
Prior art keywords
wavelength
light
sensor probe
tissue sample
sensor probes
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
CA002238958A
Other languages
French (fr)
Other versions
CA2238958C (en
Inventor
Adnan I. Merchant
Kalpathi L. Venkatachalam
Michael E. Fein
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.)
Nellcor Puritan Bennett LLC
Original Assignee
Nellcor Puritan Bennett Incorporated
Adnan I. Merchant
Kalpathi L. Venkatachalam
Michael E. Fein
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 Nellcor Puritan Bennett Incorporated, Adnan I. Merchant, Kalpathi L. Venkatachalam, Michael E. Fein filed Critical Nellcor Puritan Bennett Incorporated
Publication of CA2238958A1 publication Critical patent/CA2238958A1/en
Application granted granted Critical
Publication of CA2238958C publication Critical patent/CA2238958C/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
    • 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
    • A61B5/1495—Calibrating or testing of in-vivo probes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
    • A61B2562/08—Sensors provided with means for identification, e.g. barcodes or memory chips
    • A61B2562/085—Sensors provided with means for identification, e.g. barcodes or memory chips combined with means for recording calibration data

Abstract

A sensor probe operable to transmit light of a first wavelength for scattering by a tissue sample is described for use with a pulse oximeter (310, 410) designed to operate with another type of sensor probe (302, 402) which transmits light of a second wavelength. The sensor probe (302, 402) includes at least one source of light (306, 308; 406, 408) for transmitting light of the first wavelength for scattering and/or absorption by the tissue sample. At least one detector (314, 414) is included for detecting light of the first wavelength affected by the tissue sample and generating a signal in response thereto. An encoder (420) in the sensor probe (402) transforms the signal to a form which may be employed by the oximeter.
CA002238958A 1995-12-20 1996-12-18 Method and apparatus for facilitating compatibility between pulse oximeters and sensor probes Expired - Fee Related CA2238958C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/575,256 US5807247A (en) 1995-12-20 1995-12-20 Method and apparatus for facilitating compatibility between pulse oximeters and sensor probes
US08/575,256 1995-12-20
PCT/US1996/019974 WO1997022293A1 (en) 1995-12-20 1996-12-18 Method and apparatus for facilitating compatibility between pulse oximeters and sensor probes

Publications (2)

Publication Number Publication Date
CA2238958A1 true CA2238958A1 (en) 1997-06-26
CA2238958C CA2238958C (en) 2007-03-27

Family

ID=24299553

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002238958A Expired - Fee Related CA2238958C (en) 1995-12-20 1996-12-18 Method and apparatus for facilitating compatibility between pulse oximeters and sensor probes

Country Status (7)

Country Link
US (1) US5807247A (en)
EP (1) EP0871396B1 (en)
JP (1) JP3924009B2 (en)
AU (1) AU1420797A (en)
CA (1) CA2238958C (en)
DE (1) DE69604700T2 (en)
WO (1) WO1997022293A1 (en)

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Also Published As

Publication number Publication date
EP0871396A1 (en) 1998-10-21
US5807247A (en) 1998-09-15
WO1997022293A1 (en) 1997-06-26
DE69604700T2 (en) 2000-05-31
CA2238958C (en) 2007-03-27
JP2000502270A (en) 2000-02-29
DE69604700D1 (en) 1999-11-18
AU1420797A (en) 1997-07-14
EP0871396B1 (en) 1999-10-13
JP3924009B2 (en) 2007-06-06

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