WO1997030629A1 - Method and apparatus for non-invasive blood glucose sensing - Google Patents

Method and apparatus for non-invasive blood glucose sensing Download PDF

Info

Publication number
WO1997030629A1
WO1997030629A1 PCT/US1997/002610 US9702610W WO9730629A1 WO 1997030629 A1 WO1997030629 A1 WO 1997030629A1 US 9702610 W US9702610 W US 9702610W WO 9730629 A1 WO9730629 A1 WO 9730629A1
Authority
WO
WIPO (PCT)
Prior art keywords
patient
skin
sensor head
blood glucose
forearm
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.)
Ceased
Application number
PCT/US1997/002610
Other languages
English (en)
French (fr)
Inventor
John S. Griffith
Patrick J. Cooper
Todd Q. Barker
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.)
Diasense Inc
Original Assignee
Diasense Inc
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 Diasense Inc filed Critical Diasense Inc
Priority to EP97908681A priority Critical patent/EP0955867A1/en
Priority to AU20529/97A priority patent/AU2052997A/en
Priority to US09/125,600 priority patent/US6088605A/en
Publication of WO1997030629A1 publication Critical patent/WO1997030629A1/en
Anticipated expiration legal-status Critical
Ceased 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
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
    • A61B5/6813—Specially adapted to be attached to a specific body part
    • A61B5/6824—Arm or wrist
    • 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 or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue
    • A61B5/14532—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue for measuring glucose, e.g. by tissue impedance measurement
    • 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 or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue
    • A61B5/1455—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue using optical sensors, e.g. spectral photometrical oximeters

Definitions

  • the arm tray 10 further includes a cutout portion 11 in a central region thereof to permit the sensor head 8 to directly contact the skin of the patient's forearm.
  • Appropriate control means and logic located in the electronics package of the monitor 2 cause periodic activation of the stepper motor 20 to cause movement of the arm tray relative to the sensor head 8 in a controlled incremental manner so that individual blood glucose measurements can be made in a predetermined array of repeated short and long increments along a longitudinal axis of the patient's forearm, for example, along a total length of 3 1/2". The measurements are then averaged to obtain an accurate glucose measurement which takes into account the variations in the biological components of the skin which may differ from point-to-point over the given measurement field.
  • the movement of the arm tray is adjustable so that the arm movement pattern relative to the sensor head is adjustable and can thus be optimized for each patient.
  • the arm tray 10 is configured to receive a patient's forearm in a resting mode thereon to position the underside or hairless area of the patient's forearm over the sensor head 8.
  • the sensor head 8 is operably coupled to the electronic means of the apparatus.
  • the arm tray 10 is mounted on the linear bearings 14 to permit smooth and accurate movement of the patient's resting forearm over the sensor head 8 along the longitudinal axis of the forearm.
  • the sensor head 8 is fixed relative to the longitudinal axis of the forearm and extends upwardly through the opening 11 in the tray to directly contact the patient's skin when glucose sensing measurements are made.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Medical Informatics (AREA)
  • Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Biophysics (AREA)
  • Molecular Biology (AREA)
  • Pathology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Optics & Photonics (AREA)
  • Emergency Medicine (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
PCT/US1997/002610 1996-02-23 1997-02-21 Method and apparatus for non-invasive blood glucose sensing Ceased WO1997030629A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP97908681A EP0955867A1 (en) 1996-02-23 1997-02-21 Method and apparatus for non-invasive blood glucose sensing
AU20529/97A AU2052997A (en) 1996-02-23 1997-02-21 Method and apparatus for non-invasive blood glucose sensing
US09/125,600 US6088605A (en) 1996-02-23 1997-02-21 Method and apparatus for non-invasive blood glucose sensing

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US1230596P 1996-02-23 1996-02-23
US60/012,305 1996-02-23

Publications (1)

Publication Number Publication Date
WO1997030629A1 true WO1997030629A1 (en) 1997-08-28

Family

ID=21754343

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1997/002610 Ceased WO1997030629A1 (en) 1996-02-23 1997-02-21 Method and apparatus for non-invasive blood glucose sensing

Country Status (4)

Country Link
US (1) US6088605A (https=)
EP (1) EP0955867A1 (https=)
AU (1) AU2052997A (https=)
WO (1) WO1997030629A1 (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6163154A (en) * 1997-12-23 2000-12-19 Magnetic Diagnostics, Inc. Small scale NMR spectroscopic apparatus and method

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US7890158B2 (en) 2001-06-05 2011-02-15 Lumidigm, Inc. Apparatus and method of biometric determination using specialized optical spectroscopy systems
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US6816605B2 (en) 1999-10-08 2004-11-09 Lumidigm, Inc. Methods and systems for biometric identification of individuals using linear optical spectroscopy
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Cited By (2)

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Publication number Priority date Publication date Assignee Title
US6163154A (en) * 1997-12-23 2000-12-19 Magnetic Diagnostics, Inc. Small scale NMR spectroscopic apparatus and method
US6404197B1 (en) 1997-12-23 2002-06-11 Magnetic Diagnostic, Inc. Small scale NMR spectroscopic apparatus and method

Also Published As

Publication number Publication date
AU2052997A (en) 1997-09-10
EP0955867A1 (en) 1999-11-17
US6088605A (en) 2000-07-11
EP0955867A4 (https=) 1999-11-17

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