WO2005104806A3 - Noninvasive analyzer sample probe interface method and apparatus - Google Patents

Noninvasive analyzer sample probe interface method and apparatus Download PDF

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Publication number
WO2005104806A3
WO2005104806A3 PCT/US2005/015164 US2005015164W WO2005104806A3 WO 2005104806 A3 WO2005104806 A3 WO 2005104806A3 US 2005015164 W US2005015164 W US 2005015164W WO 2005104806 A3 WO2005104806 A3 WO 2005104806A3
Authority
WO
WIPO (PCT)
Prior art keywords
sample
probe interface
sample probe
control
interface method
Prior art date
Application number
PCT/US2005/015164
Other languages
French (fr)
Other versions
WO2005104806A2 (en
Inventor
Thomas B Blank
George M Acosta
Timothy L Ruchti
Mutua Mattu
Alexander D Lorenz
Kevin H Hazen
James R Henderson
Original Assignee
Sensys Medical 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 Sensys Medical Inc filed Critical Sensys Medical Inc
Priority to EP05745415A priority Critical patent/EP1744667A4/en
Publication of WO2005104806A2 publication Critical patent/WO2005104806A2/en
Publication of WO2005104806A3 publication Critical patent/WO2005104806A3/en

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
    • 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
    • A61B5/14532—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 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, 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
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/48—Other medical applications
    • A61B5/4869—Determining body composition
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/359—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using near infrared light
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2560/00—Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
    • A61B2560/02—Operational features
    • A61B2560/0223—Operational features of calibration, e.g. protocols for calibrating sensors
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2560/00—Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
    • A61B2560/02—Operational features
    • A61B2560/0223—Operational features of calibration, e.g. protocols for calibrating sensors
    • A61B2560/0228—Operational features of calibration, e.g. protocols for calibrating sensors using calibration standards
    • A61B2560/0233—Optical standards
    • 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
    • A61B2562/02—Details of sensors specially adapted for in-vivo measurements
    • A61B2562/0233—Special features of optical sensors or probes classified in A61B5/00
    • A61B2562/0242—Special features of optical sensors or probes classified in A61B5/00 for varying or adjusting the optical path length in the tissue

Abstract

A method and apparatus are provided for noninvasive sampling. More particularly, the method and apparatus relate to control of motion of an optical sample probe interface relative to a tissue sample site. A dynamic probe interface, is used to collect spectra of a targeted sample, control positioning of the sample probe relative to the tissue sample in terms of at least one of x-, y-, and z-axes, and/or control of sample tissue displacement to minimize spectral variations resulting from the sampling process and increase analyte property estimation precision and accuracy.
PCT/US2005/015164 2004-04-28 2005-04-28 Noninvasive analyzer sample probe interface method and apparatus WO2005104806A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP05745415A EP1744667A4 (en) 2004-04-28 2005-04-28 Noninvasive analyzer sample probe interface method and apparatus

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US56656804P 2004-04-28 2004-04-28
US60/566,568 2004-04-28
US60501704P 2004-08-27 2004-08-27
US60/605,017 2004-08-27
US11/117,104 US7519406B2 (en) 2004-04-28 2005-04-27 Noninvasive analyzer sample probe interface method and apparatus
US11/117,104 2005-04-27

Publications (2)

Publication Number Publication Date
WO2005104806A2 WO2005104806A2 (en) 2005-11-10
WO2005104806A3 true WO2005104806A3 (en) 2006-07-06

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/015164 WO2005104806A2 (en) 2004-04-28 2005-04-28 Noninvasive analyzer sample probe interface method and apparatus

Country Status (3)

Country Link
US (1) US7519406B2 (en)
EP (1) EP1744667A4 (en)
WO (1) WO2005104806A2 (en)

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