ES2101728T3 - Determinacion no invasiva de la concentracion de glucosa en el cuerpo de un paciente. - Google Patents

Determinacion no invasiva de la concentracion de glucosa en el cuerpo de un paciente.

Info

Publication number
ES2101728T3
ES2101728T3 ES91311421T ES91311421T ES2101728T3 ES 2101728 T3 ES2101728 T3 ES 2101728T3 ES 91311421 T ES91311421 T ES 91311421T ES 91311421 T ES91311421 T ES 91311421T ES 2101728 T3 ES2101728 T3 ES 2101728T3
Authority
ES
Spain
Prior art keywords
radiation
patient
function
scattered
derivative
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.)
Expired - Lifetime
Application number
ES91311421T
Other languages
English (en)
Inventor
Russell H Barnes
Jimmy W Brasch Sr
David L Purdy
William D Lougheed
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
Application granted granted Critical
Publication of ES2101728T3 publication Critical patent/ES2101728T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/28—Investigating the spectrum
    • G01J3/42—Absorption spectrometry; Double beam spectrometry; Flicker spectrometry; Reflection spectrometry
    • G01J3/433—Modulation spectrometry; Derivative spectrometry

Abstract

UNA RADIACION CERCANA AL INFRARROJO SOBRE UNA BANDA LIMITADA DE LONGITUDES DE ONDA DE ALREDEDOR DE 1660 NANOMETROS SE PROYECTA SOBRE UNA PARTE (31) DEL CUERPO, POR EJEMPLO LA OREJA DEL PACIENTE. LA RADIACION RESULTANTE EMITIDA POR ESA PARTE DEL CUERPO, TANTO LA RADIACION DISPERSADA DESDE LA PARTE COMO LA TRANSMITIDA DESPUES DE LA ABSORCION Y DISPERSA POR LA PARTE DEL CUERPO, SE PROCESA PARA DEDUCIR UNA EXPRESION DE LA RADIACION RESULTANTE COMO FUNCION DE LA LONGITUD DE ONDA. LA SEGUNDA DERIVADA DE ESTA FUNCION SOBRE UNA BANDA MUY ESTRECHA DE ESTA FUNCION ENTRE 1640 Y 1670 NANOMETROS SE EXPANDE Y SE DETERMINA LA CONCENTRACION DE GLUCOSA A PARTIR DE LA MAGNITUD, O INTENSIDAD DE LA RADIACION DISPERSADA O TRANSMITIDA EN EL PUNTO MAXIMO O MINIMO DE ESTA DERIVADA. TAMBIEN SE PRESENTA UN APARATO PARA LA DETERMINACION NO INVASIVA DE LA CONCENTRACION DE GLUCOSA EN UN PACIENTE. LA RADIACION CERCANA DEL INFRARROJO SE TRANSMITE A TRAVES DE UN PRIMER CONDUCTOR DE LA RADIACION EN FORMA DE VIBRA OPTICA (29) HASTA LA SUPERFICIE EXTERIOR DE UNA PARTE (31) DEL CUERPO DEL PACIENTE, PENETRANDO AL INTERIOR DE ESA PARTE. UN SEGUNDO CONDUCTOR DE FIBRA OPTICA (33) TRANSMITE LA RADIACION RESULTANTE EMITIDA DESDE LA PARTE HASTA UN MEDIO DE PROCESAMIENTO DE DATOS (23) QUE PRODUCE LA SEGUNDA DERIVADA DESEADA COMO FUNCION DE LA LONGITUD DE ONDA DE LA RADIACION INCIDENTE. EL PROCESADOR INCLUYE UN ANALIZADOR DE ESPECTROS (21) QUE PRODUCE UN ESPECTRO DE LA RADIACION RESULTANTE.
ES91311421T 1990-01-30 1991-12-09 Determinacion no invasiva de la concentracion de glucosa en el cuerpo de un paciente. Expired - Lifetime ES2101728T3 (es)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US07/482,792 US5070874A (en) 1990-01-30 1990-01-30 Non-invasive determination of glucose concentration in body of patients
CA002056868A CA2056868C (en) 1990-01-30 1991-12-03 Non-invasive determination of glucose concentration in body of patient
AU88392/91A AU643855B2 (en) 1990-01-30 1991-12-04 Non-invasive determination of glucose concentration in body of patient
EP91311421A EP0548418B1 (en) 1990-01-30 1991-12-09 Non-invasive determination of glucose concentration in body of patient

Publications (1)

Publication Number Publication Date
ES2101728T3 true ES2101728T3 (es) 1997-07-16

Family

ID=27424036

Family Applications (1)

Application Number Title Priority Date Filing Date
ES91311421T Expired - Lifetime ES2101728T3 (es) 1990-01-30 1991-12-09 Determinacion no invasiva de la concentracion de glucosa en el cuerpo de un paciente.

Country Status (8)

Country Link
US (1) US5070874A (es)
EP (1) EP0548418B1 (es)
AT (1) ATE152338T1 (es)
AU (1) AU643855B2 (es)
CA (1) CA2056868C (es)
DE (1) DE69125942T2 (es)
DK (1) DK0548418T3 (es)
ES (1) ES2101728T3 (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020152380A1 (es) 2019-01-22 2020-07-30 Universidad De Sevilla Dispositivo portable y método para la estimación no invasiva del nivel de glucosa en sangre

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