In Bearbeitung

Bitte warten ...

Einstellungen

Einstellungen

Gehe zu Anmeldung

1. US4875486 - Instrument and method for non-invasive in vivo testing for body fluid constituents

Amt Vereinigte Staaten von Amerika
Aktenzeichen/Anmeldenummer 06904000
Anmeldedatum 04.09.1986
Veröffentlichungsnummer 4875486
Veröffentlichungsdatum 24.10.1989
Erteilungsnummer 4875486
Erteilungsdatum 24.10.1989
Veröffentlichungsart A
IPC
A61B 5/00
ATäglicher Lebensbedarf
61Medizin oder Tiermedizin; Hygiene
BDiagnostik; Chirurgie; Identifizierung
5Messen zu diagnostischen Zwecken; Identifizieren von Personen
A61B 5/055
ATäglicher Lebensbedarf
61Medizin oder Tiermedizin; Hygiene
BDiagnostik; Chirurgie; Identifizierung
5Messen zu diagnostischen Zwecken; Identifizieren von Personen
05Messen zu diagnostischen Zwecken mittels elektrischer Ströme oder magnetischer Felder
055unter Verwendung von Elektronenspinresonanz oder Kernspinresonanz , z.B. Kernspintomografie
G01R 33/46
GPhysik
01Messen; Prüfen
RMessen elektrischer Größen; Messen magnetischer Größen
33Anordnungen oder Instrumente zum Messen magnetischer Größen
20mit Spinresonanz
44unter Verwendung von Kernspinresonanz
46NMR Spektroskopie
G01R 33/465
GPhysik
01Messen; Prüfen
RMessen elektrischer Größen; Messen magnetischer Größen
33Anordnungen oder Instrumente zum Messen magnetischer Größen
20mit Spinresonanz
44unter Verwendung von Kernspinresonanz
46NMR Spektroskopie
465angewandt auf biologische Systeme, z.B. in-vitro-Messungen
CPC
A61B 5/6876
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Detecting, measuring or recording for diagnostic purposes
68Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
6846specially adapted to be brought in contact with an internal body part, i.e. invasive
6867specially adapted to be attached or implanted in a specific body part
6876Blood vessel
A61B 5/055
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Detecting, measuring or recording for diagnostic purposes
05Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; ; Measuring using microwaves or radiowaves
055involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
A61B 5/14532
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Detecting, measuring or recording for diagnostic purposes
145Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
14532for measuring glucose, e.g. by tissue impedance measurement
A61B 5/6826
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Detecting, measuring or recording for diagnostic purposes
68Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
6801specially adapted to be attached to or worn on the body surface
6813Specially adapted to be attached to a specific body part
6825Hand
6826Finger
A61B 5/6838
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Detecting, measuring or recording for diagnostic purposes
68Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
6801specially adapted to be attached to or worn on the body surface
683Means for maintaining contact with the body
6838Clamps or clips
A61B 5/6884
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Detecting, measuring or recording for diagnostic purposes
68Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
6846specially adapted to be brought in contact with an internal body part, i.e. invasive
6879Means for maintaining contact with the body
6884Clamps or clips
Anmelder Advanced Techtronics, Inc.
Erfinder Rapoport Uri
Panosh Richard
Vertreter Schulman Jerry A.
Sandler Ronald A.
Titel
(EN) Instrument and method for non-invasive in vivo testing for body fluid constituents
Zusammenfassung
(EN)

There is disclosed herein a nuclear magnetic resonance apparatus for testing body fluids for a constituent, for example, blood for glucose. The apparatus includes a principal magnet, a magnetizable coil, and a circuit for energizing the coil for energizing and realigning molecules and detecting changes resulting from relaxation of said field and analyzing said changes. The apparatus is compact and adapted to receive and test an extremity or vessel carrying a body fluid. The coil is constructed to be positioned adjacent the extremity or vessel to be tested. Circuit means are provided for energizing the coil to energize and realign molecules adjacent said coil, so as to permit molecules adjacent said coil to assume an aligned position and for sensing changes in position when the coil is deenergized, which is indicated by spectra having peaks corresponding to various molecular bonds. The circuit also includes means for comparing the actual value of a peak for a first constituent to a predetermined value for the peak of said first constituent and determining the actual value of a second constituent from a predetermined relationship between the values of the peaks for the first and second constituents. Specifically, predetermined water and glucose peaks are compared with the measured water and glucose peaks for determining the measured glucose concentration.