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1. (WO2007007217) AN APPARATUS, A SYSTEM AND A METHOD FOR ENABLING AN IMPEDANCE MEASUREMENT
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2007/007217 International Application No.: PCT/IB2006/052153
Publication Date: 18.01.2007 International Filing Date: 28.06.2006
IPC:
G01R 27/02 (2006.01) ,A61B 5/053 (2006.01)
G PHYSICS
01
MEASURING; TESTING
R
MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
27
Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
02
Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
5
Measuring for diagnostic purposes; Identification of persons
05
Measuring for diagnosis by means of electric currents or magnetic fields
053
Measuring electrical impedance or conductance of a portion of the body
Applicants:
PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH [DE/DE]; Lübeckertordamm 5 20099 Hamburg, DE (DE)
KONINKLIJKE PHILIPS ELECTRONICS N. V. [NL/NL]; Groenewoudseweg 1 NL-5621 BA Eindhoven, NL (AE, AG, AL, AM, AT, AU, AZ, BA, BB, BE, BF, BG, BJ, BR, BW, BY, BZ, CA, CF, CG, CH, CI, CM, CN, CO, CR, CU, CY, CZ, DK, DM, DZ, EC, EE, EG, ES, FI, FR, GA, GB, GD, GE, GH, GM, GN, GQ, GR, GW, HN, HR, HU, ID, IE, IL, IN, IS, IT, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MC, MD, MG, MK, ML, MN, MR, MW, MX, MZ, NA, NE, NG, NI, NL, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SI, SK, SL, SM, SN, SY, SZ, TD, TG, TJ, TM, TN, TR, TT, TZ, UA, UG, UZ, VC, VN, ZA, ZM, ZW)
WAFFENSCHMIDT, Eberhard [DE/DE]; DE (UsOnly)
IGNEY, Claudia [DE/DE]; DE (UsOnly)
BRAUERS, Andreas [DE/DE]; DE (UsOnly)
Inventors:
WAFFENSCHMIDT, Eberhard; DE
IGNEY, Claudia; DE
BRAUERS, Andreas; DE
Agent:
VOLMER, Georg; Philips Intellectual Property & Standards Gmbh Weisshausstr. 2 52066 Aachen, DE
Priority Data:
05106402.013.07.2005EP
Title (EN) AN APPARATUS, A SYSTEM AND A METHOD FOR ENABLING AN IMPEDANCE MEASUREMENT
(FR) APPAREIL, SYSTEME ET PROCEDE PERMETTANT DE MESURER UNE IMPEDANCE
Abstract:
(EN) The invention relates to an apparatus (1) for impedance measurement of an external substance, said apparatus comprising a plurality of resonant circuits with respective coil elements (3a, 3b, 3c, 3d) and respective capacitive elements (5a, 5b, 5c, 5d), said resonant circuits operating at different resonant frequencies. The signals (Sl, S2, S3, S4) from the resonant circuits are detected by an ampere meter (6). The power loss experienced by the resonant circuits due to an electromagnetic interaction with a conductive body is reflected in a change in the magnitude of respective signals. By detecting the signal (Sl, S2, S3 or S4), the power loss by the resonant circuit is determined. The resonant circuit is preferably integrated into an insulating fabric carrier (2). The invention further relates to a vital sign measurement system and a method of enabling an impedance measurement.
(FR) Cette invention concerne un appareil (1) permettant de mesurer l'impédance d'une substance externe, lequel appareil comprend une pluralité de circuits résonants comportant les éléments de bobine respectifs (3a, 3b, 3c, 3d) et les éléments capacitifs respectifs (5a, 5b, 5c, 5d), lesquels circuit résonants fonctionnent à différentes fréquences de résonance. Les signaux (S1, S2, S3, S4) émis par les circuits résonants sont détectés par un ampèremètre (6). La perte de puissance subie par les circuits résonants en raison d'une interaction électromagnétique avec un corps conducteur se traduit par une variation de l'amplitude de signaux correspondants. On peut déterminer la perte de puissance du circuit résonant en détectant le signal (S1, S2, S3 ou S4). Le circuit résonant est de préférence intégré dans un support de tissu isolant (2). Cette invention concerne également un système de mesure de signes vitaux et un procédé permettant de mesurer l'impédance.
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Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, LV, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP1904860JP2009501040US20080218180CN101218513IN176/CHENP/2008