Global Patent Index - EP 2919646 B8

EP 2919646 B8 20190612 - DRIFT COMPENSATION FOR IMPLANTED CAPACITANCE-BASED PRESSURE TRANSDUCER

Title (en)

DRIFT COMPENSATION FOR IMPLANTED CAPACITANCE-BASED PRESSURE TRANSDUCER

Title (de)

DRIFTKOMPENSATION FÜR IMPLANTIERTE KAPAZITIVE DRUCKWANDLER

Title (fr)

COMPENSATION DE DÉRIVE POUR TRANSDUCTEUR DE PRESSION À BASE DE CAPACITÉ IMPLANTÉ

Publication

EP 2919646 B8 20190612 (EN)

Application

EP 13855953 A 20131110

Priority

  • US 201261726022 P 20121114
  • IB 2013060038 W 20131110

Abstract (en)

[origin: WO2014076620A2] A method includes, in a living organ (28) in which an ambient pressure varies as a function of time, sensing the ambient pressure using a pressure sensor (36, 90, 174), which has a capacitance that varies in response to the ambient pressure, so as to produce a time-varying waveform. A calibration voltage, which modifies the capacitance and thus the time-varying waveform, is applied to the pressure sensor. The time-varying waveform is processed so as to isolate and measure a contribution of the calibration voltage to the waveform. A dependence of the capacitance on the ambient pressure is calibrated using the measured contribution of the calibration voltage.

IPC 8 full level

A61B 5/021 (2006.01); A61B 5/0215 (2006.01); A61B 5/03 (2006.01); G01L 7/00 (2006.01); G01L 9/12 (2006.01); G01L 25/00 (2006.01); A61B 5/00 (2006.01)

CPC (source: EP US)

A61B 5/02133 (2013.01 - US); A61B 5/0215 (2013.01 - EP US); A61B 5/02156 (2013.01 - US); A61B 5/036 (2013.01 - US); A61B 5/6869 (2013.01 - EP US); A61B 5/0031 (2013.01 - EP US); A61B 2560/0223 (2013.01 - EP US); A61B 2560/0228 (2013.01 - US); A61B 2562/0247 (2013.01 - EP US); A61B 2562/028 (2013.01 - EP US)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

WO 2014076620 A2 20140522; WO 2014076620 A3 20140724; EP 2919646 A2 20150923; EP 2919646 A4 20160629; EP 2919646 B1 20190410; EP 2919646 B8 20190612; JP 2016502660 A 20160128; JP 6178424 B2 20170809; US 10687716 B2 20200623; US 2015282720 A1 20151008

DOCDB simple family (application)

IB 2013060038 W 20131110; EP 13855953 A 20131110; JP 2015541286 A 20131110; US 201314437198 A 20131110