Invention Grant
- Patent Title: Drift compensation for implanted capacitance-based pressure transducer
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Application No.: US14437198Application Date: 2013-11-10
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Publication No.: US10687716B2Publication Date: 2020-06-23
- Inventor: Oren Goldshtein , Shmuel Livne
- Applicant: VECTORIOUS MEDICAL TECHNOLOGIES LTD.
- Applicant Address: IL Tel Aviv
- Assignee: VECTORIOUS MEDICAL TECHNOLOGIES LTD.
- Current Assignee: VECTORIOUS MEDICAL TECHNOLOGIES LTD.
- Current Assignee Address: IL Tel Aviv
- Agency: Kligler & Associates Patent Attorneys Ltd
- International Application: PCT/IB2013/060038 WO 20131110
- International Announcement: WO2014/076620 WO 20140522
- Main IPC: A61B5/03
- IPC: A61B5/03 ; A61B5/0215 ; A61B5/00 ; A61B5/021

Abstract:
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.
Public/Granted literature
- US20150282720A1 DRIFT COMPENSATION FOR IMPLANTED CAPACITANCE-BASED PRESSURE TRANSDUCER Public/Granted day:2015-10-08
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