Implantable system for flow measurement including charge amplifier

An implantable medical device lead having a flow measurement sensor mounted thereon is provided with a capsule mounted proximate to the sensor. The capsule is used to house electrical circuitry corresponding to the sensor in order to prevent impedance on conductors of the lead, which gradually decre...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: FEREK-PETRIC BOZIDAR, BREYER BRANKO, CINBIS CAN
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:An implantable medical device lead having a flow measurement sensor mounted thereon is provided with a capsule mounted proximate to the sensor. The capsule is used to house electrical circuitry corresponding to the sensor in order to prevent impedance on conductors of the lead, which gradually decreases over chronic periods, from directly affecting signal transmission between the sensor and the electrical circuitry. The electrical circuitry includes a charge amplifier used for processing signals from the sensor. In some cases, the amplifier can be initially calibrated and periodically tuned so as to have consistent functioning with the sensor over chronic periods.