Implantable measuring device, particularly a pressure measuring device for determining the intracardial or intraluminal blood pressure

摘要

An implantable pressure measuring device comprises a preferably catheter-like main body (2) that can be positioned in the given body cavity (4), a pressure-sensitive sensor (5) on the main body (2), a signal line (13) coupled to the sensor for transmitting to a measuring signal evaluation unit (14) of the measuring device the measuring signals generated by the sensor (5) corresponding to the detected pressure, and a cleaning element (6) coupled to the sensor (5) in the form of a piezoelectric actuator that can be set in vibrations by electrical excitation via supply lines (13), said vibrations being transferable to the sensor (5) for the removal of deposits.