Activity sensor for a heart pacemaker
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United States of America Patent
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Jan 23, 1990
Issued Date -
N/A
app pub date -
Apr 28, 1989
filing date -
Sep 30, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An activity sensor wherein a piezoelement of the flexural type is employed. The activity sensor avoids a depolarization even given great mechanical stresses and simplifies the contacting of such a sensor regardless of the surfaces to which it is applied. It is provided in accord with the invention that the piezoelement is composed of two individual or inter-related piezoceramic parts arranged side-by-side which are oppositely polarized and are provided with electrodes on both sides. On one side, the electrodes are electrically connected to one another and, on the other side, are connected to terminals.
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Family
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