Implantable heart pacemaker with a sensor for inertial and/or rotational movements of the user
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United States of America Patent
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Sep 26, 1989
Issued Date -
N/A
app pub date -
May 11, 1988
filing date -
Jul 15, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A pacemaker has a sensor for deteching inertial and/or rotational movements of a patient in whom the pacemaker is implanted. The sensor has a hollow member with at least one freely moveable member therein, the freely moveable member generating a mechanical vibration upon movement thereof within the hollow member caused by movement or rotation of the patient. A transducer generates an electrical signal corresponding to the mechanical vibrations, the electrical signal being proportional to the movement. This electrical signal is used to vary the rate at which stimulation pulses are supplied to the patient by the pacemaker.
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