Pacemaker with Hall effect externally controlled switch
First Claim
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1. A body-implantable pulse generator for providing stimulating pulses to living tissue, comprising:
- means for generating said stimulating pulses;
a semiconductor;
means for causing an electrical current flow through said semiconductor;
means for detecting a voltage produced in said semiconductor in a direction perpendicular to the direction of said current flow; and
means responsive to said means for detecting for controlling said means for generating in response to an externally applied magnetic field.
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Abstract
A body implantable cardiac pacemaker having a Hall effect switch which may be activated by a magnetic field in order to alter one or more pacemaker characteristics. A circuit in the pacemaker produces a strobe signal which is used to turn on a current flow through the Hall effect element once each pacemaker pulse cycle for a period of 25μ sec. The Hall effect element is part of an integrated circuit and is oriented in a plane parallel to the broad plane of the pacemaker.
40 Citations
8 Claims
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1. A body-implantable pulse generator for providing stimulating pulses to living tissue, comprising:
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means for generating said stimulating pulses; a semiconductor; means for causing an electrical current flow through said semiconductor; means for detecting a voltage produced in said semiconductor in a direction perpendicular to the direction of said current flow; and means responsive to said means for detecting for controlling said means for generating in response to an externally applied magnetic field. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification