Surgery: light – thermal – and electrical application – Light – thermal – and electrical application – Electrical therapeutic systems
Patent
1995-01-19
1997-05-20
Cohen, Lee S.
Surgery: light, thermal, and electrical application
Light, thermal, and electrical application
Electrical therapeutic systems
607 60, 607 62, 607 66, 607 2, 607 1, A61B 1736, A61N 137
Patent
active
056308361
ABSTRACT:
An apparatus for transcutaneously transmitting power and communication signals to an implantable device. The apparatus can include generators for power and information signals; receivers; and a coupler for independently coupling the power signal and a first information signal. An internal unit can have receivers for power and information signals; a second signal generator; and an independent coupler. The first and second information signal can be transmitted at a frequency greater than the power frequency. The external unit can also include a signal conditioner for symmetrically transceiving the first and second information signals; and an external data controller for symmetrically controlling the information signals. The internal unit can also include a voltage regulator converter; an internal signal conditioner for symmetrically transceiving the information signals; and a data controller. Symmetrically controlling can include ASK modulation of a data signal upon an RF carrier signal.
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"A Completely Implanted Left Ventricular Assist Device" by W. Weiss, G. Rosenberg, A. Synder, J. Donachy, Sr., J. Reibson, O. Kawaguchi, J. Sapirstein, W. Pae, W. Pierce, ASAIO Journal, 1993.
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Cuervo David E.
Prem Edward K.
Cohen Lee S.
Huang Stephen
Vascor Inc.
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