Implantable electronic stimulator having isolation transformer input to telemetry circuits

摘要

An implantable medical device for applying electrical stimulating pulses to body tissue in which the device includes a hermetically sealed metal housing that contains the stimulating pulse delivery circuitry as well as a telemetry transmitter and telemetry receiver and where the metal housing serves as a return electrode. An isolation transformer is operatively coupled between an antenna/coil used to receive and transmit information from and to an external programmer device and the telemetry receiver and telemetry transmitter within the implanted device. The isolation transformer effectively precludes high voltage stimulating pulses from causing damage to the telemetry circuit components.