Patent ID: 7225025

Claim:
A method for transmitting a pacing pulse from a pulse generator to an electrode and transmitting sensor data from a sensing circuit to the pulse generator using at least one switch and a shared conductor in a cardiac stimulus device lead, wherein the lead includes the sensing circuit external to the pulse generator and the sensing circuit is adapted to prepare the sensor data for output to the pulse generator, comprising: electrically connecting the shared conductor to the electrode, electrically disconnecting the shared conductor from the sensing circuit, and transmitting the pacing pulse using the shared conductor to the electrode when the shared conductor is electrically connected to the electrode and electrically disconnected from the sensing circuit; and electrically connecting the shared conductor to the sensing circuit and electrically disconnecting the shared conductor from the electrode, and transmitting the sensor data using the sensing circuit and the shared electrode when the shared conductor is electrically connected to the sensing circuit and electrically disconnected from the electrode.