Patent ID: 8521287
Filing Date: 2013-08-27
Classification: A61N

Abstract:
1. A constant current type electrode driver for an implant for a human or animal body, the electrode driver comprising: a driver controller adapted to be implanted within a body to generate anodic and cathodic stimulation switching signals and generate an output current defining a current amplitude for stimulation; a capacitive storage arrangement providing power to the driver controller; a voltage limiting shunting arrangement connected with the capacitive storage arrangement, to limit voltage on the capacitive storage arrangement; a capacitive storage arrangement monitoring circuit adapted to be implanted within the body comprising a subtracting circuit, comparators and NOR logic, wherein the capacitive storage arrangement monitoring circuit is connected with the capacitive storage arrangement, the shunting arrangement, and the driver controller, and wherein the capacitive storage arrangement monitoring circuit is configured to: a back telemetry controller connected to the capacitive storage arrangement monitoring circuit that is also adapted to be implanted within the body; a transmitter adapted to be implanted within the body that is configured to transmit driver status data and shunt current data; and a power supply adapted to be external to the body that is configured to: