Patent ID: 6609031
Filing Date: 2003-08-19
Classification: A61N

Abstract:
An improved electric tissue stimulator system for treatment or control of a condition having a transmitting means to transmit stimulation data to a receiving means, adapted to be surgically implanted within a patient, which receives the stimulation data and generates stimulation pulses to be delivered via at least one coupled, multi-electrode means, the system comprising:a) at least three first parameter data registers to store at least three first variable parameters of at least three stimulation settings; b) at least three second parameter data registers to store at least three second variable parameters of at least three stimulation settings, each second parameter data register corresponding to a first parameter data register; c) a controller, coupled to the first parameter data registers and the second parameter data registers, to select a stimulation setting including a first variable parameter and a corresponding second variable parameter; d) pulse generation circuitry, connected to the first parameter data registers, the second parameter data registers and the controller, to generate a stimulation pulse which is characteristic of the selected stimulation setting, each stimulation pulse being delivered via the at least one multi-electrode means; e) a time internal generator, coupled to the controller, for switching between the first parameter data registers and corresponding second parameter data registers for each selected stimulation setting at a programmable interval, such that the patient perceives simultaneous stimulation at each site addressed by each selected stimulation setting.