Telemetry system for use with microstimulator

摘要

An implantable microstimulator configured to be implanted beneath a patient's skin for tissue stimulation employs a bi-directional RF telemetry link for allowing data-containing signals to be sent to and from the implantable microstimulator from at least two external devices. Further, a separate electromagnetic inductive telemetry link allows data containing signals to be sent to the implantable microstimulator from at least one of the two external devices. The RF bidirectional telemetry link allows the microstimulator to inform the patient or clinician regarding the status of the microstimulator device, including the charge level of a power source, and stimulation parameter states. The microstimulator has a cylindrical hermetically sealed case having a length no greater than about 27 mm and a diameter no greater than about 3.3 mm. A reference electrode is located on one end of the case and an active electrode is located on the other end of the case.

主权项

1. An external device configured to communicate with an implantable medical device, the device comprising:
an antenna; and circuitry coupled to the antenna and configured to utilize the antenna to communicate with the implantable medical device in accordance with a first modulation scheme via a first bi-directional wireless link and in accordance with a second modulation scheme via a second wireless link, wherein the first modulation scheme is a frequency modulation scheme.