Patent ID: 6733446
Filing Date: 2004-05-11
Classification: A61B,A61M,A61N,G06F,G16H,Y02D,Y10S,Y10T

Abstract:
A medical system, comprising:a) an ambulatory medical device (MD) comprising MD electronic control circuitry that further comprises at least one MD telemetry system and at least one MD processor that controls, at least in part, operation of the MD telemetry system and operation of the medical device, wherein the medical device is configured to provide a treatment to a body of a patient or to monitor a selected state of the body; b) a communication device (CD) comprising CD electronic control circuitry that further comprises at least one CD telemetry system and at least one CD processor that controls, at least in part, operation of the CD telemetry system and operation of the communication device, wherein the CD telemetry system sends messages to or receives messages from the MD telemetry system; and c) a pulse stealer circuit wherein the pulse stealer circuit removes a single pulse from an input clock signal having a first frequency at a predefined repetition rate so as to modify the input clock signal from the first frequency to a second frequency, wherein the MD telemetry system and the CD telemetry system send and receive messages using digital modulation and demodulation.