Controlling noise sources during telemetry

Details Controlling noise sources during telemetry Controlling noise sources during telemetry

A - Human Necessities

61

N

A61N 1/39 (2006.01) A61N 1/372 (2006.01) A61N 1/37 (2006.01)

Patent

CA 2459526

The invention presents techniques for reducing the interference to telemetry from an implanted medical device caused by a source of controllable noise. In the context of an implanted system that includes a defibrillator system and a telemetry system, for example, the invention reduces the interference by suspending energy storage during telemetry. The invention further provides for suspending energy storage operation gradually rather than abruptly, by gradually reducing the duty cycle of a clock that controls the energy storage.

L'invention concerne des techniques destinées à réduire les interférences dans une télémétrie à partir d'un dispositif médical implanté, ces interférences étant causées par une source de bruit régulable. Par exemple, dans le cas d'un système implanté comprenant un système de défibrillation et un système télémétrique, l'invention permet de réduire les interférences par interruption du stockage d'énergie pendant une télémétrie. L'invention permet également d'interrompre l'opération de stockage d'énergie progressivement et non brusquement - par réduction progressive du cycle de travail d'une horloge régulant le stockage d'énergie.

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