Fully implantable nerve signal sensing and stimulation device and method for treating foot drop and other neurological disorders

  • US 20050010265A1
  • Filed: 04/02/2004
  • Published: 01/13/2005
  • Est. Priority Date: 04/02/2003
  • Status: Active Grant
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First Claim
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1. A totally implantable nerve stimulation system, comprising:

  • one or more nerve cuffs having electrodes therein that contact a nerve or nerves;

    an event-triggered, closed-loop control unit that is connected to receive signals from at least one electrode in a nerve cuff and to deliver stimulation pulses to at least one electrode in order to produce a desired physiological response, the closed-loop control unit including;

    an internal electrical power source;

    a processor;

    a number of signal conditioning circuits;

    a programmable switch controlled by the processor to connect an electrode to a signal conditioning circuit;

    at least one stimulation circuit that delivers a stimulation pulse to one or more of the electrodes;

    wherein the processor selectively enables the number of signal conditioning circuits, the programmable switch and the at least one stimulation circuit to lengthen the life of the electrical power source.

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