×

System, methods and apparatus for waking an autonomous active implantable medical device communicating by pulses transmitted through the interstitial tissues of the body

  • US 8,577,327 B2
  • Filed: 10/18/2011
  • Issued: 11/05/2013
  • Est. Priority Date: 10/18/2010
  • Status: Active Grant
First Claim
Patent Images

1. A system for wireless communication between at least two active medical devices in which at least one active medical device is a transmitter device and at least one active implantable medical device is a receiver device, wherein:

  • the transmitter device comprises a first pair of electrodes and a transmitter means for generating a modulated pulse train comprising a wake-up plurality of pulses in a series corresponding to a communication to the receiver device, and a wake-up signal preceding said modulated pulse train, said wake-up signal having a predetermined characteristic pulse pattern, and for applying said wake-up signal and modulated pulse train to said first pair of electrodes; and

    the receiver device comprises an energy source, at least one active circuit element, a second pair of electrodes, and a receiver means for collecting a received signal at said first pair of electrodes and processing said received signal to identify therein a received wake-up signal and modulated pulse train corresponding to said wake-up signal and modulated pulse train from said transmitter means, and means for demodulating said received modulated pulse train into a received pulse train corresponding to said wake-up plurality of pulses;

    wherein said receiver means further comprises means for selectively switching said at least one active circuit element between a sleep state not powered by said energy source and an operational state powered for processing said received signal using said at least one active circuit element; and

    ,wake-up circuit means for discriminating said received wake-up signal having said predetermined characteristic pulse pattern, and in response, switching the receiver means from the sleep state to the operational state, wherein;

    said wireless communication is an intracorporeal communication of electrical pulses conducted by the interstitial tissues of a patient'"'"'s body; and

    the wake-up circuit means comprises a detector circuit and a hysteresis comparator.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×