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Electromagnetic interference immune tissue invasive system

  • US 20020133199A1
  • Filed: 02/19/2002
  • Published: 09/19/2002
  • Est. Priority Date: 02/20/2001
  • Status: Active Grant
First Claim
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1. A cardiac assist device, comprising:

  • a primary device housing;

    said primary device housing having a control circuit therein;

    a shielding formed around said primary device housing to shield said primary device housing and any circuits therein from electromagnetic interference;

    a lead system to transmit and receive signals between a selected cardiac tissue region and said primary device housing;

    a switch to place the control circuitry into a fixed-rate mode of operation;

    an acoustic sensor to sense a predetermined acoustic signal;

    said switch placing the control circuitry into a fixed-rate mode of operation when said acoustic sensor senses the predetermined acoustic signal.

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