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Electrical muscle controller

  • US 8,306,617 B2
  • Filed: 10/31/2007
  • Issued: 11/06/2012
  • Est. Priority Date: 01/08/1996
  • Status: Expired due to Fees
First Claim
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1. Heart control apparatus, the apparatus comprising:

  • circuitry for generating a non-excitatory electric field adapted to stop fibrillation;

    timing circuitry configured to determine an estimated activation time and configured to determine an application time for said field relative to said activation time;

    a sensor configured to detect fibrillation;

    a controller adapted to operate the circuitry in response to the detected fibrillation to generate a non-excitatory field which is applied at a timing and a magnitude where it does not reset the synchronization of the heart by forcing a significant percentage of the cardiac tissue into a refractory state; and

    elongate electrodes for applying said non-excitatory electric field, wherein said field generated is characterized by a timing relative to the activation of the heart or of a portion thereof, and of a magnitude, shape, duty, cycle, phase, frequency, and duration which is unable to generate a propagating action potential.

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