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Micturitional assist device

  • US 5,199,430 A
  • Filed: 03/11/1991
  • Issued: 04/06/1993
  • Est. Priority Date: 03/11/1991
  • Status: Expired due to Term
First Claim
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1. A method of controlling bladder discharge in which detrusor activation for contracting the bladder is controlled by action potentials passing along smaller diameter nerve fibers of a sacral root and in which contraction of a urethral sphincter for closing an outlet from the bladder is caused by action potentials passing along larger diameter nerve fibers of the sacral root, the method of controlling bladder discharge comprising:

  • electrically exciting action potentials on at least the smaller diameter nerve fibers, whereby the detrusor is activated to cause contraction of the bladder;

    concurrently blocking action potentials from passing along the larger diameter nerve fibers, whereby the urethral sphincter is permitted to relax.

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