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Magnetic-interference-free surgical prostheses

  • US 6,348,070 B1
  • Filed: 04/16/1999
  • Issued: 02/19/2002
  • Est. Priority Date: 04/17/1998
  • Status: Active Grant
First Claim
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1. A coil system in an implantable prosthesis for receiving electromagnetic waves from an external transmitter, the system comprising:

  • two coils of identical inductance, adapted to be positioned substantially equidistant from the external transmitter, the coils connected such that the winding direction of one coil is antiparallel to the winding direction of the other coil, and such that the sum of the voltages induced in the coils by a homogeneous electromagnetic field is substantially equal to zero.

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