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Electrode tip assembly with variable resistance to bending

  • US 5,363,861 A
  • Filed: 11/08/1991
  • Issued: 11/15/1994
  • Est. Priority Date: 11/08/1991
  • Status: Expired due to Term
First Claim
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1. An electrode tip assembly for a catheter includinga support wire having a stiffness and being bendable in response to external forces, the support wire having proximal and distal opposite end portions, the proximal end portion being carried by the catheter body,a stiffening spring contiguous to the wire and being attached to a side thereof for varying the stiffness of the support wire between its proximal and distal opposite end portions so that one of said end portions is more resistant to bending than the other of said end portions in response to an applied bending force, andat least one steering wire attached to a side of said support wire for applying a bending force thereto.

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