×

Porous pacemaker electrode tip using a porous substrate

  • US 4,784,161 A
  • Filed: 11/24/1986
  • Issued: 11/15/1988
  • Est. Priority Date: 11/24/1986
  • Status: Expired due to Term
First Claim
Patent Images

1. An implantable stimulating lead for a cardiac pacemaker having a proximal end adapted to be connected to a pulse generator and a distal tip region having a surface area adapted to physically contact heart tissue for stimulating heart tissue in-growth, sensing heart contractions and promoting tissue ingrowth, said distal tip region comprising:

  • a first member defining a conductive electrode having a conductive first surface area forming a first portion of said distal tip surface area, to stimulate heart tissue and sense heart contractions; and

    a second member defining a non-conductive substrate having a second surface area forming a second portion of said distal tip surface area for promoting tissue ingrowth, and attachment of said distal tip to heart tissue,said second member including a soluble compound disposed in said substrate for rendering said substrate non-porous until after implantation in the heart tissue whereupon said compound dissolves so as to render said substrate and said second surface area porous.

View all claims
  • 4 Assignments
Timeline View
Assignment View
    ×
    ×