×

Press fit electrical connection apparatus

  • US 4,214,804 A
  • Filed: 09/25/1978
  • Issued: 07/29/1980
  • Est. Priority Date: 09/25/1978
  • Status: Expired due to Term
First Claim
Patent Images

1. For transmitting an electrical pulse from a pair of terminals of a pulse generator to a heart, a bipolar lead assembly comprising a first and a second connector pin adapted for being electrically connected to the terminals of a pulse generator, a tip electrode, a ring electrode having an inner surface, an elongated first electric conduit electrically connecting the first pin to the tip electrode, an elongated second electric conduit having a first end portion electrically connected to the second pin, and a second end portion extended into the ring electrode, said second end portion being a coil spring end portion, and means extending into the ring electrode in press fitting relationship thereto for retaining the coil spring end portion in electrical conductive relationship with the ring electrode, said means comprising an internal ring of electrically conductive metal having an exterior surface portion in electrically conductive relationship with the ring electrode inner surface and said coil spring end portion, the internal ring having a portion having an exterior groove opening to the ring electrode interior surface, the major part of the grooved portion being of a circular arcuate configuration and having an outer surface facing the ring electrode, the maximum radial spacing of the internal ring outer surface from the part of the ring electrode interior surface that the grooved portion open to being less than the maximum outer diameter of the helices of the coil spring end portion in a relaxed condition.

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