Medical electrode leads
First Claim
1. An electrode lead for engaging trabeculae having a lead body with an exposed conductive distal tip in a conductive shank supporting the distal tip, said conductive shank having a proximal end, there being an electrical conductor coupled to the proximal end of said shank, insulating means for insulating said shank and the conductor, said insulating means including molded anchoring means, said molded anchoring means comprising at least two rows of loop means having substantially parallel upper and lower surfaces within substantially parallel planes substantially perpendicular to the longitudinal axis of the lead body, the rows of loop means being spaced apart for independent motion a sufficient distance to allow trabeculae to be temporarily entrapped perpendicular to the longitudinal axis of the lead body, said loop means being sufficiently rigid to hold the trabeculae frictionally in place yet sufficiently flexible to be adapted to fold back against the lead body when being passed through a lead introducer and into the heart without tearing the loop means.
4 Assignments
0 Petitions
Accused Products
Abstract
An electrode lead for a pacemaker which has improved introducing, removal and anchoring characteristics. An insulating covering has at least two rows of loops which fall within a truncated cone with its minimum diameter at the tip.
108 Citations
12 Claims
- 1. An electrode lead for engaging trabeculae having a lead body with an exposed conductive distal tip in a conductive shank supporting the distal tip, said conductive shank having a proximal end, there being an electrical conductor coupled to the proximal end of said shank, insulating means for insulating said shank and the conductor, said insulating means including molded anchoring means, said molded anchoring means comprising at least two rows of loop means having substantially parallel upper and lower surfaces within substantially parallel planes substantially perpendicular to the longitudinal axis of the lead body, the rows of loop means being spaced apart for independent motion a sufficient distance to allow trabeculae to be temporarily entrapped perpendicular to the longitudinal axis of the lead body, said loop means being sufficiently rigid to hold the trabeculae frictionally in place yet sufficiently flexible to be adapted to fold back against the lead body when being passed through a lead introducer and into the heart without tearing the loop means.
Specification