Tool-less pacemaker lead assembly

Details Tool-less pacemaker lead assembly Tool-less pacemaker lead assembly

1990-09-10

1992-02-11

Kamm, William E.

Surgery

Truss

Pad

128784, A61N 105

Patent

active

050867733

ABSTRACT:
A lead connection assembly for an implantable device forming a subcutaneous electrical and mechanical connection with an electrical lead without tools employs connectors in the form of a resilient conductive spring-retainers each in the shape of a generally cylindrical helix disposed in a bore for receiving the lead. Each spring retaining connector is electrically connected to the internal circuitry of the implantable device using a feedthrough connection and the helix of the retaining connector means is adapted to receive a terminal poriton of the lead. The helix operates in a manner such that when the lead is rotated a partial revolution within the helix in a direction, which would tend to unwind the helix, the lead is simultaneously freed to move axially in and out of the helix coil and when the lead is rotated a partial revolution within the helix in a direction which tends to tighten the helix winding, the coil permanently seizes the lead such that it cannot be withdrawn without first being rotated in the unwinding direction.

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