Tool-less threaded connector assembly

Details Tool-less threaded connector assembly Tool-less threaded connector assembly

A - Human Necessities

61

N

A61N 1/04 (2006.01) A61N 1/375 (2006.01)

Patent

CA 2093940

TOOL-LESS TREADED CONNECTOR ASSEMBLY ABSTRACT A lead connection suitable for use in connecting a flexible coiled lead to an implantable device. The implantable device is provided with a threaded projection having an outer diameter sized with respect to the inner diameter of the lead's conductor coil to provide a secure interconnection therewith when attached thereto. The threaded projection is disposed on top and around a feedthrough pin projecting out of the implanted device's hermetic canister. The threaded projection is screwed into the conductor coil establishing sound electrical contact between the projection and the conductor. A strain relief collar surrounds the post and lead, and a twist- and-pull type connecting ring surrounds the base of the strain relief collar. The connecting post is prevented from being unscrewed from the conductor coil, since an unscrewing motion tends to tighten the conductor coil around the threaded post. Since no connecting structure is required at the connecting end of the lead, the lead can be cut to any appropriate length at the time of implant, thereby eliminating problems with excess implanted lead. If disconnection is required, the lead may be simply cut off just beyond the threaded connecting post, or the post may be unscrewed by applying inward radial or circumferential pressure on the conductor coils. In an alternative embodiment, the threaded projection is replaced with a tapered triangular post with either smooth or toothed edges, which is inserted into the coiled conductor lead.

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