TERMINATION OF A SHIELD WITHIN AN IMPLANTABLE MEDICAL LEAD

摘要

A shield located within an implantable medical lead may be terminated in various ways at a metal connector. The shield may be terminated by various joints including butt, scarf, lap, or other joints between insulation layers surrounding the lead and an insulation extension. The shield may terminate with a physical and electrical connection to a single metal connector. The shield may terminate with a physical and electrical connection by passing between an overlapping pair of inner and outer metal connectors. The metal connectors may include features such as teeth or threads that penetrate the insulation layers of the lead. The shield may terminate with a physical and electrical connection by exiting a jacket of a lead adjacent to a metal connector and lapping onto the metal connector.

主权项

1. A method of terminating a braided shield within a jacket of an implantable medical lead, comprising:
providing an inner insulation layer; providing an inner metal ring located near an end of the inner insulation layer; providing the braided shield between the inner insulation layer of the jacket and an outer insulation layer of the jacket, a portion of the braided shield lapping onto the inner metal ring; and providing an outer metal ring about the inner metal ring with the portion of the braided shield being positioned between the inner metal ring and the outer metal ring.