Patent ID: 7826905
Filing Date: 2010-11-02
Classification: A61N

Abstract:
1. An implantable electrical medical lead extending between proximal and distal ends for use with a pulse generator to be implanted within a human body, the lead comprising: a distal electrode; a connector providing an electrical connection with the pulse generator; an electrical conductor within the lead extending between a proximal end for attachment with the connector and a distal end for attachment to the distal electrode; and an insulating sheath of flexible resilient material normally covering the electrical conductor and extending from the proximal end to the distal end and having self sealing properties to re-insulate the electrical conductor in the event of an abrasion of the sheath; wherein the insulating sheath is of polymeric material embedded with a plurality of pellets, each pellet having a frangible shell containing a liquid sealing material that fills the rupture and solidifies when the frangible shell is broken; wherein the flexible resilient material of the insulating sheath is selected from the group consisting of silicone or polyurethane or a combination thereof; and wherein the liquid sealing material in each pellet is a body temperature curable adhesive.