Delivery of active fixation implatable lead systems

摘要

An implantable lead system includes an elongated device slideably engaged within a lumen of a lead body. A distal portion of the elongated device is slidable through a helix tip coupled to a distal end of the lead body by passing through a pierceable fluid-tight seal disposed in proximity to the distal end of the lead body; the seal prevents ingress of bodily fluid into the lumen of the lead body.