Method of manufacturing a set screw-less pacemaker header with lead lock system

摘要

A method for manufacturing a header for an implantable medical device such as a pacemaker which contains an advantageous molded design with encapsulated wires and conductive features. The header including a specifically formed lead lock member in which a plurality of collets residing in bores in the molded housing are used to retain and lock implantable leads in place without the use of set screws.

主权项

1. A method of manufacturing a header for an implantable medical device comprising:
providing a plurality of header components including preformed wire conductors, contact blocks, contact rings, and a female threaded anchor for construction of a header housing assembly; assembling a header housing assembly by:
welding ends of the preformed wire conductors to the contact blocks and the contact rings to form sub-assemblies;positioning the contact blocks and the contact rings of the welded sub-assemblies onto core pins;placing distal ends of the preformed wire conductors in shut off regions adjacent a mold cavity;coupling the female threaded anchor with a further core pin; placing the header housing assembly into the mold cavity; overmolding the header housing assembly with a polymer; extracting the core pins and further core pin from the mold cavity; ejecting the header housing assembly from the mold cavity; testing the header housing assembly electrically; and attaching a lead lock member to the header housing assembly.