Termination of a shield within an implantable medical lead

US8788061B2 · kind B2 · utility

Assignee

• Medtronic, Inc. · US

Inventors

• Bruce R. Mehdizadeh · Savage, US
• Brian T. Stolz · Bloomington, US
• Michael R. Klardie · Bloomington, US
• Michael J. Kern · St. Louis Park, US
• James M. Olsen · Plymouth, US
• Richard T. Stone · Minneapolis, US
• Chad Q. Cai · Woodbury, US
• Spencer M. Bondhus · Columbia Heights, US
• Mark J. Conroy · St. Louis Park, US
• Timothy R. Abraham · Lino Lakes, US

Key dates

• Filing date: Apr 27, 2010
• Grant date: Jul 22, 2014
• Expiry date: Jul 6, 2030

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61N2001/0582
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

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.