Termination of a shield within an implantable medical lead

US9452284B2 · kind B2 · utility

Assignee

• Medtronic, Inc. · US

Inventors

• Bruce R. Mehdizadeh · Savage, US
• Brian T. Stolz · Bloomington, US
• Michael R. Klardie · Bloomington, US
• James M. Olsen · Plymouth, US
• Michael J. Kern · St. Louis Park, 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: Jul 21, 2014
• Grant date: Sep 27, 2016
• Expiry date: Jul 21, 2034

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T29/49826
• 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.