Active implantable medical system having EMI shielded lead

US8849403B2 · kind B2 · utility

Assignee

• Greatbatch Ltd. · US

Inventors

• Robert Shawn Johnson · North Tonawanda, US
• Robert A. Stevenson · Humphreys, US
• Warren S. Dabney · Odenton, US
• Holly Noelle Moschiano · Williamsville, US
• Kishore Kumar Kondabatni · Williamsville, US
• Neal Nesselbeck · Lockport, US
• Joseph Spaulding · Williamsville, US
• Henry R. Halperin · Baltimore, US
• Albert C. Lardo · Baldwin, US

Key dates

• Filing date: May 26, 2010
• Grant date: Sep 30, 2014
• Expiry date: May 9, 2031

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61N1/3718
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A lead extending exteriorly from an active implantable medical device (AIMD) is at least partially ensheathed within an electromagnetic interference (EMI) shield. The AIMD has a conductive equipotential surface to which the EMI shield may be conductively coupled. An impeding circuit may be provided for raising the high frequency impedance of the lead. An energy diversion circuit may also be provided for conductively coupling the lead to the EMI shield.