Implantable lead having a shielded bandstop filter comprising a self-resonant inductor for an active medical device

US8670841B2 · kind B2 · utility

Assignee

• Greatbatch Ltd. · US

Inventors

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

Key dates

• Filing date: Apr 10, 2013
• Grant date: Mar 11, 2014
• Expiry date: Apr 10, 2033

Classification

• Technology area (CPC H): Electricity
• CPC primary: H03H2007/013
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A shielded component or network for an active medical device (AMD) implantable lead includes (1) an implantable lead having a length extending from a proximal end to a distal end, all external of an AMD housing, (2) a passive component or network disposed somewhere along the length of the implantable lead, the passive component or network including at least one inductive component having a first inductive value, and (3) an electromagnetic shield substantially surrounding the inductive component or the passive network. The first inductive value of the inductive component is adjusted to a account for a shift in its inductance to a second inductive value when shielded.