Electrically insulated component sub-assemblies of implantable medical devices

US6799072B2 · kind B2 · utility

Assignee

• Medtronic, Inc. · US

Inventors

• Andrew J. Ries · Lino Lakes, US
• Mark D. Breyen · Plymouth, US
• John D. Norton · New Brighton, US
• Thomas P. Miltich · Maple Grove, US
• Steven J. May · Minnetonka, US
• Angela Rodgers · Minneapolis, US

Key dates

• Filing date: Apr 25, 2002
• Grant date: Sep 28, 2004
• Expiry date: Apr 8, 2023

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B33Y80/00
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Implantable medical devices (IMDs) and their various components, particularly methods and apparatus for electrically isolating and supporting components of an IMD IPG, e.g., capacitors of a capacitor sub-assembly, thereof in volumetrically efficient ways. A capacitor sub-assembly comprising two or more capacitors stacked side-by-side such that the facing capacitor case major sides are separated by a reliable and simple to apply insulation layer of minimal thickness is disclosed for assembly with other components of an ICD IPG into an IPG housing. A shape conforming insulating spacer is formed of an insulating polymer to conform to the shape of a first capacitor case major side and the perimeter of that major side. The shape conforming insulating spacer is simply applied or adhered by adhesive layers, bands or patterns to one or both of the facing capacitor case major sides.