Method of making an implantable medical device having a flat electrolytic capacitor with miniaturized epoxy connector droplet

US6648928B2 · kind B2 · utility

Assignee

• Medtronic, Inc. · US

Inventors

• Christian S. Nielsen · River Falls, US
• Timothy T. Bomstad · Inver Grove Heights, US
• Mark D. Breyen · Plymouth, US
• Thomas P. Miltich · Maple Grove, US
• Michael Clarke · Bedford, US
• Anthony W. Rorvick · Brooklyn Park, US

Key dates

• Filing date: Apr 30, 2002
• Grant date: Nov 18, 2003
• Expiry date: May 16, 2022

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61N1/3956
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Implantable medical devices (IMDs) and their various components, particularly a simplified, miniature capacitor connector block and wiring harness utilizing an epoxy droplet and method of making same are disclosed. An electrode stack comprises a plurality of capacitor layers stacked in registration upon one another, each capacitor layer comprising a cathode layer having a cathode tab, an anode sub-assembly comprising at least one anode layer having an anode tab, and a separator layer located between adjacent anode and cathode layers. A connector assembly is electrically attached to the anode connection terminal for making electrical connection with anode tabs and to the cathode connection terminal for making electrical connection with cathode tabs. The connector block is formed on an encapsulation area of a case side wall of epoxy that is cured for a period of time under elevated temperature conditions while rotating the capacitor assembly.