Implantable medical device assembly and manufacturing method

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US006721602B2

(12) United States Patent ao) Patent No.: us 6,721,602 B2

Engmark et al. (45) Date of Patent: Apr. 13,2004

(54) IMPLANTABLE MEDICAL DEVICE ASSEMBLY AND MANUFACTURING METHOD

(75) Inventors: David B. Engmark, Bethel, MN (US);

Thomas Ceballos, Spring Lake Park,
MN (US); Richard A. Bruchmann,
Andover, MN (US); Kevin K.
Tidemand, East Bethel, MN (US);
George Patras, Plymouth, MN (US);
Todd Schaefer, Blaine, MN (US);
Robert L. Olson, Vadnais Heights, MN
(US)

(56)

6,275,369 Bl 8/2001 Stevenson et al. * cited by examiner

Primary Examiner—George R. Evanisko

(74) Attorney, Agent, or Firm—Girma Wolde-Michael;

Daniel G. Chapik

(57) ABSTRACT

In general, the invention is directed to an implantable medical device assembly having a more space-efficient housing and components, as well as processes for assembling the implantable medical device with reduced assembly cost and less complexity. The implantable medical device may incorporate a battery, capacitor, circuit assembly, feedthrough assembly, and interconnect assembly with respective electrical terminals. This configuration permits the use of automated electronic module assembly techniques such as parallel gap or ribbon bond welding to electrically connect the terminals. A feedthrough assembly may present a set of terminals adjacent a corresponding set of circuit terminals, also enabling the use of automated welding techniques.

18 Claims, 16 Drawing Sheets