US 2004/0062985 A1 · Contoured battery for implantable medical devices and method of manufacture

Contoured battery for implantable medical devices and method of manufacture

OwnerPaul B. Aamodt, Franise D. Bartley +13inventors

InventorsPaul B. Aamodt, Franise D. Bartley, Steve M. Bruesehoff, Kurt J. Casby, David P. Haas, Karl E. Hokanson, Thomas M. Nutzman, Andrew J. Ries, Scott J. Robinson, Randy S. Roles, Sonja K. Somdahl, Walter C. Sunderland, Jason T. Papenfuss, William J. Farrell, Kimberly A. Chaffin

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Abstract

A battery having an electrode assembly located in a housing that efficiently utilizes the space available in many implantable medical devices is disclosed. The battery housing provides a cover and a shallow case a preferably planar, major bottom portion, an open top to receive the cover opposing the bottom portion, and a plurality of sides being radiused at intersections with each other and with the bottom to allow for the close abutting of other components located within the implantable device while also providing for efficient location of the battery within an arcuate edge of the device. The cover and the shallow case being substantially hermetically sealed by a laser weld technique and an insulator member disposed within the case to provide a barrier to incident laser radiation so that during welding radiation does not impinge upon radiation sensitive component(s) disposed within the case.

Claims29

Dependent claims

An insulator for an electrochemical cell, comprising:

a case having a bottom, an open top to receive an electrode assembly, and at least one side extending from said bottom;
and
said case being opaque to a laser beam.

Dependencies are inferred from the claim text.