Pankaj N Mohan

US Patent:

20120107677, May 3, 2012

Filed:

Oct 28, 2010

Appl. No.:

12/914766

Inventors:

Afsar M. Ali - Maple Grove MN, US
David P. Guy - Maple Grove MN, US
Jason T. Papenfuss - Minneapolis MN, US
Pankaj Mohan - Maple Grove MN, US

Assignee:

MEDTRONIC, INC. - Minneapolis MN

International Classification:

H01M 2/02
B23K 26/20
B23K 26/36

US Classification:

429185, 296232, 21912169, 21912166

Abstract:

An energy storage device may include a housing and a fluid access aperture extending through a sidewall of housing that is used to fill the device with electrolytic fluid. In some examples, the fluid access aperture may define a length extending through the housing that is greater than a major width that extends across a cross-sectional area of the fluid access aperture. In some additional examples, the fluid access aperture may be angled relative to an axis that is substantially orthogonal to the housing. Depending on the situation, such example fluid access apertures may prevent electrolytic fluid from escaping from the energy storage device while the fluid access aperture is being sealed.

US Patent:

20130136979, May 30, 2013

Filed:

May 22, 2012

Appl. No.:

13/477886

Inventors:

Pankaj Mohan - Maple Grove MN, US
David J. Buendorf - Maple Grove MN, US
Jeffrey J. Louwagie - Minnetonka MN, US

Assignee:

MEDTRONIC, INC. - Minneapolis MN

International Classification:

H01M 2/08
H05K 7/00
B32B 1/06
H05K 5/00
B23K 11/00
B32B 7/04

US Classification:

429185, 219148, 428198, 428 341, 174 50, 361728

Abstract:

A component of an implantable medical device may include a first member, a second member, and a composite seam weld formed between the first member and the second member. In some examples, the composite seam weld includes a continuous wave (CW)-welded portion formed using CW welding and a pulse-welded portion formed using pulsed welding. A first end of the pulse-welded portion may partially overlap a first end of the CW-welded portion and may be offset from the first end of the CW-welded portion in a direction substantially perpendicular to a longitudinal orientation of the first end of the CW-welded portion. Techniques for forming composite seam welds are also described.

US Patent:

20100304213, Dec 2, 2010

Filed:

Nov 18, 2009

Appl. No.:

12/621132

Inventors:

Stephanie Breimon - Delano MN, US
Stephen Daniel Arco - Woodbury MN, US
Pankaj Mohan - Maple Grove MN, US
Walter C. Sunderland - Eagan MN, US
Paul M. Boucher - Lake Elmo MN, US
Jeffrey J. Louwagie - Minnetonka MN, US

Assignee:

MEDTRONIC, INC. - Minneapolis MN

International Classification:

H01M 2/08

US Classification:

429185, 296232

Abstract:

A method of manufacturing an energy storage device for a medical device includes enclosing a cell assembly in a case. The case includes a filling aperture. The filling aperture includes an inner surface that is integral to the case so as to be monolithic. The case is free of a separate fill port tube. Moreover, the method includes introducing an electrolyte into the case through the filling aperture and hermetically sealing the filling aperture to form a first seal of the filling aperture that is free of a filler material. The method additionally includes hermetically sealing the sealing member to the case to form a second seal of the filling aperture.