Walter C Sunderland from Eagan, MN, age 77

Us Patents

Implantable Medical Device Employing Integral Housing For A Formable Flat Battery
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US Patent:

6498951, Dec 24, 2002
Filed:

Oct 13, 2000
Appl. No.:

09/687446
Inventors:

Lary R. Larson - Gold Canyon AZ
Walter C. Sunderland - Minnetonka MN
Assignee:

Medtronic, Inc. - Minneapolis MN
International Classification:

A61N 1375
US Classification:

607 36
Abstract:

A body implantable medical device (IMD) includes a first shell and a second shell whose outer surfaces are biocompatible. The IMD further includes a battery enclosure defined by a cover and all or a portion of the first shell of the IMD housing. The cover of the battery enclosure is disposed between the inner surfaces of the first and second shells and has a greater rigidity than the first shell. An electrochemical cell, such as a flat liquid electrolyte battery, is provided in the battery enclosure. Electronic circuitry, supported on a flexible wiring substrate, is provided between the inner surface of the second shell and the cover of the battery enclosure. A hermetic seal is provided between the cover of the battery enclosure and all or a portion of the first shell. The hermetic seal is preferably a weld joint, such as a butt, spank or standing edge weld joint.

Contoured Battery For Implantable Medical Devices And Method Of Manufacture
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US Patent:

6881516, Apr 19, 2005
Filed:

Sep 30, 2002
Appl. No.:

10/260966
Inventors:

Paul B. Aamodt - Richfield MN, US
Franise D. Bartley - Maple Grove MN, US
Steve M. Bruesehoff - Waconia MN, US
Kurt J. Casby - Grant MN, US
David P. Haas - Brooklyn Park MN, US
Karl E. Hokanson - Coon Rapids MN, US
Thomas M. Nutzman - Andover MN, US
Andrew J. Ries - Lino Lakes MN, US
Scott J. Robinson - Forest Lake MN, US
Randy S. Roles - Crystal MN, US
Sonja K. Somdahl - Minneapolis MN, US
Walter C. Sunderland - Eagan MN, US
Kimberly A. Chaffin - Plymouth MN, US
Assignee:

Medtronic, Inc. - Minneapolis MN
International Classification:

H01M002/02
H01M002/06
H01M002/26
US Classification:

429181, 429 94, 429175, 429176
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 planar bottom, an open top to receive the cover, 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.

Feed Through Assembly For A Formable Flat Battery
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US Patent:

6899976, May 31, 2005
Filed:

Oct 22, 2002
Appl. No.:

10/277368
Inventors:

Lary R. Larson - Gold Canyon AZ, US
Walter C. Sunderland - Minnetonka MN, US
Assignee:

Medtronic INC - Minneapolis MN
International Classification:

H01M002/30
H01M002/26
US Classification:

429180, 429179, 429181, 42923195, 429188
Abstract:

A body implantable medical device (IMD) includes a first shell and a second shell whose outer surfaces are biocompatible. The IMD further includes a battery enclosure defined by all or a portion of the first shell of the IMD housing and a cover. The cover of the battery enclosure is disposed between the inner surfaces of the first and second shells, has a greater rigidity than the first shell, and includes an improved feedthrough assembly for an electrochemical cell, such as a flat liquid electrolyte battery, provided in the battery enclosure. Electronic circuitry, supported on a flexible wiring substrate, is provided between the inner surface of the second shell and the cover of the battery enclosure. A hermetic seal is provided between the cover of the battery enclosure and all or a portion of the first shell.

Capacitor Liner
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US Patent:

7733631, Jun 8, 2010
Filed:

Oct 31, 2005
Appl. No.:

11/263040
Inventors:

Leo J. Brabeck - New Brighton MN, US
Jeffrey D. Chaput - Edina MN, US
Thomas M. Henderson - Stillwater MN, US
Thomas W. Kanitz - Savage MN, US
Jeffrey J. Louwagie - Minnetonka MN, US
Christian S. Nielsen - River Falls WI, US
Walter C. Sunderland - Eagan MN, US
Assignee:

Medtronic, Inc. - Minneapolis MN
International Classification:

H01G 2/10
US Classification:

361517, 361508, 361509, 361302, 361518, 361519, 607 4, 607 5
Abstract:

A capacitor is presented that includes a housing, an electrode stack, a liner, and a fill port. The liner is located between the housing and the electrode stack. The liner includes a recessed portion. A fill port extends through the housing across from the recessed portion in the liner. A gap is formed between the recessed portion and the fill port.

Contoured Battery For Implantable Medical Devices And Method Of Manufacture
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US Patent:

7968226, Jun 28, 2011
Filed:

Nov 30, 2006
Appl. No.:

11/565306
Inventors:

Paul B. Aamodt - Richfield MN, US
Franise D. Bartley - Maple Grove MN, US
Steve M. Bruesehoff - Waconia MN, US
Kurt J. Casby - Grant MN, US
David P. Haas - Brooklyn Park MN, US
Karl E. Hokanson - Coon Rapids MN, US
Thomas M. Nutzman - Andover MN, US
Andrew J. Ries - Uno Lakes MN, US
Scott J. Robinson - Forest Lake MN, US
Randy S. Roles - Crystal MN, US
Sonja K. Somdahl - Minneapolis MN, US
Walter C. Sunderland - Eagan MN, US
Jason T. Papenfuss - Saint Paul MN, US
William J. Farrell - Arden Hills MN, US
Kimberly A. Chaffin - Plymouth MN, US
Assignee:

Medtronic, Inc. - Minneapolis MN
International Classification:

H01M 2/04
H01M 2/06
H01M 2/08
US Classification:

429169, 429175, 429176, 429185, 296231
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.

Capacitor Liner
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US Patent:

8040659, Oct 18, 2011
Filed:

May 27, 2010
Appl. No.:

12/788928
Inventors:

Leo J. Brabeck - New Brighton MN, US
Jeffrey D. Chaput - Edina MN, US
Thomas M. Henderson - Stillwater MN, US
Thomas W. Kanitz - Savage MN, US
Jeffrey J. Louwagie - Minnetonka MN, US
Christian S. Nielsen - River Falls WI, US
Walter C. Sunderland - Eagan MN, US
Assignee:

Medtronic, Inc. - Minneapolis MN
International Classification:

H01G 2/10
US Classification:

361517, 361508, 361509, 361512, 3613014, 361516
Abstract:

A capacitor is presented that includes a housing, an electrode stack, a liner, and a fill port. The liner is located between the housing and the electrode stack. The liner includes a recessed portion. A fill port extends through the housing across from the recessed portion in the liner. A gap is formed between the recessed portion and the fill port.

Capacitor Liner
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US Patent:

8179663, May 15, 2012
Filed:

May 5, 2008
Appl. No.:

12/115345
Inventors:

Leo J. Brabeck - New Brighton MN, US
Jeffrey D. Chaput - Edina MN, US
Thomas M. Henderson - Stillwater MN, US
Thomas W. Kanitz - Savage MN, US
Jeffrey J. Louwagie - Minnetonka MN, US
Christian S. Nielsen - River Falls WI, US
Walter C. Sunderland - Eagan MN, US
Assignee:

Medtronic, Inc. - Minneapolis MN
International Classification:

H01G 2/10
US Classification:

361517, 361508, 361509, 361516, 361518, 361525
Abstract:

A capacitor is presented that includes a housing, an electrode assembly, a liner, and a fill port. The liner is located between the housing and the electrode assembly. The liner includes a recessed portion. A fill port extends through the housing across from the recessed portion in the liner. A gap is formed between the recessed portion and the fill port.

Process For Making Fill Hole In A Wall Of An Energy Storage Device
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US Patent:

8231991, Jul 31, 2012
Filed:

Aug 11, 2009
Appl. No.:

12/539193
Inventors:

Paul Michael Boucher - Lake Elmo MN, US
Steven Edward Messer - Plymouth MN, US
Walter Carl Sunderland - Eagan MN, US
Benjamin Adam Matter - Brooklyn Park MN, US
Assignee:

Medtronic, Inc. - Minneapolis MN
International Classification:

H01M 10/44
H01M 2/02
H01M 69/02
US Classification:

429 50, 429185, 296232, 156250, 264155
Abstract:

A method of forming an energy storage device includes forming a fill hole in a wall of the energy storage device. The method also includes deforming the wall of the energy storage device to reduce a width of the fill hole. Moreover, the method includes sealing the fill hole.