Andrew E Hansen

US Patent:

8480760, Jul 9, 2013

Filed:

Apr 12, 2011

Appl. No.:

13/066361

Inventors:

Andrew H. Hansen - Apple Valley MN, US
Jonathon W. Sensinger - Chicago IL, US

Assignee:

Northwestern University - Evanston IL
Rehabilitation Institute of Chicago - Chicago IL
Department of Veteran Affairs - Washington DC

International Classification:

A61F 2/66

US Classification:

623 52, 623 47, 623 50

Abstract:

The present invention relates to an improved system for use in rehabilitation and/or physical therapy for the treatment of injury or disease to the lower limbs or extremities. The system can enable an amputee to proceed over any inclined or declined surface without overbalancing. The system is mechanically passive in that it does not utilize motors, force generating devices, batteries, or powered sources that may add undesirable weight or mass and that may require recharging. In particular the system is self-adapting to adjust the torque moment depending upon the motion, the extent of inclination, and the surface topography. An additional advantage of the improvement is that the system can be light and may also be simple to manufacture.

US Patent:

20120116540, May 10, 2012

Filed:

Sep 28, 2011

Appl. No.:

13/200703

Inventors:

Andrew H. Hansen - Apple Valley MN, US
Kerice A. Tucker - Evanston IL, US

International Classification:

A61F 2/66
B26D 3/00
B29C 39/00
B24B 1/00
B29C 45/00
B23P 17/04
B23B 35/00

US Classification:

623 53, 29557, 83 13, 408 1 R, 451 36, 295271, 264239, 2643281, 264299

Abstract:

A prosthetic foot is made by machining or molding a prosthetic foot profile to have a plurality of slots in and along the length of the forefoot region of the foot shape to achieve the appropriate roll-over shape during walking, and slotting the heel region of the machined foot shape to provide shock absorption in early stance phase of walking.

US Patent:

20130006386, Jan 3, 2013

Filed:

Jan 20, 2012

Appl. No.:

13/374881

Inventors:

Andrew H. Hansen - Apple Valley MN, US
Eric A. Nickel - Brooklyn Park MN, US

International Classification:

A61F 2/66
A61F 2/70

US Classification:

623 24, 623 47, 623 52, 623 50, 623 51

Abstract:

The present invention relates to an improved system for use in rehabilitation and/or physical therapy for the treatment of injury or disease to the lower limbs or extremities. The system can enable an amputee to proceed over any inclined or declined surface without overbalancing. The system is mechanically passive in that it does not utilize motors, force generating devices, batteries, or powered sources that may add undesirable weight or mass and that may require recharging. In particular the system is self-adapting to adjust the torque moment depending upon the motion, the extent of inclination, and the surface topography. An additional advantage of the improvement is that the system can be light and may also be simple to manufacture.

US Patent:

20130096694, Apr 18, 2013

Filed:

Jun 21, 2012

Appl. No.:

13/529833

Inventors:

Ryan J. Caldwell - Long Grove IL, US
Andrew H. Hansen - Apple Valley MN, US
Sean M. Wood - Gardena CA, US
Wei Chen - Glenview IL, US
Regan A. Radcliffe - Sunnyvale CA, US
Kevin A. Yngve - Evanston IL, US
Bennett E. Kuhar - Concord Twp. OH, US
Andrew J. Nelson - Chicago IL, US
Eric Nickel - Brooklyn Park MN, US

Assignee:

NORTHWESTERN UNIVERSITY - Evanston IL

International Classification:

A61F 2/80

US Classification:

623 34

Abstract:

Pump systems for use in suspension of a prosthetic device from a residual limb and methods of suspending a prosthetic device from a residual limb are disclosed. The pump systems include a mechanically activated pump having a first compression member coupled to a second compression member, a compressible bladder disposed between the first and second compression members, and coupling elements that engage and couple together the first and second compression members. The mechanically activated pump may be connected with an electrically activated pump within a fluid circuit of a hybrid pump system to provide vacuum engagement between a prosthetic device and a residual limb.

US Patent:

20130113178, May 9, 2013

Filed:

Oct 3, 2012

Appl. No.:

13/644139

Inventors:

The United State Government, as Represented by - Washington DC, US
Andrew Hansen - Apple Valley MN, US

Assignee:

The United State Government, as Represented by the Department of Veterans Affairs - Washington DC

International Classification:

B62M 1/14

US Classification:

280250, 280249

Abstract:

The present invention relates to a novel approach to improving the use of wheelchairs by offering the ability for the wheelchair to transition between accommodation for a seated position, and accommodation for a standing position, more particularly, wherein the inventive mobile manual standing wheelchair allows for a standing position during the course of mobile use, and which also permits fixed gearing of multiple speeds that also accommodates forwards and backwards motion.

US Patent:

20140074255, Mar 13, 2014

Filed:

Jan 11, 2011

Appl. No.:

13/979249

Inventors:

Felix Starker - Stuttgart, DE
Urs Schneider - Stuttgart, DE
Andrew H. Hansen - Apple Valley MN, US
Dudley S. Childress - Wilmette IL, US
Joachim Pauli - Naunhof, DE
Carsten Pauli - Leipzig, DE

Assignee:

NORTHWESTERN UNIVERSITY - Evanston IL
FALZ & KANNENBERG GMBH & CO. KG - Brandis

International Classification:

A61F 2/66

US Classification:

623 50

Abstract:

The present invention relates in the field of orthopedics to an artificial ankle which imitates the natural human gait in a proper way, thereby enabling its user to walk not only in a plane environment but also uphill and downhill without any unpleasant effects. The present invention further relates to an artificial foot and an artificial leg containing said artificial ankle.

US Patent:

20230018447, Jan 19, 2023

Filed:

Jul 21, 2022

Appl. No.:

17/870445

Inventors:

- Washington DC, US
- Minneapolis MN, US
Stuart Richard Fairhurst - South Saint Paul MN, US
Andrew Hansen - Apple Valley MN, US

International Classification:

A61F 2/80
A61B 5/103
A61B 5/00
A61F 2/68
A61F 2/76

Abstract:

Disclosed herein are devices, systems, and methods for measuring socket fit in lower limb prostheses and detecting motion of a residual limb relative to a prosthetic socket. Also disclosed herein are methods for developing a socket-fit detection system for sock management that can be applied to adjustable socket systems.

US Patent:

20210106442, Apr 15, 2021

Filed:

Jun 14, 2019

Appl. No.:

17/251428

Inventors:

- Washington DC, US
Eric Nickel - Minneapolis MN, US
Stuart Fairhurst - Minneapolis MN, US
Justin Keister - Minneapolis MN, US
Andrew H. Hansen - Minneapolis MN, US

International Classification:

A61F 2/66
A61F 2/70

Abstract:

An ankle prosthesis can have a base and an upper hinge component that is pivotably attached to the base about an axis. First and second biasing elements can bias the upper hinge component in first and second rotational directions, respectively. At least one selectively extendable and retractable locking element can extend from one of the base and the upper hinge component and engage the other of the base and the upper hinge component to limit the pivotable movement of the upper hinge component.