Nathan P Williams

US Patent:

6712860, Mar 30, 2004

Filed:

Feb 9, 2001

Appl. No.:

09/781570

Inventors:

Eric W. Rubie - Salt Lake City UT
Larry J. Hansen - Mesquite NV
Nathan A. Williams - Salt Lake City UT
David J. Wall - Sandy UT

Assignee:

Otto Bock Healthcare LP - Minneapolis MN

International Classification:

A61F 266

US Classification:

623 55, 623 49, 623 53

Abstract:

An improved lower leg prosthesis is disclosed for providing an improved performance, including improved stability and improved multi-axial compliance. The prosthesis includes a two-part lower foot plate, incorporating a forefoot plate and a heel plate, and an upper foot plate that is attached to the forefoot and heel plates by a two-part intermediate elastomeric layer. Forming the lower foot plate and the elastomeric layer each in two parts ensures that the forefoot plate and heel plate function substantially independently of each other, which leads to substantially improved cushioning at heel strike and to improved stability throughout the gait cycle.

US Patent:

7744653, Jun 29, 2010

Filed:

Apr 22, 2005

Appl. No.:

11/112352

Inventors:

Douglas E. Rush - Draper UT, US
Nathan A. Williams - Heber City UT, US
Robert Edward Finlinson - Salt Lake City UT, US
Luder Mosler - Duderstadt, DE
Martin Hillmann - Duderstadt, DE
Richard Skiera - Vienna, AT

Assignee:

Otto Bock HealthCare LP - Minneapolis MN

International Classification:

A61F 2/80

US Classification:

623 34, 623 35, 623 36

Abstract:

A vacuum pump having shock absorption and controlled rotation for use in an artificial limb. The pump includes a housing having a first chamber, and a shaft configured to be received by and to reciprocate within the first chamber, the housing and shaft forming a pump chamber. A piston may be coupled to the shaft and positioned within the pump chamber, and intake and exhaust ports are fluidly coupled to the pump chamber. Rotational structure is mounted with respect to the pump to provide controlled rotation of the shaft relative to the housing, and shock absorption structure is included within the pump to provide shock absorption for the shaft. Both a pneumatic spring and a mechanical spring element may be provided for the shock absorption structure. An optional adapter couples the shaft to the pylon of an integral pylon prosthetic foot.

US Patent:

D653759, Feb 7, 2012

Filed:

Mar 14, 2011

Appl. No.:

29/387501

Inventors:

Justin R. Smith - West Jordan UT, US
Robert E. Finlinson - Salt Lake City UT, US
Nathan A. Williams - Salt Lake City UT, US
Jeffrey J. Friesen - Sandy UT, US
Kelli D. Hales - Centerville UT, US

Assignee:

Otto Bock Healthcare GmbH - Duderstadt

International Classification:

2403

US Classification:

D24155

US Patent:

20040215346, Oct 28, 2004

Filed:

Mar 19, 2004

Appl. No.:

10/804595

Inventors:

Eric Rubie - Salt Lake City UT, US
Larry Hansen - Salt Lake City UT, US
Nathan Williams - Heber UT, US
David Wall - Sandy UT, US
John Merlette - Big Fork MT, US

International Classification:

A61F002/62
A61F002/66

US Classification:

623/038000, 623/055000

Abstract:

An improved lower leg prosthesis is disclosed for providing an improved performance, including improved stability and improved multi-axial compliance. The prosthesis includes upper and lower foot plates and an elastomeric layer disposed between and attaching them together. The elastomeric layer extends substantially across an upper surface of the lower foot plate. The elastomeric layer preferably being narrower in width than the upper and lower foot plates in a middle portion of the layer. The prosthesis alternatively includes upper and lower foot plates and an attachment device coupled to the upper foot plate and adapted for connection to an external prosthetic component. The attachment device includes a lower surface that conforms to a sloping portion of the upper foot plate and preferably includes a generally horizontal mounting portion having a mounting protrusion, such as a pyramid adapter.

US Patent:

20050060045, Mar 17, 2005

Filed:

Sep 16, 2003

Appl. No.:

10/663514

Inventors:

Nolan Smith - Sandy UT, US
Douglas Rush - Draper UT, US
Nathan Williams - Heber City UT, US

International Classification:

A61F002/66

US Classification:

623049000, 623055000

Abstract:

A simple, wide ranging multi-axial foot with energy return and/or storage. An upper member and a spaced apart lower member are joined through a post connected to the lower member and a ball joint connected to the upper member. One buffer is located anterior to the ball joint-post, one buffer is located posterior to the ball joint-post. A heel member and heel buffer provide additional energy storage and return.

US Patent:

20120271434, Oct 25, 2012

Filed:

Nov 24, 2010

Appl. No.:

13/511763

Inventors:

Jeff Friesen - Salt Lake City UT, US
Nathan A. Williams - Salt Lake City UT, US
Justin R. Smith - West Jordan UT, US
Kelli D. Oborn - Centerville UT, US

International Classification:

A61F 2/66

US Classification:

623 55

Abstract:

A prosthetic foot is provided with a forefoot spring, a heel spring and a base spring. The base spring is connected to the heel spring and to the forefoot spring. The base spring has receiving means for the forefoot spring and the heel spring, into which receiving means the heel spring and the forefoot spring can be inserted. The heel spring is connected to the forefoot spring via a coupling element, and the coupling element extends forwards along the forefoot spring at least via one portion thereof.

US Patent:

20200375765, Dec 3, 2020

Filed:

Aug 4, 2020

Appl. No.:

16/984280

Inventors:

- Duderstadt, DE
Nathan A. WILLIAMS - Salt Lake City UT, US
Justin R. SMITH - West Jordan UT, US
Kelli D. OBORN - Erda UT, US

International Classification:

A61F 2/66

Abstract:

A prosthetic foot is provided with a forefoot spring, a heel spring and a base spring. The base spring is connected to the heel spring and to the forefoot spring. The base spring has receiving means for the forefoot spring and the heel spring, into which receiving means the heel spring and the forefoot spring can be inserted. The heel spring is connected to the forefoot spring via a coupling element, and the coupling element extends forwards along the forefoot spring at least via one portion thereof.

US Patent:

20190070022, Mar 7, 2019

Filed:

Nov 2, 2018

Appl. No.:

16/178926

Inventors:

- Minneapolis MN, US
Jens NORTHEMANN - Duderstadt, DE
Darshan RANE - Millcreek UT, US
Carsten MONICKE - Duderstadt, DE
Nathan Aaron WILLIAMS - Meriden WY, US

Assignee:

OTTO BOCK HEALTHCARE, LP - Minneapolis MN

International Classification:

A61F 2/66
A61F 2/50

Abstract:

A prosthetic foot with a structural component having a proximal attachment member for fastening the prosthetic foot to a below-knee tube, a below-knee shaft or a prosthetic knee joint, with a forefoot portion secured or formed on the structural component, and with a heel-side spring-damper system which is assigned to the structural component and which is compressed at a heel strike and bears on a sole-side guide element. The structural component is designed as a leaf spring which extends in a posterior direction from the proximal attachment means, and forms an arch and is guided in an anterior and distal direction, wherein the arch protrudes posteriorly beyond the guide element.