Military Specific Advancements in Prosthetic Limb Design and Performance

Award Information
Agency: Department of Defense
Branch: Army
Contract: W81XWH-05-C-0147
Agency Tracking Number: O054-005-2016
Amount: $749,993.00
Phase: Phase II
Program: STTR
Awards Year: 2006
Solicitation Year: 2005
Solicitation Topic Code: OSD05-T005
Solicitation Number: N/A
Small Business Information
63 Potomac Street, San Francisco, CA, 94117
DUNS: 190152921
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Nathan Harding
 CTO
 (415) 533-8062
 nathan@berkeleyexoworks.com
Business Contact
 Nathan Harding
Title: CTO
Phone: (415) 533-8062
Email: kazerooni@berkeley.edu
Research Institution
 UNIV. OF CALIFORNIA
 Homayoon Kazerooni
 5124 Etcheverry Hall
Berkeley, CA, 94720
 (510) 642-2964
 Nonprofit college or university
Abstract
The overall goal of this research work is to design, build and evaluate high performance above-knee prosthetic systems suitable for military specific maneuvers. Existing above-knee prostheses are limited by the lack of compact energy sources, actuators, power regeneration methods, and control methods for active knee actuation. This proposal seeks to improve the dynamic performance of above-the-knee prostheses by developing several key technologies that are currently not available in such devices. First, the high power output required of the prostheses in military maneuvers such as climbing or running will be provided by a customized lightweight and compact active actuation scheme. Although power limitations traditionally barred prostheses from employing active actuation, our preliminary analysis has shown great potential for energy recovery and regeneration by harnessing the cyclical nature of locomotion. Coupled with the design of an actively actuated prosthetic knee will be the development of a lightweight and compact energy recovery/regeneration system. Based on our initial analysis, such a system would not only greatly improve the performance of the prosthetic by allowing for a powered joint, but also decrease the frequency of, if not completely eliminating the need for, changing or charging batteries.

* Information listed above is at the time of submission. *

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