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A powered foot and ankle prosthesis for improved maneuverability and reduced metabolic cost

Award Information
Agency: Department of Defense
Branch: Army
Contract: W81XWH-06-C-0392
Agency Tracking Number: A064-031-0215
Amount: $99,992.00
Phase: Phase I
Program: STTR
Solicitation Topic Code: A06-T031
Solicitation Number: N/A
Solicitation Year: 2006
Award Year: 2006
Award Start Date (Proposal Award Date): 2006-08-15
Award End Date (Contract End Date): 2007-07-14
Small Business Information
10 Water Street
Lebanon, NH 03766
United States
DUNS: 015704559
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Richard Greenwald
 (603) 448-2367
Business Contact
 Janyes Lemons
Title: Administrative Manager
Phone: (603) 448-2367
Research Institution
 Hugh Herr
Media Lab
Cambridge, MA 02139
United States

 (617) 258-6574
 Nonprofit College or University

This Phase I STTR proposal seeks to address the need for development and implementation of novel powered prosthetic foot-ankle components that can by used by military personnel with lower-limb loss in typical military and civilian environments. A cost-effective, biomemetic, dynamic foot-ankle system is proposed that improves balance, walking speed, gait metabolism, and prosthesis control compared to current passive foot-ankle technologies. Additionally, the system will be developed for use by military and civilian personnel in situations that include stair ascent and descent and uneven terrains. We propose to develop a prototype of an active ankle-foot prosthesis comprising motor, spring and variable-damping elements. These electromechanical components and power components will meet practical size, weight and energy requirements. With this prosthesis, both ankle joint impedance and mechanical power generation will be controlled, offering the civilian and military below-knee amputee improvements in walking metabolism and gait pattern. The muscle like-actuation and biomimetic control will be validated for stair and slop ascent, descent, and uneven terrain. This project proposes research and development of the current prototype towards a viable commercial solution for military and civilian application.

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

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