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Passive SPARKy-P Prostheses (Spring Ankle with Regenerative Kinetics)

Award Information
Agency: Department of Defense
Branch: Defense Health Agency
Contract: W81XWH-17-C-0085
Agency Tracking Number: H16C-007-0068
Amount: $150,000.00
Phase: Phase I
Program: STTR
Solicitation Topic Code: DHP16C-007
Solicitation Number: 2016.0
Solicitation Year: 2016
Award Year: 2017
Award Start Date (Proposal Award Date): 2017-07-14
Award End Date (Contract End Date): 2018-02-13
Small Business Information
2414 W. 12th St
Tempe, AZ 85281
United States
DUNS: 808441963
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Kyle Schroeder
 Senior Scientist
 (480) 704-3592
Business Contact
 Kevin Hollander
Phone: (480) 704-3592
Research Institution
 Arizona State University
 Kevin Hollander
ASU Grant & Contract Officer P.O. Box 876011
Tempe, AZ 85287
United States

 (480) 704-3592
 Nonprofit College or University

SpringActive Inc. collaborating with Arizona State University will design and build a spring-based, passive prosthetic ankle that stores energy in the stance phase and returns it at push-off to propel the user forward. The team will leverage experience in designing tuned spring ankles. A plantarflexion spring will allow the ankle to plantarflex smoothly and align to the ground after heel strike. This same spring will bias the ankle-joint to a neutral position during the swing phase. A dorsiflexion spring will be tuned for energy storage and will be clutched-on as the tibia rolls over the ankle joint. The key technology will be to un-clutch the spring at toe-off to allow the foot to return to a neutral position. In Phase 1, the ankle will be tuned to allow for stable standing and normal walking speeds. The benefits of this ankle are: low-cost, light-weight, passive, no-batteries, no-microprocessor, energy storage and return, and an articulating ankle joint that allows the user to stand without the socket pressing against the tibia in the front of the lower leg.

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

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