A Manual Standup Wheelchair

Award Information
Agency:
Department of Health and Human Services
Branch
n/a
Amount:
$197,000.00
Award Year:
2005
Program:
SBIR
Phase:
Phase I
Contract:
1R43HD044271-01A3
Agency Tracking Number:
HD044271
Solicitation Year:
2005
Solicitation Topic Code:
n/a
Solicitation Number:
PHS2005-2
Small Business Information
GREEN TECHNOLOGIES, INC.
Green Technologies, Inc., 13387 Green Rd, West Fork, AR, 72774
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
STEVE GREEN
(479) 839-3454
SGREEN@GREENTECHNOLOGIES.COM
Business Contact:
STEVE GREEN
(501) 839-3454
SGREEN@GREENTECHNOLOGIES.COM
Research Institution:
n/a
Abstract
DESCRIPTION (provided by applicant): Current conventional manual standup wheelchairs have serious drawbacks: propulsion requires suboptimal arm ergonomics, they are biomechanically inefficient, and they only allow manual mobility in a sitting position. We propose the development of a manual wheelchair that will allow the user to be manually mobile in a sitting position, a standing position, or any intermediate position. The functional benefits of such a wheelchair are obvious since the user will have a greatly increased reach and functional workspace. Such a wheelchair will also have a number of physiologic benefits and, perhaps most importantly, a significant psychological benefit. Additionally, since the chair is manually propelled in both sitting and standing positions, the user will retain the cardio-vascular benefits of manual propulsion. The manual standing wheelchair is based on a simple, strong, and lightweight four-bar linkage system that uses the armrests as lever inputs for a ratchet mechanism that erects the chair to a standing position. Anti-tip wheels lower automatically to extend the wheelbase and allow safe operation of the chair while erect. The wheelchair will use a lever drive that will allow better ergonomics and more efficient propulsion. To accomplish our objectives we have assembled an experienced multi-disciplinary team that includes expertise in machine design, mechanism design and testing, biological and mechanical testing of wheelchairs, the prescription of wheelchairs and wheelchair seating, and rehabilitation medicine.

* information listed above is at the time of submission.

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