发明名称 |
Prosthetic foot with cam |
摘要 |
A prosthetic foot device includes an elongated continuous cantilever-spring, extending from an attachment section coupleable to a stump of an amputee to a toe section at a toe location of a natural foot. The cantilever-spring is elastically deformable under a load to store energy as the amputee steps onto the cantilever-spring and to release energy as the amputee steps off of the cantilever-spring. A cam is pivotally coupled to the cantilever-spring at a pivot. A resistance arm is coupleable to the stump of the amputee, and extends to a displaceable section engaging the cam. A lever arm is attached to the cantilever-spring and engages the cam. The cam operatively inter-couples the cantilever-spring and the resistance arm to elastically deform the resistance arm along with the cantilever-spring to collectively store more energy than the cantilever-spring alone.
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申请公布号 |
US7172630(B2) |
申请公布日期 |
2007.02.06 |
申请号 |
US20040783559 |
申请日期 |
2004.02.20 |
申请人 |
ROLAND J. CHRISTENSEN, AS OPERATING MANAGER OF RJC DEVELOPMENT, LC, GENERAL PARTNER OF THE ROLAND J. CHRISTENSEN FAMILY LIMITED PARTNERSHIP |
发明人 |
CHRISTENSEN ROLAND J. |
分类号 |
A61F2/66;A61F2/00;A61F2/50;A61F2/68 |
主分类号 |
A61F2/66 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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