Prosthetic foot with adjustable heel height
First Claim
1. A prosthetic foot having an adjustable height heel, said foot comprising:
- a frame portion;
an ankle link which is pivotally supported by said frame portion at a first pivot axis;
a detent rod which is pivotally connected to said ankle link at a second pivot axis; and
a detent member pivotally affixed to said frame portion at a third pivot axis so that said detent rod passes through and extends between said second pivot axis and said third pivot axis, said detent member further includes a biasing mechanism and is selectively activatable to receive and releasably retain said detent rod so that the length of a portion of the detent rod extending between said second and third pivot axes may be selectively adjusted;
whereby when said length is changed, the angular relationship of said frame portion and said ankle link is changed.
2 Assignments
0 Petitions
Accused Products
Abstract
A prosthetic foot having an adjustable height heel includes a frame portion with an ankle link pivotally supported on the frame portion at a first pivot axis. A detent rod is pivotally connected to the ankle at a second pivot axis, and a detent member is pivotally affixed to the frame portion at a third pivot axis. The detent member is selectively operable to receive and releasably retain a length of the detent rod therein so that the length of the detent rod extending between the second and third pivot axes may be selectably adjusted. When the length of the rod is so adjusted, the angular relationship of the frame portion and the ankle link is changed thereby changing the heel height of the foot. The detent mechanism may be activated by various means including fluidic means, mechanical means, electromechanical means, and the like.
80 Citations
11 Claims
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1. A prosthetic foot having an adjustable height heel, said foot comprising:
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a frame portion; an ankle link which is pivotally supported by said frame portion at a first pivot axis; a detent rod which is pivotally connected to said ankle link at a second pivot axis; and a detent member pivotally affixed to said frame portion at a third pivot axis so that said detent rod passes through and extends between said second pivot axis and said third pivot axis, said detent member further includes a biasing mechanism and is selectively activatable to receive and releasably retain said detent rod so that the length of a portion of the detent rod extending between said second and third pivot axes may be selectively adjusted; whereby when said length is changed, the angular relationship of said frame portion and said ankle link is changed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification