Prosthetic foot
AssigneeMedonics, LLC
InventorsScott E. Allen, Phillip Ray Allen, Jr.
Life of this patent
Estimating the term…
Abstract
The prosthetic foot includes an extending forefoot and an extending heel which curve into arcing sections to be positioned in an overlapping and opposite fashion. A fastener securely fastens the forefoot and the heel to one another at a convergence of the arcing sections. The arcing sections define a receptacle for elements which limit the deflection of the forefoot and the heel. The preferred embodiment has a plurality of individual forefoot and heel members which readily accommodate uneven or angled terrain by individually flexing to conform to the terrain.
Claims23
A prosthetic foot for attachment to a shin section or to an ankle fixture comprising:
- a heel extension extending in a posterior direction;
- a forefoot extension, distinct from said heel extension, extending in an anterior direction;
- and
- a fastener to secure said heel extension and said forefoot extension together such that a portion of said heel extension forms an arc anterior to said fastener and a portion of said forefoot extension forms an arc posterior to said fastener whereby said heel extension and said forefoot extension are oriented in an overlapping and opposite fashion, said fastener is substantially constructed of titanium.
A prosthetic foot for attachment to a shin section or to an ankle fixture comprising:
- a heel extending in a posterior direction, said heel comprises at least two heel extensions and a spacer;
- a forefoot extension, separate from said heel, extending in an anterior direction;
- and
- a fastener to secure said heel and said forefoot extension together such that a portion of said heel forms an arc anterior to said fastener and a portion of said forefoot extension forms an arc posterior to said fastener whereby said heel and said forefoot extension are oriented in an overlapping and opposite fashion, said heel extensions being secured by said fastener such that said spacer is disposed between the two heel extensions.
A prosthetic foot for attachment to a shin section or ankle fixture comprising:
- a heel extension extending in a posterior direction;
- a forefoot extension, distinct from said heel extension, extending in an anterior direction;
- a fastener to secure said heel extension and said forefoot extension together such that a portion of said heel extension forms an arc anterior to said fastener and a portion of said forefoot extension forms an arc posterior to said fastener whereby said heel extension and said forefoot extension are oriented in an overlapping and opposite fashion;
- and
- an arc limiter which subtends said fastener and limits the deflection of said forefoot extension by engaging said forefoot extension if said forefoot extension is under a predetermined tension during toe-off.
A prosthetic foot for attachment to a shin section or to an ankle fixture comprising:
- a heel extension extending in a posterior direction;
- a forefoot extension, distinct from said heel extension, extending in an anterior direction;
- a fastener to secure said heel extension and said forefoot extension together such that a portion of said heel extension forms an arc anterior to said fastener and a portion of said forefoot extension forms an arc posterior to said fastener whereby said heel extension and said forefoot extension are oriented in an overlapping and opposite fashion;
- and
- a guide plate, disposed substantially at a rear toe portion of said forefoot extension where said forefoot extension overlaps said heel extension.
Dependencies are inferred from the claim text.