Prosthetic ankle joint
AssigneeSt&G USA Corp.
InventorsJoseph L. Molino, Michael Rebarber
Life of this patent
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Abstract
A prosthetic ankle joint for a prosthetic foot attached to a base assembly. A linkage assembly provided between the base assembly and a torque bracket including an adapter unit disposed at top of the torque bracket to provide a connection to a lower tube-shaped clamp fitted over a pilon. The pilon extends upward to a second tube-shaped clamp connected to a lower portion of a socket receiving a residual limb of an amputee.
Claims8
A prosthetic ankle joint having a dorsiflexion mechanism for achieving active dorsiflexion between a foot and a leg and formed with first and second active dorsiflexion assemblies, said prosthetic ankle joint including a torque bracket pivotably connected to a base assembly by a linkage assembly, the torque bracket having an upper arm, a lower arm extending downwardly from the upper arm, the linkage assembly having a top portion and two spaced from each other side walls extending from the top portion, the dorsiflexion mechanism is disposed at an interface between an interior of the torque bracket, the lower arm and the linkage assembly, wherein said prosthetic ankle joint comprises,
- an adjustment pin comprising an inner portion and an outer portion, the first and second active dorsiflexion assemblies separated by the adjustment pin, each said dorsiflexion assembly comprises a channel oriented transversely to the adjustment pin, each said channel houses an inner active dorsiflexion adjustment ball engaging the inner portion of the pin, an outer ball engaging a respective detent formed in the respective side wall and an adjustment biasing element provided to engage the respective inner ball and the outer ball.
Dependencies are inferred from the claim text.