Prosthetic knee
AssigneeCollege Park Industries, Inc.
InventorsRyan William WAHL, Jonathan Thomas COOK
Life of this patent
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Abstract
A prosthetic knee is equipped with a lock-mode selection assembly that includes a locking member designed to restrict the rotation of the prosthetic knee at the pivot joint. The locking member is operable through both a manual lock mode selector and a remote locking mechanism. The prosthetic knee incorporates a compressible link assembly that facilitates adjustable stance flexion. The assembly features an adjustment fastener that allows for the modification of the distance over which a spring stack may be compressed.
Claims20
A prosthetic knee comprising:
- a housing;
- a chassis;
- a pair of anterior rods connecting the housing to the chassis, the anterior rods connected to the housing at first upper pivot joints and to the chassis at first lower pivot joints;
- and
- a posterior compressible link assembly connecting the housing to the chassis, the compressible link assembly connected to the housing at a second upper pivot joint and to the chassis at second lower pivot joints;
- wherein the housing includes a lock-mode selection assembly having a locking member arranged to arrest rotation of the compressible link assembly at the second upper pivot joint;
- wherein the locking member is operable by both a manual lock mode selector and a remote locking mechanism.
A prosthetic knee comprising:
- a housing;
- a chassis;
- a pair of anterior rods connecting the housing to the chassis, the anterior rods connected to the housing at first upper pivot joints and to the chassis at first lower pivot joints;
- and
- a posterior compressible link assembly connecting the housing to the chassis, the compressible link assembly connected to the housing at a second upper pivot joint and to the chassis at second lower pivot joints;
- wherein the compressible link assembly includes a first member, a second member, and an inner link member disposed between the first member and the second member;
- wherein the first member is attached to the housing at the second upper pivot joint and the second member is attached to the chassis at the second lower pivot joints;
- wherein the first member defines a chamber within which the inner link member is arranged to move axially along a compression axis.
A prosthetic knee comprising:
- a housing;
- a chassis;
- a pair of anterior rods connecting the housing to the chassis, the anterior rods connected to the housing at first upper pivot joints and to the chassis at first lower pivot joints;
- and
- a posterior compressible link assembly connecting the housing to the chassis, the compressible link assembly connected to the housing at a second upper pivot joint and to the chassis at second lower pivot joint;
- wherein the housing includes a lock-mode selection assembly having a locking member arranged to arrest rotation of the compressible link assembly at the second upper pivot joint;
- wherein the locking member is operable by both a manual lock mode selector and a remote locking mechanism;
- wherein the compressible link assembly includes a first member, a second member, and an inner link member disposed between the first member and the second member;
- wherein the first member is attached to the housing at the second upper pivot joint and the second member is attached to the chassis at the second lower pivot joints;
- wherein the first member defines a chamber within which the inner link member is arranged to move axially along a compression axis.
Dependencies are inferred from the claim text.