Joints and connections – Articulated members – Lockable at fixed position
Patent
1989-10-25
1991-08-13
Reese, Randolph A.
Joints and connections
Articulated members
Lockable at fixed position
403 62, 403 84, 403113, 128 80C, 128 80F, A61F 300
Patent
active
050392476
ABSTRACT:
An orthopedic and orthotic hinge having a hinge body that includes two spaced, parallel plates with two hinge arm carriers having end portions pivotally mounted between the plates for movement in directions of flexion and extension. The end portions of the hinge arm carriers have peripheral teeth that respectively engage two toothed slide members. Such members are slidably disposed between the plates, preferably carried in grooves formed therein, and are independently movable with respect to each other when the hinge arm carriers are pivoted. First and second variable stops are provided by the hinge for limiting the extent of sliding movement in opposite directions of the two slide members, thereby restricting extension and flexion of the hinge arm carriers while at the same time permitting true bi-pivotal operation of the hinge. In one embodiment, the variable stops are offset from the midplane of the hinge body and the toothed slide members have extensions engageable with such stops.
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Davis Kenneth P.
Young David E.
De Liguori Franco S.
Protectair Limited
Reese Randolph A.
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