Surgery – Truss – Perineal
Patent
1977-09-12
1979-02-13
Yasko, John D.
Surgery
Truss
Perineal
128 88, 2 22, A61F 300
Patent
active
041390024
ABSTRACT:
A knee brace or orthosis for preventing hyperextension of the wearer's leg. In an additional embodiment the flexion of the wearer's leg is also regulated between positions permitting limited motion and a position wherein the knee is fixed and no motion is permitted. In its simplest form the orthosis includes upper and lower forward members and a rear member to which the upper and lower forward members are independently and pivotally attached. The forward rotational movement of the forward upper member is limited by abutting contact between opposed edges of the forward members, thus preventing rearward bending or hyperextension of the leg while permitting flexion. In the alternate embodiment, an upper rear member is provided and includes means for contacting upper portions of the rear member so as to limit flexion movement. In both cases the members are formed from relatively thin lightweight plastic material which has been at least partially shaped to custom conform to the dimensions of the wearer's leg.
REFERENCES:
patent: 412213 (1889-10-01), Turner
patent: 859962 (1907-07-01), Messersmith
patent: 3528412 (1970-09-01), McDavid
patent: 3898697 (1975-08-01), Whitehead
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