Knee-joint orthesis having different medical and lateral hinge m

Details Knee-joint orthesis having different medical and lateral hinge m Knee-joint orthesis having different medical and lateral hinge m

1995-10-10

1998-04-21

Dvorak, Linda C.

Surgery: splint, brace, or bandage

Orthopedic bandage

Splint or brace

602 16, A61F 500

Patent

active

057412219

ABSTRACT:
In order to allow a knee-joint orthesis which is equipped with mounting structure for both the thigh and lower leg to take over the physiological movement of the knee-joint as precisely as possible, it is foreseen in accordance with the invention to connect the respective mounting structure pivotably by two intermediate rotation elements, whereby at least one rotation element includes a center of rotation which is displaceable relative to the mounting structures. The other rotation element includes preferably a center of rotation which is fixed relative to the mounting structures, and this rotation element is preferably arranged at the medial side of the knee-joint. Rotation elements with a displaceable center of rotation are designed preferably in form of a cross-over quadruple joint. The rotation element which possibly includes a fixed axis of rotation is formed preferably by a ball and socket joint. By this arrangement undesired influences of forces onto the knee-joint and the ligament apparatus of the knee-joint can be practically completely avoided.

REFERENCES:
patent: 2877033 (1959-03-01), Koetke
patent: 4241730 (1980-12-01), Helfet
patent: 4256097 (1981-03-01), Willis
patent: 4407276 (1983-10-01), Bledsoe
patent: 4531515 (1985-07-01), Rolfes
patent: 4628916 (1986-12-01), Lerman et al.
patent: 4966133 (1990-10-01), Kausek

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