Patent ID: 11969372
Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 5:
6. The knee brace according to claim 1, wherein
the coupling part of each of the outer leg joint and the inner leg joint comprises:
a long groove provided in the lower arm or the upper arm;
a rotation fulcrum shaft that is provided in the upper arm or the lower arm and is slid in the long groove; and
a cam shaft that is provided in the lower arm or the upper arm and is slid in the cam groove, wherein

when the patient flexes the knee joint, the lower arm is configured to be rotated with respect to the upper arm along with the rotation fulcrum shaft sliding in the long groove and the cam shaft sliding in the cam groove, and
an area of the cam groove where the cam shaft is positioned when the knee joint is in the extended state is orthogonal to a longitudinal direction of the upper arm, or
the area of the cam groove of the outer leg joint is inclined in such a way that it goes downward toward an end part of the cam groove on the extending side, or
the area of the cam groove of the inner leg joint is inclined in such a way that it goes upward toward the end part of the cam groove on the extending side.