Patent ID: 11931309
Assignee: SUNCALL CORPORATION
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. An actuator unit attachable to a knee-ankle-foot orthosis including a thigh attachment and a lower leg attachment to be respectively attached to user's thigh and lower leg, a thigh frame and a lower leg frame respectively supporting the thigh attachment and the lower leg attachment, and a brace-side rotational connecting part connecting the thigh frame and the lower leg frame such that the lower leg frame is rotatable relative to the thigh frame around a brace-side pivot axis that is coaxial with a swing axis of a user's knee joint, the actuator unit comprising:
an upper frame connectable to the thigh frame;
a lower frame connectable to the lower leg frame;
an actuator-side rotational connecting part connecting the upper and lower frames such that the lower frame is rotatable around an actuator-side pivot axis relative to the upper frame;
a driver mounted on an outer surface of the upper frame and producing a driving force for rotating the lower frame around the actuator-side pivot axis;
an upper connecting body connecting the upper frame to the thigh frame;
an intermediate connecting body connecting a vicinity of the actuator-side rotational connecting part to a vicinity of the brace-side rotational connecting part;
a lower connecting body connecting the lower frame to the lower leg frame such that the lower leg frame is rotated around the brace-side pivot axis relative to the thigh frame by utilizing a rotational movement of the lower frame around the actuator-side pivot axis relative to the upper frame; and
the intermediate connecting body being provided with a ball stud provided on one of the knee-ankle-foot orthosis and the actuator unit concentrically with the corresponding pivot axis, and an accommodation depression that is provided on another of the knee-ankle-foot orthosis and the actuator unit concentrically with the corresponding pivot axis in such a manner that a spherical head part of the ball stud is rotatably and detachably accommodated in the accommodation depression.