| 摘要 |
Devices, especially orthotic, prosthetic and manipulative devices, articles of wear, and apparatus utilizing a coil spring are provided for self-adjustable support, flexion, and/or extension of limb members of a body joint. The devices have first and second support arms each having a planar face at one end joinable in co-axial face-to-face relation at a pivot point, in combination with a coplanar co-axial coil spring allowing for flexion and extension. The respective faces in one preferred embodiment have a range-of-motion guide channel and a channel-following stop member and at least one groove pair located on opposite sides of the channel for holding a stop bar across the channel to limit the range of motion of the stop member in the channel. In another preferred embodiment, one planar face has angularly spaced locking slots and the other has a pivotable locking blade that can be inserted into a selected locking slot and the edge of one of the planar faces has beveled guides enabling the coil spring under compression to be guided centrally to a position aligned with the planar faces.
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