A number of embodiments of a support for a portion of a limb of a user are described. In one embodiment, the support comprises a frame, and a platform movably connected with the frame such that the platform is variably positionable with respect to the frame. A supporting member is constructed to simultaneously support a wrist and a portion of an arm of the user. A supporting member bearing structure connects the platform with the supporting member such that the supporting member is multi-directionally movable with respect to the frame and the platform.
An orthopedic traction tower system, and components thereof, for use in surgery, fracture repair, and/or radiography. The traction tower system may include a base for receiving the proximal end of a patient's limb, a tower arm for applying tractive forces to a distal end of a patient's limb, and a joint that movably connects the base and the tower arm such that the tower arm can be positioned for surgical access and/or for applying different types of traction, among others.
An arm assembly includes an outer stem (52) and an inner stem (50) slidable in the outer stem and including a number of recesses (107) along its length. A biased locking device (117) engages one or more of the recesses (107) to lock the position of the inner stem (50) relative to the outer stem (52). A release member (103) operably connected to an actuator (101) has a number of recesses (110) and raised surfaces (112), the release member (103) slidable relative to the inner stem (50) between a first position in which recess(es) (110) in the release member is/are aligned with recess(es) (107) of the inner stem and the locking device (117) engages recess(es) in the stem (50) to inhibit movement thereof relative to the outer stem, and a second position in which raised surface(s) (112) of the release member align(s) with recess(es) (107) of the stem (50) to disengage the locking device from the recess(es) of the stem.
An arm assembly (24) is provided for a chair (12). The chair (12) has a forward direction and a rearward direction. The arm assembly (24) includes an armrest (26) and a support structure (28). A mounting device movably mounts the armrest to the support structure. The mounting device constrains the movement of the armrest (26) relative to the support structure to movement in a substantially horizontal plane having two degrees of freedom defined by first and second transversely arranged axes lying within the substantially horizontal plane. The armrest (26) thus move in a substantially planar fashion without changing the orientation of the armrest (26).
