| 摘要 |
A prosthetic shoulder joint for mounting a prosthetic arm to the body provides for extension/flexion and abduction/adduction or can be locked. There are three major subunits: i) a circular boss (figure 1) secured to the body; ii) a boss connector (figure 3) for releasable connection to the boss; and iii) an arm connector (figure 5) to secure the prosthetic arm to the boss connector. The lateral face of the boss has circumferential holes (B, figure 1) and a central hole (A). The boss connector locates onto the boss and is secured to it by a pivoting sprung arm (figure 2) with a locating pin H to engage with the central hole of the boss and with a first locking pin J for engagement with the circumferential holes. The anterior and posterior sides of the boss connector have a central bore B to receive the arm connector and circumferential holes G to receive a second locking pin J on the arm connector. Upward movement of the sprung arm releases the prosthetic arm for removal from the boss. |
