| 摘要 |
A crimp tool for deforming a crimp tube (10) around wires used in surgical procedures has a pair of relatively long handles (107, 108) pivotal about a rear pivot axis (106). Each handle extends forwardly of the rear pivot axis (106) to form a rear jaw member (101a, 101b). The handles have co-operating cam surfaces formed thereon so that when the handles are pivoted towards one another, the free ends of the rear jaw members move apart. The free ends of the rear jaw members (101a, 101b) each carry an intermediate pivot (103, 104). Forward jaw members (111, 112) are pivotable about the intermediate pivot (103, 104) and are pivotable about a common forward pivot axis (110). The forward jaw members (111, 112) extend forwardly of the forward pivot axis (110) so that the forward end portions thereof may engage the crimp tube to deform it. The length of the handles (107, 108) is substantially greater than the length of the rear jaw members (101a, 101b) and the length of the forward jaw members (111, 112) is substantially greater than the length of the forward end portions thereof. Consequently, the compressive force applied by the forward end portions of the foward jaw members is substantially greater than the compressive force applied by a user to the handles (107, 108). A latching ratchet system prevents interruption of the crimping operation before an adjustable completion state. Alternatively, a visual indicator gives information concerning the pressure exerted. |
