| 主权项 |
1. A tool for tensioning a surgical cable around a bone comprising:
a housing; a shaft; a drum coupled to the shaft for rotation therewith relative to the housing, the shaft configured to rotate in a first winding direction to wind the surgical cable around the drum and in a second unwinding direction to unwind the surgical cable from the drum; a lock bearing positioned on a first side of the drum and comprising an inner bearing race coupled to the shaft for movement therewith and an outer bearing race, the outer bearing race locks relative to the inner bearing race to prevent the shaft from rotating in the second unwinding direction relative to the housing; a locking ring having a plurality of radially spaced pin apertures, the locking ring coupled to the outer bearing race of the lock bearing and selectively locked to the housing to prevent rotation of the outer bearing race of the lock bearing relative to the housing; an actuator bearing positioned on a second side of the drum and comprising an inner bearing race coupled to the shaft for movement therewith and an outer bearing race, the outer bearing race locking relative to the inner bearing race to rotate the shaft in the first winding direction; and an actuator lever coupled to the outer bearing race of the actuator bearing and moveable between a first position and a second position, such that in the first position, the actuator lever is in a neutral state with respect to the housing, and in the second position, the actuator lever is in a biased state away from the housing. |
