| 摘要 |
A manually operated surgical steel rod cutter is disclosed. The rod cutter has a rod shearing tool head for cutting a rod when the rod is provided within aligned bores of two shearing subassemblies of the tool head. To cut the rod, an operator rotates an extendable handle to a substantially vertical position, inserts the rod in the tool head and rotates the handle to a substantially horizontal position. In order to increase the operator's shearing leverage, the handle can be extended from its retracted compact position by a linear pulling motion on a handle grip. The motion causes a handle extension that is adjacent and along the length of a first portion of the handle that has one end attached to the tool head, to extend from a sheath also attached to the first portion. The handle extension subsequently locks into an extended position when fully extended. The handle also has a vertical bow or bend which cooperates with a handle stop so that the handle not only rotates through an angle effective for shearing of rods but also limits handle movement in the horizontal direction so that an operator's hand on the handle grip does not contact the surface upon which the rod cutter rests.
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