| 摘要 |
<p>A surgical instrument comprising an elongate reusable handle and disposable, interchangeable sheathed blade modules. Each sheathed blade module including an elongate tubular sheath having a laterally arced blade guiding forward end portion of either a cylindrical or tubular configuration. The arced portion defines a guide path for a blade received within the sheath. The blade, through interconnection with a slide member on the handle module, is selectively moved between a first protected position entirely within the sheath and a second position wherein the surgical tip portion of the blade is exposed. outward movement of the blade tip portion is directed along a predetermined path by the curved forward end portion of the sheath, while at the same time providing for a complete exposure of the blade tip portion beyond the structure of the sheath. The slide member of the sheath is controlled by a single finger of the one hand used to hold the handle module.</p> |
