| 摘要 |
<p>EXPANSION AND COMPRESSION INSTRUMENT FOR FRACTURE Abstract A surgical tool (10) for performing at least one of relative compression and expansion of a first bone fragment and a second bone fragment in cooperation with a fixation plate, at least one fastener, and a fastener driver having a first end and a shaft, the surgical tool comprising: a first handle member (20) and a second handle member (30), the first and second handle members (20, 30) being operably coupled to each other; a fixation plate engaging member (50) coupled to the first handle member (20) and configured to releasably engage at least a portion of the fixation plate; a driver engaging member (100) pivotally coupled to the second handle member (30) and permitting at least one of replaceable and permanent securement of at least a portion of the fastener driver to the surgical tool, at least a portion of the fastener driver being angularly moveable relative to at least a portion of the second handle member (30) upon securement of the fastener driver to the driver engaging member (100); the driver engaging member (100) permitting free axial rotation of the fastener driver within the driver engaging member (100), but restricting angular and translational movement of the fastener driver along directions that are not parallel to a predominantly longitudinal axis of the fastener driver relative to the driver engaging member (100); wherein relative movement of the first and second handle members (20, 30) causes a spacing between the fixation plate engaging member (50) and the first end of the fastener driver to be altered; and wherein, following securement of the fastener driver to the driver engaging member (100), engagement of the fixation plate engaging member (50) to a portion of the fixation plate, and engagement of the first end of the fastener driver to a head of a fastener extending through a portion of the fixation plate, alteration in spacing between the fixation plate engaging member (50) and the first end of the fastener driver occurs along an axis parallel to a longitudinal axis of the fixation plate.</p> |
