| 摘要 |
<p>A bone-tying cable tightening device with improved easiness of handling of is disclosed. The device comprises a grip portion, a rod-like member extending forward, a knot-supporting means at the tip, a cable-holding means to grip and hold the tow arms together, and a sliding block mounted around the rod-like member and connected to a pulling means, and an operation lever to drive the pulling means, wherein the knot-supporting means has smooth supporting faces on the both sides of which the two arms can be hooked away from each other and laterally above the rod-like member, wherein the cable-holding means comprises (a) a longitudinal through groove defined in the upper part of the sliding block, (b) a locking recess which extends, at the end of the through groove, either transversing the through groove in its cross section or covering the cross section of the through groove along its central axis, and whose width in its cross section widens in the rearward direction, (c) a backward biased locking member which is provided movably back and forth behind the locking recess on the upper side of the sliding block, and is so made that its forward movement is blocked when it fits in the locking recess.</p> |
