| 摘要 |
<p>A retractable 'ball-pen' like tool/scalpel (40) provided with a latch mechanism (64) is automatically retracted when not in use by pushing the latch mechanism (64) and is extended when in use by pushing a tool/blade support member (45) of the tool/scalpel. The latch mechanism (64) is engaged with the tool/blade support member (45) when the tool/blade support member (45) is pushed an operative position wherein a tool/blade (46) is exposed from a sheath member (42). The latch mechanism (64) is pushed transversely and disengaged with the tool/blade support member (45) whereby the tool/blade support member (45) is biased back to an inoperative position wherein the tool/scalpel (46) is retracted into the sheath member (42).</p> |
