| 摘要 |
<p>A medical laser device is disclosed comprising a laser source and an optical fibre which is inserted in use within an introducer sheath. A withdrawal assist device is provided to assist a user to withdraw the optical fibre and/or the introducer sheath at a controllable rate. The introducer sheath may have graduations provided on an outer surface of the sheath which are detected by the withdrawal-assist device.</p> |
