| 摘要 |
There is disclosed herein a device for moving an elongate member by a predetermined distance relative to an elongate body through which it at least partially extends, thereby to release a stent at the distal end of the elongate body, the device comprising: a take-up reel (21) onto which the elongate member is wound when it is moved; and a limiter that is configured to limit further rotation of the take-up reel after a length of the elongate member has been taken up on the reel to move the elongate member said pre-determined distance, wherein the limiter comprises a tethered line (52), which is configured to be progressively consumed when the take-up reel (21) is rotated until the tethered line anchors the take-up reel against further rotation, one end of the tethered line being provided with a line connector by which it may be attached to a limiter reel (53) on which it is to be taken up to be consumed, and wherein the limiter reel is provided with plural reel connectors to which the line connector may be connected to attach the tethered line to the limiter reel. There is also disclosed a related surgical apparatus. |
