| 摘要 |
A system for advancing a stent comprising a first stent-engaging member and a second stent-engaging member. The first stent-engaging member and the second stent-engaging member are each operably connected to a double crank, whereby, upon rotation of the double crank, the first stent-engaging member and the second stent-engaging member oscillate distally and proximally out of phase with each other. |
