| 摘要 |
<p>A handle for providing flow of pressurised fluid from a detachable fluid supply tube into a lumen of a flexible drive shaft (400) carrying an abrasive element (1) mounted to the drive shaft proximal to and spaced away from its distal end. The handle comprises an elongate prime mover housing (220) and a hollow prime mover shaft (210) rotatably mounted within the prime mover housing. A proximal end portion of the flexible drive shaft (600) is connected to a distal end portion of the hollow prime mover shaft for rotation together with the prime mover shaft. The handle also comprises a coupling member (190) which supports a stationary fluid supply tube (177) coaxial with and permanently received within a proximal end portion of the hollow prime mover shaft. The prime mover shaft is rotatable around the stationary fluid supply tube and a detachable fluid supply tube (234) is releasably connectable to the handle for providing flow of pressurised fluid from the detachable fluid supply tube into the lumen of the flexible drive shaft via the stationary fluid supply tube and the hollow prime mover shaft. A method of assembling the handle, using an inflatable mandrel, is also provided.</p> |
