A rotational angioplasty device having a handle housing and an exchangeable drive shaft cartridge. The handle housing includes a rotatable prime mover carried by a prime mover carriage which is longitudinally movable with respect to the handle housing. The exchangeable drive shaft cartridge includes...http://www.google.com/patents/US6852118?utm_source=gb-gplus-sharePatent US6852118 - Self-indexing coupling for rotational angioplasty device
