Patent ID: 6024749
Filing Date: 2000-02-15
Classification: A61B,F16D

Abstract:
A rotational atherectomy device comprising:a handle housing;a rotatable prime mover carried by a prime mover carriage which is disposed within the handle housing, the prime mover carriage being longitudinally movable with respect to the handle housing;an exchangeable drive shaft cartridge including:a cartridge housing which is removably attachable to the handle housing;a longitudinally movable tube disposed within the cartridge housing and having a proximal end portion which is removably attachable to the prime mover carriage for longitudinal movement therewith; anda rotatable flexible drive shaft having a proximal portion which is disposed within the longitudinally movable tube and a distal portion which includes a tissue removal implement; anda drive shaft attachment mechanism removably attaching the proximal portion of the drive shaft to the prime mover;a cartridge latch removably locking the cartridge housing to the handle housing; anda slide which is longitudinally movable with respect to the cartridge housing from a neutral position, where the cartridge latch is locked, to a cartridge unlocked position where the slide unlocks the cartridge latch, thereby permitting the cartridge housing to be removed from the handle housing.