Patent ID: 11931251
Assignee: EDWARDS LIFESCIENCES CORPORATION
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 2:
3. The delivery apparatus of claim 2, wherein the distal tip portion is axially movable from a first position where the distal tip portion is arranged away from and off the balloon and the distal end portion of the first shaft extends distally past the distal end of the distal tip portion, to a second position wherein the distal tip portion is arranged over a proximal end portion of the balloon and a distal end portion of the third shaft surrounds the distal end portion of the first shaft, and wherein the plurality of internal helical expansion grooves are configured to reduce engagement between pleats of the balloon and the plurality of internal helical expansion grooves when the balloon is rotated with rotation of the first shaft when the distal tip portion is in the second position.