Method of joining tubing for use in medical catheters

摘要

The present application relates to method of arresting telescopic endwise relative movement in a medical device between an end portion of an elongate member, preferably being a cylinder, and an end portion of a tube, preferably being a cylindrical tube, that receives the end portion of the elongate member. The method is of particular use in the construction of stent delivery systems. In one embodiment, the method comprises providing a length of deformable blocking material; imparting relative endwise movement to draw the blocking material, into the gap and reversing the direction until the blocking material length suffers deformation.

主权项

1. A method of arresting telescopic endwise relative movement in a medical device between an end portion of an elongate member and an end portion of a tube that receives the end portion of the elongate member, the method comprising the steps of:
providing a length of deformable blocking sleeve material; attaching a leading end of the length to either an outer surface of the elongate member or an inner surface of the tube; imparting such relative endwise movement to the elongate member and the tube as will draw the leading end of the blocking sleeve material, followed by its length, into a gap between the elongate member and the tube; and reversing a direction of the relative endwise movement and continuing until the blocking sleeve material length suffers an endwise deformation so as to defeat any further reverse endwise movement, wherein the blocking sleeve material crumples or folds under the reversed relative endwise movement to provide increased friction.