Slotted mold for making a catheter balloon

Details Slotted mold for making a catheter balloon Slotted mold for making a catheter balloon

2005-03-08

2005-03-08

Nolan, Sandra M. (Department: 1772)

Plastic and nonmetallic article shaping or treating: processes

Applying tensile stress to workpiece during heat curing

C264S235000, C264S236000, C264S291000, C264S296000, C264S327000, C264S346000, C264S347000, C264S3420RE, C264S3420RE, C264S519000, C264S529000, C264S530000, C264S534000, C264S535000, C264S570000

Reexamination Certificate

active

06863856

ABSTRACT:
A method of making a catheter balloon, and a balloon formed thereby, in which a polymeric tube is radially expanded in a mold having a wall with an outer surface and an inner surface defining a chamber, and having at least a section with one or more channels in the wall. The channels result in improved transfer of heat to the polymeric tube within the chamber of the mold during blow molding of the tube to form a balloon, so that the tube is heated more quickly and evenly. One aspect of the invention is directed to a balloon having sections with improved thin walls.

REFERENCES:
patent: 5304340 (1994-04-01), Downey
patent: 5522961 (1996-06-01), Leonhardt
patent: 5807520 (1998-09-01), Wang et al.
patent: 6013055 (2000-01-01), Bampos et al.
patent: 6117386 (2000-09-01), Stiger
patent: 6258099 (2001-07-01), Mareiro et al.
patent: 6328710 (2001-12-01), Wang et al.

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