Process and apparatus for forming medical device balloons

Details Process and apparatus for forming medical device balloons Process and apparatus for forming medical device balloons

2007-09-04

2007-09-04

Davis, Robert B. (Department: 1722)

Plastic article or earthenware shaping or treating: apparatus

Means applying electrical or wave energy directly to work

Radiated energy

C425S526000, C264S521000, C264S454000, C264S458000, C264S482000, C264S492000

Reexamination Certificate

active

10753043

ABSTRACT:
Medical device balloons are formed from a tubular parison by a process or apparatus which establishes a controlled location (initiation zone) on the parison where radial expansion is initiated. Initiation within the initiation zone is achieved by heating the parison in that location to a higher temperature than the remainder of the parison for at least a portion of the blowing time. A variety of apparatus configurations are provided, some of which allow for the size and location of the initiation zone to be readily reconfigured. Balloons can also be modified, post-blowing, using heating apparatus and methods described.

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