High pressure catheter balloon
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United States of America Patent
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-
Aug 7, 2001
Grant Date -
N/A
app pub date -
Dec 21, 1999
filing date -
Dec 21, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A balloon formed of a single layer of polybutylene terephthalate and polytetramethylene ether glycol terephthalate copolymer in a substantially unblended form. The copolymer has a flexural modulus of greater than about 150,000 psi. The presently preferred copolymer is Hytrel.RTM. 8238 by DuPont. The balloon would be substantially unblended, defined as greater than about 60% by weight to about 100% by weight of the copolymer. The balloon is formed in a series of molds. The balloon exhibits high rupture pressure and low compliance coupled with good lesion cross and recross ability.
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