US 2001/0027329 A1 · High pressure catheter balloon

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® 8238 by DuPont. The balloon of the invention 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 of the invention exhibits high rupture pressure and low compliance coupled with good lesion cross and recross ability.

Claims29

Dependent claims

An inflatable single layered balloon for a medical device comprising a polymeric material the polymeric material being a substantially unblended copolymer of polybutylene terephthalate and polytetramethylene ether glycol terephthalate, the copolymer having a flexural modulus of greater than about 150,000 psi.

Dependencies are inferred from the claim text.

Facts

Application

09/880,983Filed 13 Jun 2001

Priority

21 Dec 1999

Published

4 Oct 2001

Term ends

Not estimatedThe source records don’t support an estimate.

Classification16 codes

B29C 49/18
Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor: using several blowing steps
A61L 29/06
Macromolecular materials: obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
A61L 29/14
Materials for catheters, medical tubing, cannulae, or endoscopes or for coating catheters: materials characterised by their function or physical…
A61M 25/1029
Making of balloon catheters: production methods of the balloon members, e.g. blow-moulding, extruding, deposition or by wrapping a plurality of…

High pressure catheter balloon

Life of this patent

High pressure catheter balloon

Life of this patent

Abstract

Claims29