05556383 is referenced by 214 patents and cites 40 patents.

Balloons for medical devices, particularly balloon angioplasty catheters, are made from particular block copolymer thermoplastic elastomers in which the block copolymer is made up of hard segments of a polyester or polyamide and soft segments of polyether; the polyester hard segments are polyesters of an aromatic dicarboxylic acid and a C.sub.2 -C.sub.4 diol; the polyamide hard segments are polyamides of C.sub.6 or higher carboxylic acids and C.sub.6 or higher organic diamines or of C.sub.6 or higher aliphatic .omega.-amino-.alpha.-acids, and the polyether soft segments are polyethers of C.sub.2 -C.sub.10, diols; the block copolymer has a low flexural modulus, namely less than 150,000 psi; the block copolymer has a hardness, Shore D scale, of greater than 60; and the percentage by weight of the block polymer attributable to the hard segments is between about 50% and about 95%. The polymers provide high strength, thin wall, compliant and semi-compliant balloons, which leads to a low profile catheter. The low profile catheters have very good initial crossing, good trackability, good recrossing after first inflation.

Title
Block copolymer elastomer catheter balloons
Application Number
204554
Publication Number
5556383
Application Date
March 2, 1995
Publication Date
September 17, 1996
Inventor
Jianhua Chen
Brooklyn Park
MN, US
Lixiao Wang
Maple Grove
MN, US
Agent
Vidas Arrett & Steinkraus P A
Assignee
Scimed Lifesystems
MN, US
IPC
A61M 29/00
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