Method of manufacture of semi-compliant catheter balloons
First Claim
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1. A method for making a biaxially oriented catheter balloon, comprising:
- a) providing a material selected from the group consisting of acrylonitrile homopolymer, acrylonitrile copolymer, and acrylonitrile blend;
b) extruding said material to form an extruded tube;
c) heat setting said extruded tube to form a heat set tube;
d) longitudinally drawing said heat set tube to form a drawn tube;
e) radially expanding said drawn tube to form a balloon member; and
f) heat setting said balloon member to form a heat set balloon member.
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Abstract
The present invention relates to catheter balloons for medical devices. In particular, the present invention provides biaxially oriented semi-compliant catheter balloons comprising acrylonitrile polymers, acrylonitrile copolymers, and acrylonitrile blends, and methods of making same. The catheter balloons provided herein exhibit relatively high tensile strength, controlled compliance, reduced tendency for pinholing, ease of coating with and of bonding to other compounds, as well as resistance to moisture.
99 Citations
39 Claims
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1. A method for making a biaxially oriented catheter balloon, comprising:
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a) providing a material selected from the group consisting of acrylonitrile homopolymer, acrylonitrile copolymer, and acrylonitrile blend;
b) extruding said material to form an extruded tube;
c) heat setting said extruded tube to form a heat set tube;
d) longitudinally drawing said heat set tube to form a drawn tube;
e) radially expanding said drawn tube to form a balloon member; and
f) heat setting said balloon member to form a heat set balloon member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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Specification