Medical balloon devices and methods
First Claim
Patent Images
1. A medical balloon cover having a longitudinal axis comprising:
- a balloon cover comprising at least one expanded fluoropolymer material,wherein said expanded fluoropolymer material comprises a plurality of serpentine fibrils,wherein the balloon cover is wrapped at a delivery diameter, the balloon cover being substantially wrinkle free at the delivery diameter, andwherein the balloon cover has a nominal diameter that is at least 3 times greater than the delivery diameter of the balloon cover upon expansion by a balloon.
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Accused Products
Abstract
A balloon or balloon cover comprising a composite material having a least one expanded fluoropolymer material and an elastomer is provided. The expanded fluoropolymer material can contain serpentine fibrils. In exemplary embodiments, the fluoropolymer is polytetrafluoroethylene. The composite material may be axially, helically, and/or circumferentially wrapped to form a balloon or balloon cover. The balloon or balloon cover exhibits a sharp increase in stiffness at a predetermined diameter. The balloon or balloon cover can be designed to have a stop point in either a radial or axial direction.
119 Citations
34 Claims
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1. A medical balloon cover having a longitudinal axis comprising:
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a balloon cover comprising at least one expanded fluoropolymer material, wherein said expanded fluoropolymer material comprises a plurality of serpentine fibrils, wherein the balloon cover is wrapped at a delivery diameter, the balloon cover being substantially wrinkle free at the delivery diameter, and wherein the balloon cover has a nominal diameter that is at least 3 times greater than the delivery diameter of the balloon cover upon expansion by a balloon. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A medical balloon cover having a longitudinal axis comprising
a balloon cover comprising at least one expanded fluoropolymer material, wherein said expanded fluoropolymer material comprises a plurality of serpentine fibrils, wherein said balloon cover is circumferentially wrapped at a delivery diameter in which the serpentine fibrils are arranged in a circumferential direction, wherein said balloon cover can be radially expanded up to a nominal diameter beyond which further expansion is inhibited by expansion of a balloon, and wherein said nominal diameter is at least 3 times greater than the delivery diameter; wherein the balloon cover is circumferentially wrapped at the delivery diameter such that the balloon cover is substantially wrinkle free at the delivery diameter. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
Specification