Non-shortening wrapped balloon
First Claim
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1. A method of creating a non-shortening balloon with increased burst pressures, said balloon comprising:
- a) wrapping a mandrel with at least one first balloon material to form a balloon preform;
b) exposing the first balloon material to heat;
c) removing the mandrel;
d) exposing the balloon preform to internal pressure at a reflow temperature;
e) inflating the balloon preform into a balloon as it is continued to be exposed to said internal pressure at an increased temperature; and
f) removing heat and internal pressure;
wherein upon inflating the balloon preform, said balloon preform foreshortens less than 2 percent.
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Accused Products
Abstract
A non-shortening catheter balloon having a longitudinal axis and an inflatable balloon able to be affixed to a catheter shaft is provided. The balloon has an uninflated length which remains relatively unchanged upon inflation and is formed of least two helically oriented wrapped passes of balloon materials at a balanced force angle. Methods of making this balloon are also provided.
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Citations
13 Claims
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1. A method of creating a non-shortening balloon with increased burst pressures, said balloon comprising:
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a) wrapping a mandrel with at least one first balloon material to form a balloon preform; b) exposing the first balloon material to heat; c) removing the mandrel; d) exposing the balloon preform to internal pressure at a reflow temperature; e) inflating the balloon preform into a balloon as it is continued to be exposed to said internal pressure at an increased temperature; and f) removing heat and internal pressure; wherein upon inflating the balloon preform, said balloon preform foreshortens less than 2 percent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of creating a non-shortening catheter balloon with increased burst pressures, comprising:
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a) wrapping a wire core with a plurality of first balloon material layer at a low angle; b) further wrapping with a plurality of first balloon material at a low angle in the opposite direction of a) relative to the longitudinal balloon axis; c) exposing the plurality of first balloon material layers to heat to bond them together creating a preform; d) removing the wire core; e) placing the balloon preform in a mold and exposing the balloon preform to internal pressure; f) inflating the balloon preform as it is continued to be exposed to said internal pressure creating a balloon; g) removing the balloon from the mold; h) wrapping the inflated balloon with second balloon material layers oriented at an angle between 54 and 90 degrees; and i) bonding the first and second balloon material wherein upon inflating the balloon preform, said balloon preform foreshortens less than 2 percent. - View Dependent Claims (10, 11, 12, 13)
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Specification