Balloon catheter with multiple distensibilities
AssigneeAngioDynamics, Inc.
InventorBandula Wijay
Life of this patent
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Abstract
A balloon is disclosed that has two differing rates of distensibility. It can be used to perform angioplasty by taking advantage of its high strength and relatively low distensibility up to a predetermined range of pressure and still be used to set a stent by operating a pressure range where there is a higher distensibility. the balloon can be of a single material that is oriented less than fully or a blend of materials similarly oriented. In another embodiment, strands of a more crystalline material run longitudinally through a matrix of a less crystalline material, with the resulting balloon, when not fully biaxially oriented, exhibiting high burst strength and two different rates of distension at different applied inflation pressures.
Claims16
A dilution balloon catheter having multiple distensibilities for use in surgical procedures, comprising:
- a catheter body;
- a balloon on said body wherein said balloon has a lower rate of distensibility at a predetermined pressure level;
- said balloon having a higher rate of distensibility when said pressure level is increased;
- and
- said balloon is made of a single polymeric material which is oriented during fabrication to a level below that level previously determined for that material to be representative of substantially full biaxial orientation.
A dilution balloon catheter having multiple distensibilities for use in surgical procedures, comprising:
- a catheter body;
- a balloon on said body wherein said balloon has a lower rate of distensibility at a predetermined pressure level;
- said balloon having a higher rate of distensibility when said pressure level is increased;
- and
- said balloon is made of a blend of polymeric material which is oriented during fabrication to a level below that level previously determined for that blend to be representative of substantially full biaxial orientation.
A dilution balloon catheter having multiple distensibilities for use in surgical procedures, comprising:
- a catheter body;
- a balloon on said body wherein said balloon has a lower rate of distensibility at a predetermined pressure level;
- said balloon having a higher rate of distensibility when said pressure level is increased;
- and
- said balloon comprises two different materials, with one of said materials extending in at least one longitudinal strand in a matrix of the other material.
Dependencies are inferred from the claim text.