Inflatable medical devices
First Claim
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1. An inflatable medical device comprising:
- a balloon comprising a constant-diameter section disposed between proximal and distal tapered sections arranged longitudinally along a longitudinal axis;
the balloon comprising a wall comprising a first layer extending over the constant-diameter section and the proximal and distal tapered sections, the first layer comprising a group of reinforcement fibers, each reinforcement fiber in the group of reinforcement fibers extending in the constant-diameter section and the proximal or distal tapered sections;
wherein each fiber in the group of reinforcement fibers is substantially parallel with the longitudinal axis and has a length less than 75% of a distance from a proximal end to a distal end of the balloon; and
wherein the group of reinforcement fibers comprises a first fiber and a second fiber arranged and configured within the wall such that a tensile load applied to the balloon transfers from the first fiber to the second fiber within the constant diameter section as a shearing load.
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Abstract
Inflatable medical devices and methods for making and using the same are disclosed. The devices can be medical invasive balloons, such as those used for transcutaneous heart valve implantation, such as balloons used for transcatheter aortic-valve implantation. The balloons can have high strength, fiber-reinforced walls.
373 Citations
23 Claims
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1. An inflatable medical device comprising:
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a balloon comprising a constant-diameter section disposed between proximal and distal tapered sections arranged longitudinally along a longitudinal axis; the balloon comprising a wall comprising a first layer extending over the constant-diameter section and the proximal and distal tapered sections, the first layer comprising a group of reinforcement fibers, each reinforcement fiber in the group of reinforcement fibers extending in the constant-diameter section and the proximal or distal tapered sections; wherein each fiber in the group of reinforcement fibers is substantially parallel with the longitudinal axis and has a length less than 75% of a distance from a proximal end to a distal end of the balloon; and wherein the group of reinforcement fibers comprises a first fiber and a second fiber arranged and configured within the wall such that a tensile load applied to the balloon transfers from the first fiber to the second fiber within the constant diameter section as a shearing load. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. An inflatable medical device comprising:
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a balloon comprising a constant-diameter section disposed between proximal and distal tapered sections arranged longitudinally along a longitudinal axis of the device; the balloon comprising a wall comprising a first layer extending over the constant-diameter section and the proximal and distal tapered sections, the first layer comprising a group of reinforcement fibers; wherein each fiber in the group of reinforcement fibers is substantially parallel with the longitudinal axis and has a length less than 75% of a distance from a proximal end to a distal end of the balloon; and wherein the group of reinforcement fibers comprises a first fiber extending in the constant-diameter section and the proximal tapered section and a second fiber extending in the constant-diameter section and the distal tapered section, the first and second fibers configured within the wall such that a tensile load applied to the balloon transfers from the first fiber to the second fiber within the constant diameter section. - View Dependent Claims (21)
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22. An inflatable medical device comprising:
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a balloon comprising a section having a substantially constant diameter disposed between proximal and distal tapered sections arranged longitudinally along a longitudinal axis of the device; the balloon comprising a wall comprising a first layer extending over the constant-diameter section and the proximal and distal tapered sections, the first layer comprising a group of reinforcement fibers including at least one fiber extending in the constant-diameter section from the proximal to distal tapered sections; wherein each fiber in the group of reinforcement fibers is substantially parallel with the longitudinal axis of the device and has a length less than 75% of the distance from a proximal end to a distal end of the inflatable medical device; and wherein the group of reinforcement fibers comprises a first fiber and a second fiber arranged and configured within the wall such that a tensile load applied to the balloon transfers from the first fiber to the second fiber within the constant diameter section. - View Dependent Claims (23)
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Specification