Catheter balloon having raised radial segments
First Claim
1. A balloon for attachment to a catheter shaft for introduction into a human body conduit, said balloon having a longitudinal axis defining a length thereof and a radial surface defined by a circumference of said balloon, said balloon comprising:
- a balloon envelope defining a portion of said balloon, said balloon envelope having a textured surface extending radially around a portion of the circumference of said balloon, said textured surface having a height which varies relative to said radial surface over at least a portion of said length of said balloon; and
at least one longitudinal reduced-texture strip extending over at least said portion of said length of said balloon on said envelope surface.
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Accused Products
Abstract
A dilation balloon for a catheter with improved folding characteristics for insertion into a body conduit. The balloon surface is generally textured, having a reduced texture longitudinal strip causing preferential controlled folding along the strip. The preferential folding creates curved wings which fold together upon further deflation. The curved, folded wings result in a decreased profile having wing edges oriented so as to decrease contact with conduit walls. A preferred embodiment has raised radial ridges extending around a portion of the circumference of the balloon and a smooth longitudinal surface radially therebetween.
137 Citations
26 Claims
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1. A balloon for attachment to a catheter shaft for introduction into a human body conduit, said balloon having a longitudinal axis defining a length thereof and a radial surface defined by a circumference of said balloon, said balloon comprising:
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a balloon envelope defining a portion of said balloon, said balloon envelope having a textured surface extending radially around a portion of the circumference of said balloon, said textured surface having a height which varies relative to said radial surface over at least a portion of said length of said balloon; and at least one longitudinal reduced-texture strip extending over at least said portion of said length of said balloon on said envelope surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A balloon catheter for introduction into a body conduit, said catheter having a shaft with a proximal end and a distal end with a distal region proximate said distal end, said catheter comprising:
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a balloon having a longitudinal length and radial circumference defining the outside diameter thereof attached to said shaft distal region; a balloon envelope, said balloon envelope having a textured surface extending around a portion of said circumference, said textured surface having a height which varies relative to said circumference over at least a portion of said length of said balloon; and at least one longitudinal reduced-texture strip on said envelope surface, whereby said reduced-texture strip provides a preferential folding region on said envelope surface. - View Dependent Claims (18, 19, 20, 21, 22)
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23. A medical balloon for attachment to a catheter shaft for subsequent introduction into a human body conduit, said balloon having a longitudinal axis defining a length thereof and a radial surface defined by a circumference of said balloon, said balloon comprising:
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a balloon envelope, said balloon envelope having a textured surface, said textured surface having a height which varies relative to said radial surface over at least a portion of said length of said balloon; and a preferential folding means on said envelope surface. - View Dependent Claims (24, 25, 26)
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Specification