CUTTING BALLOON WITH CONNECTOR AND DILATION ELEMENT
First Claim
1. A balloon catheter for dilation of a vessel wall, comprising:
- a balloon having a distal portion, and a proximal portion, wherein at least a length of an outer surface of the balloon comprises a working diameter adapted to dilate the vessel wall;
a shaft having a distal end and a proximal end, the balloon being mounted on the distal end of the shaft, wherein the shaft further comprises an inflation lumen extending therethrough in fluid communication with an interior region of the balloon, the balloon thereby being expandable between a deflated state and an inflated state;
a protuberance disposed along the outer surface of the balloon, the protuberance being affixed to the outer surface of the balloon at an interface region, the protuberance comprising a dilation element and a connector, the dilation element extending away from the outer surface of the balloon and being characterized by a second effective width, the connector connecting the dilation element to the outer surface of the balloon at the interface region, the connector characterized by a first effective width less than the second effective width of the dilation element.
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Accused Products
Abstract
A balloon catheter is provided that may be used to dilate hardened regions of a stenosis. The balloon catheter is provided with one or more dilation elements that extend along a surface of a balloon. Each dilation element is connected to an outer surface of the balloon by a connector. The connector is sufficiently sized and designed to undergo stress-induced plastic deformation incurred during blow molding so that a significant portion of each of the dilation elements does not become absorbed into the wall of the final blow molded balloon, thereby maintaining the structural integrity of each of the dilation elements.
27 Citations
20 Claims
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1. A balloon catheter for dilation of a vessel wall, comprising:
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a balloon having a distal portion, and a proximal portion, wherein at least a length of an outer surface of the balloon comprises a working diameter adapted to dilate the vessel wall; a shaft having a distal end and a proximal end, the balloon being mounted on the distal end of the shaft, wherein the shaft further comprises an inflation lumen extending therethrough in fluid communication with an interior region of the balloon, the balloon thereby being expandable between a deflated state and an inflated state; a protuberance disposed along the outer surface of the balloon, the protuberance being affixed to the outer surface of the balloon at an interface region, the protuberance comprising a dilation element and a connector, the dilation element extending away from the outer surface of the balloon and being characterized by a second effective width, the connector connecting the dilation element to the outer surface of the balloon at the interface region, the connector characterized by a first effective width less than the second effective width of the dilation element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification