Cutting balloon catheter having a segmented blade
First Claim
Patent Images
1. A medical device, comprising:
- an elongate shaft having a distal end region;
a balloon coupled to the distal end region; and
a cutting member coupled to the balloon, the cutting member having a cutting surface, a base, a first segment, a second segment, and a bridge segment extending between the first segment and the second segment, wherein the bridge yields when flexed beyond a selected curvature during use.
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Accused Products
Abstract
A cutting balloon catheter and method of making and using the same. The cutting balloon catheter may include a catheter shaft having a balloon coupled thereto. One or more cutting members or blades may be coupled to the balloon. The cutting members may include two or more sections that are connected via a fracturable or yielding bridge section that increases flexibility when passing through or being utilized in tortuous anatomy.
117 Citations
33 Claims
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1. A medical device, comprising:
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an elongate shaft having a distal end region;
a balloon coupled to the distal end region; and
a cutting member coupled to the balloon, the cutting member having a cutting surface, a base, a first segment, a second segment, and a bridge segment extending between the first segment and the second segment, wherein the bridge yields when flexed beyond a selected curvature during use. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A cutting balloon catheter, comprising:
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an elongate catheter shaft;
a balloon coupled to the catheter shaft;
a joining member coupled to the balloon; and
a cutting member coupled to the joining member, the cutting member including a cutting surface extending from a base having a first section and a second section with a bridge disposed therebetween, wherein the bridge selectively yields in response to curvature of the vasculature during use. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A method of using a cutting balloon catheter, comprising the steps of:
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providing a cutting balloon catheter, the cutting balloon catheter including an elongate catheter shaft, a balloon coupled to shaft, and one or more cutting members coupled to the balloon, the cutting members each including a cutting surface extending from a base including a first section and a second section with a bridge disposed between the first section and the second section that yields when flexed beyond a selected curvature;
advancing the cutting balloon catheter through a blood vessel to a position adjacent an area of interest;
inflating the balloon, whereby the balloon and the cutting members engage the area of interest;
deflating the balloon; and
withdrawing the cutting balloon catheter from the blood vessel. - View Dependent Claims (31, 32, 33)
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Specification