Cutting balloon catheter having flexible atherotomes
First Claim
Patent Images
1. A cutting balloon catheter, comprising:
- an elongate catheter shaft;
a balloon coupled to the catheter shaft;
a flexible joining member mounted on the balloon; and
a monolithic cutting member having a base portion embedded in the flexible joining member, the monolithic cutting member including a first cutting edge portion and a second cutting edge portion discontinuous with the first cutting edge portion;
the base portion of the monolithic cutting member including a plurality of openings extending from a first side of the base portion to a second side of the base portion opposite the first side;
the base portion of the monolithic cutting member including a plurality of gaps, with one of the plurality of gaps extending from one of the plurality of openings to a bottom surface of the base portion;
wherein each of the plurality of gaps has a width less than a width of each of the plurality of openings.
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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 configured to be more flexible.
321 Citations
20 Claims
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1. A cutting balloon catheter, comprising:
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an elongate catheter shaft; a balloon coupled to the catheter shaft; a flexible joining member mounted on the balloon; and a monolithic cutting member having a base portion embedded in the flexible joining member, the monolithic cutting member including a first cutting edge portion and a second cutting edge portion discontinuous with the first cutting edge portion; the base portion of the monolithic cutting member including a plurality of openings extending from a first side of the base portion to a second side of the base portion opposite the first side; the base portion of the monolithic cutting member including a plurality of gaps, with one of the plurality of gaps extending from one of the plurality of openings to a bottom surface of the base portion; wherein each of the plurality of gaps has a width less than a width of each of the plurality of openings. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A cutting balloon catheter, comprising:
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an elongate catheter shaft including an outer tubular member and an inner tubular member extending through the outer tubular member; a balloon having a proximal waist secured to the outer tubular member and an distal waist secured to the inner tubular member; a flexible joining member mounted on the balloon; and a monolithic cutting member having a longitudinal axis, the monolithic cutting member having a base portion embedded in the flexible joining member and a cutting edge extending from the flexible joining member along the longitudinal axis, the cutting edge of the monolithic cutting member including a first cutting edge portion and a second cutting edge portion discontinuous with the first cutting edge portion; the base portion of the monolithic cutting member including a plurality of openings extending from a first side of the base portion to a second side of the base portion opposite the first side; the base portion of the monolithic cutting member including a plurality of gaps, with one of the plurality of gaps extending from one of the plurality of openings to a bottom surface of the base portion; wherein each of the plurality of gaps has a width measured along the longitudinal axis less than a width measured along the longitudinal axis of each of the plurality of openings. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification