Textile balloon catheters
View Patent ↗Textile balloon catheters, textile sleeves useful in balloon catheters, and methods of making balloon catheters are described. An example catheter includes an elongate shaft and a balloon movable between uninflated and inflated configurations, and a textile sleeve secured to the balloon. The textile sleeve has a plurality of warp threads and at least one weft thread extending circumferentially around the balloon. Circumferential loops in the portion of the textile sleeve that is secured to the body of the balloon are larger in diameter than circumferential loops in the portion of the textile sleeve that is secured to one or more of the proximal neck, distal neck, proximal cone and distal cone portions of the balloon.
1. A method of making a catheter, comprising:
placing a textile sleeve having a plurality of warp threads and at least one weft thread on a mandril;
engaging a weft thread of the textile sleeve with a tool;
moving the engaged weft thread away from the remainder of the textile sleeve to form an extended weft loop;
manipulating the extended weft loop;
securing the textile sleeve to a balloon; and
securing the balloon to an elongate member defining a lumen such that movement of fluid through the lumen moves the balloon between inflated an uninflated configurations.
2. The method of claim 1 , wherein the step of manipulating the extended weft loop comprises cutting the extended weft loop to create free ends of the weft thread.
3. The method of claim 2 , further comprising knotting the free ends to each other.
4. The method of claim 2 , further comprising securing the free ends to the balloon.
5. The method of claim 2 , further comprising weaving at least one of the free ends into the textile sleeve.
6. The method of claim 1 , wherein the step of manipulating the extended weft loop comprises wrapping the extending weft loop around a portion of the textile sleeve.
7. The method of claim 6 , further comprising securing the extended weft loop to the textile sleeve.
8. The method of claim 1 , wherein the step of manipulating the extended weft loop comprises weaving the extended weft loop into the textile sleeve.
9. The method of claim 1 , wherein the steps of engaging a weft thread and moving the engaged weft thread are repeated to create a second extended weft loop.
10. The method of claim 1 , wherein the steps of engaging a weft thread and moving the engaged weft thread are repeated multiple times to create multiple extended weft loops.
11. The method of claim 1 , wherein the step of securing the textile sleeve to a balloon comprises fusing the textile sleeve and a balloon together.
12. The method of claim 1 , wherein the step of securing the textile sleeve to a balloon comprises using an adhesive to adhere the textile sleeve and a balloon to each other.
13. The method of claim 1 , wherein the step of manipulating the extended weft loop is performed prior to the step of securing the textile sleeve to a balloon.
14. The method of claim 1 , wherein the step of manipulating the extended weft loop is performed after the step of securing the textile sleeve to a balloon.
15. The method of claim 1 , wherein the steps of manipulating the extended weft loop and securing the textile sleeve to a balloon are performed contemporaneously.
16. A method of making a catheter, comprising:
moving a weft thread away from the remainder of a textile sleeve comprising the weft thread and at least one warp thread to form an extended weft loop;
manipulating the extended weft loop;
securing the textile sleeve to a balloon precursor;
transforming the balloon precursor into a balloon suitable for use in said catheter; and
securing the balloon to an elongate member defining a lumen such that movement of fluid through the lumen moves the balloon between inflated an uninflated configurations.