HIGH-PRESSURE BALLOON CATHETERS AND METHODS
Embodiments herein include high-pressure balloon catheters and methods for making the same. In an embodiment, a balloon catheter is included. The balloon catheter can include a catheter shaft and a balloon disposed on the catheter shaft. The balloon can include a wall member including an extruded material layer, a fibrous layer disposed to the outside of the extruded material layer, and at least one of a polyurethane composition and an epoxy composition contacting the fibrous layer. Other embodiments are also included herein.
1 . A balloon catheter comprising
a catheter shaft; and
a balloon disposed on the catheter shaft, the balloon comprising
a wall member, the wall member comprising
an extruded material layer;
a fibrous layer disposed to the outside of the extruded material layer; and
at least one of a polyurethane composition and an epoxy composition contacting the fibrous layer.
2 . The balloon catheter of claim 1 , the polyurethane composition binding the fibrous layer to the extruded material layer.
3 . The balloon catheter of claim 1 , the polyurethane composition comprising an aqueous polyurethane dispersion.
4 . The balloon catheter of claim 1 , the polyurethane comprising a cross-linkable polyurethane.
5 . The balloon catheter of claim 1 , the fibrous layer comprising braided yarn.
6 . The balloon catheter of claim 5 , the polyurethane composition surrounding the yarn within the fibrous layer.
7 . The balloon catheter of claim 1 , the epoxy composition binding the fibrous layer to the extruded material layer.
8 . The balloon catheter of claim 1 , the epoxy composition surrounding a yarn within the fibrous layer.
9 . The balloon catheter of claim 5 , the braided yarn comprising fibers comprising a material selected from the group consisting of aromatic aramid, polyethylene, and polyamide.
10 . The balloon catheter of claim 1 , the wall member further comprising a second extruded material layer.
11 . A balloon catheter comprising
a catheter shaft; and
a balloon disposed on the catheter shaft, the balloon comprising
a wall member, the wall member comprising
an inner first extruded material layer comprising a polyether block amide;
an outer second extruded material layer comprising a polyamide.
12 . The balloon catheter of claim 11 , the inner first extruded material layer having a first thickness, the outer second extruded material layer comprising a second thickness, the ratio of the first thickness to the second thickness from 1:1 to 1:8.
13 . The balloon catheter of claim 12 , the ratio of the first thickness to the second thickness being from 1:3 to 1:5.
14 . The balloon catheter of claim 12 , the ratio of the first thickness to the second thickness being 1:4.
15 . A balloon catheter comprising
a catheter shaft; and
a balloon disposed on the catheter shaft, the balloon comprising
a wall member, the wall member comprising
an extruded material layer;
a fibrous layer disposed to the outside of the extruded material layer;
the fibrous layer comprising fibers of a first fiber type and fibers of a second fiber type, wherein the first fiber type is compliant fibers and the second fiber type is non-compliant fibers.
16 . The balloon catheter of claim 15 , the first fiber type comprising polyamide fibers.
17 . The balloon catheter of claim 15 , the first fiber type comprising para-aramid fibers.
18 . The balloon catheter of claim 15 , wherein the fibers of the first fiber type and the fibers of the second fiber type are braided.
19 . The balloon catheter of claim 15 , wherein the fibers of the first fiber type and the fibers of the second fiber type are annealed together.
20 . The balloon catheter of claim 15 , wherein the fibers of the first fiber type are thermally deformed.