US Patent:
20090038752, Feb 12, 2009
Inventors:
Adel Weng - San Diego CA, US
William M. Appling - Granville NY, US
International Classification:
A61M 25/10
B32B 37/06
C09J 5/06
Abstract:
An inflatable balloon, and method of making same, for a medical catheter includes a base layer or non-compliant balloon substrate, a reinforcing layer, an adhesive. layer adhering the reinforcing layer to the non-compliant balloon substrate, and a top coat layer. The reinforcing layer is a single ply matrix of interwoven strands applied to the non-compliant balloon substrate. There are preferably three sets of strands in the single ply matrix. One set of strands extends in a longitudinal direction. Another set of strands extends circumferentially in a helical fashion with a clockwise orientation at an angle of approximately 65 with the strands that extend in the longitudinal direction. The third set of strands extends circumferentially in a helical fashion with a counter-clockwise orientation at an angle of approximately 65 with the strands that extend in the longitudinal direction. The three sets of strands are interwoven with one another by a braiding machine so as to provide a single ply of interwoven strands to achieve a uniform, reproducible reinforcing matrix.