Patent ID: 6746425
Filing Date: 2004-06-08
Classification: A61L,A61M,B29C,B29L,B32B,Y10T

Abstract:
A composite fiber-reinforced medical balloon suitable for angioplasty and having a long axis, the balloon comprising:an inner polymeric wall capable of sustaining pressure when inflated; a fiber/polymeric matrix outer wall comprising at least two layers of fiber and a polymer layer, the outer wall surrounding and reinforcing said inner polymeric wall, the fiber being high-strength, inelastic fiber; said fiber/polymeric matrix outer wall having a first fiber layer and a second fiber layer, wherein the fibers of the first fiber layer run substantially perpendicular to the fiber of the second fiber layer when the balloon is uninflated and remain substantially perpendicular when the balloon is inflated; the fibers of the first fiber layer being substantially equal in length to the length of the long axis of the balloon and running substantially longitudinally along the length of the long axis; and the fiber of the second fiber layer being winding radially around the long axis of the balloon substantially over the entire length of the long axis; and wherein the balloon has minimal radial distension.