Patent ID: 8034066

Claim:
A medical device comprising: an inflatable balloon comprising a first layer comprising a material having a first modulus of elasticity; a second layer adjacent the first layer, the second layer comprising a material having a second modulus of elasticity greater than the first modulus of elasticity, the second modulus of elasticity in the range of about 200,000 psi to about 600,000 psi, wherein the second modulus of elasticity differs from the first modulus of elasticity by at least about 50,000 psi; a cutting element attached to the balloon; and a layer of adhesive disposed between the cutting element and an outer surface of the first layer; wherein the first layer is disposed outwardly of the second layer such that the first layer absorbs and distributes stresses imposed by the cutting element and the second layer provides high burst strength and low distention; and wherein each of the first and second layers has a thickness of at least 30 microns.