Medical device balloons with improved strength properties and processes for producing the same
AssigneeBoston Scientific Scimed, Inc.
InventorsLixiao Wang, John Jianhua Chen, Jeffrey S. Lindquist, Nao Pao Lee, Douglas A. Devens
Life of this patent
Estimating the term…
Abstract
A tubular parison for forming a medical device balloon. The parison is formed of a polymeric material, for instance a thermoplastic elastomer. The parison has an elongation at break which is not more than 80% of the elongation of the bulk polymeric material. The elongation of the parison is controlled by altering extrusion conditions. Balloons prepared from the parisons provide higher wall strength and/or higher inflation durability than balloons prepared from conventional parisons of the same material.
Claims9
A medical device balloon formed of a thermoplastic elastomer polymeric material and having a tensile wall strength in excess of 34,000 psi in pre-sterilized condition.
A medical device balloon formed of a thermoplastic elastomer polymeric material and having a tensile wall strength, in post-sterilized condition, of 32,000 psi or more.
Dependencies are inferred from the claim text.