Patent ID: 6358460
Filing Date: 2002-03-19
Classification: A61M,B29C,B29D,B29K,B29L,B32B

Abstract:
A method of manufacturing a multi-layer sheath, comprising the steps of:(a) preparing a first composition blend for forming an inner layer of the multi-layer sheath; (b) preparing a second composition blend for forming an outermost layer of the multi-layer sheath; (c) combining the first and the second composition blends into a multi-layer pre-form; (d) processing the multi-layer pre-form for producing coherent tubing; and (e) forming a tip at one end of the coherent tubing using a thermal process, thereby producing the multi-layer sheath having the inner layer, the outermost layer, and the formed tip, wherein the preparing in step (a) includes the substep of adding a detectable material to the first composition blend for facilitating external visualization of the multi-layer sheath.