Christopher Alan Oleksy - Maple Grove MN, US Roger Warren Brink - Muskegon MI, US
International Classification:
A61M 25/00 B29C 47/78
US Classification:
604523, 264150
Abstract:
A cannula comprising a polymeric material which is phthalate-free, yet retains flexibility, workability and elongation properties so as to avoid kinking when bent. Also disclosed is a method of manufacturing a cannular device comprising extruding a flexible, biocompatible, phthalate-free polymeric composition through a round die into a tube, pulling the tube through a water bath at a rate established according to a predetermined function, and cutting the tube to for a cannular device, wherein the predetermined function periodically modulates a pulling rate.