Patent ID: 9421353
Filing Date: 2016-08-23
CPC Classification: A61B,A61M,B29C,B29D,B29L

Claim Text:
1. A method of manufacturing a length of a polymeric tubing member, the method comprising: providing a polymeric tubing member defining a lumen, where the tubing member is surrounded by spiral convolutions along at least a part of the length (L), and where the tubing member has a proximal convoluted section having a length (L modifying the initial proximal pitch of at least a part of the proximal convoluted section by stretching at least a part of the proximal convoluted section to achieve a modified proximal convoluted section with a modified proximal pitch between adjacent convolutions that is larger than the initial proximal pitch between adjacent convolutions; wherein the step of modifying the initial proximal pitch modifies an initial total length of the tubing member so that the modified total length is made at least 5.5% longer than the initial total length.