Patent ID: 9625066
Date: 2017-04-18
CPC Classifications: A61M,B29C,B29D,B29K,B29L,F16L

Claim:
1. A plastic tubing, comprising: a thermoplastic ribbon helically wrapped and heat bonded to itself to form a tubing wall, wherein a first cross section of the thermoplastic ribbon across a width of the thermoplastic ribbon at a first end portion of the tubing wall has a greater area than a second cross section of the thermoplastic ribbon across the width of the thermoplastic ribbon, the second cross section of the thermoplastic ribbon located away from the first cross section of the thermoplastic ribbon along a length of the helically wrapped thermoplastic ribbon, and wherein a third cross section of the thermoplastic ribbon across the width of the thermoplastic ribbon at a second end portion of the tubing wall has approximately the same area as the first cross section of the thermoplastic ribbon, and wherein the second cross section of the thermoplastic ribbon is located between the third cross section of the thermoplastic ribbon and the first cross section of the thermoplastic ribbon along a length of the helically wrapped thermoplastic ribbon; and a helical thermoplastic reinforcement located around and along the tubing wall.