Catheter shaft comprising welded tubes

摘要

The catheter shaft comprises a first tube (1) made of an extrudable fluorinated copolymer that has reactive groups, and a second tube (2) made of a polymeric material. The second tube is welded to the first tube. The polymeric materials of the first and second tubes are configured to achieve welded attachment with welding performed at a temperature of 200[deg] C. The tubes are welded to one another and unchanged at a pressure of 20 bar for >= 1 minute. Independent claims are included for: (1) a method for making a catheter shaft; and (2) a tube.