Katheter und verfahren zu seiner herstellung

摘要

The present invention concerns a catheter with a hollow fiber membrane (10) bent essentially in U-shape or such a hollow fiber membrane (10) comprising two legs (11, 13) and a bent section (15). According to the invention the hollow fiber membrane (10) is heat-treated and/or treated with at least one solvent in its bent section (15). The catheter according to the invention has a small overall diameter, is simple to manufacture and easy to implant and explant. The bent section (15) does not kink so that the lumen remains open. The present invention also concerns a method for producing such a catheter or such a hollow fiber membrane.