| 摘要 |
A urological catheter has plastic shaft (1) with a main lumen (10) and two minor lumens (11 and 12) extending within ribs (13 and 14), which project inwardly into the main lumen. The minor lumens (11 and 12) are occluded at the machine end of the shaft by heat forming them outwardly into the wall of the shaft using a heated die (50) with a central core (51). A coupling (3) has a central body (30) communicating with the main lumen (10), and two side arms (32 and 31) communicating with the minor lumens (11 and 12) via respective openings (25 and 26) cut through the wall of the shaft. The patient end tip (15) of the shaft is closed, the catheter opening through four eyes (16, 17, 19 and 20), two of which (16 and 17) cut through the minor lumens. One of the minor lumens (12) is closed on the machine side of an eye (17) and opens rearwardly into an inflatable cuff (21). The other lumen (11) opens at an eye (16) so that irrigation liquid can flow out through the eye. |
