METHOD FOR INJECTION MOLDING OF A URINARY CATHETER, AND, INJECTION MOLDING APPLIANCE FOR INJECTION MOLDING OF A URINARY CATHETER

摘要

it is a method of injection molding a urinary catheter into a mold cavity using a flow structure with a primary melt channel in simultaneous communication with a first secondary melt channel and a second secondary molten material, where the first secondary molten material channel is connected to a first injection point of the mold cavity for injection of the molten material into the mold cavity from the first injection point, and where the second material channel secondary melt is connected to a second injection point of the mold cavity for injection of molten material into the mold cavity from the second injection point. to enable improved control and thus enable the molding of a longer and thinner catheter, and particularly a catheter with a long internal conduit, the method comprises injecting molten material simultaneously from the first and second secondary molten material channels in the mold cavity.