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1. 发明专利

JPH10201848A FORMATION OF FRONT END OF VENOUS CATHETER 失效
公开(公告)号：JPH10201848A
公开(公告)日：1998-08-04
申请号：JP36888097
申请日：1997-12-27
申请人： JOHNSON & JOHNSON MEDICAL
发明人： PATEL JAY M , BIALECKI DENNIS , CHANG JOSEPH J
IPC分类号： A61M25/00 , A61M25/16 , B29C57/00
摘要： PROBLEM TO BE SOLVED: To suppress the wear of a casting mold and arbor and to necessitate the mere exchange of only a worn tool in spite of wearing by mounting a tubular catheter at this arbor, mounting the arbor at the heated casting mold, molding the catheter, inserting the finned catheter into a jig and cutting fins. SOLUTION: The tubular catheter 1 consisting of polytetrafluoroethylene, etc., is mounted at the coaxial arbor 2. The arbor 2 is inserted to the inner side of the bore 3 of a catheter cannula and is put into the state of extending beyond the catheter end 5. The casting mold 6 having a convergent inner flank 7 is heated to a suitable temp. and the catheter 1 and the arbor 2 are inserted into the casting mold. The catheter 1 is then softened and molded. As a result, the front end 8 of the fin is formed at the catheter 1. The casting mold 6 and the catheter 1 are cooled and the finned catheter 1 is removed. The fin 8 is cut off by a definning jig, by which the desired venous catheter is obtd. As a result, the casting mold and arbor are not used as cutting tools and, therefore, the wear thereof is suppressed.

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