公开(公告)号：US3720210A

公开(公告)日：1973-03-13

申请号：US3720210D

申请日：1971-03-03

Applicant: BAXTER LABORATORIES INC

Inventor： DIETTRICH L

IPC: A61B17/34 ,  A61M5/34 ,  A61M25/00 ,  A61M5/00

CPC classification number: A61M5/343 ,  A61B17/34 ,  A61M25/0014

Abstract: AN INDWELLING CATHETER DEVICE IS PROVIDED FOR USE IN AN INTRAVENOUS CATHETER PLACEMENT UNIT OR INFUSION SET TO PERMIT THE INTRODUCTION OF WITHDRAWAL OF LIQUIDS FROM A HUMAN BODY. THE CATHETER DEVICE INCLUDES AN ELONGATED FLEXIBLE TUBE SECTION OF A LOW FRICTION MATERIAL PREFERABLY FLUORINATED ETHYLENE PROPYLENE POLYMERS OR TETRAFLUOROETHYLENE POLYMERS HAVING A TUBULAR PREFERABLY THERMOPLASTIC COLLAR MEMBER MOUNTED THEREON WITH AN INTERFERENCE FIT ADJACENT AN ENLARGE FLANGE OF THE ELONGATED FLEXIBLE TUBE SECTION. A HUB ELEMENT OF A DIFFERENT HIGHER FRICTION MATERIAL, SUCH AS POLYETHYLENE IS INSERT MOLDED OVER AND AROUND THE TUBULAR COLLAR MEMBER AND ENLARGED INTERGAL FLANGE OF THE ELONGATED FLEXIBLE TUBE SECTION TO FORM A UNITARY CATHETER DEVICE. THE HEAT OF THE MOLDING OPERATION CAUSES A CHEMICAL BONDING OR FUSING OF THE MATERIAL OF THE HUB TO THE MATERIAL OF THE COLLAR SO AS TO PROVIDE A FLUID TIGHT BETWEEN THE HUB AND CATHETER TUBE.

D R A W I N G