| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a needle assembly certainly preventing coring, preventing erroneous centesis with a simple structure, and allowing thinning of a port. <P>SOLUTION: This needle assembly 10 is performed with centesis into a septum 7 of the subcutaneous embedment type port 3, and includes: a body part 20 formed with a fluid flow passage 21 thereinside, and having a needle insertion port 26, an outflow port 23, and an inflow port 22 communicating with the fluid flow passage 21; a fluid-introducing tube 30 connected to the inflow port 22; a sheath tube 40 connected to the outflow port 23; a needle insertion path passing the needle insertion port 26, the fluid flow passage 21, the outflow port 23, and the sheath tube 40; a sealing valve 50 allowing needle insertion, and installed in a path to the fluid flow passage 21 from the needle insertion port 26 of the needle insertion path; and a solid inner needle 60 inserted into the needle insertion path through the sealing valve 50, and projected from the tip of the sheath tube 40. <P>COPYRIGHT: (C)2012,JPO&INPIT |
