| 摘要 |
PROBLEM TO BE SOLVED: To effectively inject medicine into a blood vessel wall by providing a device which is provided with a comparatively many injection needles and a mechanism, which is used for perforating the blood vessel wall, separated from another mechanism used for injection. SOLUTION: A device 10 for injecting liquid medicine into a blood vessel wall has a multitublar catheter 20 and a grommet 22 and the grommet 22 is made to advance along a longitudinal-direction shaft line 24 via a push/pull wire 26. A plurality of hollow flexible tubes 30 (30a, 30b) are mounted between the grommet 22 and the multitublar catheter 20, a tube near end 34 and a distant end 32 are joined with the multitublar catheter 20 and the grommet 22, respectively, and different kinds of medicine is made to flow through respective tubes via the multitublar catheter 20. Injectors 40a-40c are mounted on the central part 36 of respective tubes 30 and respective injectors 40 has tips formed around the ends of projections. |
