| 摘要 |
PROBLEM TO BE SOLVED: To reduce the resistance against puncture of a puncture member by mounting a plug provided with a slit and a groove formed on the outer peripheral, or a plug provided with a slit and a cavity formed in the interior, on a cylinder protrusively provided in a body. SOLUTION: A mixed injection member 1 arranged halfway in a medical device such as a transfusion set, a blood collection set, or the like, is formed by mounting a plug 2 having a slit 5 on the top face of a cylinder 4 provided in the top face of a tubular body 3. A groove 6 portion is formed in the middle portion of the outside peripheral wall of the plug 2. A cap 8, the center of the top of which is open, is put over the plug 2 mounted in the cylinder 4 through the protrusions in the outside periphery of the cylinder 4 and a groove on the inside periphery of the cap 8. When a puncture member is stuck into the slit 5 of the plug 2 from the top face, as the expanded portion of the plug 2 that is expanded at the same time as the puncture member is stuck is absorbed into the space of the groove 6, the puncture member can easily enter into the slit 5. Therefore, insertion resistance decreases and smoothens puncture. |
