| 摘要 |
PROBLEM TO BE SOLVED: To provide a syringe capable of easily detaching and discarding an injection needle after use. SOLUTION: The syringe 1 is provided with an outer cylinder 5, with which an injection needle 3 is attached on the top end, and a plunger 7 to be inserted into the outer cylinder 5. The injection needle 3 is fixed on a hub 9, and a rear end 3a thereof goes through the hub 9 and is extended to be protruded inside the outer cylinder 5. When a top end 7a of the plunger 7 is abutted to the rear end 3a of the injection needle 3, the plunger 7 is temporarily braked there and injection is completed. When the plunger 7 is further pushed after injection, the rear end 3a of the injection needle 3 is pushed by the plunger 7, the hub 9 is detached from a fitting port 11 and the injection needle 3 can be easily detached. |
