| 摘要 |
PROBLEM TO BE SOLVED: To provide an economical, disposal needleless syringe system which does not frighten nor overbear the patient and is easily handled by physicians. SOLUTION: The system consists of at least three separate units which are a disposal unit 1 equipped with a nozzle 2, a chemical 3 and a piston 4, a main body unit 40 equipped with a spring mechanism 14 (a spring or air spring mechanism) for high-pressure driving of the above-mentioned piston 4, and filler unit 60 equipped with a filler displacement member 63 which is mechanically displaced by high pressure. By filling a high repulsion into the spring mechanism 14 of the above-mentioned main body unit 40 at the filler displacement member 63 of the above-mentioned filler unit 60, a disposal needleless syringe system which has a small, light, inexpensive, simple structure and is economical and easy to handle at various situations such as at its preparation, carriage, injection, storage, etc., is provided. |
