| 摘要 |
PURPOSE: A Ringer's needle is provided, to prevent air from being flown into the blood vessel by closing the path of an introduction needle when the Ringer's solution is exhausted. CONSTITUTION: The Ringer's needle comprises an introduction needle forming a Ringer's solution efflux path(14) and an air injection path(16), and a dropping bottle, wherein the Ringer's solution efflux path(14) is formed in the shape of U-trap and contains a valve room(11) where a floating valve(13) is received, in the entrance part, and the valve room(11) comprises a separation preventer(12) for preventing the floating valve(13) from being separated, in the upper part. Preferably the U-trap is dually structured.
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