Injector capable of preventing from being repeatedly used

The utility model discloses an injector capable of preventing from being repeatedly used. The injector capable of preventing from being repeatedly used comprises a needle head, needle tubing and a needle core, wherein the needle head is matched with the needle tubing through a clamping hole, an annu...

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Bibliographische Detailangaben
Hauptverfasser:	LIU QIAN, MA XIYUN, WANG GEXIN, WANG DAQIANG, LUO XIAOMENG, BAO DONGWU, YIN JING
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY HUMAN NECESSITIES HYGIENE MEDICAL OR VETERINARY SCIENCE
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Beschreibung
Zusammenfassung:	The utility model discloses an injector capable of preventing from being repeatedly used. The injector capable of preventing from being repeatedly used comprises a needle head, needle tubing and a needle core, wherein the needle head is matched with the needle tubing through a clamping hole, an annular groove is formed in the clamping hole, the needle tubing is provided with a nipple which is matched with the needle head, an annular boss which has a backstopping effect and is matched with the annular groove is arranged on the nipple, a needle tubing annular groove is formed in the bottom of an inner cavity of the needle tubing, and a needle core annular boss which has the backstopping effect and is matched with the needle tubing annular groove is arranged at the end portion of the lower side of the needle core. Compared with the prior art, the injector capable of preventing from being repeatedly used has the advantages of being simple in structure, convenient to operate, and capable of being used only for one