Interlocking safety needle assembly preventing personnel from being infected with blood borne infectious diseases caused by needlestick

• Main Authors: LAI, SZU-YING, LIN, ZUUN, HSU, TING-WEN, PAN, TZU-LIN, YANG, SHIN-HAN, XU, YU-YUN, CHEN, JIAN-RU
• Format: Patent
• Language: Chinese; English
• Published: 16.04.2018
• Subjects: 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

An interlocking safety needle assembly comprises a syringe and a sleeve, wherein the syringe comprises a barrel, a needle shaft, and a needle core. The surface of the barrel comprises at least a sliding body, the needle shaft is coupled to one side of the barrel, and the needle core is sleeved into the barrel, at least one pushing element is arranged in a movable manner on one end of the needle core that is not sleeved into the barrel, the pushing element extends in the direction towards the needle core, the sleeve is sleeved over the barrel in a movable manner and fitted between the pushing element and the barrel, the sleeve is provided with at least one guiding groove on the sheathing surface, the guiding groove is fitted on the sliding body, and one side of the sleeve is provided with a elastic jacket. By pulling back the needle core to extract medicine or diluent, the pushing element moves to a pushing preparation position on one side of the sleeve. When injection is performed, the needle core moves in co