发明名称 PUSH-AND-SEPARATE SAFETY SYRINGE
摘要 A safety syringe includes a barrel, a plunger, a socket, a connector and a needle. The plunger is inserted in the barrel. The connector is inserted in the socket. The needle is connected to the connector. The socket includes a conical internal face in contact with a conical external face of the connector, an annular internal rib inserted in an annular external groove of the connector, and an annular internal groove for receiving an anchoring ring of the connector, thus retaining the connector in the socket. The plunger is movable backward to draw medicine into the barrel via the needle. The plunger is movable forward to extrude the medicine from the barrel via the needle. As the plunger is in contact with the anchoring ring, a larger force can be used to push the connector and the needle further forward from the socket to detach the needle from the socket.
申请公布号 US2017028138(A1) 申请公布日期 2017.02.02
申请号 US201514811810 申请日期 2015.07.28
申请人 Wei Ching Hsiang 发明人 Wei Ching Hsiang
分类号 A61M5/32;A61M5/34 主分类号 A61M5/32
代理机构 代理人
主权项 1. A push-and-separate safety syringe comprising: a barrel 10; a socket 11 formed in the barrel, comprising a conical internal face 12 formed next to a front end of the barrel 10 and comprising a rear end 121 and a front end 122 made with a diameter larger than that of the rear end 121;an annular internal rib 13 formed at a rear end 121 of the conical internal face 12; andan annular internal groove 14 made next to the annular internal rib 13; a plunger 20 movably inserted in the barrel 10; a connector comprising: a joint 31 comprising a conical external face 32 in compliant contact with the conical internal face 12;an annular cavity 33 made in the joint 31;an anchoring ring 36 formed at a rear end of the joint 31 and inserted in the annular internal groove 14;an axial channel 37 made throughout the joint 31 and the anchoring ring 36;a tubular inset 38 formed between the annular cavity 33 and the axial channel 37; andan annular external groove 34 made between the joint 31 and the anchoring ring 36 to receive the annular internal rib 13; and a needle unit 40 comprising: a needle seat 41 inserted in the annular cavity 33 while the tubular insert 38 is fitted in the needle seat 41; anda needle 42 connected to a front end of the needle seat 41.
地址 Taichung City TW