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专利名称：AN IMPROVED AUTOMATIC SYRINGE发明人：GROSS, Joseph,LAVI, Gilad,TSALS, Izrail申请号：EP949211.1申请日：19981020公开号：EP1024845A1公开日：20000809
摘要：A syringe (10) comprises a barrel (11) containing an internal cylindrical body (12)containing a liquid (14) and communicating with a delivery needle (15). The needle (15) iscovered before use by a removable sheath (16), and after the sheath (16) is removed, theneedle (15) is concealed by a displaceable sleeve (20). In use the sleeve (20) is pressedagainst the skin by applying pressure while holding the barrel (11). The sleeve (20) isthereby retracted into the barrel (11) allowing the needle (15) to penetrate the skin. Themovement of the sleeve (20) also activates a gas generator (17) which expels the liquid(14) from the needle (15). When delivery is complete and the syringe (10) is taken fromthe skin, a coil sprint (22) moves the sleeve (20) back to the starting position againconcealing the needle (15). The coil spring (22) is torsionally biased before use and causesa rotational movement of the sleeve (20) relative to the barrel (11) when the sleeve (20)moves into and out of the barrel (11). This rotational movement engages a lockingmechanism which prevents further movement of the sleeve (20) and thereby permanentlyconceals the needle (15).
申请人：ELAN CORPORATION, Plc
地址：Lincoln House,Lincoln Place Dublin 2 IE
国籍：IE
代理机构：Ryan, Anne Mary
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