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syringe device for automatic clamp the needle and means for moving the needle into the syringe at the end of injection.
syringe device for automatic clamp the needle and means for moving the needle into the syringe at the end of injection.
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机译:用于自动夹紧针头的注射器装置和在注射结束时将针头移入注射器的装置。
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摘要
A syringe fitted with a clamping device for the needle and with means to enable the needle to be automatically retractable into the syringe body at the end of an injection comprises: outer and inner cylinders; openings at the ends of the outer cylinder; a third opening at an end of said inner cylinder; closing means for said third opening; a needle with a head; sealing means in said closing means; a first spring to push said needle against said closing means; a clamping device loaded by a second spring to maintain outward said syringe and to release said needle; a diaphragm in said closing means which bends before its breaking; a sharp element to break said diaphragm; closing means to prevent said needle from being reached and stopping means to prevent said second cylinder from being moved outward said syringe after its use.
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