SAFE SYRINGE Russian patent published in 2008 - IPC A61M5/178 A61M5/50 

FIELD: medicine.

SUBSTANCE: invention refers to syringes. First version of design implies safe syringe including injector as tube with centre aperture, forming internal container, push rod inserted into injector container by flanged piston, bush with hollow sleeve being hold by injector aperture, needle assembly and sealing element. Sleeve is equipped by upper detachable junction and lower bush in its cavity so that needle base is supplied with connecting insert forming upper detachable junction. Lower push provides connection with flanged push rod. Needle assembly consists of needle base and needle body. Needle base is mounted outside of bush sleeve. Sealing element is made of elastic materials and preliminary formed by bush sleeve, and include external section provided outside of sleeve and forming air-tight connection with internal wall of injector container. Second version implies that needle base is supplied by connecting insert for upper detachable sleeve junction sealing element is furnished with lower bottom bush inside of sleeve for detachable junction with flanged push rod. In third version needle base is mounted outside of bush sleeve, and sealing element inside of sleeve is provided with upper and lower bushes, and needle base is furnished with connecting insert forming upper detachable junction, and lower bush provides connection with flange of pusher rod. In fourth version needle base is mounted outside of bush sleeve, but thus sealing element is equipped with internal threaded section, and forms lower bush inside of sleeve, and needle base is supplied with external threaded section to form connection with external threaded section, and lower bush provides connection with flange of push rod. In fifth version needle base also is mounted outside of bush sleeve, and sealing element is supplied with lower bush inside of sleeve to form connection with flange of push rod.

EFFECT: assemblage simplification, productivity increase, and profitability increase.

15 cl, 18 ex