NEEDLE-FREE SYRINGE PROVIDED WITH INJECTOR DEVICE-RECEIVER FOR MEDICATION Russian patent published in 2007 - IPC A61M5/30 

FIELD: medicine.

SUBSTANCE: needle-free syringe has case 2 where cylindrical container 3 is placed. Container is limited by movable top plug 4 and by moving lower plug 5 for placing liquid active source 6. Syringe also has receiver 7, 37 provided with at least two peripheral injection tubes 8, 38. Receiver rests against top surface of container and it has blind opening 10, 31, which has height to provide release inlet openings 9, 39 of peripheral injection tubes 8, 38 when lower plug 5 makes contact with base 7a of blind opening of receiver at activation of dynamic mounting 70, which moves system consisting of top plug-liquid-lower plug. Any inlet opening 9, 39 on top surface of receiver has part of surface, which passes in perpendicular to outlet opening 8. Mentioned part of surface is disposed onto injection tube and it is connected with radial gutter; gutter enters dead opening 10, 31. Surface of receiver has multi-profile connecting part 12, 34 passing along edge of opening or in direct vicinity to it in parallel to and close to dead opening 10, 31 to embrace inlet openings 9, 39 of injection tubes.

EFFECT: optimization of inlet openings of injection tubes; reduced pressure influencing onto medication receiver during injecting.

9 cl, 7 dwg