HYDRAULIC NEEDLE-LESS INJECTOR Russian patent published in 2019 - IPC A61M31/00 

FIELD: medicine.

SUBSTANCE: invention refers to medical equipment used in veterinary science, particularly to hydraulic needle-free injectors. Hydraulic needle-less injector comprises housing, spring-loaded piston-rod, drug delivery system, hydraulic line. Sub-piston cavity formed by the housing and the piston is connected by means of a high-pressure hose with a hydraulic cavity of the replaceable pneumatic accumulator and by a branch pipe for disinfectant supply via a two-position hydraulic distributor. As a working fluid for raising a hydraulic needle-free injector, a disinfectant solution is used, which is directed to the injection point with a special branch pipe.

EFFECT: proposed technical solution makes it possible to minimize physical effort to raising the hydraulic needle-free injector in working condition and to adjust depth of injection without its dismantling-assembly.

1 cl, 1 dwg