NEEDLE-FREE INJECTION TECHNIQUE Russian patent published in 2013 - IPC A61M5/142 

FIELD: medicine.

SUBSTANCE: invention refers to medicine, namely to medical equipment, and may be used in need of mass injections. That is ensured by needle-free injections by penetration of a high-velocity jet of the preparation into a patient's body. During the injection process directly, as well as during a period of time following the injection, between an injector nozzle forming a jet of the preparation, and the patient's body, a high-speed gas flow is supplied in a direction perpendicular to an axis of the jet of the preparation.

EFFECT: method provides the prevention of patient's cross colonisation during mass needle-free injections ensured by gas flow blowing of tissue liquid microdrops towards the nozzle.