FIELD: medicine and veterinary science, in particular, injection facilities.
SUBSTANCE: needle-free syringe has trigger mechanism, gas generator adjoining to gas expansion chamber, primary nutrient particles retaining system and pipe for ejection of said particles. Said particles are placed outside ejection pipe channel. Gases released by gas generator initially cause feeding of primary nutrient particles into ejection pipe by moving piston with following urging of said particles to move in accelerated mode by means of knock wave in ejection pipe.
EFFECT: compact construction and convenient usage.
15 cl, 7 dwg
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