FIELD: medicine.
SUBSTANCE: injection device includes a fixed assembly, containing the first toothed element, mobile assembly containing a tank with liquid drug, means to drive out the liquid drug from the tank for its introduction into the patient, and the second toothed element is installed with a opportunity of gearing with the first toothed element, a drive element with the ability to drive one of the first and second toothed elements, and engaging tools with the ability to maintain gearing between the first and second toothed elements under normal conditions, and with a possibility of disengagement of the first and second gear elements in case of a shock impact in a given direction, while the mobile assembly is made with the ability to move relative to the fixed assembly in a predetermined direction by engaging between the first and second toothed elements.
EFFECT: increased strength, reliability and durability of the injection device.
14 cl, 1 dwg
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RU2127131C1 |
