FIELD: medication.
SUBSTANCE: invention relates to medical equipment, namely to dose-setting mechanisms for medication delivery. Dose-setting mechanism contains: external case, internal case and sleeve with scale. Internal case has external groove and is made with possibility to direct drive for distribution of dose, set with dose-setting mechanism. Sleeve with scale is located between external case and internal case and is in rotary engagement with said external groove of internal case. Sleeve with case is made with possibility of rotation relative to both external case and internal case during dose setting and is made with possibility of travel both from external case and internal case. Internal case contains internal spiral slot.
EFFECT: application of invention makes it possible to simplify stage of discharge of dose-setting mechanism; number of composite parts of device for medication delivery is reduced, which makes device less complex and more compact, cost and complexity of assembling and production is reduced.
20 cl, 19 dwg
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