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DOSING UNIT, AMBULATORY INFUSION DEVICE COMPRISING DOSING UNIT AND METHOD FOR OPERATING A DOSING UNIT
DOSING UNIT, AMBULATORY INFUSION DEVICE COMPRISING DOSING UNIT AND METHOD FOR OPERATING A DOSING UNIT
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机译:加药装置,包括加药装置的移动式输液装置和加药装置的操作方法
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摘要
A dosing unit for an ambulatory infusion device and a method of operation are disclosed. The dosing unit includes a stationary member, a movable member, and a plunger. The movable member and the stationary member, together, make a charging valve and a discharging valve. The plunger is located, at least in part, in a metering cavity of the movable member and the movable member is adapted to selectively couple and decouple a driving unit, such that, by operating the driving unit with the movable member being coupled with the driving unit, the movable member moves with the plunger to maintain a position of the plunger relative to the movable member along a displacement axis, and by operating the driving unit with the movable member being decoupled from the driving unit, the plunger is displaced while the position of the movable member is maintained.
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