A rigid sensor stopper for drug delivery device

The present disclosure relates to a rigid sensor stopper suitable for use in a drug delivery device. In one embodiment, a rigid sensor stopper may include a transducer, a power source, a rigid mold orhousing, and at least one resilient seal. The molded part may be formed by overmolding or insert molding, and the housing may be formed by injection molding, machining, or forging the housing. The atleast one resilient seal includes at least two O-rings. 本公开涉及一种适用于药物递送装置的刚性传感器止动器。在一个实施方式中，刚性传感器止动器可以包括换能器、电源、刚性模制件或壳体、和至少一个弹性密封件。模制件可以由包覆模制或嵌入模制形成，并且壳体可以由注塑、机械加工或锻造壳体形成。所述至少一个弹性密封件包括至少两个O形环。