The invention relates to a drug delivery device (1) comprising: - a case (2) adapted to hold a medicament container (3), - a plunger (10) disposed within the case (2) and slidable from a proximal position (P1) into a distal position (P2) for delivering a medicament (M) from the medicament container (3), - at least one feedback mechanism (13) that is in operative connection with the plunger (10), the feedback mechanism (13) comprising a collar (14), a control spring (8) biasing the collar (14) in a distal direction (D), a needle shroud (7), operatively axially abutting the collar (14) in a first coupled state and prevented from axially decoupling the collar (14) by the plunger (10) in its proximal position (P1), wherein the plunger (10), when approaching the distal position (P2) during movement from the proximal position (P1) towards the distal position (P2), is adapted to allow axial decoupling of the needle shroud (7) from the collar (14), thus allowing for a limited axial movement of the collar (14) relative to the needle shroud (7) until the collar (14) axially abuts the needle shroud (7) in a second coupled state.本發明涉及一種藥物輸送裝置(1)，其包括：- 外殼(2)，其適於容納藥劑容器(3)，- 柱塞(10)，其佈置在該外殼(2)內並且可從近側位置(P1)滑動到遠側位置(P2)中，用於從該藥劑容器(3)輸送藥劑，- 至少一個反饋機構(13)，與該柱塞(10)可操作地連接，該反饋機構(13)包括套管(14)、使該套管(14)向遠側方向(D)偏的控制彈簧(8)、針護罩(7)，該針護罩(7)在第一聯接狀態下可操作地軸向抵靠該套管(14)並且由處於其近側位置(P1)的該柱塞(10)防止與該套管(14)軸向斷開，其中，該柱塞(10)在從該近側位置(P1)朝該遠側位置(P2)移動期間當接近該遠側位置(P2)時，適於允許該針護罩(7)與該套管(14)斷開，因此允許該套管(14)相對於該針護罩(7)的有限的軸向移動，直至該套管(14)在第二聯接狀態下軸向抵靠該針護罩(7)為止。
