The present disclosure relates to a medicament delivery training device (1) comprising a body (3), a needle cover (5), a rotator (23) that is torsionally biased, and a plunger rod (17). When the needle cover (5) is moved from an extended position to a retracted position relative to the body (3), this linear motion is transformed into a rotational motion of the rotator (23) which thereby releases the plunger rod (17). The plunger rod (17), which is biased, is thereby able to move axially. During axial motion of the plunger rod (17), the plunger rod (17) is arranged to engage with the rotator (23) to thereby displace the rotator axially, eventually resulting in a first angular distance rotation of the rotator (23). Upon release of the biased needle cover (5) from the extended position, the rotator (23) is allowed to rotate a second angular distance, thus obtaining a position which prevents the needle cover (5) to move from the extended position towards the retracted position.本揭示內容有關藥物輸送訓練裝置(1)，包含本體(3)、針蓋(5)、被扭轉地偏向的轉子(23)、及柱塞桿(17)。當該針蓋(5)係相對該本體(3)由延伸位置運動至縮回位置時，此線性動作被轉變成該轉子(23)之在旋轉方面的動作，其藉此釋放該柱塞桿(17)。被偏向之柱塞桿(17)係藉此能夠軸向地運動。於該柱塞桿(17)的軸向動作期間，該柱塞桿(17)被配置成與該轉子(23)嚙合，以藉此軸向地位移該轉子，最終導致該轉子(23)之第一角度距離旋轉。在由該延伸位置釋放該被偏向的針蓋(5)時，該轉子(23)被允許旋轉第二角度距離，如此獲得一防止該針蓋(5)由該延伸位置運動朝該縮回位置之位置。
