A portable medical sharps storage box includes a box body, a box cover and a twist lock structure. The box body defines an unlocking position and a locking position with a locking part； the box cover is provided with a stopping part； the twist lock structure is arranged on the box cover and has a lock tongue and first and second stoppers that can both rotate with the twist lock structure ； After the first blocking body and the lock tongue are turned in one direction, they will be blocked by the blocking part and the locked part will be locked in the locked position respectively； after the second blocking body and the lock tongue are turned in the other direction, they will be respectively Blocked by the blocking part and moved to the unlocked position. Thereby, the twist lock structure can be restricted from rotating only within a fixed angle, thereby achieving the effect of preventing the box cover from being opened by mistake.一種攜帶型醫療銳器收納盒，包括：盒體、盒蓋以及旋鎖結構。盒體定義有解鎖位置和設有鎖止部的閉鎖位置；盒蓋設有擋止部；旋鎖結構設於盒蓋且具有皆能跟隨旋鎖結構轉動的鎖舌和第一、二擋體；第一擋體和鎖舌朝一方向跟轉後，將分別受到擋止部擋止和受到鎖止部鎖止在閉鎖位置；第二擋體和鎖舌朝另一方向跟轉後，將分別受到擋止部擋止和移動至解鎖位置。藉此，能限制旋鎖結構只能在固定角度內轉動，進而達成防止盒蓋誤開啟的效果。
