A kind of medical treatment computer, it includes: a basic computer, a knob, a drive disk, an accommodating shell, an elastic component and a battery modules. The one side of knob has a ring wall, and ring wall is at least one opening. Drive disk includes: a unlock protruding shaft, at least one hold to convex block and a positioning protruding shaft. It unlocks protruding shaft and positions the side of protruding shaft setting what drive disk； At least one holds the other side to convex block setting what drive disk. Accommodating shell has an accommodation groove, and its top surface has one first guide groove. Distinguish fixed what drive disk and accommodating shell in elastic component both ends. Battery modules have a battery case, and top surface has a limiting slot. Wherein, the side of knob setting what drive disk, and holding for drive disk is arranged in the opening of what knob to convex block； Drive disk is arranged what and accommodates on the top surface of shell, and positions the limiting slot that protruding shaft passes through the first guide groove and is embedded what battery case.一種醫療電腦，其包含：一電腦主體、一旋鈕、一驅動盤、一容置殼體、一彈性件及一電池模組。旋鈕的一側面具有一環壁，且環壁具有至少一開口。驅動盤包含：一解鎖凸軸、至少一承抵凸塊及一定位凸軸。解鎖凸軸及定位凸軸設置於驅動盤的一側；至少一承抵凸塊設置於驅動盤的另一側。容置殼體具有一容置槽，且其頂面具有一第一導槽。彈性件兩端分別固設於驅動盤及容置殼體。電池模組具有一電池殼體，其頂面具有一限位槽。其中，旋鈕設置於驅動盤的一側，且驅動盤的承抵凸塊設置於旋鈕的開口內；驅動盤設置於容置殼體的頂面上，且定位凸軸穿過第一導槽而嵌設於電池殼體的限位槽。
