The medical machine that a kind of lid constructs and uses lid construction is provided, the miniaturization for hindering machine can be inhibited on one side, simply carry out the installation and disassembly of lid on one side.A kind of medical machine 1 includes: framework 2； Cover the cover component 11 of the part of its one-way lateral； The sheet members 18 being sandwiched between the framework 2 and the cover component 11. Cover component 11 is to include in its outer rim: the hook portion 12 with hook-shaped part 13； Protrusion 14. Framework 2 includes: hook portion 12 can block and the latching portion 5 that is formed； The embedded division 6 of embeddable protrusion 14. Sheet members 18 include the positioning region 19 that the sheet members 18 are positioned to cover component 11. Cover component 11 has translucency preferable. Moreover, framework 2 is preferable in the recess portion 3 that the part covered by cover component 11 includes the shape of cooperation cover component 11 and formed.提供一種蓋子構造及使用該蓋子構造的醫療機器，可一邊抑制阻礙機器的小型化，一邊簡單地進行蓋子的安裝及拆卸。一種醫療機器1，包含：框體2；覆蓋其單向側的部分之蓋子構件11；被夾入該框體2與該蓋子構件11之間的薄片構件18。蓋子構件11是在其外緣包含：具有鉤狀的部分13之鉤部12；突起部14。框體2包含：鉤部12可卡住而形成的閂鎖部5；可嵌入突起部14之嵌入部6。薄片構件18包含對蓋子構件11定位該薄片構件18之定位部19。蓋子構件11具有透光性較佳。而且，框體2在藉由蓋子構件11覆蓋的部分包含配合蓋子構件11的外形而形成的凹部3較佳。
