Examination apparatus

1. An examination apparatus comprising:

a stage on which a specimen is to be disposed;

an optical system configured to form an enlarged or reduced image of the specimen;

a cover configured to separate an inside from an outside and to cover the stage and the optical system in the inside;

an opening and closing member provided as part of the cover;

a detection unit configured to detect whether the opening and closing member is in a closed state or an open state;

a stage driving unit configured to move the stage such that only when the detection unit detects the opening and closing member is open, the stage is moved by the stage driving unit from the inside to the outside of the cover through an opening covered by the opening and closing member;

an anesthetic apparatus configured to anesthetize the specimen;

a tube configured to supply anesthetic from the anesthetic apparatus to the specimen;

an attachment member configured to attach the tube to the stage; and

a holding member configured to hold the tube interposed between the attachment member and the anesthetic apparatus,

wherein the tube is easily held by the holding member even when the eject movement and the return movement of the stage is carried out, and

wherein the holding member is a rotary wind-up mechanism.