Patent ID: 8480969

Claim:
A medical device that measures a condition of a living body, comprising: a casing including a latch part; and a cover member that includes a hook part to engage with the latch part and covers a portion on one-direction side of the casing, the hook part having a hook-like portion; one of the casing and the cover member including a protrusion, and the other including a fitted portion for the protrusion to fit in, wherein the casing includes a recess shaped to fit with an outer shape of the cover member at a portion to be covered by the cover member, the latch part is provided in a position of a side wall of the recess corresponding to the hook part, the fitted portion is provided in a position of the side wall corresponding to the protrusion, the hook part is shaped such that a tip of the hook-like portion faces an opposite side from a casing side when the cover member is arranged on the casing, the recess is configured to allow the hook part to move to a bottom surface side of the recess when the hook part of the cover member is pushed, the cover member is in a form of a plate and includes two opposing side surfaces, each of the two side surfaces having the protrusion, the hook part is arranged on a virtual axis being parallel to the two side surfaces and passing between the protrusions, and the side wall of the recess is shaped such that a portion located on the virtual axis when the cover member is attached and opposing a position corresponding to the hook part is lower than another portion.