A medical apparatus of the present invention includes an image pickup apparatus provided for a medical instrument to pick up an image of a region to be examined in a body, a fixing section that keeps the image pickup apparatus indwelling in and fixed to a body wall in the body, a transmission section that extends from the image pickup apparatus and transmits a power or an electric signal to/from a device outside the body, and a shake absorption section that absorbs and suppresses shaking of the transmission section by means of a movable member connected to the transmission section and freely movable with respect to the image pickup apparatus and a holding member connected to the transmission section for holding the movable member in a freely movable manner, wherein when a treatment is applied to a subject in the body while observing the subject, the apparatus can suppress shaking of the image pickup apparatus left indwelling in the body, acquire an excellent observed image and prevent damage to a cable extending from the image pickup apparatus.
