A medical apparatus having a camera that is introduced into a body, wherein the camera is a capsule-type image pickup unit comprising: an image pickup unit that is provided with a camera housing of a camera unit, and that is configured to pick up an image of a subject to be examined in the body; a securing portion configured to secure the camera to a wall in the body, the securing portion being removably disposed on an outer peripheral surface of the camera housing of the camera unit and opposite to a viewing direction of the image pickup unit and having a trough hole formed centraly thereof; a grasping unit that constitutes one side end portion of the camera in a longitudinal direction thereof and is removably arranged on a first side of the camera housing of the camera unit in a row arrangement; a plurality of assistance apparatuses (58, 59, 66, 66a-f, 67, 68) incorporated into the grasping unit and configured to assist image pickup by the image pickup unit a grasp portion disposed at a center of an end surface of the grasping unit and configured to be grasped when the camera is introduced into and retracted out of the body; a wire inserted through the hole and configured to lift the camera while bringing the securing portion into close contact with the wall in the body, to secure the camera to the wall, the wire having one end connected to the camera housing and configured to be extended from a center portion of the securing portion; and a balancing member that constitutes a second side end portion of the camera and is removably arranged on a second side of the camera housing of the camera unit opposite to the fist side of the camera housing in a row arrangement, the balancing member being configured to stabilize a balance for securing of the camera when the camera is secured to the wall, and designed to have the same weight as the grasping unit in which the plurality of assistance apparatuses (58, 59, 66, 66a-f, 67, 68) are incorporated. an image pickup unit that is provided with a camera housing of a camera unit, and that is configured to pick up an image of a subject to be examined in the body; a securing portion configured to secure the camera to a wall in the body, the securing portion being removably disposed on an outer peripheral surface of the camera housing of the camera unit and opposite to a viewing direction of the image pickup unit and having a trough hole formed centraly thereof; a grasping unit that constitutes one side end portion of the camera in a longitudinal direction thereof and is removably arranged on a first side of the camera housing of the camera unit in a row arrangement; a plurality of assistance apparatuses (58, 59, 66, 66a-f, 67, 68) incorporated into the grasping unit and configured to assist image pickup by the image pickup unit a grasp portion disposed at a center of an end surface of the grasping unit and configured to be grasped when the camera is introduced into and retracted out of the body; a wire inserted through the hole and configured to lift the camera while bringing the securing portion into close contact with the wall in the body, to secure the camera to the wall, the wire having one end connected to the camera housing and configured to be extended from a center portion of the securing portion; and a balancing member that constitutes a second side end portion of the camera and is removably arranged on a second side of the camera housing of the camera unit opposite to the fist side of the camera housing in a row arrangement, the balancing member being configured to stabilize a balance for securing of the camera when the camera is secured to the wall, and designed to have the same weight as the grasping unit in which the plurality of assistance apparatuses (58, 59, 66, 66a-f, 67, 68) are incorporated.