JP2007175447A5 - - Google Patents

Claims (6)

A first fluid introduced into a desired organ of the subject;
A second liquid that has a lower specific gravity than the first liquid and does not mix with the first liquid and is introduced into the organ;
Having an intermediate specific gravity between the first liquid and the second liquid, introduced into the organ, and floated on the boundary surface between the first liquid and the second liquid in the organ; A capsule medical device that acquires in-subject information and wirelessly outputs the in-subject information to the outside of the subject;
A receiving device that is disposed outside the subject and receives the in-subject information wirelessly transmitted from the capsule medical device in the subject;
Capsule displacement driving means for changing a floating position and / or a floating posture on the boundary surface of the capsule medical device;
An in-subject observation system comprising: The capsule medical device contains a permanent magnet,
The capsule displacement driving means drives and changes the floating position and / or the floating posture of the capsule medical device by applying an external magnetic field from outside the subject to the permanent magnet built in the capsule medical device. The in-subject observation system according to claim 1, wherein the observation system is a magnetic field applying unit.   2. The capsule displacement driving means is a self-oscillating mechanism that is added to the capsule medical device and changes a floating position and / or a floating posture of the capsule medical device by swing driving. The in-subject observation system described in 1.   2. The capsule displacement driving means is a self-propelling mechanism that is added to the capsule medical device and changes a floating position and / or a floating posture of the capsule medical device by propulsion driving. In-subject observation system. The in-vivo observation system according to any one of claims 1 to 4 , wherein the first liquid and / or the second liquid has a variable amount of introduction into an organ. The said 1st liquid, the said 2nd liquid, and the said capsule type medical device are further equipped with the posture change apparatus which changes the posture of the said test subject introduced in the said desired organ. 5. The intra-subject observation system according to any one of 5 above.