Appliance of Tissue Organ Bath is also called intestinal canal and ease pain constant temperature device.The device is designed to provide accurate constant temperature circumstances in physiology pharmacology experiment. Double deck Maishi bath utentsil and ease pain groove are equipped with the device. In order to test intestinal canal’s muscle stretching force, you must put nutritive medium and oxygen in the bath utentsil at the same time, moreover, biological signal gathering system must be used comprehensively. When do a little rat’s medicine experiment in constant temperature ease pain groove, we replace accurate constant temperature device with classic spirit lamp to heat up. However, we can do heart part from body experiment in constant temperature circumstances with particular matching appliance, so a tractor serves several purpose that is turned into reality.