| 摘要 |
PROBLEM TO BE SOLVED: To maintain the low-temperature state for a long period by providing a diluent feed unit cooling a diluent and quantitatively injecting it into a blood vessel, a blood concentration unit quantitatively guiding the diluted blood from the blood vessel and concentrating it, and a blood feed unit heating the concentrated blood and quantitatively injecting it into the blood vessel. SOLUTION: When general profound hypothermia is applied under a cardiac arrest at the time of craniotomy or the like, a diluent is fed from a container 8 through a liquid feed pump 1 and a flow meter 2 and cooled by a cooling heat exchanger 3, then it is injected into a body 17 via a catheter 10. The blood diluted via a vein is guided via a catheter 11, and it is guided to the blood side inlet of a blood concentrating element 13 through a liquid feed pump 5. The concentrating element 13 is preferably a filtration device, and the filtration device is provided with a filtration pump 7 on the filtrate side. The concentrated blood in the low-temperature state is injected into the vein through a heating heat exchanger 6 via a catheter 15, and a foam drip chamber 16 is provided in the middle.
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