| Project/Area Number |
12671318
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Thoracic surgery
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| Research Institution | FUKUSHIMA MEDICAL UNIVERSITY SCHOOL OF MEDICINE |
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Principal Investigator |
IGARI Tsuguo FUKUSHIMA MEDICAL UNIVERSITY, SCHOOL OF MEDICINE, ASSOCIATE PROFESSOR, 医学部, 助教授 (50045796)
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| Co-Investigator(Kenkyū-buntansha) |
SATOKAWA Hirono FUKUSHIMA MEDICAL UNIVERSITY, SCHOOL OF MEDICINE LECTURER, 医学部, 講師 (70226025)
IWAYA Fumio FUKUSHIMA MEDICAL UNIVERSITY, SCHOOL OF MEDICINE, ASSOCIATE PROFESSOR, 医学部, 助教授 (90045758)
YOKOYAMA Hitoshi FUKUSHIMA MEDICAL UNIVERSITY, SCHOOL OF MEDICINE, PROFESSOR, 医学部, 教授 (80282127)
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| Project Period (FY) |
2000 – 2001
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| Project Status |
Completed (Fiscal Year 2001)
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| Budget Amount *help |
¥1,500,000 (Direct Cost: ¥1,500,000)
Fiscal Year 2001: ¥1,500,000 (Direct Cost: ¥1,500,000)
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| Keywords | CARDIOPULMONARY BYPASS / MINITURIZATION / PORTABLE / DISPOSABLE / ANESTHETIC MACHINE |
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| Research Abstract |
Miniaturization of the cardiopulmonary bypass system may provide several benefits, such as decreasing required manpower, cost, amount of the homologous blood required, and improvement of patient care. Our portable and disposable CPB system consists of a bypass circuit, a hard shell reservoir, a membrane oxygenator, and our designed pump. The reservoir had three chambers, one drainage and two suction chambers. These three chambers can control the negative pressure when connected with an ordinary vacuum system in the operating room. We have been working to create a newly designed disposable pump for this system. In this study, the probability of compressed air of the operating room for power source of the pump is examined. Our newly designed pump is operated with compressed air and has similar characteristics of an intraaortic balloon pumping. The air chamber of the shape of a pipe made from an acryl to which it was presupposed that the pulsatile is added to a centrifugal pump as previously reported (1995), and making the inside of chamber into a positive pressure as the polyurethane inner tube, was compressed. Since it develops as a perfusion pump, capacity is made to increase. It shall be used as a pump of the perfusion by equipping an outflow side with the one-way valve. The perfusate from the reservoir is led to the balloon-like inner tube made from a acryl by the innertube ofY characters at theshape ofa balloon in the hard shell reservoir, and is ejected bythe compressed air. By using compressed air, it is possible to perfuse up to 1 0 liters perminute, under bench testing. Preliminary tests found very satisfactory results concerning its operation. It is necessary to continue make it more performance for human use. It enables it to be used for the portable CPB system-mountable anesthetic machine.
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