Development of a pneumatic VAD drive unit aiming at compact wearable type
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- Homma Akihiko
- The Advanced Medical Engineering Center, Research Institute, National Cardio Vascular Center
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- Taenaka Yoshiyuki
- The Advanced Medical Engineering Center, Research Institute, National Cardio Vascular Center
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- Tatsumi Eisuke
- The Advanced Medical Engineering Center, Research Institute, National Cardio Vascular Center
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- Akagawa Eiki
- The Advanced Medical Engineering Center, Research Institute, National Cardio Vascular Center
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- Lee Hwansong
- The Advanced Medical Engineering Center, Research Institute, National Cardio Vascular Center
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- Nishinaka Tomohiro
- Tokyo Women's Medical University
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- Takewa Yoshiaki
- The Advanced Medical Engineering Center, Research Institute, National Cardio Vascular Center
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- Mizuno Toshihide
- The Advanced Medical Engineering Center, Research Institute, National Cardio Vascular Center
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- Tsukiya Tomonori
- The Advanced Medical Engineering Center, Research Institute, National Cardio Vascular Center
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- Kakuta Hideyuki
- The Advanced Medical Engineering Center, Research Institute, National Cardio Vascular Center
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- Katagiri Nobumasa
- The Advanced Medical Engineering Center, Research Institute, National Cardio Vascular Center
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- Shimosaki Isao
- MedWill Technology, Inc.
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- Hamada Shigeru
- IWAKI CO., LTD.
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- Mukaibayashi Hiroshi
- IWAKI CO., LTD.
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- Iwaoka Wataru
- IWAKI CO., LTD.
Bibliographic Information
- Other Title
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- 小型装着式を目指した空気圧駆動式補助人工心臓用駆動装置の開発
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Abstract
The purpose of this work is to develop an ultra-compact wearable pneumatic drive unit for ventricularassist device. The drive unit weighing 1.8kg consists of a brushless DC motor, a crankshaft, a cylinder-piston, noncircular gears and air pressure regulation valves. The reciprocating motion of the cylinder-piston generates the air pressure which drives the blood pump. The noncircular gears generate systolic ratio and the air pressure regulation valves regulate the maximum and minimum air pressure in the cylinder-piston. The drive unit was tested in an overflow type circulation mock test and a chronic animal test using a Toyobo blood pump of 70mL of stroke volume. The mock test showed that the maximum fl ow rate was more than7L/minat100bpm. The Holstein calf weighing 62kg with the drive unit on his back survived for 30 days in good general condition. The pumping rate and the systolic ratio were set at 80bpm and 53%. The average bypass flow and the average electric power consumption were maintained at 3.9+/-0.9L/min and 12+/-1W. These results indicate that developed drive unit has a potential to become a mechanical circulatory support system of the human heart.
Journal
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- Journal of Life Support Engineering
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Journal of Life Support Engineering 19 (Supplement), 23-23, 2007
The Society of Life Support Engineering
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Details 詳細情報について
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- CRID
- 1390001204366459648
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- NII Article ID
- 10029237289
- 130002031356
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- NII Book ID
- AA11947931
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- ISSN
- 18845827
- 13419455
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed