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Hemolysis test of a centrifugal pump in a pulsatile mode: the effect of pulse rate and RPM variance.
- Eiki Tayama, Yayoi Niimi, +5 authors Yukihiko Nose
- Artificial organs
- 1997
Centrifugal pumps are generally employed as nonpulsatile blood flow pumps; however, these pumps can produce pulsatile flow by periodically alternating the impeller rotation speed. This study… (More)
- Aron Andrade, Denys E. Nicolosi, +7 authors Yukihiko Nose
- Artificial organs
- 1999
Leading international institutions are designing and developing various types of ventricular assist devices (VAD) and total artificial hearts (TAH). Some of the commercially available pulsatile VADs… (More)
- Eiki Tayama, Don Olsen, +5 authors Michael E Debakey
- Artificial organs
- 1999
In 1993, the development began of a small axial flow blood pump, the DeBakey ventricular assist device (VAD). The material was recently converted to a titanium alloy, and a waterproof pump package… (More)
- Yayoi Niimi, Shintarou Yamane, Kyoko E Yamaji, Eiki Tayama, Akio Sueoka, Yukihiko Nose
- ASAIO journal
- 1997
Platelet adhesion on an oxygenator membrane is associated with thrombocytopenia or thrombus formation during extracorporeal circulation. The authors evaluated protein adsorption and platelet adhesion… (More)
- Yukihiko Nose, Satoshi Ohtsubo, Eiki Tayama
- Artificial organs
- 1997
Current left ventricular assist devices (LVADs) have demonstrated admirable results. However, approximately one-fourth of the patients who require LVADs suffer from right heart failure and require… (More)
- Takakiyo Nakazawa, Kenzo Makinouchi, Yoshiyuki Takami, Julia A Glueck, Eiki Tayama, Yukihiko Nose
- Artificial organs
- 1996
To clarify the correlation of vibration and thrombus formation inside a rotary blood pump, 40 preliminary vibration studies were performed on pivot bearing centrifugal pumps. No such studies were… (More)
- Theresa W. Fossum, Deborah Morley, +13 authors Michael E Debakey
- Artificial organs
- 1999
The DeBakey ventricular assist device (VAD) is a miniaturized, electromagnetically driven axial flow pump capable of generating in excess of 10 L/min output. The VAD was evaluated in 19 calves during… (More)
- Eiki Tayama, Satoshi Ohtsubo, +5 authors Yukihiko Nose
- Artificial organs
- 1997
One of the major considerations in the development of a circulatory assist device is its antithrombogenecity. Although the precise evaluation should be accomplished by in vivo tests, these tests are… (More)
- Yoshiyuki Takami, Takakiyo Nakazawa, +4 authors Yukihiko Nose
- Artificial organs
- 1997
The present study investigates how the surface roughness of an impeller affects hemolysis in the pivot bearing supported Gyro C1E3 pump. This study focuses on particular areas of the impeller surface… (More)
- Eiki Tayama, Satoshi Ohtsubo, +5 authors Yukihiko Nose
- Artificial organs
- 1997
The improvement of antithrombogenicity is one of the major objectives for the development of blood pumps. Previously we reported that an in vitro thrombogenic test was useful as a pilot study,… (More)