Zobrazeno 1 - 10
of 73
pro vyhledávání: '"Yasuhisa Ohara"'
Autor:
Takatugu Shimono, Koji Kawahito, Kimitaka Tasai, Yasuhisa Ohara, George Damm, Robert Benkowski, Satoshi Ohtsubo, Julie Glueck, Kenzo Makinouchi, Yoshiyuki Takami, Yukihiko Nosé, George P. Noon, Tadashi Nakazawa
Publikováno v:
Artificial organs. 20(5)
Since 1991, in our laboratory, a pivot bearing-supported, sealless, centrifugal pump has been developed as an implantable ventricular assist device (VAD). For this application, the configuration of the total pump system should be relatively small. Th
Autor:
Kazumi Mizuguchi, Kozo Naito, Julie Glueck, Yasuhisa Ohara, Setsuo Takatani, Yukihiko Nosé, Kenzo Makinouchi, George P. Noon, George Damm, Yukihiko Orime, Ichiro Sakuma, Kimitaka Tasai
Publikováno v:
Artificial Organs. 17:599-604
A seal-less centrifugal pump aiming for long-term circulatory support has been developed. In this model, shaft seals that cause thrombus formation and blood leakage were eliminated. A brushless direct current motor was incorporated as a driving unit,
Autor:
Yasuhisa Ohara, Yukihiko Orime, Motomi Shiono, Tatsuya Sasaki, Yukihiko Nosé, Setsuo Takatani, George P. Noon, Naoki Minato, Michael E. DeBakey, Charles A. Swenson
Publikováno v:
Artificial Organs. 16:607-613
A versatile, one-piece total artificial heart (TAH) system that can be driven by either an electromechanical acutator (EM-TAH) or a pneumatic source (P-TAH) has been developed. The common units for both TAHs are the conically shaped left and right pu
Publikováno v:
Japanese Journal of Cardiovascular Surgery. 35:242-245
Autor:
Masato Usui, Atsuo Maekawa, Yuichi Ueda, Shinichi Mizutani, Yuji Narita, Y. Takagi, Yasuhisa Ohara, Akihiko Usui, Hiroshi Masumoto, Haruki Takemura, Takashi Yano, Takashi Watanabe
Publikováno v:
Artificial Organs. 26:833-839
There is not yet agreement about the optimal size of the prostheses in aortic and mitral valve replacement with Manouguian's technique. In this technique, the aortic prosthetic valve can be pushed upon the mitral prosthesis which may cause dysfunctio
Autor:
Kazuki Tajima, Naomichi Nishikimi, Yasuhisa Ohara, Takashi Watanabe, Y. Takagi, Akihiko Usui, Osamu Kawaguchi, Tsuneo Ishiguchi, Yuichi Ueda
Publikováno v:
Journal of Artificial Organs. 4:283-287
The clinical results of endovascular stent grafting (EVG) on open surgery for distal aortic arch aneurysm were compared with those of conventional graft replacement to evaluate the lesser degree of invasiveness of EVG. Thirteen men with an average ag
Publikováno v:
Journal of Artificial Organs. 4:156-160
The Gyro Pump C1E3 incorporates a doublepivot bearing system as a completely sealless centrifugal pump. The male pivot is made of alumina ceramic, and the female is made of polyethylene. Therefore, the durability of this pump depends upon morphologic
Publikováno v:
The Japanese Journal of Thoracic and Cardiovascular Surgery. 48:769-774
We evaluate the clinical efficacy of sarpogrelate, an antiplatelet drug that improves red blood cell deformability, to reduce the intravascular hemolysis problems suffered frequently by patients implanted with heart valve prostheses.Subjects were 34
Autor:
Yasuhisa Ohara, Katsuhito Teranishi, Takashi Watanabe, Yoshimasa Sakai, Hiroshi Masumoto, Yoshiyuki Takami, Kenzo Yasuura, Akihiko Usui, Y. Takagi
Publikováno v:
Journal of Cardiac Surgery. 14:103-108
The maze procedure may be performed in combination with valve operations to treat chronic atrial fibrillation associated with valve dysfunction. Although we initially used the modified Cox maze III procedure, a more limited partial maze procedure is
Publikováno v:
Artificial Organs. 21:694-699
The hemolytic effect of the secondary vane system, the antithrombogenic structure incorporated into the back side of the impeller of the C1E3 Gyro pump, was investigated. Impellers with 0, 2, 3, and 4 secondary vanes and an additional impeller with 2