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Tytuł oryginału: Left ventricle simulator for surgeons support.
Autorzy: Umezu Mitsuo, Arita Makoto, Iwasaki Kiyotaka, Shiraishi Yasuyuki, Tono Sumihiro, Uchida Koji
Źródło: Biocybern. Biomed. Eng. 2002: 22 (4) s.47-53, il., bibliogr. 2 poz.
Sygnatura GBL: 306,224

Hasła klasyfikacyjne GBL:
  • kardiologia

    Typ dokumentu:
  • tytuł obcojęzyczny
  • praca doświadczalna

    Streszczenie angielskie: The authors have been developing various types of mock circulatory systems to evaluate a performance of artificial organs. Among several attempts, it was indicated that a stimulation of the mitral valve region was very difficult due to a complicated shape and movement of the valve. In this paper a new trial to install a porcine valve into the mock circulatory systemis introduced. A fresh porcine valve with papillary muscles and chordae was fixed into the mitral position of the modified Windkessel-type mock circulatory system. To allow direct 3-D observation of the mitral annulus, a digital video camera and a laser displacement sensor were employed. A circulation was generated by a pneumatically-driven artificial ventricle. When a normal circulatory condition (pump rate: 70BPM, Flow: 3L/min) was selected, similar opening and closing motion to the natural mitral valve could be reproduced. Moreover, a diseases condition was made by shifting a position of papillary muscles. After this procedure, an abnormal movement, such as significant leakage, could also be reproduced.

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