Left ventricle simulator for surgeons' support

• Autorzy: Umezu M. , Arita M. , Iwasaki K. , Shiraishi Y. , Tono S. , Uchida K.
• Języki publikacji: EN

Abstrakty

EN

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 simulation 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 system is 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 diseased condition was made by shifting a position of papillary muscles. After this procedure, an abnormal movement, such as significant leakage, could also be reproduced.

Słowa kluczowe

EN

left ventricle simulator; mitral valve; mock circulation; annular motion

PL

inżynieria biomedyczna; medycyna

• Wydawca: Nałęcz Institute of Biocybernetics and Biomedical Engineering of the Polish Academy of Sciences ; Elsevier
• Czasopismo: Biocybernetics and Biomedical Engineering
• Rocznik: 2002
• Tom: Vol. 22, no. 4
• Strony: 47--53
• Opis fizyczny: Bibliogr., rys., wykr.

Twórcy

autor

Umezu M.

autor

Arita M.

autor

Iwasaki K.

autor

Shiraishi Y.

autor

Tono S.

autor

Uchida K.

• Integrative Bioscence and Biomedical Engineering, Graduate School of WASEDA University, Shinjuku, Tokyo, Japan,