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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/35279

    Title: 三葉片機械心瓣轉軸系統的改良與測試
    Other Titles: Modification and testing of the pivot system of a trileaflet mechanical heart valve
    Authors: 陳子偉;Chen, Zih-wei
    Contributors: 淡江大學機械與機電工程學系碩士班
    盧博堅;Lu, Po-chien
    Keywords: 三葉片機械心瓣;中央開孔;體外模擬;樞紐凹槽;trileaflet mechanical heart valve;central flow;mock circulate loop;fillister
    Date: 2005
    Issue Date: 2010-01-11 06:18:21 (UTC+8)
    Abstract: 本研究所設計的三葉片機械心瓣,乃採用中央開孔式的結構,符合人體自然心瓣的運作方式。和傳統的單葉或雙葉機械心瓣相比,此三葉片機械心瓣的中央孔口,可加大中央孔口有效面積、避免血液分離、減少壓差產生。
    This research designed trileaflet mechanical heart valve, which opens from the center with a central flow, similar to the function of the human body aortic valve. Compared with the traditional monoleaflet and bileaflet valves, the central orifice of the trileaflet valve increases the effective area, as a result decreasing the pressure drop and the fluid separating.
    First, use the Pro/E program to design the trileaflet mechanical heart valve, then use CNC to manufacture the enlarge plastics model, and the titanium alloy prototype model. Finally, we observed the opening and closing behaviors in a mock circulate loop.
    The leaflets of the mechanical heart valve become thinner and easier to open and close. The depths of the fillister are deeper, therefore the leaflet hinges were wrapped up and covered more with the fillister to prevent the leaflets to drop off. When the valve is opened, the leaflet contacts the corresponding face of the protruding hinge. When the valve is closed, the ridge tightly seals with the notch of the leaflet.
    Appears in Collections:[機械與機電工程學系暨研究所] 學位論文

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