北京生物醫(yī)學工程

第一肝門血流阻斷器的結(jié)構(gòu)設(shè)計與性能研究

Structural design and performance of the first hepaticportal blood flow blocker

作者：石更強尹帥帥孫旭陽

單位：上海理工大學醫(yī)療器械與食品學院(上海200093)<br />通信作者:石更強° E-mail ：yincsy@ 163.com

關(guān)鍵詞：第一肝門;血流阻斷;結(jié)構(gòu)設(shè)計;參數(shù)計算;模擬實驗

分類號：R318.01

出版年·卷·期（頁碼）：2022·41·6（616-622）

摘要：

目的腹腔鏡手術(shù)難度大，手術(shù)過程常存在出血問題。為了控制血流速度，本研究設(shè)計了一款利用氣囊阻斷血流的阻斷裝置，可以在手術(shù)過程中將第一肝門完全扎緊。方法本文通過對現(xiàn)有阻斷器結(jié)構(gòu)的研究，設(shè)計了一種用于腹腔鏡下阻斷第一肝門的血流阻斷器，利用流體使氣囊膨脹,壓縮血管外壁達到阻斷血流的效果。結(jié)果通過方程計算和運用ANSYS軟件分析,氣流流速達到8 m/s時，流體運動狀態(tài)最為均勻。利用伯努利方程，計算得出阻斷所需要的壓力。搭建實驗裝置，進行體外模擬實驗，模擬肝門靜脈被阻斷過程，對阻斷效果進行可用性評價。結(jié)論本文設(shè)計的血流阻斷裝置可以對血管有很好的阻斷效果。

Objective Laparoscopic surgery is difficult, and there is often a problem of bleeding during the operation. In order to control the blood flow velocity, this study designs a blocking device by using air bag to block the blood flow, which can fasten the first hepatic hilum completely during the operation. Methods In this paper, through the study of the existing structure of the blocker, a kind of blood flow blocker for the first hepatic hilum blocking under laparoscope is designed. Results Through equation calculation and ANSYS software analysis, the flow velocity reaches 8 m/s, the fluid movement state is the most uniform. Bernoulli equation is used to calculate the pressure required for the blocking. The experimental apparatus is set up to simulate the process of hepatic portal vein being blocked in vitro, and the usability of the blocking effect is evaluated. Conclusions The designed blood flow blocking device can have good blocking effect on blood vessels.

參考文獻：

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