A portable in vitro liver perfusion preservation device, which is characterized in that it has a A, for the storage of liver (14) of the water bath box (1), the water bath with water and interlayer, an electric heater is arranged in the water layer (2) and a temperature sensor (3), (in a water bath box 1) with hepatic artery perfusion entrance (1.4), portal vein perfusion entrance (1.5) and inferior vena cava perfusion outlet (1.6) and (1.7), the export of bile in the water bath box (1) is provided with a support for the liver (14) hemodialysis membrane (1.8), and it is also equipped with B an oxygenator (9), inferior vena cava perfusion on the outlet of the water tank (1.6) and oxygenator (9) perfusion liquid entrance is the oxygenator (9) perfusion liquid The mouth is divided into two parts, a road connected to a peristaltic pump through a duct (5) and a pressure sensor (6) and a water bath box (1) of hepatic artery perfusion on the entrance (1.4), resulting in the formation of isolated liver (14) hepatic artery perfusion loop, another way through the catheter connected to another creep a pneumatic pump (7) and a pressure sensor (8) and a water bath box (1) on portal vein perfusion entrance (1.5), resulting in the formation of isolated liver (14) of the portal vein perfusion loop; C, it also has an intelligent controller, the controller is mainly used according to the temperature sensor device (3) and two pressure sensors (6), (8) the measuring signal output through the electric heater (2) control and maintain a constant temperature water bath box by a peristaltic pump (5), (7) control of the hepatic artery and Perfusion flow of portal vein perfusion two loop is kept constant and the alarm in the water bath temperature and perfusion loop flow abnormal circumstances, the intelligent controller is composed of at least the temperature sensor (3) and a pressure sensor (6), (8) the output signal into the digital conversion of A / D the A / D converter, the converter output signal sampling and judging the MCU system (10), connected to the MCU system (10) execution module output port (11), the execution module (11) at least by the flow control execution circuit (11.1), D / A converter (11.2) and the temperature control execution circuit (11.3) and the alarm control circuit (11.5) composed of execution.
【技术实现步骤摘要】
本专利技术涉及一种用于肝移植的体外肝脏保存设备,具体地说,它是一种便携式肝脏体外灌注保存装置。
技术介绍
多项医疗研究表明,治疗急性肝功衰竭及晚期肝病唯一有效手段是肝脏移植,其存活率可比传统的内科治疗提高55%~75%。但是人源性肝脏稀少,且一般需要远距离获取,这就给临床应用带来很大困难。怎样使离体肝脏从采取地到临床应用的这段时间里存活就成了目前研究课题。在已有技术中,肝脏保存有多种方法,但近期的研究结果表明,体外灌注法具有较好的保存效果,使离体肝能存活2~3天。如果根据这一研究成果而制成便携式肝脏保存装置,可为远距离获取人源性肝脏赢得时间。但目前,在文献报导中,还未见有这样装置问世。
技术实现思路
本专利技术的目的是针对已有技术的现状,首先是提供一种便携式肝脏体外灌注保存装置,使其能为远距离获取人源性肝脏服务,其次是使本装置的控制更加安全可靠及电路结构微型化。为实现上述目的,本专利技术的解决方案如下它具有一个用于存放肝脏的水浴箱,该水浴箱带有水液夹层,并在该水液夹层中设有电加热器和温度传感器,在所述的水浴箱上设有肝动脉灌注入口、门静脉灌注入口和下腔静脉灌注出口及胆汁出口,在该水浴箱中设有一个用于托起肝脏的透血膜;它还设有一个氧合器,所述水浴箱上的下腔静脉灌注出口与氧合器的灌注液入口相通,所述氧合器的灌注液出口分为两路,一路通过导管依次连接蠕动泵和压力传感器及水浴箱上的肝动脉灌注入口,从而形成离体肝的肝动脉灌注循环回路,另一路通过导管依次连接另一个蠕动泵和另一个压力传感器及水浴箱上的门静脉灌注入口,从而形成离体肝的门静脉灌注循环回路;它还具有一个智能型控制器,该控 ...
【技术保护点】
【技术特征摘要】
1.一种便携式肝脏体外灌注保存装置,其特征是A、它具有一个用于存放肝脏(14)的水浴箱(1),该水浴箱带有水液夹层,并在该水液夹层中设有电加热器(2)和温度传感器(3),在水浴箱(1)上设有肝动脉灌注入口(1.4)、门静脉灌注入口(1.5)和下腔静脉灌注出口(1.6)及胆汁出口(1.7),在该水浴箱(1)中设有一个用于托起肝脏(14)的透血膜(1.8),B、它还设有一个氧合器(9),所述水浴箱上的下腔静脉灌注出口(1.6)与氧合器(9)的灌注液入口相通,所述氧合器(9)的灌注液出口分为两路,一路通过导管依次连接蠕动泵(5)和压力传感器(6)及水浴箱(1)上的肝动脉灌注入口(1.4),从而形成离体肝(14)的肝动脉灌注循环回路,另一路通过导管依次连接另一个蠕动泵(7)和另一个压力传感器(8)及水浴箱(1)上的门静脉灌注入口(1.5),从而形成离体肝(14)的门静脉灌注循环回路;C、它还具有一个智能型控制器,该控制器主要用于根据温度传感器(3)和两个压力传感器(6)、(8)输出的测量信号通过电加热器(2)控制水浴箱保持恒温和通过蠕动泵(5)...
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