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damage to blood
相关语句
  血液破坏
    Performances of outputting,sealing,heat creating and damage to blood by the pump were investigated.
    体外和在体试验中分别测试血泵的动力学输出、密封、产热和血液破坏等性能。
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  “damage to blood”译为未确定词的双语例句
    For a blood pump,the damage to blood is a very important index for evaluating it.
    血泵对血液的破坏程度是衡量血泵性能的一个重要指标。
短句来源
    This device has been prove d safe and reliable and has little damage to blood cell through clinical applica tion.
    通过临床验证,血液处理仪管路截止部件使用安全、可靠,行之有效,且对血液细胞几乎不造成破坏.
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  damage to blood
The protective effect of ischemic preconditioning on brain tissue during total ischemia is shown by using spectral-luminescence methods for estimating oxidative damage to blood components after ischemia.
      
Such an event could be damage to blood vessels, which would result in local tissue hypoxia.
      
The operation of placing the camera is technically simple and excludes any damage to blood circulation in the skin.
      
Histological analysis revealed severe changes in the most acidic treatment, with damage to blood, gill, and epithelial tissue.
      
These processes are both triggered by damage to blood vessels and a response which occurs within seconds of this damage is the adhesion of platelets to the injured tissue and to each other.
      
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The major problems of current clinically-used mechanical heart valves are thromboembolism and hemorrhage related to anticoagulants. These mechanical heart valves are considered as being unsatifactory, because in the open position, the leaflets and struts divide the ring orifice of the valve into 3-4 regions. In this obstructive orifice, the high turbulent shear stresses and the region of flow separation and stagnation all give rise to the occurrence of thrombosis. In our design of mechanical heart valve, in...

The major problems of current clinically-used mechanical heart valves are thromboembolism and hemorrhage related to anticoagulants. These mechanical heart valves are considered as being unsatifactory, because in the open position, the leaflets and struts divide the ring orifice of the valve into 3-4 regions. In this obstructive orifice, the high turbulent shear stresses and the region of flow separation and stagnation all give rise to the occurrence of thrombosis. In our design of mechanical heart valve, in the open position, no structural component or leaflet divides the ring orifice of the valve. Our mechanical heart valve has the best possibilities for creating more natural blood flow pattern which could creat minimal damage to blood elements and might reduce the need for anticoagulation therapy.

目前临床使用的各种机械心脏瓣膜的主要问题是血栓栓塞和与抗凝治疗有关的出血,其缺陷在于瓣膜开启时,碟片和支架将瓣膜的整个血流通道分隔成三至四个较小的血流通道。在这种受阻隔的血流通道中,形成容易诱发血栓的高剪应力区、紊流和滞流区。我们研制的两种机械心脏瓣膜在瓣膜开启时,没有任何支架和碟片分隔瓣膜的血流通道,使血流与天然心脏瓣膜中的相类似,可减少对血液的危害,从而可减少换瓣病人对抗凝治疗的依赖程度。

For rotating blood pump,the sealing problem is a very important one to solve.In this paper,it is introduced that we designed and made a small axial flow pump,applying the magnetic coupling method.The pump consist of a pump body,a brushless DC motor,an impeller,a pair of magnetic discs,a spacer,a blood trough ,a support frame,etc.The pump is made of titanium and is 125mm length,147ml volume,total 380g of weight.Performances of outputting,sealing,heat creating and damage to blood by the pump were investigated.Results...

For rotating blood pump,the sealing problem is a very important one to solve.In this paper,it is introduced that we designed and made a small axial flow pump,applying the magnetic coupling method.The pump consist of a pump body,a brushless DC motor,an impeller,a pair of magnetic discs,a spacer,a blood trough ,a support frame,etc.The pump is made of titanium and is 125mm length,147ml volume,total 380g of weight.Performances of outputting,sealing,heat creating and damage to blood by the pump were investigated.Results showed for external experiment that:①The flow rate of the pump was 6 8L/min against 120mmHg pressure when the rotation speed was 8000rpm.②The surface temperature of the pump didn't change obviously in 120 hours of rotation,and the sealing function was very well.③For vivo experiment,free hemoglobin in blood plasma increased but fibrinogen didn't change obviously,and,at the end there was some micro thrombi at kidney of sheep and at inlet and outlet of the pump after 24 hours.There was no thrombus at the brain and other abdominal organs.

为了更好地解决旋转式叶片血泵的密封问题 ,本文中采用磁耦合驱动方式 ,设计、加工一小型轴流血泵。血泵由泵体、直流无刷电机、叶轮、一对磁片、隔膜、导流槽和支撑架等部件构成 ,总长度 12 5 m m,容积147m1,材料是 TC4钛合金 ,总重量 380 g。体外和在体试验中分别测试血泵的动力学输出、密封、产热和血液破坏等性能。结果显示 :1体外试验中 ,血泵旋转速度 80 0 0 rpm时输出为 6 .8L / m in、 12 0 mm Hg。 2在 12 0小时的连续运转过程中 ,血泵的表面温度变化较小 ;密封性能也较好。 3 2 4小时的在体试验中 ,血浆中游离血红蛋白含量逐渐增大 ,纤维蛋白原未发生明显变化 ;除血泵的进出接口处和动物肾脏发现微小血栓外 ,脑部和其它腹部脏器未发现血栓。

For a blood pump,the damage to blood is a very important index for evaluating it.In this paper,we discussed hemolysis test about three kinds of impeller blood pumps.In vitro experiment,a model Ⅰ centrifugal pump、a magnetic coupling axial flow pump and a spiral mixed pump were selected.500ml anticoagulant sheep blood were input into a closed pipeline loop.The simulated conditions were:5L/min flowrate,100mmHg average pressure and 37℃ temperature of water bath.When the pump had rotated for 0、0...

For a blood pump,the damage to blood is a very important index for evaluating it.In this paper,we discussed hemolysis test about three kinds of impeller blood pumps.In vitro experiment,a model Ⅰ centrifugal pump、a magnetic coupling axial flow pump and a spiral mixed pump were selected.500ml anticoagulant sheep blood were input into a closed pipeline loop.The simulated conditions were:5L/min flowrate,100mmHg average pressure and 37℃ temperature of water bath.When the pump had rotated for 0、0 5、1 0、1 5、…4 0 hours,we measured the free plasma hemoglobin and fibrinogen.At last,normalized indexes of hemolysis for the three pumps were calculated.The results showed that the values of NIH were 0 1125±0 0157g/100L、0 0931±0 0137g/100L和0 0561±0 0058g/100L,respectively.All of the three blood pumps caused different levels of damage to the blood.The best hemolysis results were from the mixed blood pump.

血泵对血液的破坏程度是衡量血泵性能的一个重要指标。本文针对三种叶片式血泵即离心泵、轴流泵、混流泵的溶血试验做一比较分析。在试验中 ,选用了我们研制的Ⅰ型离心血泵、磁耦合型轴流血泵、螺旋混流泵。在一封闭管道中 ,注入新鲜抗凝羊血 5 0 0ml,水浴温度 37℃ ,血泵辅助流量为 5L min ,平均压力10 0mmHg,分别在泵转后 0、 0 5、 1 0、 1 5、… 4 0h测量血浆中游离血红蛋白 (FHB)和纤维蛋白原 (FIB)含量 ,最后计算出三个血泵整个过程中的标准溶血指数NIH。结果表明三种血泵对血液都有一定的破坏 ,它们的NIH值分别为 0 112 5± 0 0 15 7g 10 0L、 0 0 931± 0 0 137g 10 0L和 0 0 5 6 1± 0 0 0 5 8g 10 0L ,由此可得出混流泵对血液的破坏最小。

 
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