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軸流式血泵溶血數(shù)學(xué)模型的探究

Exploration on Hemolytic Mathematic Model of Axial Flow Blood Pump

作者: 軒艷姣    常宇    宋淼 
單位:北京工業(yè)大學(xué)生命科學(xué)與生物工程學(xué)院(北京100124)
關(guān)鍵詞: 溶血;軸流血泵;數(shù)學(xué)模型 
分類號:
出版年·卷·期(頁碼):2011·30·2(127-131)
摘要:

溶血的定量評價對于血泵的設(shè)計和研究十分重要,而建立血泵溶血的數(shù)學(xué)模型,對于血泵溶血的預(yù)測,提高其血液相容性具有十分重要作用。本文在分析與血泵溶血相關(guān)因素的基礎(chǔ)上,首先從能量守恒定律確定軸流式血泵葉輪驅(qū)動力的輸出功可分兩部分提供給血液:用于提高血液壓力的能量以及用作血液溶血的能量。然后采用動力系統(tǒng)轉(zhuǎn)矩方程和能量方程,建立血泵輔助循環(huán)溶血模型。最終建立了能夠定量評價血泵在不同工作狀態(tài)下(正常狀態(tài)和抽吸狀態(tài))溶血程度的數(shù)學(xué)公式。本文對軸流式血泵的溶血問題提供了新的研究思路,將對血泵及其控制系統(tǒng)的改進提供重要的依據(jù)。

The quantitative evaluation of hemolysis is very important for the designing and studying a blood pump,so establishing a hemolytic mathematic model is very significant for predicting the hemolysis,improving the blood compatibility of axial flow blood pump and reducing the damage to blood.Based on analyzing the correlative factors of hemolysis,first we studied the hemolysis problem from the viewpoint of conservation of energy,and ascertained that the output power produced from the pump’s impellers could be divided into two parts,one was used to increase blood pressure and the other was led to hemolysis.After that we confirmed the hemolytic model by dynamic system torque and energy equations.Finally,we established the mathematical formula of blood pump in different conditions (normal and suction) to evaluate the hemolytic value.This paper provides a new idea for studying the hemolytic problems,and gives scientific basis for improving a blood pump and its controlling system.

參考文獻:

[1]吳樹明.人工心臟[J].山東醫(yī)藥,2003,(6):42-44.
[2]封志剛,曾培,茹偉民,等.葉輪 設(shè)計對葉輪式人工心臟溶血性能的影響[J].中國生物醫(yī)學(xué)  工程學(xué)報,2003,22(2):20-22.
[3]田步升,李國榮,崔愛玲,等.負壓對機械轉(zhuǎn)流管道中血流溶血過程的影響[J].中華物理醫(yī)學(xué)與康復(fù)雜志,2000,22(3):24-28.
[4]侯旭.細胞膜和細胞骨架在細胞受力過程中的保護作用[J].國外醫(yī)學(xué)生物醫(yī)學(xué)工程分冊,2005,28(4):193-197.
[5]陳建中,張錫文,趙春章,等.微型軸流血泵溶血的數(shù)值模擬[J].北京生物醫(yī)學(xué)工程,2007,26(2):117-119.
[6]Laroche C,Beney L,Marechal PA,et al.The effect of osmotic pressure on the membrane fluidity of Saccharomyces cerevisiae at different physiological temperatures [J].Applied Microbiology and Biotechnology,2001,56(1-2): 249-254.
[7]Apel J,Paul R,Klaus S,et al.Assessment of hemolysis related quantities in a microaxial blood pump by computational fluid dynamics [J].Artif Organs,2001,25(5):341-347.
[8]Wachter DDe, Verdonck P.Numerical calculation of hemolysis levels in peripheral hemodialysis canulas [J].Artif Organs,2002,26(7):576-582.
[9]Tamagawa M, Minakawa S.Predictions of index of hemolysis in shear blood flow (effects of exposure time under shear stress on prediction accuracy) [J].JSME Int J Ser C,2003,46(2): 604-613.
[10]Goubergrits L, Affeld K.Numerical estimation of blood damage in artificial organs [J],Artif.Organs,2004,28(5):499-507.
[11]Lacasse D,Garon A,Pelletier D. Mechanical hemolysis in blood flow: user-independent predictions with the solution of a partial differential equation [J].Computer Methods in Biomechanics and Biomedical Engineering,2007,10(1): 1-12.
[12]馬宏忠.電機學(xué)[M].北京:高等教育出版社,2009.
[13]陳寧寧.心室輔助血泵的控制模塊構(gòu)建[D].北京:北京工業(yè)大學(xué),2010.
[14]云忠.血液機械損傷機理及高速螺旋血泵結(jié)構(gòu)優(yōu)化研究[D].長沙:中南大學(xué),2007.

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