無脈動泵 的英文怎麼說
中文拼音 [wúmàidòngbèng]
無脈動泵
英文
pulseless pump-
Objective : to investigate the effect of pumpless portosystemic bypass in clinical piggyback liver transplantation. methods : after catheterized inferior mesenteric vein, the silastic catheter ( filled with heparin saline ) was connected with the catheterized tube of internal jugular vein or subclavian vein in four piggyback liver transplantation patients. the channel was opened after the portal vein was occluded. the portal vein blood poured into the superior vena cava through the pumpless channel. the changes of mesenteric congestion, portal vein pressure, blood pressure and pulse were observed. results : during the occlusion of portal vein, the portal vein pressure was increased greatly, the intestine was congested and swelled obviously and the blood pressure and pulse fluctuated gently. after the pumpless bypass opened, intestinal congestion and swell were abated markedly, the portal pressure, blood pressure and pulse gradually returned to normal range. conclusions : pumpless portosystemic bypass shows a great effect on clinical piggyback liver transplantation. it is a feasible and economical method
目的探討背駝式原位肝移植術中採用體外門-體靜脈無泵轉流的臨床效果.方法4例行背駝式原位肝移植患者，腸系膜下靜脈屬支插管經體外硅膠管（充滿肝素鹽水）與頸內靜脈或鎖骨下靜脈插管相接，在阻斷門靜脈后開通腸系膜下靜脈插管，門靜脈血從體外無泵轉流管流入上腔靜脈，觀察轉流前後腸道瘀血、門靜脈壓、血壓、脈搏等變化情況.結果門靜脈阻斷后腸道明顯瘀血、腫脹，門靜脈壓力明顯升高，血壓、脈搏有不同程度的波動，無泵門靜脈轉流開放后，腸道瘀血、腫脹明顯好轉，門靜脈壓力逐漸恢復正常水平，血壓、脈搏恢復正常.結論背駝式原位肝移植術中體外門-體靜脈無泵流具有方便、經濟、實用等優點，具有良好的臨床效果The researchful results indicate that the flux pulse ration of ordinary helical gear pump without clearance is less than that of the gear pump with clearence under the condition that the main parameters are same, and the flux pulse ration of ordinary helical gear pump is less than that of whole profile meshing helical gear pump
研究結果表明：在主要參數相同的情況下，普通斜齒齒輪泵無側隙時流量脈動率小於有側隙時的流量脈動率；全齒廓嚙合斜齒輪泵比普通斜齒輪泵的流量脈動略小。If the muscle pump is not working eg due to immobilization, the blood flow in the veins may decrease known as venous stasis to the point where small thrombi may form
如果肌肉泵作用無法正常發揮比如長期不運動，血液的流動就會減慢靜脈淤血，從而產生血液里的凝結。The nonuseful loss of cavity were got by measuring the threshold of laser under the different output mirrors. the loss was caused by prague angle unmatching. 3. the pulse train with minor pulse width 22ns and frequency 23khz, peak power 3. 5kw were obtained in cr4 " : yag passively q - switch experience. the stability of pulse is 6 %
（ 3 ）實現了在大功率泵浦、無水冷的情況下cr ~ （ 4 + ） : yag飽和吸收體被動調q ，得到了最小脈寬為22ns 、重復頻率為23khz 、峰值功率為3 . 5kw的激光脈沖輸出，脈沖的穩定性為6 。From the blood pressure we can know about the heart ' s ability to pump blood, pulse rate, blood vessel ' s resistance, main artery and big artery ' s elasticity, the blood capacity of whole body, blood ' s physical state, etc. so the mesurement of the blood pressure is very importment to clinic diagnose. how ever, how to get the exact and credible blood pressure parameter by the no invasion and economical method is still the problem of the biomedicine field
心臟的泵血功能、心率、周圍血管的阻力、主動脈和大動脈的彈性、全身的血容量及血液的物理狀態等因素都反映在血壓的指標中，所以血壓的檢測在臨床上具有十分重要的意義。而如何用無創、經濟的方法獲得準確、可靠的血壓參數仍是生物醫學領域不斷在探索的問題。To eliminate pressure oscillations, variables are stored in a staggered grid system. solving n - s equation with simple arithmetic, calculate the internal flow of 3 - d incompressible in the channel nonclogging pump. 6
為消除齒形壓力脈動，採用交錯網格存放變量，用simple演算法求解n - s方程，對無堵塞泵葉輪內部三維不可壓湍流場進行數值模擬； 6分享友人