相关实验视频

Updated: May 7, 2026

In Vitro Model of Physiological and Pathological Blood Flow with Application to Investigations of Vascular Cell Remodeling

In Vitro Model of Physiological and Pathological Blood Flow with Application to Investigations of Vascular Cell Remodeling

Published on: November 3, 2015

关于关键血过器参数的时间演变 - 在同流流量下进行体外研究

Anastasios J Karabelas¹, Alexandra Moschona¹, Konstantinos Merenidis¹

¹Chemical Process and Energy Resources Institute, Centre for Research and Technology-Hellas, Thermi, 57001 Thessaloniki, Greece.

|September 27, 2024

概括

血过器中的同流流改善了跨膜压力均性,从而获得了更准确的性能数据. 这种方法增强了对血液过器参数在血液化过程中的理解.

科学领域:

生物医学工程生物医学工程
流体力学流体力学流体力学

背景情况:

血过器 (HF) 的性能对于血液透析和血液透症至关重要.
准确确定有效透率 (K_P) 和超系数 (K_UF) 等参数是具有挑战性的.
当前逆流流可能导致不均的跨膜压力 (TMP).

研究的目的:

为了证明同流流量对单向过和血过器中均的TMP的好处.
在同流流下调查血过器关键性能参数的时间演变.
为了将蛋白质质量流与不同条件下的透性相关联.

主要方法:

使用人体血和BSA溶液在同流流模式中的实验研究.
开发一种流体机械模型来分析流动力学.
测量有效透率 (K_P),超过系数 (K_UF),选系数 (SC) 和蛋白质质量流量 (M_m).

主要成果:

同流流量实现了相当均的局部TMP,减少了轴向变化.
当地TMP的统一性提高导致了更统一的蛋白质膜污染.
由于膜污染,观察到K_P的时间变化和下降,影响其他参数.
在白蛋白/蛋白质质量流 (M_m) 和透性 (K_P) 之间建立了强烈的相关性.

结论:

同流流量为血过器参数提供准确和代表性的数据获取提供便利.
在同流下统一的TMP有助于解释和关联HF性能数据.
结果支持进一步探索临床血 Catharsis 应用的同流流量.

关键词:

专辑蛋白损失专辑蛋白损失同流的流量是一流的流量.血液透症的参数是什么透性透性的这是一个选系数.超过系数的过系数.

更多相关视频

Three-Dimensionally Printed Microfluidic Cross-flow System for Ultrafiltration/Nanofiltration Membrane Performance Testing

Three-Dimensionally Printed Microfluidic Cross-flow System for Ultrafiltration/Nanofiltration Membrane Performance Testing

Published on: February 13, 2016

Microfluidic Flow Chambers Using Reconstituted Blood to Model Hemostasis and Platelet Transfusion In Vitro

Microfluidic Flow Chambers Using Reconstituted Blood to Model Hemostasis and Platelet Transfusion In Vitro

Published on: March 19, 2016

相关概念视频

Glomerular Filtration Rate and its Regulation

Glomerular Filtration Rate and its Regulation

The Glomerular Filtration Rate (GFR) is a measure of kidney function, reflecting the volume of filtrate formed per minute in the kidneys. On average, GFR is approximately 125 mL/min in males and 105 mL/min in females. Maintaining a relatively constant GFR is essential for the kidneys to effectively regulate body fluid homeostasis and maintain extracellular stability.
GFR regulation involves two primary intrinsic controls: the myogenic and tubuloglomerular feedback mechanisms.
The myogenic...

Extracorporeal Removal of Drugs: Hemoperfusion and Hemofiltration

Extracorporeal Removal of Drugs: Hemoperfusion and Hemofiltration

Hemoperfusion and hemofiltration are critical techniques in medical treatments to eliminate accumulated drugs, metabolites, and electrolytes from the bloodstream. These methods are particularly vital in cases of accidental poisoning and drug overdose.Hemoperfusion involves passing blood through an adsorbent material to remove unwanted substances. The main adsorbents used in hemoperfusion include activated charcoal and Amberlite resins. Activated charcoal can adsorb both polar and nonpolar...