血液透析过滤传质动力学的简化模型

A GENERALIZED MASS TRANSFER MODEL FOR HEMODIAFILTRATION

血液透析（HD）、血液过滤（HF）和血液透析过滤（HDF）是目前临床上治疗慢性肾功能衰竭最常用的 3种疗法。以往人们对 HD的传质动力学作了较多的研究l’，‘］，而对HF、HDF的研究则较少。虽然PopoviCh等门、Jaffrln等M相继提出了描述HF、HDF传质动力学的一、二维模型，但文献囚的模型仅适用J” HD和 HDF；而巳。

A generalized mass transfer model describing hemodialysis, hemoflltration andhemodiafiltration is proposed and solved in this paper. The effects of various parameters on mass transfer characteristics are analysed. Experimental results in vitro are proven to coincide with theory. The maximum relative error is less than 10%.