摘要
Based on the study for the effects of the viscosity of suspending medium upon RBC deformability with Ektacytometry,we further researched the influence of the viscosity of suspending medium upon the orientation and deformatioin of RBCs in the orbit"C=0"with a new Ektacytometry developed by ourselves.The results of the study show that the number of RBCs in the orbit"C=O"was obviously reduced due to the un-stability of the flow field of low viscosity at high shear rate region.So the precision for detecting the orientation index(DI)or and the deformation index(DI)a was seriously affected.On the other hand,(DI)。will obviously decrease due to the resistant effect of viscous force of suspending medium on RBCs in a shear flow field.Meantime,the de-formation of RBCs in the orbit"C=0"rises and falls slightly in a shear flow field of low viscosity and the deformation in the orbit"C=π/2"(tank treading motion)increas-es with the viscosity of suspending medium in a shear flow field of high viscosity.In this paper,through studying of the viscosity rfsuspending medium on the orientation and the deformation of RBCs,we will experime...lly give a optimum viscosity of suspending medium for the new Ektacytometry to obtain both(DI)or and(DI).for the best precision and will get a new Ektacytometry based on reliable theory and practice.
