作者用激光衍射法研究了凝集素ＣｏｎＡ对红细胞在低粘度低剪切率流场中小变形及其在Ｃ＝０轨道取向的影响。结果表明，在各种低剪切率γ下均有ＣｏｎＡ对红细胞作用的量越大，红细胞变形指数ＤＩ和取向指数ＯＩ就越小。这可能是由于ＣｏｎＡ与红细胞膜上的受体结合，改变了细胞膜的成分、红细胞膜刚性增强、粘弹性下降的结果。 The authors used laser diffraction to study the effect of ConA on the small deformation of erythrocytes in the low viscosity low shear rate flow field and its orbit orientation at C = 0. The results showed that the greater the amount of ConA on erythrocytes at various low shear rates γ, the smaller the erythrocyte deformability index DI and the orientation index OI. This may be due to ConA and red blood cell membrane receptors, changing the composition of the cell membrane, erythrocyte membrane rigidity increased viscoelasticity decreased results.