RESUMEN
Objective To study the effects of ultrafiltration process on activating blood and removing blood stasis efficacy ofShentong Zhuyu Decoction; To investigate the feasibility of applying ultrafiltration technology in purifying Shentong Zhuyu Decoction.Methods The mice micro artery and vein diameter, clotting time and opening capillary of auricle microcirculation of mice were used as indexes to observe the effects of different ultrafiltration process on activating blood and removing blood stasis efficacy ofShentong Zhuyu Decoction.ResultsShentong Zhuyu Decoction showed satisfying efficacy of activating blood and removing blood stasis. There was no significant difference between the non-ultrafiltration process and ultrafiltration processed by 20 and 50 nm ultrafiltration membranes.Conclusion Ultrafiltration technology can be applied to purifying Shentong Zhuyu Decoction, and the membrane pore size must be more than 20 nm.