Chinese patent medicines for softening blood vessels, clinically common are the following: First, Salvia officinalis, aqueous extract of Salvia officinalis can inhibit platelet aggregation due to adrenaline, inhibit 5-hydroxytryptamine release and enhance fibrinolytic activity, therefore clinically used for acute myocardial infarction, as well as coronary heart disease, thrombo-occlusive vasculitis, venous thrombosis, etc. Secondly, calendula officinalis, a flavonoid active ingredient extracted from the traditional Chinese medicine calendula officinalis, is used in the treatment of occlusive vascular diseases according to reports of significant effects. Third, Chuanxiongzin, an active ingredient extracted from Chuanxiong rhizome, can inhibit collagen-induced platelet aggregation and inhibit arachidonic acid metabolism of platelets in vitro, and is clinically used for the treatment of acute myocardial infarction. Fourthly, Flavopiridol, which can effectively reduce the platelet aggregation, the mechanism of action is to increase the platelet cAMP. Fifth, ginkgo biloba, extracted from the ginkgo tree ginkgo biloba is the most powerful inhibitor of platelet activity factor known.