1. Quick targeted hemostasis to reduce postoperative recovery time of patients. 2.Reduce many serious complications caused by the high pressure method. 3. Humanized structural design is in line with the physiology of vascular dissection at thepuncture site of theradial artery of the forearm, to ensure normal uinar artery blood flow, and easy to fix, withoutdisplacement. 4. Air bag elastic pressure belt can be adjusted, easy to operate, can meet the patient'scomfort requirements to the greatest extent, easy to nursing observation.