The purpose of this dissertation lies on the exploration of clinical effect and applicability of GOD’S HAND, the hemostatic tool, which is widely used at the final stage of hematal surgeries. From October, 2010 through March, 2011, a tracking research through a phone survey was made on 148 patients, who received paracentesis on the common femoral artery for the sake of different diagnosis or treatment e.g. hepatic artery chemoembolization, cerebral aneurysm angiography, balloon angioplastry and/or bronchial artery embolization. For those in intensive care unit the data was collected on the basis of their medical records. It is known that some complications may develop posterior to using any hemostatic tool, and are roughly divided into major and minor ones. The major complications comprise the vascular occlusion such as arterial dissection and/or occlusion, any need for further surgery, interventional radiology or internal treatment, and the ineludible extension of hospitalization period. The minor complications comprise any diagnosis which requires mild treatment for inguinal hematoma, continuous pain and/or delayed hemorrhage. The indicator of obesity degree, body mass index (BMI), which divides the weight by the height in linear meter raised to the second power, was deployed to tell the difference in the pressure measured by the patients' physique. Any patient with higher body mass index demonstrated relatively longer stanch time than the ones with lower index after applying differential pressure levels of 100㏄, 120㏄ and 150㏄ to the subjects, who were classified into three categories e.g. low weight, normal weight and overweight, on the basis of computed body mass indices by each physique, which suggests that obese patients require more time for the control of hemorrhage. A further analysis on the correlations between stanch time and complications of the patients with or without PC(plealet concentrate) and/or FFP(fresh frozen plasma) transfusion indicates that the rate of the patients transfused with plealet concentrate and/or fresh frozen plasma, whose hemostatis ceased within 6 minutes, increased from 78% to 96%, the figure of which is far higher than that of the non-transfused. Out of the whole control group under any surgical measure, seven cases(5%) account for different complications, four(2.7%) for delayed hemorrhage, two(1.4%) for inguinal hematoma, and one(0.9%) for fail. While patients who received any artery surgery with the assistance of Safeguard but without the transfusion of PC and/or FFP needed four hours until the point of hemostasis, only three hours were necessary when GOD’S HAND was exploited for the procedure. In conclusion, GOD'S HAND, the hemostatic tool followed by vascular radiology, is thought to be a safe and useful equipment as it yields the patient at least an hour earlier walking capability, and alleviates the practitioner’s burden shortening five to ten minutes of usual hemostatic time to two to six, and lowers the minor complication rate to 5% from 10% as indicated in existing dissertations on hemostatic tool.