护士在给病人抽血或打点滴时为了找到血管,都用硅胶管将手臂缠上扎紧,以使血管显现出来。打完针后放开止血带,多数病人被捆扎的部位很快不见痕迹。但由于胶管细勒紧时就像绳子一样,使糖尿病之类的病人很长时间不能恢复,给病人造成一定的痛苦。我们自行设计了一种充气式止血带, When a nurse draws blood or drips blood to a patient to find a blood vessel, he or she is wrapped around the arm with a silicone tube to make the blood vessels appear. After the needle was opened, the tourniquet was released and most of the patients’ sites were quickly visible. However, because the hose is tightly tightened like a rope, patients like diabetes can not recover for a long time, causing some pain to the patient. We designed an inflatable tourniquet ourselves.