目的：探讨多普勒止血带与气囊止血带在四肢手术患者中的应用效果。
Pneumatic tourniquet was used in control group and Doppler tourniquet was used in observation group, and the effect of application was observed.
肘部周围的手术可使用无菌气囊止血带，在应用前肢体可先进行皮肤消毒、铺单。
Sterile pneumatic tourniquets are available for operations about the elbow, and the limb may be prepared and draped before the tourniquet is applied.
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