METHODS:After doing cholecystectomy,check operation for abnormality and place medical PVC unicameral drainage-tube in gallbladder bed and foramen of Winslow foramen with the other end led outside of the body and connected with negative pressure bag.

• 方法：在胆囊切除后，检查手术野无异常后，放置医用 P V C 单腔引流管于胆囊床及小网膜孔处，另端引出体外并连接负压袋。