过去,在抢救危重病人及口腔手术时用的开口器,往往固定不牢,并易滑脱,给手术及抢救工作带来不利,尤其昏迷燥动及儿童哭闹不配合者更是如此。我们研制一种新式开口器,利于操作,使用方便,固位性好,效果满意。 In the past, the openers used to rescue critically ill patients and oral surgery were often poorly fixed and slippery, which brought disadvantages to surgery and rescue work, especially those who were unconscious and who did not cooperate with crying children. We developed a new type of opening device, which is conducive to operation, easy to use, good retention, satisfactory results.