Conclusion: to avoid misdiagnosis of trachealforeignbody, clinicians should collect medical history carefully and pay more attention to the characteristic physical signs.
结论：对疑似气管异物的儿童患者，应仔细采集病史，注意特有体征，减少误诊。
2
The extractor has simple structure and convenient use, can successfully take out the trachealforeign-body and relieve the pain of the patient.