Conclusions The posterior coaxial portals via PTT sheath for ankle arthroscopy have such advantages as easy maneuverability, superior safety, clear vision and larger operation field under arthroscopy.
结论经胫后肌腱鞘的踝关节镜后方共轴入路，具有操作简便、安全性好、镜下视野清楚、操作空间大的优点。
Because of no local anesthesia, tissue edema is lightened, operation field is clear.
由于未加用局部麻醉，局部组织水肿减轻，手术解剖关系更清晰。
Results the special skills, expert cooperation, keep the doctor's visual field clear, and transfer instruments exactly and quickly during operation are very important for nursing assistant.
结果手术中，助手娴熟的专业技能、默契的配合，时刻保持医师视野的清晰、准确快速平稳地传递器械是护理配合的重点。
This paper also introduces 8 measures to reduce bleeding during operation, so as to make the operation field clear, avoid residue and recurrence.
本文还提出了减少术中出血的8种措施，力求手术视野清晰，防止残留和复发。
The utility model has the advantages of simple structure, clear image, easy operation, complete function, low cost, and wide applications in the technical field of teaching, scientific research, etc.
该机结构简单，成象清晰，易于操作、功能齐全，造价低廉，可广泛用于教学、科研等领域。
Conclusion Endoscope is easy to manipulate with a clear operation field, and can, therefore, be used in myringoplasty for all kinds of tympanic membrane perforations using sandwich technique.
结论耳内镜使用方便、术野清晰，夹层法适合于各种类型的鼓膜穿孔。
Conclusion Endoscope is easy to manipulate with a clear operation field, and can, therefore, be used in myringoplasty for all kinds of tympanic membrane perforations using sandwich technique.
结论耳内镜使用方便、术野清晰，夹层法适合于各种类型的鼓膜穿孔。
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