目的：探讨上尿路手术中支架管的选择及其应用。

Objective: To explore the application and selection of bracket in upper ureter operation.

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最后，阐述了施工中支架预压的重要性并给出了预留沉降值。

Finally, the importance of compression in advance in construction of scaffold has been emphasized and values have been given.

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本实用新型比目前常用的锚杆对中支架的施工更方便快捷，成本低、效果好。

Compared with common anchor centering bracket, the anchor rod with centering rings is more convenient and rapid in construction, has low cost and good effect.

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