方法用自行研制的金属扩张套管置管引流治疗急性化脓性膝关节感染8例，踝关节感染3例。
Methods the dilated metallic ducts designed by ourselves were applied to drain the acute pyogenic arthritis, including 8 knee joints and 3 ankle joints.
本文介绍了热收缩套管的收缩机理及成型方法，如气压吹胀法、机械扩张法和缠绕法等。
This article introduces the shrinking mechanism and molding process of heat-shrinkable tubes, Such as air inflation, mechanical expanding and winding etc.
套管和扩张器能够方便地组合在一起或彼此分离。
The cannula and the expander can be easily combined together or separated from each other.
套管和扩张器能够方便地组合在一起或彼此分离。
The cannula and the expander can be easily combined together or separated from each other.
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