canular

Results No bleeding,difficulty in removing the canular,unclosed fistula and pneumothorax happened.

结果所有患者无术后出血、拔管困难、瘘口不愈、气胸等并症。

It is very important to measure and control the position of bearing hole when machining canular forked shaft.

叉头套加工过程中,轴承孔置误差的测量和控制是十。