所述尿道扩张导管包括设置在所述扩张导管内的上皮和闭孔装置。
The urethra dilatation catheter comprises an epitheca and a hole closing device arranged in the epitheca.
呼吸保护装置。与全罩式面罩、半罩式面罩或口罩一起使用的压缩空气导管呼吸装置。要求、试验和标志。
Respiratory protective devices - Compressed air line breathing apparatus for use with a full face mask, half mask or a mouthpiece assembly - Requirements, testing, marking.
一旦导管进入心脏，心脏病医生即可将一种特制的叫做堵闭器的装置送入导管内阻止血流经过。
Once the catheter is in the heart, the cardiologist will pass a special device, called a coil or occluder, into the open PDA preventing blood from flowing through it.
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