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.

youdao

一旦导管进入心脏，心脏病医生即可将一种特制的叫做间隔堵闭器的装置送入缺损内，阻止血流经过。

Once the catheter is in the heart, the cardiologist will pass a special device, called a septal occluder, into the open ASD preventing blood from flowing through it.

youdao