When the heart contracts, the chambers become smaller, forcing blood first out of the atria into the ventricles, then from each ventricle into a large blood vessel connected to the top of the heart.
当心脏收缩的时候，腔室会变小，首先迫使血液从心房出来进入心室，然后从每个心室进入一个连在心脏上方的大血管。
The catheter is then withdrawn back into the right ventricle, with the first disc positioned against the left ventricular wall and the connecting shaft filling the hole created by the rupture.
导管接着后退进入右心室，随着第一片定位在左心室壁上，连接轴填充心脏破裂所形成的缺损。
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