Is it necessary to perform ablution every time the container connected to the abdomen and filled with urine is emptied?

There is no relation between the invalidation of ablution (wudu') and the emptying of impurities from a container attached to the body, as removing impurity from clothing does not invalidate ablution. However, the exit of impurities from the body into the bag does invalidate ablution if it is intermittent and one finds an opportunity to pray during its cessation. But if it is continuous, it does not invalidate ablution, and prayer is valid with it, like a perpetual impurity. Nevertheless, one must perform ablution for each prayer after its time has begun.