Steady the hemostat in hand, bend the tip further in, and probe into the incision to separate and open the "flesh." In fact, this is conducting blunt dissection without using sharp instruments, which can avoid injuring the body's tissues as much as possible.
The bent tip moves like a mine clearance soldier, separating the tissues while probing. When the tip conveys a sense of breakthrough to the doctor's hand, it indicates that the instrument has penetrated various obstacles and reached the pleural cavity. The cavity is a space with fewer flesh obstructions, hence the feeling of breakthrough.
Once the cavity is opened, the gas and exudate inside begin to seep out through the incision.
Everyone watching at this step was on edge: make sure not to puncture the wrong area or cause a massive hemorrhage.
