An instrument called a trocar makes a puncture in the abdominal wall.

一种叫作套管针的器械会在腹壁上扎一个小孔。

《柯林斯英汉双解大词典》

Hernias can develop at these or other areas due to heavy strain on the abdominal wall, aging, injury, an old incision or a weakness present from birth.

由于年老、受伤、旧的手术切口、或者先天的皮肤薄弱，腹壁在压力下会从薄弱的地方(或其它地方)产生疝气。任何年龄的人都可以患有疝气。

youdao

The more traditional surgery requires a 5- to 6-inch incision through the abdominal wall and generally is followed by two or three days of hospitalization.

而传统的术式，不仅要求在肚子上切一个5-6英寸的切口，还会使捐献者不得不在医院里呆上两三天。

youdao

"When you cut a patient that is overweight, you're much more prone to infections of the abdominal wall, " Horgan said.

CNN: Use of natural openings may ease weight-loss surgery

He only succeeds in driving it deep into her abdominal wall.

CNN: Books - Excerpt: 'Flint'

With inflatable implants, doctors put cylinders inside the penis, a pump in the scrotum, and a fluid reserve inside either the scrotum or the abdominal wall.

CNN: 5 questions to ask before having penis surgery