Re: CSF shunt for hydrocephalus, does a catheter actually pierce the brain?

And if so, where? I understand what the catheter does, why its inserted, so dont give me a long cut and paste from wikipedia. And i'll talk to my neurosurgeon tomorrow. But I was just wondering, does the catheter actually pierce the brain on its way to the ventricles, and if so, how do they know where to pierce the brain? I've had a shunt for 42 years, that's why I'm asking. I recently had my first revision in 30 years and I'm learning a lot.