From Heroes Wiki
The Company implants a cerebral shunt into the brains of some of their evolved human prisoners.
After Eden McCain's death, Sylar is put through a series of tests by the Company. In order to examine his brain, a shunt is implanted into his skull.
After surprising Mr. Bennet, Sylar forcibly removes the shunt by ripping it out of his skull.
Angela places Peter in a Level 5 cell and puts a shunt in his head to incapacitate him.
Sylar forcefully removes the shunt from Peter's face. Later, Peter reinserts the shunt into Sylar's nose.
- A cerebral shunt is commonly used to treat patients with hydrocephalus, a condition where excess fluid under the skull creates pressure on the brain. The shunt helps to relieve pressure by draining the fluid. The exact purpose of the Company's shunt is unknown, though the shunt does seem to effective incapacitate the patient.
- In the commentary for The Fix, writer Natalie Chaidez said that the shunt was used to drain Sylar's brain fluid for testing purposes.
Sylar forcibly removes the shunt in his cell.
Peter has a shunt in his head.
Peter's shunt goes directly to his nose.