From Halopedia, the Halo wiki
Magnetic splints are a piece of Covenant medical technology. They presumably use magnetic parts to keep broken bones from moving around too much.
Jiralhanae Chieftain Maccabeus had a magnetic splint affixed on his leg after he was severely injured by Staff Sergeant Avery Johnson and Staff Sergeant Nolan Byrne during the First Battle of Harvest.
List of appearances
- Halo: Contact Harvest (First appearance)
- ^ a b Halo: Contact Harvest, page 310