A splint is a device used for holding a part of the body stable and motionless to prevent pain and further injury.
The purpose of a splint is to protect a wounded body part from further damage until you get medical help. It is important to check for good circulation after the injured body part has been immobilized.
Commercial splints are often used to immobilize a body part in the treatment of various disorders.
Splints can be used for many different injuries. Any time there is a broken bone, stabilizing the area is important.