Which device is used to immobilize injured extremities?

The splint is the device specifically designed to immobilize injured extremities, particularly in cases of fractures or soft tissue injuries. By applying a splint, the injured area is stabilized, which helps prevent the injury from worsening and alleviates pain. It keeps the affected limb in a fixed position, which is essential for healing and managing the injury appropriately until further medical assistance can be provided.

While other devices mentioned, such as slings and braces, serve important roles in supporting injuries, they do not provide the same level of immobilization that a splint does. A sling is primarily used to support and cradle an injured arm, allowing it to rest but not necessarily immobilizing it completely. A brace offers additional support and stabilization, often used for chronic conditions, but is typically not utilized in acute injury situations where immobilization is critical. The SWAT tourniquet is specifically designed for controlling bleeding from a limb and is not intended for immobilization purposes. Therefore, the splint stands out as the appropriate device for immobilizing injured extremities effectively.