A sling is a device used to support and immobilize an injured part of the body (in particular, an injured shoulder, arm, or collarbone).
Prevention
Safety is the best way to avoid broken bones caused by falling. Some diseases make bones break more easily, so use caution when assisting a person with fragile bones. Avoid activities that strain the muscles or bones for long periods of time as these can cause weakness and falls. Also, use appropriate caution when walking on slippery or uneven surfaces.