A<unk> , is a patient handling device used primarily in pre-hospital trauma care. It is designed to provide rigid support during movement of a person with suspected<unk>  or limb injuries. They are most commonly used by ambulance staff, as well as lifeguards and ski patrollers. Historically, backboards were also used in an attempt to "improve the posture" of young people, especially girls. Due to lack of evidence to support long-term use, the practice of keeping people on long<unk> s for prolonged periods of time is decreasing.
Spinal board
Bone collar
Baffle 
Cervical collar
Bibic
Gait belt
Casal collar
Spinal adjustment