Disclosed herein is a clamp (100) attachable to a support rail (30) of a hospital bed, for example. The clamp includes a body (160), first and second arms (120, 140) coupled to the body, wherein the first and second arms are moveable towards and away from one another. The clamp further includes at least one seat clamp member (130) pivotably coupled to at least one of the first and second arms. The clamp is attached to the support rail when the at least one seat clamp member contacts the support rail and the first and second arms are in a clamped position.
