This bed is three dimensional Lumbar Traction Bed, The traction force, traction time, traction mode,raising angle and swin- ging angle are all controlled by micro-computer. At clinical practise, longitudinal,angled and swing traction can be used separately or combinedly. When tracting longitudinally, it can carry on swinging traction and angled traction (when lying on back, it can carry on negative traction).Simultaneously it can over come the insufficience of single traction and fulfill 3-D traction Applicable to the treatment of cervical lumbar vertebra disease Traction. Like lumbar vertebra illness:lumbar disc projection, denaturation confusion, strain, dislocation & in-complete paraplegia & hemiplegia complicated symptoms (According to the disease status, it could take resupine or prostrate traction.)(Please use under the guidance of doctor)