Lightweight and cost effective, this apparatus employs Expanding Ellipsoidal Decompression [EED].  Compressed low back joints and discs are simultaneously decompressed and aligned in a curved figuration.  MRI studies under EED via Posture Pump have concluded that this unique patended action seperates the joints at the anterior and posterior aspect of the discs in a ratio coinciding with their natural wedged spacing, allowing disc protrusions to be drawn into the disc proper.  Continuous expansion and contraction of ellipsoidal air cells is employed to create alternating hydration and milking of the intervertebral discs.  Longer expansion periods are employed for curve restoration.  EED does not remove the normal curved shape from the spine as in linear traction and is therefore not harmful to the natural spinal curves.