The Varilite Meridian Cushion is designed with dual chambers for optimal skin protection, positioning, pressure distribution, independent positioning of the pelvis and thighs, and also for sacral sitting prevention. The rear chamber allows maximum immersion of the pelvis for better pressure distribution; while the front chamber allows maximum loading of the thighs which reduces pressure on the ITs.
The Meridian’s dual-chambered design promotes a neutral pelvis position, especially important for clients prone to extensor tone or thrusting. The thigh and pelvic chambers form a pre-ischial ridge which prevents the ITs from sliding forward, preventing a posterior pelvic tilt and sacral sitting. Releasing more air from the pelvic chamber than the thigh chamber provides added postural support by creating dump or squeeze that “holds” the client in place.
Therapists recommend the Meridian for individuals with motor and neurological dysfunction due to spinal-cord injury, stroke, multiple sclerosis, cerebral palsy, and traumatic brain injury. Therapists value the integral pre-ischial ridge and wedge effect created by the Meridian’s dual chambers.
Functional areas of the Meridian cushion are created by three types of foam: soft foam for the decubitus-sensitive area of the ITs; medium foam for the thigh trough, pelvic bucketing and a pre-ischial bar; and firm foam for the perimeter and the medial thigh separator. Bonding Meridian foam to coated fabric makes the cushion hold air. A standard valve releases air to immerse the user in the foam, the foam conforms to the user, and the user’s weight is distributed over the surface of the cushion.