... transfers into and out of beds and chairs, and specialist mattresses and pressure-relieving seating, can reduce the likelihood of pressure sores and ulcers (which is a major cost to the NHS), and unnecessary ... per cent of the true cost of a suitable chair.13Design of NHS-provided wheelchairs continues to be a source of concern, according to a number of interviewees. The 2006 review of wheelchair services, ... type of wheelchair. The voucher reflects the value of the wheelchair originally recommended and the consumer pays any difference in cost. The wheelchair will be repaired and maintained free of...