| 摘要 |
PCT No. PCT/GB95/00155 Sec. 371 Date Jul. 10, 1996 Sec. 102(e) Date Jul. 10, 1996 PCT Filed Jan. 26, 1995 PCT Pub. No. WO95/20897 PCT Pub. Date Aug. 10, 1995A backrest device having a supporting surface presenting two elongate continuous or discontinuous protuberances which extend alongside one another and are arranged to engage the back of a person, resting in use against the supporting surface, on each side of the spine, with a channel between the protuberances to accommodate the bony part of the spine with substantially no pressure on the bony part of the spine.
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