| 摘要 |
Seat provided with a rear support device (2) at a height relative to the seating of the seat such that it can come into contact with the pelvis at the level of the sacroiliac joint (8) in order to stabilise this joint in an upright position. This device essentially comprises two lateral support zones (3) for the iliac bones under the posterior superior iliac spines and a middle zone (4) set back for the sacrum. It can be fixed to the rest of the seat at the suitable height. Adjustment systems are also provided in order to adapt this device to the individual forms and sizes of the pelvis. <IMAGE>
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