A - Human Necessities – 61 – G
Patent
A - Human Necessities
61
G
A61G 5/10 (2006.01)
Patent
CA 2531747
A support contour of a cushion, such as a wheelchair cushion, defines relief areas at locations adjacent to skin covering the ischial tuberosities, the greater trochanters and the coccyx and sacrum of a person sitting on the support contour. Support areas of the support contour transfer force into the pelvic area adjacent to skin covering tissue masses on opposite lateral sides of the posterior buttocks and beneath the proximal thighs of the person. Risks of pressure ulcers from pressure and shear forces on bony prominences is reduced while providing support at the broader areas without bony prominences in such a manner to encourage postural alignment. A support member attached to a rear corner of the cushion is retained to resist deformation of the support contour from contact with the person and to adjust the support contour for better support of the pelvic area.
L'invention porte sur un coussin en relief par exemple de chaise roulante présentant des zones en creux au voisinage de la peau recouvrant les tubérosités de l'ischion, le grand trochanter, le coccyx et le sacrum de l'occupant de la chaise. Des zones d'appui transfèrent les forces sur la zone pelvienne voisine de la peau recouvrant les masses de tissus situées sur les côtés du postérieur et sous la partie proximale des cuisses. On réduit ainsi les risques d'escarres dus à la pression et aux forces de cisaillement sur les protubérances osseuses tout en augmentant la pression sur des surfaces plus importantes sans protubérances osseuses et en favorisant une bonne posture naturelle. Un support fixé au coin arrière du coussin est maintenu en place pour résister à la déformation du coussin résultant du contact avec l'occupant et permettre d'ajuster le coussin pour mieux soutenir la zone pelvienne.
Bieganek Joseph S.
Hetzel Thomas R.
Maurus Steve
Pierce Aaron D.
Aspen Seating Llc
Moffat & Co.
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