Patient support surfaces

A - Human Necessities – 47 – C

Patent

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Details

A47C 27/08 (2006.01) A61G 7/057 (2006.01)

Patent

CA 2309751

Multiple varieties of patient support surfaces (10) are presented with a common modular assembly primarily including a perimeter chassis and integrated upper support element. Perimeter bolsters (14) provide relatively firmer support and facilitate safer transfers and better sitting at the edge of the bed. Pressure redistribution air cylinders (36, 38, 40, 42), turned either longitudinally or laterally, are captured by shaped, slotted inner bolsters (68, 70) and underside arches (88, 90, 92, 94) of an integral foam topper (24). Each foam topper (24) integrally incorporated may include a sloping heel pressure relief section for redistributing load to relatively more pressure-tolerant lower legs and calves. An external valving arrangement for a static non-powered embodiment permits practice of a "recharging" technique using an air pump (118) and self-calibrated valve (124), to return the air pressure in static air cylinders (36, 38, 40, 42) to their original manufactured specifications.

L'invention concerne toute une gamme de surfaces de support (10) pour patients pourvues d'un ensemble modulaire commun comprenant essentiellement un cadre périmétrique et un élément de support supérieur intégré. Des bourrelets périmétriques (14) assurent un support relativement plus ferme et permettent des transferts plus sûrs et une meilleure assise au bord du lit. Des cylindres pneumatiques (36, 38, 40, 42) de redistribution de la pression, orientés soit dans le sens longitudinal soit dans le sens latéral, sont piégés entre des bourrelets intérieurs (68, 70) rainurés et profilés ainsi que par les arcs inférieurs (88, 90, 92, 94) d'une<u> </u>garniture supérieure (24) en mousse formée d'une seule pièce. Chaque garniture supérieure (24) en mousse formée d'une seule pièce peut comprendre une section inclinée de soulagement de la pression au niveau des talons permettant une redistribution de la charge entre les pieds et mollets inférieurs, lesquels supportent<u> </u>relativement mieux la compression. Un système de valves externe destiné à un mode de réalisation statique non électrique permet de pratiquer la technique du "rechargement" au moyen d'une pompe à air (36, 38, 40, 42) et d'une valve auto-étalonnée (124) pour redonner aux cylindres pneumatiques (36, 38, 40, 42) la pression pneumatique de leurs spécifications de fabrication originales.

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