Method and apparatus for supporting an object requiring...

A - Human Necessities – 47 – C

Patent

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Details

A47C 31/12 (2006.01) A47C 27/08 (2006.01) A47C 27/10 (2006.01) A61G 7/057 (2006.01)

Patent

CA 2319594

The invention concerns a support apparatus and its method. Said apparatus comprises a support device (12) to provide support to an element requiring support, in particular a patient's body (H), comprising at least a first inflatable chamber (14), means for sensing pressure level P1 in the first chamber (14); means (30) for controlling the means (20) correcting pressure level P1 in the first chamber (14) on the basis of characteristics of predetermined pressure levels, comprising first means for inflating (21)/deflating (22) the support device (12) chamber (14) at a variable pressure, including an predetermined initial pressure level. The invention is characterised in that it comprises at least one physical pressure sensor (50) including a second inflatable chamber (51), inflated at a predetermined initial pressure level P2, said sensor (50) being arranged so as to cause pressure level P2 in its second chamber (51) to be influenced by a change of pressure level in the first chamber (14); means (38) for comparing pressure level P1 in the first chamber (14) with pressure level P2 in the second chamber (51), said control means (30) eventually controlling the means (20) correcting the pressure level in the first chamber (14) when the variation in pressure is different from a predetermined set pressure level value or from a range of predetermined set pressure level value.

L'invention concerne un appareil de support et son procédé. Cet appareil comprend un dispositif de support (12) d'un élément à supporter, en particulier le corps d'un patient (H), comprenant au moins une première chambre (14) gonflable, des moyens (31) de détection de la pression P¿1? dans la première chambre (14); des moyens (30) de commande de moyens (20) de correction de la pression P¿1? dans la première chambre (14) en fonction des caractéristiques de pressions prédéterminées, comprenant des premiers moyens de gonflage (21)/dégonflage (22) de la chambre (14) du dispositif de support (12) à une pression variable, incluant une pression initiale prédéterminée, caractérisé en ce qu'il comprend au moins un capteur (50) physique de pression comprenant au moins une deuxième chambre (51) gonflable, gonflée à une pression initiale prédéterminée P¿2?, ledit capteur (50) étant disposé de manière à avoir la pression P¿2? de sa deuxième chambre (51) influencée par un changement de pression dans la première chambre (14); des moyens (38) de comparaison de la pression P¿1? dans la première chambre (14) avec la pression P¿2? dans la deuxième chambre (51), lesdits moyens de commande (30) commandant éventuellement les moyens (20) de correction de la pression dans la première chambre (14) lorsque l'écart de pression est différent d'une valeur de pression de consigne prédéterminée ou d'une plage de valeur de pression de consigne prédéterminée.

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