Self-adjusting pressure relief support system and methodology

Details Self-adjusting pressure relief support system and methodology Self-adjusting pressure relief support system and methodology

A - Human Necessities

47

C

A47C 27/10 (2006.01) A47C 27/08 (2006.01) A61G 5/10 (2006.01)

Patent

CA 2191735

A pressure relief support system (10) utilizes a self-adjusting approach to maintaining generally constant pressure in fluid support bladders (70-76). A constant force, such as from a constant force linen spring (106, 108) or from a counterweight system (238), is applied directed to a fluid support bladder (182) or to a reservoir in fluid communication with such bladder. Plural self-adjusting arrangements tray be provided in a single device for fabricating a support body with sectionalized support. Such arrangements may be incorporated into mattress support systems (68) or into seating arrangements (538) or other alternative uses. By appropriately selecting system components, such as the amount of the constant force applied, the original volume of fluid to which the force is applied, and the reservoir size, pressure dispersion for a patient or supported object of any type may be controlled at a predetermined generally constant point.

Système pressurisé de soulagement et de soutien d'un patient utilisant un moyen autoréglable pour maintenir dans une vessie (70-76) remplie de fluide une pression sensiblement constante. Une force constante telle que celle d'un ressort linéaire à force constante (106, 108) ou d'un système de contrepoids (238) est appliquée directement sur la vessie (182) ou sur un réservoir de fluide en communication avec elle. Plusieurs dispositifs autoréglables peuvent être réunis dans un même appareil lorsqu'il s'agit de systèmes à plusieurs compartiments. Ces dispositifs peuvent être intégrés à des sommiers (68) de matelas ou à des sièges (538) ou à d'autres équipements. Un choix judicieux des paramètres du système tels que l'intensité de la force constante appliquée, le volume original de fluide, la taille du réservoir, permet de maintenir la pression appliquée au patient ou à tout autre objet, à un niveau donné, sensiblement constant.

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