Individually-contoured seat cushion and shape capturing and...

Details Individually-contoured seat cushion and shape capturing and... Individually-contoured seat cushion and shape capturing and...

A - Human Necessities

61

B

A61B 5/107 (2006.01) A47C 7/02 (2006.01) A61G 5/10 (2006.01)

Patent

CA 2475638

A negative impression of an anatomical portion of a person is captured by forcing the anatomical portion into impression foam to collapse the impression foam into the negative impression. The impression foam has a crush characteristic of approximately constant resistance force over a relatively wide predetermined range of collapse distances. The negative impression is obtained by collapsing the impression foam within the range of constant-force collapse distances, thereby creating the negative impression under conditions which reflect an equally-loaded anatomical portion. A cushion support contour created from the equally-loaded negative impression is beneficial in more appropriately supporting the anatomical portion. The present invention is particularly useful in fabricating wheelchair seat cushions.

Une impression négative d'une partie anatomique d'une personne est saisie en forçant ladite partie anatomique sur une mousse d'impression, qui s'écrase et forme une impression négative. La mousse d'impression a une caractéristique d'écrasement d'une force de résistance à peu près constante sur une plage prédéterminer de distances d'écrasement relativement large. L'impression négative est obtenue en écrasant la mousse d'impression dans la plage des distances d'écrasement à force constante, ce qui crée ainsi les conditions d'impression négatives qui reflètent une partie anatomique dont les contraintes sont également réparties. Un contour de soutien du cossin créé à partie le l'impression négative à contraintes réparties également est avantageuse au-delà d'un soutien approprié de ladite partie anatomique. La présente invention est particulièrement utile pour la fabrication des coussins de sièges de fauteuil roulant.

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