Porous orthopedic casting material

A - Human Necessities – 61 – L

Patent

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Details

A61L 15/12 (2006.01) A61F 13/04 (2006.01) A61L 15/08 (2006.01) A61L 15/14 (2006.01)

Patent

CA 2180337

The present invention provides an article comprising a curable resin and a filler associated with the resin. The incorporation of fillers into the casting materials of the present invention adds substantially to the strength of the cured casting material as well as to the handling properties of the uncured casting tape or bandage. The incorporation of fillers into the casting materials of the present invention also imparts air and vapor porosity to the cured casting materials. If desired, articles of the present invention may also incorporate fibers (either individually, bundled, or in the form of a light-weight scrim) to provide increased cohesiveness to the uncured article. Extremely moldable casting tapes are also provided which comprise a highly-filled composite material coated on a light-weight scrim. The casting tapes of this embodiment handle like traditional plaster of Paris casts yet cure to a weight-bearing cast in less than one hour.

La présente invention concerne un article comprenant une résine durcissable et une charge associée à cette résine. L'incorporation de charges dans les matériaux de plâtrage de la présente invention renforce sensiblement la résistance du matériau de plâtrage durci ainsi que les propriétés de manipulation de la bande ou du bandage plâtré non durci. L'incorporation de charges dans les matériaux de plâtrage de cette invention confèrent également une porosité à l'air et à la vapeur aux matériaux de plâtrage durcis. Si on le souhaite, les articles de la présente invention peuvent également comporter des fibres (soit individuelles, soit en faisceaux, soit sous la forme d'une gaze légère) afin de renforcer la cohésion de l'article non durci. L'invention concerne également des bandes plâtrées très moulables qui comprennent un matériau composite à forte charge, appliqué sur une gaze légère. Les bandes plâtrées de ce mode de réalisation se manipulent comme les moulages traditionnels en plâtre de Paris, qui jusqu'à maintenant, durcissaient en moins d'une heure pour former un moulage portant.

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