Low profile gastrostomy device with dome

A - Human Necessities – 61 – M

Patent

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Details

A61M 39/02 (2006.01) A61J 15/00 (2006.01) A61M 25/02 (2006.01)

Patent

CA 2143646

A gastrostomy device (30) for easier insertion into an established stoma is provided with an apertured dome (34) connected at its bottom wall to a tubular shaft (31), wherein the dome is particularly characterized by having the sidewall (38) thinned from apex to bottom wall whereby the dome, when elongated with an obturator, stretches smoothly and readily to very close to the diameter of the tubular shaft. The device is ordinarily provided with a one-way valve (42) mounted in the dome as well as with a retention flange (32) at the outer end of the tubular shaft. Preferably the one-way valve is a cross-slit duckbill valve of novel design.

L'invention concerne un dispositif (30) plus facile à insérer dans une stomie existante avec un dôme ouvert (34) connecté par sa paroi inférieure à un arbre tubulaire (31), où le dôme est en particulier caractérisé par le fait d'avoir une paroi latérale (38) qui s'amincit depuis le sommet jusqu'à la paroi du fond. Ceci permet au dôme, lorsqu'il est étiré avec un obturateur, de s'allonger progressivement et facilement jusqu'à avoir un diamètre très proche de celui de l'arbre tubulaire. Le dispositif est habituellement pourvu d'une valve de non-retour (42) montée dans le dôme ainsi que d'une bride de retenue (32) à l'extrémité externe de l'arbre tubulaire. De préférence, la valve de non-retour est une valve en forme de bec de canard à fente transversale d'une conception nouvelle.

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