Wound dressing and method for controlling severe,...

A - Human Necessities – 61 – L

Patent

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Details

A61L 15/22 (2006.01) A61L 15/28 (2006.01) A61L 15/44 (2006.01) A61F 13/00 (2006.01)

Patent

CA 2548525

This invention is directed to advanced hemorrhage control wound dressings, and methods of using and producing same. The subject wound dressing is constructed from a non-mammalian material for control of severe bleeding. The wound dressing for controlling severe bleeding is formed of a biomaterial comprising chitosan, a hydrophilic polymer, a polyacrylic polymer or a combination thereof. The kind of severe, life-threatening bleeding contemplated by this invention is typically of the type not capable of being stanched when a conventional gauze wound dressing is applied with conventional pressure to the subject wound. The wound dressing being capable of substantially stanching the flow of the severe life-threatening bleeding from the wound by adhering to the wound site, to seal the wound, to accelerate blood clot formation at the wound site, to reinforce clot formation at the wound site and prevent bleed out from the wound site, and to substantially prohibit the flow of blood out of the wound site.

La présente invention a trait à des pansements de plaies d'hémorragie avancée, et leurs procédés d'utilisation et de fabrication. Le pansement de plaies de l'invention est réalisé à partir d'une matériau non mammalien pour le contrôle de saignement sévère. Le pansement pour le contrôle de saignement sévère est constitué d'un biomatériau comportant du chitosane, un polymère hydrophile, un polymère polyacrylique ou une combinaison de ceux-ci. Le type de saignement sévère constituant un danger de mort envisagé par la présente invention est typiquement du type inapte à être étanché lors de l'application d'un pansement de gaze classique à une pression standard à la plaie concernée. Le pansement de plaies est capable d'étancher sensiblement l'écoulement de saignement sévère constituant un danger de mort à partir d'une plaie par adhésion au site de la plaie, pour l'obturation la plaie, l'accélération de formation de caillots de sang hors du site de la plaie, le renforcement de formation de caillots de sang au niveau du site de plaie, et l'inhibition sensible de l'écoulement de sang hors du site de la plaie.

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