Portable negative pressure wound therapy device

A - Human Necessities – 61 – M

Patent

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Details

A61M 27/00 (2006.01)

Patent

CA 2729308

A portable NPWT system includes a dressing assembly for positioning over a wound to apply a negative pressure to the wound and a canister assembly. The canister assembly includes a control unit having a vacuum source and a controller and a collection canister in communication with the dressing assembly operable to receive fluid from the wound. The collection canister has ports to introduce a vacuum from the vacuum source into the collection canister. A ball float is provided to substantially close the suction port in response to one of collection of a predetermined volume of exudate in the collection canister, tilting of the collection canister beyond a predetermined angle of orientation or inversion of the collection canister.

L'invention porte sur un système portable de thérapie de plaies à pression négative (NPWT) qui comprend un ensemble de pansement destiné à un positionnement sur une plaie de façon à appliquer une pression négative à la plaie et un ensemble cartouche. L'ensemble cartouche comprend une unité de commande comportant une source de vide et un dispositif de commande comportant une cartouche de collecte en communication avec l'ensemble de pansement, actionnable pour recevoir un fluide provenant de la plaie. La cartouche de collecte comporte des orifices destinés à introduire un vide à partir de la source de vide à l'intérieur de la cartouche de collecte. Un flotteur sphérique est disposé de façon à fermer sensiblement l'orifice d'aspiration en réponse à l'un parmi la collecte d'un volume prédéterminé d'exsudat dans la cartouche de collecte, l'inclinaison de la cartouche de collecte au-delà d'un angle prédéterminé d'orientation ou l'inversion de la cartouche de collecte.

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