Inflatable apparatus for accessing a body cavity and methods...

A - Human Necessities – 61 – M

Patent

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Details

A61M 29/00 (2006.01) A61B 17/00 (2006.01)

Patent

CA 2533491

Apparatus (10) is provided for accessing a body cavity comprising a tubular member (11) having a deflated configuration that facilitates viewing within the body cavity. The apparatus is formed by everting a length of material upon itself to form a tube having a single circumference seam at the distal end, and includes an inflation tube (13) that is sufficiently rigid to assist in inserting the tubular member (11) into a body cavity in the deflated insertion configuration. The tubular member further includes a pattern of staggered contact areas (22) that configured so as to avoid the creation of longitudinal features that preferentially bend when loaded, thereby ensuring that tubular member (11) provides a substantially circular central lumen (18).

L'invention concerne un appareil permettant d'accéder à une cavité corporelle et comprenant un élément tubulaire présentant une configuration d'introduction dégonflée et une configuration développée gonflée facilitant une visualisation à l'intérieur de la cavité corporelle. L'appareil est formé par repliement d'une longueur de matière sur elle-même pour former un tube présentant un joint de circonférence unique à l'extrémité distale et il comprend un tube de gonflage suffisamment rigide pour aider à l'introduction de l'élément tubulaire dans une cavité corporelle dans la configuration d'introduction dégonflée. L'élément tubulaire comprend également une configuration de zones de contact étagées configurées de manière à éviter la création de caractéristiques longitudinales se courbant de manière préférentielle sous une charge, assurant ainsi que l'élément tubulaire fournit une lumière centrale sensiblement circulaire.

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