Variable positioning gaseous conduit orifice and method of use

A - Human Necessities – 61 – M

Patent

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Details

A61M 1/00 (2006.01) A61B 18/00 (2006.01) A61M 16/00 (2006.01) A61M 16/08 (2006.01) F16L 11/11 (2006.01)

Patent

CA 2187467

A selectively positionable fluid conduit for gas removal from or gas introduction to a specific environment is disclosed. The fluid conduit includes a tubular wand having an orifice at the distal end thereof. Unwanted gases are removed by suction force through the orifice. Desirable or therapeutic gases are introduced to a specific location through the orifice. The tubular wand is coupled to a malleable positioning tube. The malleable positioning tube can be manipulated into various configurations such that the positioning tube maintains the last chosen configuration. In one disclosed embodiment, the malleable positioning tube includes tubular bellows formed from a plurality of alternating large and small diameter rings joined by frusto-conical walls. In another embodiment, the malleable positioning tube includes a malleable wire associated with a semi-rigid tube. Interaction between the rings and the frusto-conical walls imparts malleable properties to the positioning tube. A flexible liner located within the malleable positioning tube can provide a smooth surface which eliminates whistling caused by gas flow through the tube. The malleable positioning tube is in gaseous communication with either a gas evacuator or to a pressurized gas source. In one disclosed embodiment, a flexible tube is used to connect the malleable positioning tube to a gas evacuator or gas source.

Conduit de fluide à position sélective pour l'extraction ou l'introduction d'un gaz par rapport à un environnement spécifique. Le conduit de fluide comprend un bras tubulaire avec orifice à son extrémité distale. Les gaz indésirables sont extraits par aspiration à travers l'orifice. Les gaz souhaitables ou thérapeutiques sont introduits dans un endroit particulier à travers l'orifice. Le bras tubulaire est raccordé à un tube de positionnement malléable. Le tube de positionnement malléable peut être manipulé dans diverses configurations de sorte que le tube de positionnement conserve la dernière configuration choisie. Dans une réalisation, le tube de positionnement malléable comprend un fil malléable associé à un tube semi-rigide. L'interaction entre les anneaux et les parois frusto coniques confère des propriétés malléables au tube de positionnement. Une doublure flexible située à l'intérieur du tube de positionnement malléable peut assurer une surface lisse qui élimine le sifflement causé par la circulation du gaz dans le tube. Le tube de positionnement malléable est en communication gazeuse soit avec une évacuation de gaz, soit avec source de gaz sous pression. Dans une autre réalisation, un tube flexible est utilisé pour raccorder le tube de positionnement malléable à un évacuateur de gaz ou à une source de gaz.

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