Expanding cannula

Details Expanding cannula Expanding cannula

A - Human Necessities

61

B

A61B 17/34 (2006.01) A61B 17/94 (2006.01)

Patent

CA 2665482

An elongated cannula with an inner tube that is designed to cooperate with a corresponding outer tube. The cannula includes a cam mechanism/ a plurality of flexible members designed to expand and deploy when the inner and outer tubes move relative to each other, and a pressure ring disposed on the outer tube. The inner and outer tubes are slidably moveable relative to each other in at least one direction.

La présente invention concerne une canule allongée pourvue d'un tube interne qui est conçu pour coopérer avec un tube externe correspondant. La canule comprend un mécanisme à came/une pluralité d'éléments flexibles conçus pour s'étendre et se déployer lorsque les tubes interne et externe se déplacent l'un par rapport à l'autre, et un anneau de pression installé sur le tube externe. Les tubes interne et externe peuvent glisser l'un par rapport à l'autre suivant au moins une direction.

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