Tissue removal device with adjustable fluid supply sleeve...

A - Human Necessities – 61 – B

Patent

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A61B 17/32 (2006.01) A61B 17/00 (2006.01) A61B 17/3207 (2006.01) A61B 17/34 (2006.01) A61F 9/007 (2006.01)

Patent

CA 2741002

A tissue cutting device that is especially suited for neurosurgical applications is disclosed and described. The device includes a handpiece and an outer cannula in which a reciprocating inner cannula is disposed. The inner cannula includes a hinge between a body section and a cutting section that allows the cutting section to pivot when the inner cannula reciprocates within the outer cannula. A tissue collector is also provided and is in fluid communication with the lumen of the inner cannula. A fluid supply sleeve is disposed about the outer cannula and is selectively positionable along the length of the outer cannula.

La présente invention concerne un dispositif dablation de tissu qui est particulièrement adapté pour des applications de neurochirurgie. Le dispositif comprend une pièce à main et une canule extérieure dans laquelle est disposée une canule intérieure animée dun mouvement de va-et-vient. La canule intérieure comprend une charnière entre une section de corps et une section de coupe qui permet que la section de coupe pivote lorsque la canule intérieure effectue un mouvement de va-et-vient avec la canule extérieure. Un collecteur de tissu est également fourni et se trouve en communication fluidique avec la lumière de la canule intérieure. Un manchon dalimentation en fluide est disposé autour de la canule extérieure et peut être sélectivement positionné le long de la canule extérieure.

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