Methods and apparatus for delivering ocular implants into...

A - Human Necessities – 61 – F

Patent

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A61F 9/007 (2006.01)

Patent

CA 2745884

A cannula for an ocular implant delivery system. In some embodiments, the cannula includes a tubular member having a curved portion, a distal opening surrounded by a distal opening surface, and a distal tip, the distal tip being adapted to be inserted into an anterior chamber of a human subject's eye, through trabecular meshwork and into Schlemm's canal of the eye, a proximal portion of the tubular member being adapted to extend from a location exterior to the eye when the distal tip is in Schlemm's canal of the eye, the cannula being further adapted to cooperate with an advancement mechanism to advance an ocular implant through the tubular member toward and through the distal opening into Schlemm's canal of the eye when the distal tip is disposed in Schlemm's canal. The invention also includes a method of deploying an ocular implant into Schlemm's canal of a hu-man eye.

L'invention concerne une canule d'un système de placement d'implants oculaires. Dans certains modes de réalisation, la canule comprend un élément tubulaire qui présente une partie incurvée, une ouverture distale entourée par une surface d'ouverture distale et une pointe distale, la pointe distale étant adaptée pour être insérée dans la chambre antérieure de l'oeil d'un sujet humain par un réseau trabéculaire et dans le canal de Schlemm de l'oeil, une partie proximale de l'élément tubulaire étant adaptée de manière à s'étendre depuis un emplacement situé à l'extérieur de l'oeil lorsque la pointe distale est dans le canal de Schlemm de l'oeil, la canule étant en outre adaptée pour coopérer avec un mécanisme d'avancement qui fait avancer un implant oculaire dans l'élément tubulaire vers l'ouverture distale du canal de Schlemm de l'oeil lorsque la pointe distale est disposée dans le canal de Schlemm. L'invention concerne également un procédé de déploiement d'un implant oculaire dans le canal de Schlemm de l'oeil humain.

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