Rotatable iol insertion apparatus and method for using same

A - Human Necessities – 61 – F

Patent

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Details

A61F 2/16 (2006.01)

Patent

CA 2389461

An apparatus (10) for inserting a folded intraocular lens (42) through an incision (112) into an eye (110) comprising a tube (24) defining a hollow passage, the tube (24) having an ejection port through which said intraocular lens (42) is passed from the hollow passage into an eye (110), an injector rod (130) longitudinally movable within the hollow passage of the tube (24), the injector rod (30) having a distal segment (94) adapted to contact the folded intraocular lens (42) within the hollow passage of the tube (24) to urge the folded intraocular lens (42) distally through the hollow passage, a housing including a distal portion (14) adapted to hold the tube (24), and a proximal portion (12) coupled to the distal portion (14), and a rotation assembly located relative to the distal portion (14) so that the distal portion (14) is axially rotated relative to the proximal portion (12) as the injector rod (30) is moved distally through the tube (24).

La présente invention concerne un appareil (10) servant à insérer une lentille intraoculaire pliée (42) dans un oeil (110) par une incision (112). Cet appareil comprend un tube (24) définissant un passage creux. Ce tube (24) comporte un orifice d'éjection par lequel la lentille intraoculaire (42) passe du passage creux à l'oeil (110) et une tige d'injection (130) mobile longitudinalement à l'intérieur du passage creux du tube (24). Cette tige d'injection (130) définit un segment distal (94) conçu pour entrer en contact avec la lentille intraoculaire pliée (42) à l'intérieur du passage creux du tube (24) de façon à la forcer distalement à passer par le passage creux. L'appareil comprend ainsi, d'une part un logement dont la partie distale (14) est conçue pour tenir le tube (24) et une partie proximale (12) couplée à la partie distale (14), et d'autre part un ensemble de rotation situé par rapport à la partie distale (14) de façon que la partie distale soit capable de rotation axiale par rapport à la partie proximale (12) lorsque la tige d'injection (30) se déplace distalement au travers du tube (24).

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