Bi-manual phaco needle
First Claim
1. Apparatus for the removal of lens tissue, said apparatus comprising, in combination:
- a first needle for introducing an irrigation fluid into a lens capsule;
a second vibrated needle for inserting into said lens capsule and emulsifying lens tissue therein, the second needle including a lumen therethrough for aspiration of emulsified lens tissue and irrigation fluid from said lens capsule through a primary aspiration port defined by an end of said lumen; and
at least one secondary aspiration port disposed in the second needle, in a spaced apart relationship with said primary aspiration port, for aspirating fluid from the eye into said lumen.
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Accused Products
Abstract
Apparatus for the phacoemulsification of lens tissue includes a first needle for introducing irrigation fluid into a lens capsule and a second ultrasonically vibrated needle for inserting into the lens needle and emulsifying the lens tissue therein. The second needle includes a lumen therethrough for aspiration of emulsified lens tissue and irrigation fluid from the lens capsule through a primary aspiration port defined by an end of the lumen. At least one secondary aspiration port is disposed in the second needle is a spaced apart relationship with the primary aspiration port for introducing emulsified lens and irrigation fluid into the lumen.
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Citations
18 Claims
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1. Apparatus for the removal of lens tissue, said apparatus comprising, in combination:
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a first needle for introducing an irrigation fluid into a lens capsule;
a second vibrated needle for inserting into said lens capsule and emulsifying lens tissue therein, the second needle including a lumen therethrough for aspiration of emulsified lens tissue and irrigation fluid from said lens capsule through a primary aspiration port defined by an end of said lumen; and
at least one secondary aspiration port disposed in the second needle, in a spaced apart relationship with said primary aspiration port, for aspirating fluid from the eye into said lumen. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. Apparatus for the phacoemulsification of lens tissue, said apparatus comprising, in combination:
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a first needle for introducing an irrigation fluid into a lens capsule;
a second ultrasonically vibrated needle for inserting into said lens capsule and emulsifying lens tissue therein, the second needle including a lumen therethrough for aspiration of emulsified lens tissue and irrigation fluid from said lens capsule through a primary aspiration port defined by an end of said lumen; and
at least one secondary aspiration port disposed in the second needle, in a spaced apart relationship with said primary aspiration port, in order to maintain flow of emulsified lens and irrigation fluid through the second needle upon occlusion of said primary aspiration port to prevent overheating of the second needle. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification