Cataract surgery devices and methods for using same

Details Cataract surgery devices and methods for using same Cataract surgery devices and methods for using same

A - Human Necessities

61

B

A61B 18/02 (2006.01) A61F 9/007 (2006.01) A61B 17/00 (2006.01) A61B 18/00 (2006.01) A61B 19/00 (2006.01)

Patent

CA 2410552

There are disclosed methods and apparatus for surgical removal of encapsulated tissue, and in particular removal of cataracts from lens capsules. These methods involve accessing the tissue in the capsule and maintaining control on the capsule, by gripping the capsule with an apparatus, a portion of which has been cooled, this cooling providing chilling to the apparatus portion and capsule, such that the apparatus portion adheres to the capsule by freezing. The apparatus is also heated, to limit any backwards conduction of the cooling, toward the remainder of the apparatus, with this heating keeping the apparatus at temperatures within a biocompatible range.

La présente invention concerne des procédés et un appareil permettant l'ablation chirurgicale de tissu encapsulé, et notamment l'ablation de cataractes dans des capsules de cristallin. Ces procédés font intervenir l'accès au tissu dans la capsule et le maintien du contrôle de la capsule, grâce au maintien de la capsule dans un appareil dont une partie à été refroidie, ce refroidissement permettant à ladite partie de l'appareil et à la capsule d'être toutes deux refroidies de sorte que ladite partie de l'appareil adhère à la capsule grâce au phénomène de gel. L'appareil subit également un chauffage permettant de limiter la conduction arrière du refroidissement en direction du reste de l'appareil, le chauffage permettant de maintenir l'appareil à des températures biocompatibles.

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