Method and instrument for cataract surgery

The present invention relates generally to cataract surgery. More particularly, the present invention relates to a supracapsular method of cataract phacoemulsification and an instrument therefor. A method to provide an efficient, safe, and easy to use supracapsular method for removal of cataracts, w...

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Main Author Anthone, Kenneth D
Format Patent
LanguageEnglish
Published 02.11.2004
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Abstract The present invention relates generally to cataract surgery. More particularly, the present invention relates to a supracapsular method of cataract phacoemulsification and an instrument therefor. A method to provide an efficient, safe, and easy to use supracapsular method for removal of cataracts, wherein a groove is formed in the cataract nucleus, the nucleus is cracked along the groove into two halves and rotated approximately 90 degrees, force is applied to the proximal half to effect movement of the distal half into a stacked position relative to the proximal half, and the nucleus halves along with the remainder of the cataract are then emulsified and removed.In order to minimize the chances of trauma to the capsule while sweeping the lens capsule away from cataract portions as well as making a crack in the nucleus and for otherwise assisting in manipulation of nucleus portions, an instrument has a prongless cataract-engaging portion, preferably with a convex frontal edge.
AbstractList The present invention relates generally to cataract surgery. More particularly, the present invention relates to a supracapsular method of cataract phacoemulsification and an instrument therefor. A method to provide an efficient, safe, and easy to use supracapsular method for removal of cataracts, wherein a groove is formed in the cataract nucleus, the nucleus is cracked along the groove into two halves and rotated approximately 90 degrees, force is applied to the proximal half to effect movement of the distal half into a stacked position relative to the proximal half, and the nucleus halves along with the remainder of the cataract are then emulsified and removed.In order to minimize the chances of trauma to the capsule while sweeping the lens capsule away from cataract portions as well as making a crack in the nucleus and for otherwise assisting in manipulation of nucleus portions, an instrument has a prongless cataract-engaging portion, preferably with a convex frontal edge.
Author Anthone, Kenneth D
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References Gauly (2117312) 19380500
Zelman (5057098) 19911000
Zaleski (5993408) 19991100
Catalano (4579116) 19860400
Bechert, II (4676793) 19870600
Kamerling (5217459) 19930600
Kansas (5156607) 19921000
Imonti (5653724) 19970800
K. D. Anthone, "Surgeon: Crack-and-Stack Supracapsular Method is Safe," Ocular Surgery News, Oct. 1, 2001, vol. 18, No. 19, pub. by Slack Incorporated of Thorofare, NJ.
Steinert (5451230) 19950900
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