Flexible automatic capsulorhexis device

An automatic, electrode-mounted technology used in the field of cataract surgery to address vitreous damage, rupture, and increased surgical length and complexity

Active Publication Date: 2011-12-07
ALCON INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The additional stress required to complete the operation with a small or misplaced capsular opening puts the eye at risk of rupture of the zon

Method used

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  • Flexible automatic capsulorhexis device
  • Flexible automatic capsulorhexis device
  • Flexible automatic capsulorhexis device

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Embodiment Construction

[0023] Various embodiments of the present invention provide devices and corresponding methods for performing capsulorhexis. In particular, the present invention relates to a surgical instrument, a flexible capsulorhexis electrode device, which can be positioned through a small incision in the anterior chamber of the eye to perform capsulorhexis or capsulotomy. This procedure facilitates phacoemulsification of cataract lenses and insertion of artificial intraocular lenses (IOLs).

[0024] Various methods and devices have been proposed for automating the capsulorhexis procedure. U.S. Patent Application Publication No. 2006 / 0100617, the entire contents of which are incorporated herein by reference, describes an "automatic capsularhexis" device comprising a circular flexible ring made of elastomeric or acrylic or thermoplastic material . Embedded in each of the various embodiments of the flexible ring is a resistive heating element or a pair of bipolar electrodes that are energi...

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Abstract

A capsulorhexis electrode device and a corresponding insertion tool are disclosed. A flexible capsulhexis electrode assembly comprising an elastomeric ring, first and second conductive traces disposed on a first face of the elastomeric ring and extending concentrically around the elastomeric ring, and first and second conductive Connector. First and second conductive connectors are electrically connected to the first and second traces, respectively, and are disposed at opposite positions across the elastomeric ring. The insertion tool includes first and second stretch rods having connectors for mating with the electrode assembly. One of the stretch rods translates relative to the other, thereby elongating the flexible electrode device for insertion through a small incision into the anterior chamber of the eye.

Description

technical field [0001] The present invention relates generally to the field of cataract surgery, and more particularly to methods and devices for performing capsulorhexis. Background technique [0002] One acceptable treatment for cataract treatment is surgical removal of the lens and replacement of the lens function with an artificial intraocular lens (IOL). In the United States, most cataractous lenses are removed through a surgical technique called phacoemulsification. Before the cataractous lens can be removed, an opening, or tear, must be made in the anterior capsule. During phacoemulsification, when the lens nucleus is emulsified, there is considerable tension on the incision edge of the anterior capsular tear. Therefore, continuous incisions or fissures (cracks) without "shards" are a critical step in a safe and effective phacoemulsification procedure. [0003] If the capsule is opened with multiple small capsular slits, the remaining small fragments can lead to ra...

Claims

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Application Information

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IPC IPC(8): A61B18/14A61F9/007
CPCA61B18/14A61F9/0079A61F9/00754
Inventor 佳光耀D・J・卡奥G・R・萨斯曼
Owner ALCON INC
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