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Ophthalmic surgical instruments and snares thereof

a technology of ophthalmic surgery and snares, which is applied in the field of ophthalmic surgery instruments, can solve the problems of trauma to adjacent delicate eye structures, the shift of the distal portion of the lens in an upward direction,

Active Publication Date: 2021-06-03
MACKOOL RICHARD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during segmentation by the surgical instrument, the distal portion of the lens may be caused to shift undesirably in an upward (i.e., anterior) direction.
Such movement may cause trauma to delicate adjacent eye structures such as the lens zonule, lens capsule or, corneal endothelium.

Method used

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  • Ophthalmic surgical instruments and snares thereof
  • Ophthalmic surgical instruments and snares thereof
  • Ophthalmic surgical instruments and snares thereof

Examples

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Embodiment Construction

[0057]Embodiments of the presently disclosed ophthalmic surgical instruments are described in detail with reference to the drawings, in which like reference numerals designate identical or corresponding elements in each of the several views. As used herein and as is traditional, the term “distal” will refer to that portion of the ophthalmic surgical instrument which is further from the user (i.e., closer to the eye) while the term “proximal” will refer to that portion of the ophthalmic surgical instrument which is closer to the user (i.e., further from the eye).

[0058]The present disclosure provides embodiments of an ophthalmic surgical instrument used to fragment cataractous lenticular tissue prior to its removal from a lens capsule. The ophthalmic surgical instrument includes a handle portion and a snare for enclosing and severing the lenticular tissue. The ophthalmic surgical instrument is constructed so that a distally-extending shaft thereof acts as the stabilization element. In...

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PUM

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Abstract

An ophthalmic surgical instrument includes an elongated shaft and a snare configured to transition between an expanded configuration, in which the snare is sized to encircle lenticular tissue, and a contracted configuration. The snare has a section configured to cooperate with a bottom surface of the elongated shaft to sever the lenticular tissue therebetween upon the snare transitioning toward the contracted configuration.

Description

BACKGROUNDTechnical Field[0001]The present disclosure relates to ophthalmic surgical instruments, and more particularly, to ophthalmic surgical instruments and methods that facilitate the fragmentation and removal of a lens from a lens capsule.Background of Related Art[0002]Cataract surgery and other surgical procedures that treat lenticular tissue, such as, for example, the intraocular lens, are performed by making a small incision in the edge of the cornea, which provides access to the anterior chamber and to the anterior surface of the lens capsule. Afterward, a generally circular incision called a capsulorhexis is made through the anterior surface of the lens capsule to provide surgical access to the lens. An ophthalmic surgical instrument may be inserted through the capsulorhexis and used to fragment the cataractous lens to facilitate its removal from the lens capsule. However, during segmentation by the surgical instrument, the distal portion of the lens may be caused to shift...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61F9/007
CPCA61F9/00754A61B2017/00424A61B17/32056A61F9/00763A61B34/30A61B2017/00539A61B2017/00544A61B2017/00867A61F9/00745A61B2090/306A61B2090/309
Inventor MACKOOL, RICHARDSMITH, CHRISTOPHER DEANBLAIN, MAXIME
Owner MACKOOL RICHARD