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Circular thermal capsulotomy tool and system

A lens capsule and incision technique, applied in the field of cataract surgery, can solve problems such as tool damage

Active Publication Date: 2014-04-16
VALENS ASSOC INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the situation where the tool creates damage in the eye was not addressed in the inventor's previous application

Method used

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  • Circular thermal capsulotomy tool and system
  • Circular thermal capsulotomy tool and system
  • Circular thermal capsulotomy tool and system

Examples

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Embodiment Construction

[0084] The present invention discloses a capsulotomy tool having a retractable cautery ring, also referred to as a cautery element. After the tool is inserted through the capsular incision, the cautery element is fully opened to deploy a fully circular cautery, which is then heated to cauterize the lens. This perfectly circular cautery therefore does not require tearing with forceps, which is potentially dangerous and difficult to perform.

[0085] In the present invention, the heating is confined to the cauterizing element, so there is no risk of burning inappropriate areas of the eye. The retractable nature of the cauterization element allows it to be inserted through a small capsular incision while providing cauterization of the lens at diameters larger than the diameter of the small capsular incision.

[0086] Figure 1-6 A preferred embodiment of a capsulotomy tool 10 is shown, constructed and operative in accordance with the principles of the present invention.

[008...

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PUM

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Abstract

A system and tool for performing a capsulotomy procedure. The system includes a capsulotomy and movement control unit providing electrical current and movement control, and a capsulotomy tool, and an extendable-retractable burning element coupled to the tool, and a slidable shaping element. A capsulotomy and movement control unit provides electrical current to the burning element and movement control for extending and retracting the burning element. When the burning element is in a flattened, retracted configuration, the tip of the tool can be inserted through a relatively small corneal incision. Then, the burning element is opened to a full circular, extended configuration, by pressing the shaping element against both joints of the bands, allowing a capsulotomy by applying an electrical pulse to the burning element.

Description

technical field [0001] The present invention relates to the field of cataract surgery. More specifically, the present invention relates to a system and tool for performing a capsulotomy. Background technique [0002] To date, over one million patients per year in the United States undergo cataract surgery in which the anterior lens capsule must be opened to gain access to the lens nucleus and allow removal of degenerated cortical material. This requires the creation of a relatively large circular opening in the lens capsule in order to gain access to the interior of the lens and to remove certain substances from the interior. The creation of this opening is called a capsulotomy. It is important that the opening has smooth edges and does not tear easily so that the lens contents can be easily removed through the opening. The diameter of the lens opening is typically on the order of 4-7 millimeters, however this size can vary. [0003] Currently, two techniques for anterio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B18/18
CPCA61F2009/00889A61B2018/00196A61F9/00754A61B18/082A61B2017/00973
Inventor J·本-纽恩A·勒雷
Owner VALENS ASSOC INC
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