RU53146U1 - TOOL FOR EXTRACTION OF THE CRYSTAL CORE - Google Patents

Abstract

The utility model relates to medicine, namely to ophthalmology, and is intended for operations regarding cataract extraction, of which the lens nucleus is an integral part. In the tool for extraction of the lens nucleus, including the handle and the flat working part with a curved pointed end, the flat working part and the flat handle are in different planes located at an angle to each other, and the pointed end of the flat working part is curved in the form of a U-shaped pointed a hook bent parallel to the working part so that the plane of the U-shaped pointed hook lies in the plane of the working part. The plane of the working part is located relative to the plane of the handle, preferably at an angle of 10-20 °. The tool provides the optimal nature of manipulations on the extraction of the lens nucleus with a reliable grip and easy removal of the lens nucleus from the capsule. Reliable capture of the nucleus provides a reduction in the deformation of tissues adjacent to the lens, and a simplification of the procedure. Accordingly, the duration of the operation is reduced and the risk of damage and / or rupture of the capsule is reduced. The tool can be made, for example, on the basis of a spatula of the eye microsurgical or spatula to remove the membrane.

Description

The utility model relates to medicine, namely to ophthalmology, and is intended for operations regarding cataract extraction, of which the lens nucleus is an integral part.

During operations using the extracapsular method, the eye microsurgical spatulas No. 1 and No. 2 cat. No. 9434221025 (Industry catalog "Devices and Automation Tools. Medical Technology. Medical Instruments" - M: Informpribor, 1989, p. 51), through which the lens core is extruded through the surrounding tissue.

In case of difficulty in this manipulation, a Sato microsurgical knife is additionally used (Product catalog “Experimental and Technical Production“ Eye Microsurgery ”- M:“ Fedorov ”, 2003, p. 21 - prototype), intended for applying through cuts to the cornea.

The Sato knife has a sharply curved - at an angle of 45 ° - flat cutting working part with a pointed end. The pointed end of the knife is inserted inside the anterior capsule of the lens. By acting on the lens nucleus with oscillatory movements with simultaneous pressure on it with an eye spatula, the surgeon removes the lens nucleus from the capsule.

The prototype device is not effective enough, as it does not provide reliable capture of the lens nucleus; when removing the nucleus of the lens using a Sato knife, deformations are located near the located tissues, which leads to an additional pain syndrome; there is a great risk of damage and even rupture of the lens capsule.

The use of a prototype device requires the development of sustainable skills and causes difficulties for surgeons with little experience.

The problem and the expected technical result solved by the proposed utility model are to increase the efficiency of the device for extracting the lens nucleus by providing reliable capture of the lens nucleus while simplifying the technique and reducing the duration of the operation. The deformation of tissues adjacent to the lens is reduced, and the risk of damage and / or rupture of the lens capsule is reduced.

The problem is solved in that in the tool for extraction of the lens nucleus, including the handle and the flat working part with a curved pointed end, the flat working part and the flat handle are in different planes located at an angle to each other, and the pointed end of the flat working part is curved in the form of a U-shaped pointed hook bent parallel to the working part so that the plane of the U-shaped pointed hook lies in the plane of the working part.

The plane of the working part is located relative to the plane of the handle, preferably at an angle of 10-20 °.

The proposed tool is presented in figure 1

The inventive combination of features of the tool provides the optimal nature of the manipulation of the extraction of the lens nucleus with a reliable grip and easy removal of the lens nucleus from the capsule. No additional traumatic manipulations, for example, the use of oscillatory movements, as when using a prototype device, are excluded. The absence of a cutting surface (which the working part of the prototype has) eliminates damage to the lens capsule.

The tool is used as follows. After opening the front lens capsule, the hook of the inventive tool is inserted into it, with which the lens core is securely engaged and, with light pressure, the spatula is removed from the capsule.

Reliable capture of the nucleus reduces the deformation of tissues adjacent to the lens, and simplifies the method of operation using the inventive tool relative to the prototype. Accordingly, the duration of the operation is reduced and the risk of damage and / or rupture of the capsule is reduced.

The tool can be made, for example, on the basis of a spatula of the eye microsurgical or spatula to remove the membrane.

Claims (2)

1. A tool for extraction of the lens nucleus, comprising a handle and a flat working part with a curved pointed end, characterized in that the flat working part and the flat handle are in different planes located at an angle to each other, and the pointed end of the flat working part is curved in the form A U-shaped pointed hook bent parallel to the working part so that the plane of the U-shaped pointed hook lies in the plane of the working part. 2. The tool for extraction of the lens nucleus according to claim 1, characterized in that the plane of the working part is located relative to the plane of the handle at an angle of 10-20 °.