RU2369363C1 - Method of temporary hermetisation of corneal wound - Google Patents

Abstract

FIELD: medicine.

SUBSTANCE: microsurgical needle is stuck into two corneal wound lips. The needle is not extracted and threat is not pulled through. The presence of the needle in the wound shall not impede the final hermetisation of the wound.

EFFECT: method enables to maintain anterior chamber volume, decrease operational implications; it is available for practical use and does not require any additional material costs.

4 dwg

Description

The invention relates to medicine and can be used in ophthalmic surgery to temporarily seal a corneal wound while maintaining the volume of the anterior chamber of the eyeball.

There is a method of temporarily sealing a corneal wound as applying a knotted suture [1] (Fig. 1), which consists in holding a microsurgical needle through two lips of a corneal wound, pulling a thread, forming a knot; known device "surgical brace", designed for continuous continuous sealed seams on organs and tissues, represented by a rod with pointed ends in the form of spring coils [2].

For reasons that impede the achievement of the technical result and the use of the known method adopted for the prototype, there are the following disadvantages in the known method.

1. According to the method [1], it is necessary to carry out sequential actions associated with changing the tool, which increases the time to achieve the result. And at the end of the operation, another change of tools is required to remove the seam.

2. According to the method [2], the "surgical brace" is not used in microsurgery to seal a corneal wound, not only according to the claimed method for continuous sealing of a wound, but even more so for a temporary one, due to the invasiveness of the method, as applied to a corneal wound.

The objective of the invention is to preserve the volume of the anterior chamber of the eye during temporary sealing of the corneal wound during cataract extraction, implantation of IOLs, penetrating wounds of the cornea, to reduce trauma to the posterior surface of the cornea (corneal endothelium), to save viscoelastics, to improve the evacuation of the lens masses, iridoplasty, reducing surgical complications.

This is achieved by the fact that in the method for temporarily sealing the corneal wound according to the method [1], the microsurgical needle is inserted (inserted) through the two lips of the corneal wound without removing the needle and then pulling the thread (Fig. 2, photo 1, photo 2).

The cornea is a dense elastic spherical substance. The microsurgical needle is available in the form of a thin (diameter 0.15-0.2 mm) steel, bent around a circle (4 / 8-3 / 8 circle) with a pointed end, a round (atraumatic) rod.

According to the proposed method (figure 2), the center of the sphere of the cornea and the center of the circle of the needle lie on opposite sides of the line of intersection of the circles. The generated moments of force are enough to maintain the volume of the anterior chamber of the eye during surgical procedures in the cavity of the eye. Finding a needle in the wound does not prevent the final sealing of the corneal wound - the application of a continuously returnable suture. The needle channel can also be used for threading, which does not increase trauma to corneal tissue.

The invention is illustrated by drawings.

In figure 1, according to the method [1], the needle is passed through two lips of the corneal wound, the thread is pulled, a knot is formed, at the end it is necessary to remove the knot. A sequential change of tools is required: a needle holder and corneal tweezers, two tweezers for tying, tweezers for removing the suture and a microsurgical blade.

Figure 2 according to the claimed method, the needle is pierced through two lips of the corneal wound. Necessary tools for manipulation: needle holder and corneal tweezers.

Photo 1. Stage of extracapsular cataract extraction, corneal incision. Preservation of the volume of the anterior chamber of the eye after the evacuation of the lens masses.

Photo 2. Stage of extracapsular cataract extraction. Preservation of the anterior chamber volume upon insertion (implantation) of an intraocular lens (artificial lens of the eye).

In this way, temporary sealing of the corneal wound is achieved while maintaining the volume of the anterior chamber of the eye, reducing surgical complications. The method is available in practical use, does not require additional material costs.

Bibliography

1.M.L. Krasnov, B.C. Belyaev. Guide to eye surgery. - M .: Medicine, 1988, p. 274, 275, 286, 287, 552, 553.

2. RU 94019825 A1, 1994.05.27.

Claims (1)

A method for temporarily sealing a corneal wound, comprising injecting a microsurgical needle into two lips of a wound without removing the needle and pulling the thread.

Images