RU146981U1 - DEVICE FOR FIXING AN ANIMAL ANIMAL EYE IN THE OPHTHALM SURGICAL SIMULATOR - Google Patents

Abstract

A device for fixing the cadaver eye of an animal, characterized in that the device is made in the form of a vacuum head consisting of a base and a supporting element, while the supporting element has a cup-shaped extension for fixing the cadaver eye of the animal, and at the base there is a channel for installing a diode lighting element, made in the form of a diode bulb in red to create a red reflex from the fundus.

Description

The device relates to medicine - class A61B 5/107, A61F 9/007, in particular, to ophthalmology, and is intended for training ophthalmologists in surgical procedures on the eyeball.

BACKGROUND

Today, the development of ophthalmic surgical technologies and the improvement of equipment has reached the level at which the training of surgeons in manual skills became impossible without the creation of specialized training centers at educational and clinical institutions.

At the St. Petersburg branch of the FSBI MNTK Eye Microsurgery named after Acad. C.H. Fedorova »Ministry of Health of the Russian Federation in 2000 for the first time in Russia, a WetLab training center was created to train surgeons. As educational material, it uses pork cadaver eyes.

There are a number of products designed to fix the cadaver eye. These devices are most often used in keratoplasty for cutting a donor transplant (RU 1697794, 12/15/1991, description p. 1-2). At the same time, their use for educational purposes is limited due to the impossibility of modeling the effect of the red reflex from the fundus, as well as the lack of control of the level of intraocular pressure.

For the same reasons, the use of A.I. Gmyrya and coauthors of a device for teaching eye operations (RU 930347, 05.23.1982, description p. 1-2). Fixation of the eyeball in it is achieved by mechanical pressure on the front surface of the eye, which significantly violates the anatomical relationship, and when the eyeball is opened, it causes intraocular membranes to fall out.

ESSENCE OF A USEFUL MODEL

The technical result of the proposed utility model is to ensure reliable fixation of the cadaveric eye of the animal with the ability to control the level of ophthalmotonus, preserve intraocular anatomical ratios and create a red reflex from the fundus during training in ophthalmic surgery.

The technical result is achieved by creating negative pressure and lighting from the posterior pole of the eye. To do this, use a plastic vacuum head into which the cadaver eye is inserted. At the bottom of the head, in addition to the hole for the vacuum source, there is a port for installing a lighting element - a red diode lamp, which, illuminating the rear surface of the eye at an angle of 90 degrees, provides a red reflex from the fundus. As a source of vacuum discharge, a disposable 20 ml syringe is used, connected to a vacuum head by means of a flexible silicone tube with a clamp. The vacuum head is mounted on a U-shaped stand made of polymethyl methacrylate.

A utility model is illustrated in FIG. 1-4. In FIG. 1 is a side view of a vacuum head. In FIG. 2 is a top view of a vacuum head. In FIG. 3 is a top view of a stand for a vacuum head. In FIG. 4 shows a side view of the stand for the vacuum head.

The vacuum head is made of transparent polymethylmethacrylate and consists of two parts - the base 1 and the supporting element 2 for the cadaver eye. In the supporting element 2 there is a cup-shaped extension 3 for installing the eye, as well as the outer part 4 of the vacuum stroke. At the base 1 is the inner part 5 of the vacuum stroke and the channel 6 for installing the lighting element. The diameter of the base 1 is equal to the diameter of the holes 7 of the stand.

The stand for the vacuum head is shown in Fig.3-4. It is made of transparent polymethylmethacrylate and has a U-shape. In the center of the stand there is a round through hole 7 for mounting the vacuum head.

Using the proposed device allows you to:

1. Reliably fix the cadaveric eyeball while maintaining intraocular anatomical proportions

2. Effectively regulate the level of intraocular pressure, depending on the tasks

3. Improve the visualization of intraocular structures through the use of a lighting element and modeling of the red reflex from the fundus

4. Reduce the number of eyes used during the development of manual skills of ophthalmic surgeons

5. Improve training

Claims (1)

A device for fixing the cadaver eye of an animal, characterized in that the device is made in the form of a vacuum head consisting of a base and a supporting element, while the supporting element has a cup-shaped extension for fixing the cadaver eye of the animal, and at the base there is a channel for installing a diode lighting element, made in the form of a diode bulb in red to create a red reflex from the fundus.

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