RU68293U1 - DEVICE FOR REMOVING SECONDARY CAPTED CATARACT - Google Patents

Abstract

The utility model relates to ophthalmology. The purpose of the utility model is to reduce the complexity of removing secondary membranous cataracts. The device contains a housing idea moving half loops. 1 pf, 1 ill.

Description

The utility model relates to medicine, and more particularly to ophthalmology, and can be used to remove secondary membranous cataracts.

Known ophthalmic surgical device containing a housing with a working tip in the form of a movable and fixed tube with a cutting edge (1). The disadvantage of this tool is the inconvenience of removing membranous cataracts.

Known ophthalmic instrument containing a housing with an aspiration chamber with a closed end and a cutting edge and a working element with a cutting edge at the end (2). The disadvantage of this device is the complexity when removing membranous cataracts.

A device for the destruction and aspiration of the nucleus of a cloudy lens containing a source of ultrasonic vibrations and a working tip made in the form of a rod with a longitudinal through channel (3). The disadvantage of this device is the complexity in use.

Known ophthalmic instrument containing a cannula tube and a cutting working part (4). The disadvantage of this device is the possibility of tissue injury when removing secondary membranous cataracts.

Also known is a device for removing membranous cataracts containing two mobile half-loops (5). The disadvantage of this device is the increased complexity.

The purpose of creating a utility model is to reduce the complexity of removing secondary membranous cataracts.

This goal is achieved by the fact that the device comprises a tubular body, the end of the outer half-loop is pointed, each of the half-loops

rigidly connected to one of the two maximally installed tubes, the second end of the outer tube is rigidly connected to the cover of the tubular body made with a Central hole and mounted to rotate on the sliding nozzle, the second end of the inner tube passes through the Central hole of the cover of the tubular body and is rigidly connected to the inner the surface of the tubular body, on the free end of which a stopper is installed.

Comparison of the proposed device with other known in the field of ophthalmology showed its compliance with the criteria of the utility model. The utility model is illustrated by graphic material, which depicts the proposed device.

The proposed device for removing secondary membranous cataracts contains a tubular body 1 and two separate half-loops 2 and 3. The outer half-loop 2 is made with a pointed ring. In closed condition. The inner surface of the outer half-loop 2 is in contact with the outer surface of the inner half-loop 3. Each of the half-loops 2 and 3 is rigidly connected to one of the two coaxially installed tubes 4 and 5. The second end of the outer tube 4 is rigidly connected to the cover 6 of the housing 1. The cover 6 is made with a central hole and is located with the possibility of rotation on a sliding nozzle. The second end of the inner tube passes through the hole in the cover 6 of the tubular housing 1 and is rigidly connected to the inner surface of the housing 1, on the free end of which there is a stopper 7.

The device is used as follows: in a closed state, half loops 2 and 3 are inserted into the anterior chamber of the eye through a limbal incision 3 mm long. Through the inner tube 5 connecting the half loop 3 with the housing 1, liquid is supplied to maintain a constant volume of the front chamber by means of an aspiration-irrigation system connected to the shutter 7. Half loops 2 and 3 are parted by rotating the housing 1 relative to the cover 6 and the pointed end of the outer half loop 2

perforated membranous cataract at the pupillary margin from above. Half loop 2 is carried out under the film and its pointed end is punctured through the film at the opposite pupil edge. The inner loop 3 is located above the film. By turning the housing 1 counterclockwise, and the cover 6 clockwise moving the loops 2 and 3 in the indicated directions, cross the left half of the film. Then, in the manner described, the inner half loop 3 moves clockwise. And the outer half-loop 2 is counterclockwise towards the inner half-loop 3, and the film crosses in the remaining sections. Install half loops in a closed state. The film is “sucked” through the channel of the inner tube 5 and is removed together with the device from the eye.

Using the proposed device allows with minimal labor to produce high-quality removal of secondary membranous cataracts. The proposed device is easy to use and design. The device is advisable to use in the ophthalmic departments of medical institutions.

INFORMATION SOURCES:

1. US patent No. 3815604, CL. 128-305, 1974.

2. Copyright certificate of the USSR No. 1457196, Cl. A61F 9/00, 1985.

3. Copyright certificate of the USSR No. 824513, Cl. A61F 9/001, 1979.

4. Copyright certificate of the USSR No. 1438772, Cl. A61F 9/001, 1988.

5. Copyright certificate of the USSR No. 632253, Cl. A61F 9/00, 1988.

Claims (1)

A device for removing secondary membranous cataracts, characterized in that the device comprises a tubular body, the end of the external half-loop is pointed, each half-loop is rigidly connected to one of two coaxially installed tubes, the second end of the external tube is rigidly connected to the cover of the tubular body made with a central hole and mounted rotatably on a sliding nozzle, the second end of the inner tube passes through the central hole of the lid of the tubular body and is rigidly connected the inner surface of the tubular body, the free end of which is mounted shtuper.