RU2328250C2 - Thermoelectric ophthalmologic irrigator - Google Patents

Abstract

FIELD: medical equipment.

SUBSTANCE: thermoelectric ophthalmologic irrigator contains medicinal agent container connected with flexible hose to case fitting, equipped with thermoelectric module, and temperature sensor. Case is made of heat-insulating plastic with opposite sides furnished with tubiform extensions one of which ends with fitting, and another one - with drop-shaped expansions with set of small slots, needle radiators are connected to both thermoelectric module joints. Case inner cavity within area from thermoelectric module to drop-shaped expansions is separated with heat-insulating baffle mounted in thermoelectric module plane by two equal parts. From the other side thermoelectric module is also furnished with baffle with slide valve rotating by axis and moving by levers and bimetallic plate, placed under subminiature thermoelectric module with support joints provided with fluid radiators. Temperature sensors are mounted near drop-shaped expansions.

EFFECT: extended range of ophthalmologic irrigators.

1 dwg

Description

The invention can be used in medicine, in particular in ophthalmology.

In ophthalmic practice, there are often diseases accompanied by inflammation of the anterior segment of the eyeball and adjacent tissues, accompanied by purulent discharge. In such cases, ophthalmic irrigation of the anterior segment of the patient’s eyeball is prescribed. For these purposes, either a rubber bulb or a cotton swab dipped in a drug is used.

A disadvantage of existing methods is the inability to adjust the temperature of the drug used for irrigation of the anterior segment of the eyeball, which excludes the possibility of therapeutic exposure to heat and cold.

The aim of the invention is to develop a device for ophthalmic irrigation, combining three factors of the therapeutic effect on the patient's eye: pharmaceutical, mechanical and temperature.

To achieve this goal, a device is proposed, the structural diagram of which is shown in the drawing. The device consists of a thermoelectric module (TEM) 1, to both junctions of which are attached needle radiators 2 and 3. TEM 1 and needle radiators 2 and 3 are located in the casing 4, which is a parallelepiped made of heat-insulating plastic. On two opposite sides, the casing 4 has tube-like extensions, one of which ends with a nozzle 5, and the other a drop-like extension with a set of small holes 6. The inner cavity of the casing 4 from TEM 1 to the wall with a set of holes 6 using a heat-insulating partition 7 passing in the plane TEM 1, is divided into two equal parts. On the other hand from TEM 1 there is also a partition 8, which ends with a valve 9, rotating along axis 10. The movement of the valve 9 is carried out using a bimetallic plate 11 and levers 12, transmitting the movement of the end of the bimetallic plate 11 to the axis 10. The temperature of the bimetallic plate 11 is regulated with using a miniature TEM 13. Heat removal from the supporting junctions of the TEM 13 is performed by a liquid radiator 14 into the liquid flowing in the casing 4. The temperature of the liquid at the outlet of the device is monitored using temperature sensors s 15 arranged in the openings 6.

The principle of operation of the device is as follows.

An ophthalmologist connects the container with the drug using a flexible hose to the fitting 5. By selecting the height of the device, the necessary mechanical effect is selected by adjusting the pressure of the drug. The device is connected to the network and the temperature difference between the jets of cold and hot preparation for ophthal irrigation is set on the control unit (not shown). The patient assumes a supine position. With the help of an eyelid, eyelids are fixed to prevent blinking. The doctor starts the drug and washes the eyeball and nearby tissues with smooth circular movements. The temperature and the ratio of the jets of cold and hot preparation are regulated by the control device by changing the supply current of the thermoelectric module 1 and the position of the valve 9.

The necessary mechanical effect is selected by adjusting the pressure of the drug. The device is connected to the network, and on the control unit (not shown) the temperature difference of the jets of cold and hot preparation for ophthalmic irrigation is set. The patient assumes a supine position. With the help of an eyelid, eyelids are fixed to prevent blinking. The doctor starts the drug and washes the eyeball and nearby tissues with smooth circular movements. The temperature and the ratio of the jets of cold and hot preparation are regulated by the control device by changing the supply current of the thermoelectric module and the position of the valve.

The device is easy to manufacture and can be used in any environment.

Claims (1)

A thermoelectric device for ophthalmic irrigation containing a container for a medicinal product connected by a flexible hose to the sleeve of the casing in which the thermoelectric module is installed, and temperature sensors, characterized in that the casing is made of heat-insulating plastic, on two opposite sides of which there are tube-like extensions, one of which ends with a fitting, and the other with a drop-like expansion with a set of small holes, needles are attached to both junctions of the thermoelectric module radiators, the inner cavity of the casing in the section from the thermoelectric module to the holes of the drop-shaped expansion is divided by a heat-insulating partition installed in the plane of the thermoelectric module into two equal parts, on the other hand from the thermoelectric module there is also a partition that ends with a valve made for rotation on the axis and movements by means of levers and a bimetallic plate connected to a miniature thermoelectric module, the supporting junctions of which are equipped with wives with a liquid radiator, and temperature sensors are installed at the holes of the drop-shaped expansion.