RU2119783C1 - Device for performing eyeball irrigation - Google Patents

Abstract

FIELD: medical engineering. SUBSTANCE: device has casing provided with cap in its lower part. The upper part of the casing has tube w through axial opening and nipple, double-walled cap with cavity and perforated wall produced as concave contact lens which curvature radius corresponds to that of cornea. EFFECT: provided direct interaction of activating and curative ingredients with lesion area; usable in emergency situations; accelerated elimination of harmful and toxic chemical substances, microorganisms and tissue degradation products. 2 dwg

Description

 The invention relates to medicine, namely to ophthalmology, and can be used in the treatment of acute inflammatory diseases, burns, chemical and mechanical damage to the eyes in emergency situations.

 A known dialyzer model, which is a three-dimensional chamber, consisting of a rigid cap made as a unit in the form of a thin plate of a rigid material, impervious to liquid and gas, having the shape of a ball segment with two conjugate radii of curvature. The leading and outlet tubes are mounted in the central part of the cap; for irrigation of the cornea, the drugs pass through the lead tube to the placenta placed between the cornea and the cap and flows through the outlet tube. (Extraocular transmembrane dialysis in the treatment of acute inflammatory processes of bacterial etiology and eye burns - Guidelines. Krasnoyarsk, 1989, p. 1-13), which is adopted as a prototype.

 The known dialyzer model has the following disadvantages: in emergency situations, a membrane (placenta) may be absent; not all deactivating and therapeutic components penetrate the membrane; not all metabolic and biodegradation products are removed from the cornea and conjunctiva through the membrane; delayed therapeutic effect.

 The problems arising from the disadvantages of the known model are solved by the proposed device, comprising a housing, which is equipped in the upper part with a tube with a through axial hole and a fitting for connection to the feed system of a neutralizing or therapeutic component, depending on the etiology of the damage; in the lower part - a double-walled cap with a cavity for removal of the component, a perforated cup-shaped wall made in the form of a concave compact lens with a radius of curvature corresponding to the radius of curvature of the cornea; in the middle part - a fitting for draining the component, and the cap at the distal end has a sealing belt.

 In FIG. 1 shows a General view of the device, a longitudinal section; in FIG. 2 - the same, top view.

 The irrigation device comprises a housing 1, which is provided in the upper part with a tube 2 with a through axial hole 3 and a fitting 4 for connecting a component supply system (liquid or gaseous); in the lower part - a double-walled cap 5 with a cavity 6 for removal of the component, a perforated septum 7, made in the form of a concave contact lens and a radius of curvature corresponding to the radius of curvature of the cornea; in the middle part with a fitting 8 for drainage; at the distal end of the cap with a sealing belt 9.

 The proposed device is used as follows.

 The device is placed over the eyelids of the patient, the sealing belt 9 is in contact with the conjunctiva of the eyeball 10, while the affected area is under the cap 5. Depending on the etiology of the damage to the tissues of the eyeball, the necessary neutralizing or therapeutic component in the form of a solution (gas) is supplied from the system.

 The path of the component: fitting 4, axial opening 3, cavity 11 between the eyeball 10 and cap 5, perforation 7, cavity 6, cavity 12, fitting 8, atmosphere.

 The proposed device was used in the clinic of the Ufa Research Institute of Eye Diseases.

 Example 1

 Patient K was hospitalized at the Ufa Research Institute of Eye Diseases several hours after the thermochemical (sulfuric acid) burn of the cornea of the right eye. Visual acuity of the right eye 0.2. The left eye is healthy, visual acuity is 1.0.

 Diagnosis: thermochemical burn of the cornea and conjunctiva of the II-III degree of the right eye. Upon receipt of the conjunctiva of the right eye, pale, ischemic. The cornea is in the center and paracentrally turbid, stained with fluorescein, sensitivity is sharply reduced, the anterior chamber is of medium depth, the moisture is transparent. The pupil is round. Departmental departments are difficult to see. Abundant washing with furacilin was done. In the next 2 days, the patient received frequent instillations of sodium sulfacyl, retinol, mydriatics, epithelial ointments. Eye condition worsened. Corneal infiltration somewhat increased. Signs of iridocyclitis appeared. In the following days, the cornea and conjunctiva were irrigated with a solution of gentamicin, heparin, a vitamin solution using the proposed device for 1.5-2 hours. After the first procedure, the patient noted a decrease in subjective complaints, a decrease in pain, and improved sleep. After the third dropper, there was a tendency to improvement: subsidence of iridocyclitis, healing and enlightenment of the cornea. In total, 6 droppers were carried out by the proposed device. The patient was discharged on the 12th day with an almost complete recovery. Visual acuity at discharge of the right eye is 0.9 corr., Left - 1.0.

 Example 2

 Patient S., 30 years old, entered the institute with a chemical burn of the II degree of the left eye (lime). Visual acuity 0.1. The right eye is healthy, visual acuity is 1.0. After copious washing, the patient is hospitalized. For 3 days, a long irrigation was carried out using the proposed device of the anterior part of the eye against the background of symptomatic treatment. On the 2nd day there was a tendency to improve, after 3 irrigation sessions, corneal enlightenment and healing was noted. Discharged on the 8th day with a full recovery of the left eye, visual acuity of 1.0.

 Example 3

 Patient Z. was treated at the place of residence for bacterial keratitis of the right eye for 28 days, without improvement. Upon admission to the institute the diagnosis: right eye - purulent corneal ulcer in the paracentral zone. Visual acuity of 0.09, not corr., The left eye is healthy, visual acuity of 1.0. On admission, the right eye: mixed injection, deep ulceration, 6.5 mm in diameter, with ragged edges, paracentrally downward, isolated precipitates on the endothelium. The smoothness of the iris pattern, moderate drug mydriasis without synechia. When inoculated from the conjunctival cavity, staphylococci in large quantities, sensitive to gentamicin, were isolated. Conducted 8 sessions of the anterior part of the eye with a solution of gentamicin daily proposed device. After the third session, a clear improvement and stabilization of the process was noted, after 4-5 - epithelization and healing of the cornea with a tendency to enlightenment. Discharged on the 10th day with a visual acuity of the right eye of 0.5, does not correct for outpatient treatment to resolve the corneal opacity.

The proposed device has the following advantages:
- the possibility of use in emergency situations, when providing emergency assistance;
- direct contact of the neutralizing and therapeutic components with the lesion site;
- a direct reaction to neutralize the damaging chemical substance with a dactivator;
- accelerated evacuation of damaging chemicals, germs and tissue metabolism products from the front surface of the eye;
- acceleration of the therapeutic effect;
- reduction of rehabilitation periods.

Claims (1)

 An eyeball irrigation device comprising a body with a cap, characterized in that the upper part of the body is provided with a tube with a through axial hole and a fitting for connection to a decontamination or treatment component supply system, the cap is double-walled with a cavity for removing the component, a perforated cup-shaped wall made in the form of a concave contact lens with a radius of curvature corresponding to the radius of curvature of the cornea, in the middle part is equipped with a fitting for draining the component, and the flask the distal end chock has a sealing belt.

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