RU2798306C1 - Nozzle-compressor on the uv irradiator for directing the flow of ionized air from the body of the uv irradiator into the wound or cavity through the drainage system - Google Patents

Abstract

FIELD: medical equipment.

SUBSTANCE: invention relates to a nozzle-compressor on a UV irradiator for directing the flow of ionized air from the UV irradiator body into a wound or cavity through a drainage system. The nozzle contains a housing with a closed distal end and an open proximal end, a mechanism for attaching to a source of UV radiation from the side of the open proximal end, an air compressor located inside the housing. The air compressor is made with the ability to control the power, has a connector for connecting to a power source and is equipped with an outlet pipe at a closed distal end. The fastening mechanism contains clamping latches and a holder of latches fixed on the body.

EFFECT: increasing the effectiveness of the treatment of wound infection by supplying ozonized and ionized air from the body of the UV radiation source through the drainage system to the focus of inflammation — into the wound or body cavity.

3 cl 5 dwg

Description

SUBSTANCE: invention relates to medical equipment, namely to devices for treating a surgical infection, and can be used as a nozzle-compressor on a UV irradiator for directing the flow of ionized air from the irradiator body into a wound or cavity through a drainage system.

Physiotherapeutic influence on the wound process was extremely popular in the second half of the 20th century, especially in the USSR. However, physiotherapy methods have a significant drawback - most of them can only be used in special physiotherapy rooms, which limits their use in intensive care and resuscitation wards, outside hospitals and clinics, as well as on weekends. This was one of the reasons for the "victory" of pharmaceutical technologies over physiotherapy. However, physical therapies, in particular active and passive drainage, are the mainstay of wound management in surgical infection. The evolution of active wound drainage technology has led to the emergence of VAC therapy, which is gradually replacing other methods of physical influence. This is more due not to the advantage of the technology, but to the commercial success due to the ease of use of the equipment and the convenience of wound care.

In the 80-90s of the last century, the treatment of wounds in an abacterial environment was actively used. Treatment in an abacterial environment required the use of special installations that purify and humidify the air, and supply them to special chambers designed for different volumes of the patient's body (whole limb or part of the limb). Among domestic enterprises, the production of such cameras was carried out by the Miass Plant of Medical Equipment (http://www.laminar.ru/baza-znaniy/baza-znaniy_37.html). At present, the production of such cameras has been discontinued and the enterprise is focused on the production of a wide range of equipment (including medical) for the creation of "clean zones". Similar Western-made devices are known - a medical chamber for treating wounds with oxygen Hyper-boxSystem (AOTI Ltd., Ireland) - for chronic difficult-to-heal wounds, trophic ulcers, diabetic foot, burns, bedsores, frostbite (https://manualzz.com/doc/ 7045658/hyper-box). A common disadvantage of such devices is the bulkiness of the equipment and limited mobility, which create inconvenience in practical use.

Ozone therapy was also actively used to treat purulent wounds. This did not always involve the direct use of an ozone generator next to the patient. For example, in the 90s and early 2000s, washing of wounds with ozonized saline was used, as well as intravenous infusion of an ozonized solution [Minenkov A.A., Filimonov R.M., Pokrovsky V.I. et al. Basic principles and tactics of ozone therapy. A guide for doctors. Moscow, 2001, 37 p.; Kiyashko M.N., Kiryanova V.V. Medical technology: ozone therapy. Guidelines. State educational institution of additional professional education St. Petersburg Medical Academy of Postgraduate Education, St. Petersburg 2008; Khuranov A.A. Ozone therapy in purulent surgery // Successes of modern natural science. - 2004. - No. 3. - S. 42-43; Babaev, X. On the effectiveness of the use of ozone therapy in the treatment of purulent wounds of soft tissues / X. Babaev, Sh. Orazbaev. - Text: direct // Young scientist. - 2011. - No. 9 (32). - S. 235-241]. Local therapy consisted in washing the wounds (previously treated with antiseptics) and cavities with ozonized saline solution in the regime of 35-45 mg/l - 5-10 min - daily. Systemic (general) therapy was carried out in the form of an intravenous infusion of ozonized in the mode of 20-35 mg/l - 5 minutes of saline every other day [Khuranov A.A. Ozone therapy in purulent surgery // Successes of modern natural science. - 2004. - No. 3. - S. 42-43; Babaev, X. On the effectiveness of the use of ozone therapy in the treatment of purulent wounds of soft tissues / X. Babaev, Sh. Orazbaev. - Text: direct // Young scientist. - 2011. - No. 9 (32). - S. 235-241]. Similar methods of treatment were used in a later period of time [Vlasov A.P., Kulygin I.V. Ozone therapy in the complex treatment of acute paraproctitis // Modern problems of science and education. - 2013. - No. 1.]. The disadvantage of such an "indirect" effect of ozone is its low concentration, which requires a significant duration of exposure for a bactericidal effect.

A more effective method of ozone therapy is the direct effect of the ozone-oxygen gas mixture on the wound [Vinnik Yu.S., Plakhotnikova A.M., Kirichenko A.K., Kukonkov V.A., Teplyakova O.V. The use of a directed flow of an ozone-oxygen gas mixture for the sanitation of a purulent wound in the experiment. // News of Surgery, 2015, T. 23, No. 4, S. 372-378].

However, the direct impact of ozone requires the use of special technical solutions that exclude the accumulation of ozone in the surrounding space.

At present, ozonizers of the AQUAPURE company, founded in Germany in 2002 and organizing production in China in 2009, are known on the medical equipment market (http://aquapuregroup.com/ru/medical-ozone-generator/ozone-limb-bag .html). The enterprise produces ozone generators for ozonizing water, medical solutions, indoor air, as well as bags for ozone worn on limbs and other related products. There are other foreign analogues. One of the Russian enterprises producing medical ozonizers is Lepse Electric Machine Building Plant (https://www.lepse.com/products/145/5276/).

A feature of this equipment is the use of pure oxygen (O ₂ ), which is supplied to the generator from a cylinder and converted into ozone (O ₃ ). The ozone concentration can be adjusted from 1 to 30 mg/l at an oxygen consumption of 0.2 to 1.0 l/min for the Lepse ozonator, and from 1 to 107 mg/l at a rate of 8.5 l/min for AQUAPURE ozone generators. The disadvantage of this equipment is the need to use special bags for local wound therapy, in which a sufficient concentration of ozone is created for a rapid bactericidal effect and its accumulation in the environment at a dangerous concentration for humans is excluded.

A device for local treatment of biological tissues with an ozone-oxygen mixture is known, containing an ozone generator, an ozone-oxygen mixture supply line, at the open end of which there is a nozzle located above the outer opening of the exhaust gas mixture discharge circuit, the outlet end of which is connected in series with the destructor chamber and the compressor . The supply line of the ozone-oxygen mixture is located in the cavity of the exhaust gas mixture discharge circuit, and the nozzle of the supply line is fixed by holders in a central position relative to the inner walls of the discharge circuit and 5 mm above its outer opening [RF patent No. 151779, IPC A61M 37/00, publ. . 20.04.2015]. The device has an exhaust gas mixture discharge circuit with an ozone destructor, which prevents ozone from entering the environment. However, according to the description, the rate of aspiration of the exhaust gas mixture is 10-50 times higher than the rate of supply of the ozone-oxygen mixture, and the nozzle of the supply line is located 5 mm above the outer opening of the discharge circuit. Under such conditions, the concentration of ozone in the area of the effect of the gas mixture on tissues should be significantly reduced. And although the authors point to maintaining a sufficient concentration of ozone in the affected area (40 mg/l at a gas flow rate of 2 l/min), the device can only be used to treat superficial wounds. The method of use involves holding the tip for ozonizing wounds at a distance of 0.5-1.0 cm from the surface under visual control. The total exposure time was 5 minutes, the duration of treatment was 7 days.

The disadvantage of the device is the inability to supply the gas mixture deep into the tissues and into the internal cavities.

In accordance with the recommendations of the World Health Organization, the average concentration of ozone in a room over 8 hours should not exceed 100 µg/m ³ (0.0001 mg/l). Such a concentration of ozone in the room can be achieved only with many hours of operation of ozonizers in the absence of ventilation. According to the parameters of acute toxicity, ozone belongs to the 1st hazard class. According to GOST 12.1.007-76, the maximum allowable concentration (MPC) of ozone in the air of the working area is 0.1 mg / m ³ , the maximum one-time maximum allowable concentration of ozone in the atmospheric air is 0.16 mg / m ³ , the average daily maximum allowable concentration of ozone in the atmospheric air - 0.03 mg / m ³ . Inhalation of high concentrations of ozone (9 mg/m ³ ) and above may cause coughing, eye irritation, headache, dizziness and retrosternal pain. It should be clarified that the characteristic smell of ozone begins to be felt already at concentrations of 0.004-0.015 mg / m ³ , which is significantly lower than the toxic dose [https://zen.yandex.ru/media/72sad/mnogo-kto-govorit-pro-myte- mk-no-pochemuto-malo-kto-govorit-pro-kvarcevateli-uflampy-i-ozonatory-5e99d93724270736479fa725]. The bactericidal effect of ozone manifests itself at high concentrations (starting from 0.006 mg/l), but many times lower than the maximum concentration of ozone at the outlet of medical ozonizers. The high concentration of ozone at the output of medical ozonizers suggests their use only for local impact on the pathological process or ozonation of solutions. It is known that a concentration of 1-5 mg/l is sufficient to kill any microorganisms and viruses [https://nedorogo24.ru/otzyvi-soveti/koronovirus-obezzarazhivanie-vozdukha-ultrafioletom-i-ozonom/]. Depending on the concentration and pathogen, exposure varies over a wide range - from a few seconds to half an hour or more. Domestic studies of the bactericidal effect of ozone on Escherichia coli, Pseudomonas aeruginosa and Staphylococcus aureus were carried out by different authors also at different ozone concentrations (usually hundredths and tenths of mg/l). The exposure time for the death of 97-99% of the bacteria was 1-4 hours [Babaev, X. On the effectiveness of the use of ozone therapy in the treatment of purulent wounds of soft tissues / X. Babaev, Sh. Orazbaev. - Text: direct // Young scientist. - 2011. - No. 9 (32). - S. 235-241. - URL: https://moluch.ru/archive/32/3635/ (date of access: 20.04.2022)]. Thus, ozone therapy can be effective at lower concentrations of ozone. But to achieve a clinical effect, a large exposure is needed.

In modern studies, it has been proven that when using air ionizers, the bactericidal effect is due to the totality of positive and negative ions (O ₂ -, N ₂ -, O ₂ +, N ₂ +), with a low concentration of ozone [ParkJ.S., SungB. J., YoonK.S., JeongC.S. Thebactericidaleffectofanionizerunderlowconcentrationofozone // BMC Microbiol 16, 173 (2016). https://doi.org/10.1186/s12866-016-0785-5 URL: https://translated.turbopages.org/proxy_u/en-ru.ru.57c9e317-63029a0f-5443b795-74722d776562/https/bmcmicrobiol.biomedcentral .com/articles/10.1186/s12866-016-0785-5].

The researchers found that the rapid supply of ionized air to the focus of infection is of fundamental importance, since the lifespan of ions is microseconds, and in the form of clusters - 1-2 minutes. The authors observed a bactericidal effect only when creating an air flow using a fan; in the absence of active air supply, there was no bactericidal effect. In addition, it was found that the use of ion traps significantly reduces the bactericidal effect. That is, at low concentrations of ozone, the clinical effect can be achieved only with the rapid supply of ionized air to the inflammation site.

Ozonation and ionization of air occurs during the operation of any sources of UV radiation used in medicine, for example, UV emitters and recirculators. At the same time, the concentration of ozone and ions formed in the environment, subject to the operating regulations, does not exceed the permissible concentration. In this regard, UV irradiators and recirculators, which also generate ozone, but in safer concentrations than specialized generators, can be used as a source of ozone and ions.

The technical problem lies in the development of a device in the form of a nozzle-compressor on a source of UV radiation for supplying ozonized and ionized air through the drainage system into a wound or cavity during a surgical infection.

The technical result consists in increasing the efficiency of wound infection treatment by supplying ozonized and ionized air from the body of the UV radiation source through the drainage system to the site of inflammation in the wound or body cavity.

The technical problem is solved by the fact that, according to the invention, the nozzle-compressor comprises a housing with a closed distal end and an open proximal end, a mechanism for attaching to a UV radiation source from the side of the open proximal end, an air compressor located inside the housing, while the air compressor is made with the possibility of power regulation, has a connector for connecting to a power source and is equipped with an outlet at a closed distal end, while the attachment mechanism contains at least two clamps and a holder of clamps fixed on the body.

Clamping clamps are made in the form of a rod with an external thread, at one end of which there is a head and a nut for rotating the clamp, and at the other end there is a transverse pin.

The retainer holder has two through grooves for placing the retainers from its opposite sides and a hole with an internal thread for screwing onto the mating thread on the outer surface of the housing from the side of the open proximal end.

The invention is illustrated by drawings.

In FIG. 1 shows the body of the claimed device in two projections without a fastening mechanism (Fig. 1A and Fig. 1B).

In FIG. 2 (A, B) presents the elements of the attachment-compressor attachment mechanism.

In FIG. 3 shows a general view of the compressor attachment for the UV irradiator assembly.

In FIG. 4 shows an example of using a nozzle-compressor with a UV irradiator of the "Sun" type.

In FIG. 5 shows an example of fastening a nozzle-compressor on a recirculator grate.

Positions in the drawings indicate: 1 - housing nozzle-compressor, 2 - closed distal end, 3 - open proximal end, 4 - thread on the housing from the side of the open end, 5 - air compressor, 6 - compressor outlet, 7 - compressor power regulator , 8 - connector for connecting the compressor power supply, 9 - clamp holder, 10 - internal thread on the clamp holder, 11 - through grooves for clamps, 12 - clamp, 13 - threaded rod, 14 - clamp head, 15 - transverse clamp pin, 16 - clamp nut, 17 - washers, 18 - spring, 19 - UV irradiator, 20 - power cable, 21 - ozonized air supply tube, 22 - recirculator grille.

The nozzle-compressor has a housing 1 in the form of a cylinder with a closed distal end 2 and an open proximal end 3. On the outer surface of the housing 1 from the side of the proximal end 3 there is a thread 4 for the attachment mechanism. Inside the housing there is an air compressor 5, which during operation sucks in the air mixture from the side of the open proximal end 3. The outlet pipe 6 of the compressor exits at the closed distal end 2, next to it there is a compressor power regulator 7 and a connector for connecting the power supply of the compressor 8 (Fig. 1A and Fig. 1B).

The fastening mechanism contains at least two clamps 12 and a clamp holder 9 fixed on the body 1. The clamp holder 9 has an internal thread 10 for screwing onto a mating thread 4 on the outer surface of the case 1 and two through grooves 11 for clamps 12 ( Fig. 2A). The clamping latch 12 has the form of a rod 13 with an external thread, at one end of which there is a structural element for rotating the latch in the form of a head 14, and at the other end - a transverse pin 15. One arm of the pin 15 can be bent in the plane of the rod 13, forming a hook. The head 14 may have a cylindrical shape with a knurled side surface (as shown in Fig. 2B), turnkey chamfers or a slot on the end. Closer to the head 14 is the nut 16, which can be round knurled for tightening by hand or hex key. Between the nut 16 and the pin 15 there are two washers 17 and a spring 18.

With the help of a threaded connection 4 on the body 1 of the nozzle-compressor, the holder of the clamps 9 is fixed with two clamping clamps 12 installed in the through grooves 11 in such a way that the heads 14 and nuts 16 are located on the side of the closed distal end 2, and the washers 17 and the spring 18 with the other side of the retainer holder 9 (Fig. 3).

The elements of the nozzle-compressor can be made of any materials that are approved for use in medicine and have the necessary mechanical properties for operation. Small compressors can be used as a compressor, for example, for tonometers or VAC therapy devices. The diameter of such compressors is about 3 cm, and the length is 5-7 cm, which makes it possible to use them in a housing comparable in diameter to the tube of a UV irradiator. As a rule, they have a power of about 2 W and can create pressure up to 300 mmHg. in a container of 100 mm ³ . This is enough to inject ozonized air into small cavities in abscesses of various localization and wound infection. The air flow rate is 2.4 l/min. For ozonation of cavities of a larger volume - the abdominal or pleural cavity, it is necessary to use compressors of greater power. You can use the USB port of a computer, tablet, Powerbank or USB adapter as a power source for the compressor. The nozzle-compressor can have an autonomous power source, which can be recharged via a USB connector.

Before starting work, in the half-open through grooves 11 on the holder of the clamps, 9 of the fastening mechanism, clamping clamps 12 are installed. In this case, the nut 16 moves along the thread to the head 14, the rod 13 is inserted into the groove 11 so that the holder 9 is between the nut 16 and the washer 17 Then, along the thread 4, the holder 9 is screwed onto the body 1 of the nozzle-compressor. To attach the nozzle to the source of UV radiation, body elements are used - the edges of the hole in the UV irradiator damper for installing the tube, the recirculator grille, or any technological structural elements that allow pin 15 to be hooked onto them.

The thread 4 allows the holder of the clamps 9 to be displaced relative to the housing 1 of the nozzle-compressor in such a way that the pins 15 of the clamping clamps 12 are extended relative to the open end 2 at a sufficient distance to be fixed to the elements of the UV emitter housing 19 (Fig. 4). By shifting the clamps 12 in the grooves 11, it is necessary to set a distance between them equal to the distance between the elements of the UV emitter housing, for which it is planned to fix the nozzle-compressor. For example, when using a nozzle-compressor with a UV irradiator of the "Sun" type, the distance between the clamps 12 is set equal to the diameter of the hole in the damper for installing the tube. The holder of the clamps 9 is displaced along the thread 4 relative to the body 1 and the open proximal end 3 is inserted into the hole for installing the tube. With the help of the heads 14, the pins 15 are rotated perpendicular to the edges of the hole for the tube. The edge of the hole is clamped between pin 15 and washer 17, and the pressing force is adjusted using nut 16. To power the compressor nozzle, cable 20 is connected, and to supply ozonized air to the wound or drainage system, tube 21 is put on the outlet pipe of compressor 6.

In the case of fixing the nozzle-compressor on the recirculator grille 22, through which ozonized air is supplied to the room, a feature is the method of attaching the nozzle to the grill - by passing the pins 15 between the elements of the grille inside the housing and tightening the clamps 12 with the help of nuts 16. Open proximal end 3 nozzle-compressor is pressed against the grate and ozonized air enters the compressor through it (Fig. 5).

The device works as follows.

After attaching the nozzle-compressor to the UV irradiator type "Sun" with clamps, as shown in figure 4, it is necessary to turn on the nozzle-compressor in the network through the adapter or use an autonomous power source of the nozzle. Next, a UV irradiator is included in the network. According to the instructions, it takes about a minute to warm up the emitting lamp and enter the operating mode of the UV irradiator.

The compressor begins to pump ionized air from the UV irradiator housing through tube 21 into the wound or through the drain into the body cavity. When exposed to the wound surface, the tube must be kept at a distance of no more than 0.5-1 cm, exposure for at least two minutes per area. For convenience, ionized air can be injected into the wound under the film, which allows you to simultaneously act on the entire wound surface and creates excess pressure that has a positive effect on microcirculation. To do this, the film must have an additional hole for the exit of air of a smaller diameter than the tube 21. The injection of ionized air into the purulent cavity (abscess, phlegmon, purulent flow) is possible through the drains. In this case, it is necessary to limit the air outlet through the second lumen (when using a double lumen drain) or through other drains. It is advisable to carry out this procedure after washing the cavity with an antiseptic, with confidence in the patency of the drains. Exposure 5-10 minutes depending on the volume of the cavity.

The authors conducted an experimental study in which they compared the effectiveness of exposure to the biomaterial flow of ionized air and direct ultraviolet (UV) radiation. The study used biomaterial taken from purulent wounds or from the surface of trophic ulcers in 29 patients treated in the surgical department No. 2 of the State Healthcare Institution “City Clinical Hospital No. IN AND. Razumovsky, Saratov. The material was taken from the wound or from the surface of the trophic ulcer with two sterile swabs. Next, one swab was immediately placed in a sterile test tube, and the other was exposed to direct UV radiation or an ionized air flow from the UV irradiator housing.

After exposure to UV radiation or a stream of ionized air, the second swab was also placed in a test tube, and both samples were delivered to the bacteriological laboratory of the State Clinical Hospital No. IN AND. Razumovsky. Then immediately carried out sowing on a dense nutrient medium. The sampling of the material and sowing was done by one person, which reduced the influence of random factors. When sowing, the swab was “rolled” over the nutrient medium in such a way that its entire surface came into contact with the medium. Blood agar was used as a nutrient medium.

The number of colony forming units (CFU) was counted on the second day. For each case, the number of CFU in the inoculation of biological material without irradiation was compared with the number of CFU in the inoculation of the material after irradiation.

The express seeding method used without using the enrichment medium and counting the number of CFU from one swab provided for the following numerical expression.

In the presence of single colonies up to 10 pieces, the designation <10 ³ CFU per swab (CFU/ swab) was used. If up to 20 colonies were found, then 10 ³ CFU / swab. If more than 21 colonies are found, but less than 100 - 10 ⁴ cfu / swab. More than 100 colonies 10 ⁵ CFU / swab. Accordingly, the number of CFUs could be the same (denoted as "differences not detected"), there could be a slight decrease in the number of CFUs within a degree, or a significant decrease with a change in the degree of the CFU/tampon indicator. For example, a change in the number of CFU from 10 ⁵ to 10 ⁴ was considered significant.

UV exposure to the biomaterial (smear from a purulent wound or from the surface of a trophic ulcer) was carried out using an ultraviolet quartz irradiator OUFK-01 "Solnyshko". Two tubes were used for local irradiation of the biomaterial with an outlet of 5 mm and 15 mm. Irradiation in the effective spectral range (wavelength 257 nm) at the 5 mm tube cut was at least 0.8 W/m ² , and at the 15 mm tube cut - at least 1 W/m ² .

Irradiation of biological material was carried out in two ways. In the first method, the tampon was located directly in front of the outlet of the 5 mm tube. The exposure was 3 minutes (number of observations six) and 5 minutes (number of observations five). In the second method, the tampon was placed inside a tube with a 15 mm outlet. Exposure time 3 and 5 minutes (six observations in each case). It should be noted that in all variants of irradiation, only a limited area of the tampon was exposed to a greater extent. For a more uniform distribution of radiation, the swab was slowly turned, although this reduced the time of exposure to individual areas.

To study the effect of the ionized air flow, special test tubes were made. In standard disposable test tubes for taking biological material, the bottom was cut off and two holes were made in the region of the tube neck. To attach the test tube to the working part of the tube, an adapter was made from a polypropylene tube. The irradiator "Sun" turned tube up.

The adapter was put on the tube, and a test tube was inserted into it. The simplest design made it possible to orient the flow of ascending air through the test tube with a swab and evaluate the effect of this factor. Six experiments were carried out. The exposure was reduced to two minutes. Before each study, test tubes and adapters were treated in an antiseptic solution in accordance with the instructions for sterilizing surgical instruments. The swab with the biological material was placed inside the test tube, carefully, without touching its walls. The distance from the working part of the tube to the tampon was from 0.5 to 1 cm. In contrast to the second series of experiments, where the tampon was also irradiated inside the tube, there was a constant effect of the ascending air flow containing oxygen ions and ozone formed during the operation of the UV irradiator.

Among the causative agents of purulent infection in the crops, as a rule, gram-positive cocci or gram-negative rods, as well as fungi of the genus Candida were detected. Gram-positive rods and Gram-negative cocci were not found in any of the cultures. Gram-positive cocci were sown: Staphylococcus epidermidis, Staphylococcusaureus, Enterococcus faecalis, Enterococcus faecium. From gram-negative rods: Escherichiacoli, Enterobacteraerogenes, Pseudomonasaeruginosa, Klebsiellapneumonia.

In the first variant of irradiation, when the tampon was located directly in front of the outlet of the tube, with an exposure of 3 minutes, the following results were obtained: no growth - 1 observation; differences were not revealed - 4 observations; slight decrease in the number of CFU - 1 observation.

Increasing the exposure to 5 minutes improved the results of ultraviolet exposure. In five observations, the following results were obtained: no growth - 0; no differences were found - 2; a slight decrease in the number of CFU - 2 observation; a significant decrease in the number of CFU - 1 observation.

When irradiating a swab inside a tube with an outlet diameter of 15 mm and exposure for 3 minutes, the following results were obtained: no growth - 1 observation; differences are not revealed - 0; slight decrease in the number of CFU - 3 observations; a significant decrease in the number of CFU - 2 observations.

With an increase in exposure to 5 minutes, the results of the crops were as follows: no growth - 0; differences are not revealed - 0; slight decrease in the number of CFU - 3 observations; a significant decrease in the number of CFU - 3 observations.

When the biomaterial was exposed to direct UV radiation through a standard tube with an outlet diameter of 5 mm, the bactericidal effect was manifested only after an exposure of 5 minutes. At the same time, only in half of the cases there was a slight decrease in the number of CFU. When irradiated inside the tube, a significant decrease in the number of CFU was noted in almost 50%. But, the greatest decrease in the number of CFU occurred not as a result of direct exposure to UV radiation, but when the biomaterial was exposed to an ascending flow of ionized air. When the biomaterial was exposed to an ascending flow of ionized air, a significant decrease in the number of CFUs was observed in almost all smears at an exposure of 2 minutes (a slight decrease in the number of CFUs - 1 observation; a significant decrease in the number of CFUs - 5 observations). Thus, the authors indirectly confirmed the greater efficiency of exposure to the flow of ionized air in comparison with direct UV radiation.

As can be seen from the description and figures, the proposed attachment-compressor to the source of UV radiation allows you to supply ozonized and ionized air from the body of the source of UV radiation through the drainage system to the focus of inflammation - to the wound or body cavity.

Thus, for the first time, the authors developed a nozzle-compressor, which has a universal attachment mechanism and can be fixed on any source of ozone and air ions, for example, on a UV irradiator of the "Sun" type instead of a tube or on a recirculator grate, during which ozone is always formed and air is ionized.

Claims (3)

1. Nozzle-compressor on the UV irradiator for directing the flow of ionized air from the body of the UV irradiator into a wound or cavity through a drainage system containing a body with a closed distal end and an open proximal end, a mechanism for attaching to a UV radiation source from the open proximal end , an air compressor located inside the housing, while the air compressor is made with the ability to control power, has a connector for connecting to a power source and is equipped with an outlet pipe at a closed distal end, while the attachment mechanism contains at least two clamps and a clamp holder attached to the body. 2. Nozzle-compressor according to claim 1, in which the clamping clamps are made in the form of a rod with an external thread, at one end of which there is a head and a nut for rotating the clamp, and at the other end there is a transverse pin. 3. The nozzle-compressor according to claim 1, in which the retainer holder has two through grooves for placing the retainers on its opposite sides and a hole with an internal thread for screwing onto a mating thread on the outer surface of the housing from the side of the open proximal end.

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