RU2745455C1 - Multifunctional ozone sterilizer - Google Patents

Abstract

FIELD: medicine.SUBSTANCE: invention relates to medicine, namely to multifunctional ozone sterilizers. The sterilizer contains power supplies (1), a switching and control unit (2), an ultrasonic generator with an emitter (3), liquid level sensors, an ozone generator (5), an air compressor (6), an air heater with a temperature sensor, redox potential sensors, ozone concentration sensors, linear actuator with position sensor (10), infrared sensors, sterilization chamber, ozone destructor, data output module (12), osmotic filter (15), reagent container, manual water supply valve (13), electromagnetic liquid valves for the inlet and outlet of the osmotic filter and reagent tanks, bypass electromagnetic liquid valves for the osmotic filter (16) and reagent tanks (20), manual water drain valve (25), liquid solenoid valve for drainage of the sterilization chamber and electromagnetic liquid valve for drainage of osmotic concentrate filter. The switching and control unit is made in the form of a microcontroller with a control program with a touch screen connected to it. The data inputs of the data output module are connected to the microcontroller, and electromagnetic liquid valves are connected to each output channel of the data output module.EFFECT: improved quality of sterilization.1 cl, 4 dwg

Description

The invention relates to medical equipment, namely to medical devices used for washing in a liquid medium (pre-sterilization cleaning) followed by ozone sterilization in the air of reusable surgical instruments and implants, rubber products, metal, plastic and glass utensils, made of chemically stable compounds , including complex shapes with semi-closed cavities, extended channels.

There are various installations that provide pre-sterilization cleaning or sterilization of medical implants and instruments based on physical and chemical methods. The main purpose of pre-sterilization cleaning is to remove protein, fat, mechanical contaminants and drug residues from medical devices to be sterilized, including residues of detergents, to free the internal and external surfaces of medical devices to be sterilized from microorganisms. The main purpose of sterilization is to kill all pathogenic and non-pathogenic microorganisms on medical devices subject to sterilization, including their spore forms, as well as viruses.

Known equipment for ultrasonic processing of medical instruments, as an example, a group of ultrasonic baths "Sapphire" of different capacity and power (https://www.sapphire.ru/vcd-501/catalog.html). It is possible to carry out pre-sterilization cleaning, as a stage of cleaning from visible and hidden contaminants, in a semi-manual mode, when rinsing with distilled water is required. Sterilization of instrumentation in such devices is impossible due to the design features - an open circuit for the needs of surgery and dentistry.

A device for ultrasonic cleaning is known (RU 2184625), which can be used for cleaning medical instruments. The device contains a bath with a liquid medium and a container for objects to be cleaned located in it, in the lid of which an ultrasonic piezoelectric emitter is built, connected to a metal emitting plate in contact with a liquid medium and a master oscillator with control units and control over the level of the working fluid in the bath. This device can also be used for pre-sterilization preparation. However, the device does not provide high-quality cleaning of complex medical instruments and medical implants.

Historically, the first type of sterilization device was a device based on the principle of heat treatment. An example is dry heat ovens, for example, the ST-IK RELMA-3S sterilizer or the ST-IK-MAI portable sterilizer (https://relma-gc.com/sterilizer.html), which can be used in surgical and dental practice. The main disadvantage of these sterilization devices is the negative effect on metal, plastic, rubber products, leading to accelerated aging, a decrease in the technical and external characteristics of the sterilized instruments and to early withdrawal from service.

The next most common are sterilization devices based on high pressure and temperature of water vapor - steam sterilization chambers. An example is the IcanClave STE-8 vacuum dryer. The devices work with increased pressure, and as practice has shown, they are quite effective and economical. The negative properties of the devices are the unsafe operation with them for the operating personnel, the need to use specialized storage devices, strict requirements for the technological process, the preservation of high humidity in the container with the tools, which can lead to corrosion of the tools, the preservation of relatively high operating temperatures, which ultimately leads to increased destruction of plastic products and changes in the crystal lattice of metal tools and, accordingly, their destruction and premature wear of loaded mechanical units and cutting edges of the toolbox.

Known devices for sterilization with ethylene oxide and formaldehyde, (RU 2538681) in which the gaseous medium of an antiseptic preparation is used, the main disadvantage is the contamination of instruments with toxic antiseptic vapors, which excludes the possibility of using this technique in sterilizing medical implants, and is also not safe for operating personnel.

Known installation for sterilization of medical and laboratory instruments (RU 2242995), developed by Sistema-Service LLC (Kaliningrad), provides sterilization with an ozone-air mixture. The disadvantages of the device are the complicated design of the sterilization chamber and the lack of quality control of sterilization.

Known combined systems for infrared or ultraviolet sterilization of instrumentation using antiseptic aerosols, for example, a device for disinfection and sterilization of objects (RU 2296585). The device contains a chamber with an inner surface that reflects ultraviolet radiation, with pulsed ultraviolet lamps placed inside the chamber, which are placed in quartz tubes and arranged in rows of at least two lamps in each, mesh trays for processed objects, a power supply unit connected by high-voltage conductors with pulsed ultraviolet lamps , an automation and control unit, configured to set the repetition time of high-voltage pulses from the power supply unit, a device for spraying an antiseptic substance. The disadvantages of such devices are the impossibility of cleaning hidden contaminants, the consumption of an expensive antiseptic and the lack of surface treatment located directly on the tray of the sterilization chamber, as well as a high danger for the operating personnel.

The closest in terms of the set of essential features is a multifunctional ozone sterilizer (RU 2700919), taken as a prototype. The multifunctional ozone sterilizer contains a sterilization chamber, a power supply unit, a switching and control unit, an ozonizer unit, an air circulation pump unit, an ozone destructor unit, additionally equipped with a unit of ultrasonic emitters, a unit of liquid pumps, a unit of liquid containers, a unit of liquid filters, a unit of liquid level sensors in the sterilization chamber, a block of electrodes for measuring the redox potential, a block of ozone concentration sensors, a block of sterilization chamber lock sensors, which includes infrared sensors and lifters of the sterilization chamber lid, and the switching and control unit has a display and a built-in microcontroller with a control program, a block air circulation pumps are equipped with air heaters with air temperature sensors.

The advantage of the prototype is the ability to carry out pre-sterilization cleaning and sterilization of medical instruments and products in an automated mode, with the shortest possible time and minimum cost due to the use of the simplest means of pre-sterilization cleaning.

The disadvantages of the known device are:

- the need for manual periodic replacement of the solution with a detergent to carry out pre-sterilization cleaning;

- the need for frequent replacement of the filter for mechanical cleaning of a solution with a detergent, due to its constant filling with residues of protein, fat, mechanical impurities and drug residues, as well as chemical compounds from the detergent solution;

- the lack of the possibility of processing the instruments with distilled water to reduce the alkalinity of the surfaces of the instruments from the detergent.

The problem to be solved by the invention is to create an easy-to-use and maintain multifunctional ozone sterilizer, which provides an automatic full cycle of pre-sterilization treatment using ultrasound and sterilization of medical instruments and implants using ozone and with automatic quality control of sterilization, storage of medical instruments and implants poste restante.

The technical result from the implementation of the proposed technical solution is to improve the quality of sterilization due to a fully automatic cycle of pre-sterilization cleaning, including automatic preparation of a solution for pre-sterilization cleaning, sonication and washing in distilled water, and sterilization in liquid and gaseous media, with automatic control of the duration of the sterilization process , control of quantitative indicators of the sterilization process: the concentration of ozone in the air and the value of the redox potential of the solution for pre-sterilization cleaning, and remote access to the sterilization chamber.

The technical result of the invention is achieved due to the fact that a multifunctional ozone sterilizer containing power supplies, a switching and control unit, an ultrasonic generator with an emitter, liquid level sensors, an ozone generator, an air compressor, an air heater with a temperature sensor, redox sensors, sensors ozone concentration, a linear actuator with a position sensor, infrared sensors, a sterilization chamber, an ozone destructor, while the switching and control unit is made in the form of a microcontroller with a control program with a touch screen connected to it, additionally equipped with a data output module, an osmotic filter, a container for a reagent , manual valve for water supply, solenoid valves for inlet and outlet of the osmotic filter and reagent reservoir, bypass solenoid valves for the osmotic filter and reservoir for reagent, manual valve for draining water, electromagnetic a liquid valve for draining the sterilization chamber, an electromagnetic liquid valve for draining the osmotic filter concentrate, while the data inputs of the data output module are connected to the microcontroller of the switching and control unit, and electromagnetic liquid valves are connected to each output channel of the data output module; the manual water supply valve, the liquid solenoid valve of the osmotic filter inlet, the osmotic filter, the electromagnetic liquid valve of the osmotic filter outlet, the electromagnetic liquid valve of the reagent reservoir inlet, the reagent reservoir, the solenoid liquid valve of the outlet of the reagent reservoir, the inlet for filling liquid into the sterilization chamber, and additionally the inlet of the liquid solenoid valve of the osmotic filter inlet and the outlet of the electromagnetic liquid valve of the osmotic filter outlet are connected through the bypass valve of the osmotic filter, the inlet of the liquid solenoid valve of the reagent reservoir inlet and the outlet of the electromagnetic liquid valve of the reagent reservoir outlet are connected through the bypass valve of the reservoir for reagent, a manual valve for draining water, an electromagnetic liquid valve for draining the sterilization chamber, an outlet for draining liquid from the sterilization chamber are also connected in series measures, and additionally between the manual valve for draining the water and the solenoid valve for draining the sterilization chamber, an electromagnetic liquid valve for draining the osmotic filter concentrate and the outlet for draining the osmotic filter concentrate are connected in series.

1) Supply of the multifunctional ozone sterilizer with the following devices:

1.1) an osmotic filter;

1.2) a container for a reagent;

1.3) a manual water supply valve;

1.4) electromagnetic liquid valves of the inlet and outlet of the osmotic filter and the container for the reagent;

1.5) by-pass electromagnetic liquid valves of the osmotic filter and reagent tank;

and interconnected in accordance with the above information provides filling the sterilization chamber with liquid in three sequential automated modes:

Mode 1 - filling the sterilization chamber with tap water, for rinsing from water-soluble organic and inorganic compounds, as well as particles mechanically washed off by water.

This mode is carried out when tap water passes through the manual water supply valve, through the switched on bypass electromagnetic liquid valve of the osmotic filter and through the switched on bypass electromagnetic liquid valve of the reagent tank.

Mode 2.1 - filling the sterilization chamber with a solution for pre-sterilization treatment and generation of ultrasound to remove protein, fat, mechanical contaminants and drug residues from medical devices to be sterilized. Before loading the instrumentation into the container for the reagent, the required amount for a given volume of the sterilization chamber of the means for pre-sterilization processing is poured or poured in accordance with the approved methodological instructions MU-287-113 of 12/30/1998.

Or

Mode 2.2 - filling the sterilization chamber with a solution and sodium chloride in the concentration of a physiological solution, saturating the solution with an air-ozone mixture until the ORP reaches 650 mV according to the ORP redox potential sensors, after which ultrasound is generated for 30 seconds and the liquid is degassed in order to form the effect of microcavitation and the release of dissolved reactive oxygen species in complex and closed nodes of the processed instrumentation, which creates the effect of additional processing and pushing out of the cavities and channels of the instrumentation residual particles of pollution, destroyed components of cells of microorganisms, after which the process of saturation with the ozone-air mixture is cyclically repeated. Mode 2.2 is intended for sterilization of heavily contaminated instruments in a liquid medium.

Modes 2.1 and 2.2 are carried out when tap water passes through the manual water supply valve, through the switched on bypass electromagnetic liquid valve of the osmotic filter, through the switched on electromagnetic liquid valve of the reagent container inlet, through the reagent container, through the switched on electromagnetic liquid valve of the reagent container outlet.

Mode 3 - filling the sterilization chamber with distilled water to remove residues of detergents and other mechanical residues in accordance with the approved methodological instructions MU-287-113 of 12/30/1998.

This mode is carried out when tap water passes through the manual water supply valve, through the switched on electromagnetic liquid valve of the osmotic filter inlet, through the osmotic filter, through the switched on electromagnetic liquid valve of the osmotic filter outlet, through the switched on bypass electromagnetic liquid valve of the reagent tank.

A manual water supply valve is used to connect a multifunctional ozone sterilizer to a stationary cold drinking water supply system, with the possibility of shutting it off in emergency mode, and, if necessary, moving it.

Thus, two problems are solved - there is no need for manual periodic filling of a solution with a detergent for pre-sterilization cleaning and automatic processing of instruments with distilled water is carried out.

2) Supply of the multifunctional ozone sterilizer with the following devices:

2.1) a manual water drain valve;

2.2) an electromagnetic liquid valve for draining the sterilization chamber;

2.3) an electromagnetic liquid valve for draining the osmotic filter concentrate;

and interconnected in accordance with the above information, provides automated drainage of liquid from the sterilization chamber (mode 1-3), as well as drainage of the osmotic filter concentrate after filling the sterilization chamber with distilled water (mode 3).

The manual water drain valve is used to connect the multifunctional ozone sterilizer to a stationary sewage water supply, with the possibility of turning it off in emergency mode, and, if necessary, moving it.

Thus, two problems are solved - there is no need for manual periodic drainage of the solution with a detergent to carry out pre-sterilization cleaning and there is no need to re-filter the solution for pre-sterilization treatment, and, therefore, the need for both the mechanical cleaning filter itself and its periodic replacement.

3) Supply of a multifunctional ozone sterilizer with a data output module, which is connected by data inputs to the microcontroller of the switching and control unit, and electromagnetic liquid valves are connected to each output channel of the data output module, provides automated control of all electromagnetic liquid valves to perform all modes of filling and draining liquid from sterilization chamber.

The rest of the technical result in the form of sterilization, with automatic control of the duration of the sterilization process, control of quantitative indicators of the sterilization process: the concentration of ozone in the air and the value of the redox potential of the working solution and remote access to the sterilization chamber is achieved due to the components available in the prototype.

Thus, the proposed multifunctional ozone sterilizer is easy to operate and maintain, allows for a fully automated mode of pre-sterilization cleaning and sterilization, with automatic control of the sterilization process, which improves the quality of sterilization of medical instruments and implants.

FIG. 1 is a block diagram of the electrical connections of the multifunctional ozone sterilizer.

FIG. 2 shows a block diagram of the liquid piping connections of a multifunctional ozone sterilizer.

FIG. 3 shows a block diagram of the air piping connections of the multifunctional ozone sterilizer.

FIG. 4 shows a layout sketch of a multifunctional ozone sterilizer.

Multifunctional ozone sterilizer in accordance with the block diagram of electrical connections (Fig. 1) contains: power supplies 1, switching and control unit 2, ultrasonic generator with emitter 3, liquid level sensors 4, ozone generator 5, air compressor 6, air heater with temperature sensor 7, redox sensors 8, ozone concentration sensors 9, linear actuator with position sensors 10, infrared sensors 11, data output module 12, electromagnetic liquid valves 14, 16, 17, 18, 20, 21, 23, 24 (in more detail in Fig. 2).

The power supply output of the power supplies 1 is connected to the power input of the switching and control unit 2. The power outputs of the switching and control unit 2 are connected to the power input of the ultrasonic generator with emitter 3, ozone generator 5, air compressor 6, air heater with temperature sensor 7, ozone concentration sensors 9, linear actuator with position sensors 10, infrared sensors 11, data output module 12.

Data outputs of liquid level sensors 4, air heater with temperature sensor 7, oxidation-reduction potential sensors 8, ozone concentration sensors 9, linear actuator with position sensors 10, infrared sensors 11 are connected to data inputs of the switching and control unit 2. Data output of the unit switching and control 2 is connected to the data input of the data output module 12, each data output channel is connected to the electromagnetic fluid valves 14, 16, 17, 18, 20, 21, 23, 24.

A multifunctional ozone sterilizer in accordance with the block diagram of liquid pipelines (Fig. 2) contains: a manual water supply valve 13, a liquid solenoid valve for an osmotic filter inlet 14, an osmotic filter 15, a bypass electromagnetic liquid valve for an osmotic filter 16, a liquid electromagnetic valve for an osmotic filter outlet 17, liquid solenoid valve for reagent container inlet 18, container for reagent 19, bypass electromagnetic liquid valve for container for reagent 20, electromagnetic liquid valve for outlet of container for reagent 21, sterilization chamber 22, solenoid valve for draining the sterilization chamber 23, electromagnetic liquid drain valve concentrate osmotic filter 24, manual water drain valve 25. Connected to each other in accordance with the claims.

A multifunctional ozone sterilizer in accordance with the block diagram of air pipelines (Fig. 3) contains an ozone generator 5, an air compressor 6, an air heater with a temperature sensor 7, a sterilization chamber 22, an ozone destructor 26. The inlets of the air compressor 6 are connected to an external air intake ( or oxygen supply) and the outlet of the sterilization chamber 22, the outlets of the air compressor 6 are connected to the inlet of the air heater with the temperature sensor 7 and the inlet of the ozone destructor 26. The outlet of the ozone destructor 26 is connected to the external air outlet. The outlet of the air heater with a temperature sensor 7 is connected to the inlet of the ozone generator 5, the outlet of the ozone generator 5 is connected to the inlet of the sterilization chamber 22.

Figure 4 shows a layout sketch of a multifunctional ozone sterilizer indicating the listed positions 1, 2, 3, 5, 6, 10, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 25 (displayable).

The technical implementation of the claimed technical solution is carried out using finished components and devices (for example):

1) power supplies 1 - power supplies RS-25-24 (24V, 1.05A, 25W) and RS-75-12 (12V, 6A, 72W) f. Mean well;

2) switching and control unit 2 - Gigabyte GA-E2500N motherboard and 5inch HDMI LCD (B) display with resistive touch panel f. Waveshare;

3) ultrasonic generator with emitter 3 - submersible ultrasonic emitter PSB-375x300.600-35 with generator f. PSB-Hals;

4) liquid level sensors 4 - float level sensors KLS26-MR-L5 0.5F / 300VAC;

5) ozone generator 5 - ozone generator CH-PTF7A f. CCAWJH;

6) air compressor 6 - air compressor ACO-208 f. Hailea;

7) air heater with temperature sensor 7 - heating element 4-pin f. Lukey in the case;

8) oxidation-reduction potential sensors 8 - ORP-101 sensors f. Yieryi;

9) sensors for ozone concentration; 9 - ozone sensors MQ131;

10) linear actuator with position sensors; 10 - linear actuator HTA-150-300-400;

11) infrared sensors 11 - infrared sensors KY-032;

12) data output module 12 - discrete output module ADAM-4056SO-AE f. Advantech;

13) electromagnetic liquid valves 14, 16, 17, 18, 20, 21, 23, 24 - solenoid valves G1 / 2 Electric Solenoid Valve f. Seeed Studio;

14) manual valve for water supply 13 - ball valve G1 / 2 '' HP / HP (art. 17298392) f. Equation;

15) osmotic filter 15 - osmotic filter Expert Osmos Stream MOD620 f. Prio without mineralizer module;

16) container for reagent 19 - container of the required volume made of stainless steel with appropriate fittings;

17) sterilization chamber 22 - a container of the required volume made of stainless steel with appropriate fittings;

18) manual water drain valve 25 - ball valve G1 / 2 '' HP / HP (art. 17298392) f. Equation;

19) ozone destructor 26 - a container with medical activated carbon in tablets.

The multifunctional ozone sterilizer operates in several modes: pre-sterilization cleaning (in a liquid medium) of instruments, sterilization (in a gaseous medium) of instruments, sterilization (in a liquid medium), conservation, full sterilization cycle, washing and drying. The required operating mode is selected depending on the desired result.

1. Pre-sterilization cleaning in a liquid medium.

Before operating in this mode, the required amount of means for pre-sterilization cleaning is poured into the container for the reagent (for example, Lotus, Astra, Progress) or (for example, Peroximed, Russia) in accordance with the methodological instructions MU-287-113 of 12/30/1998. The power supplies 1 are switched on, after which the switching and control unit 2 is turned on, after contactless action on the infrared sensors 11, the linear actuator with position sensors 10 is activated, the lid of the sterilization chamber 22 is opened, the surgical instruments or implants are loaded into the sterilization chamber 22, after contactless influence on infrared sensors 11, a linear actuator with position sensors 10 is activated, and the lid of the sterilization chamber 22 is closed, with the help of its control elements the “Pre-sterilization cleaning” mode is selected on the touch display, and the mode parameters are set: recovery potential, air temperature after washing, drying time. After the start of the mode, the switching and control unit 2 starts the countdown, checks the closure of the lid of the sterilization chamber 22, closes the lid, if necessary, and blocks the linear actuator with position sensors 10. The switching and control unit 2 turns on the electromagnetic liquid valves 16 and 20 (hereinafter using the data output module 12) and fills the sterilization chamber using the liquid level sensors 4, after filling the chamber, turns off the electromagnetic liquid valves 16 and 20, turns on the electromagnetic liquid valve 23 and drains the sterilization chamber using the liquid level sensors 4, turns off the electromagnetic liquid valve 23 , the cycle is repeated a specified number of times. Further, the switching and control unit 2 turns on the electromagnetic liquid valves 16, 18, 21 and fills the sterilization chamber according to the liquid level sensors 4 with the resulting solution of means for pre-sterilization cleaning when water passes through the reagent tank 19, turns on the ultrasonic generator 3 and maintains a predetermined time, turns off ultrasonic generator 3, the magnitude of the redox potential is monitored by the redox sensors 8, in case of deviations from the set values, the pre-sterilization cleaning is stopped, the electromagnetic liquid valves 16, 18, 21 are turned off, the electromagnetic liquid valve 23 is turned on and the sterilization chamber is drained by liquid level sensors 4, turns off the electromagnetic liquid valve 23. Further, the switching and control unit 2 turns on the electromagnetic liquid valves 14, 17, 20, 24 and fills the sterilization chamber by the liquid level sensors with distilled water from the osmotic filter 15, turns off the electromagnetic liquid valves 14, 17, 20, 24, turns on the electromagnetic liquid valve 23 and drains the sterilization chamber using the liquid level sensors 4, turns off the electromagnetic liquid valve 23, the cycle repeats a predetermined number of times. Further, the switching and control unit 2 includes an air compressor 6 and an air heater with temperature sensors 7, air is circulated in the sterilization chamber 22 with control of the air temperature with the release of moist air outside the multifunctional ozone sterilizer. The mode ends after reaching the set drying time by switching off the air compressor 6 and the air heater with temperature sensors 7.

2. Sterilization in a gas atmosphere.

The power supplies 1 are switched on, after which the switching and control unit 2 is turned on, after contactless action on the infrared sensors 11, the linear actuator with position sensors 10 is activated, the lid of the sterilization chamber 22 is opened, the surgical instruments or implants are loaded into the sterilization chamber 22, after contactless Infrared sensors 11, a linear actuator with position sensors 10 is activated, and the lid of the sterilization chamber 22 is closed, or sterilization of the loaded instruments after pre-sterilization cleaning is started, using the control elements on the touch screen, select the “Sterilization (gas environment)” mode, and set the parameters mode: duration of the process, ozone concentration, temperature of the gas environment. After the start of the mode, the switching and control unit 2 starts the countdown, checks the closure of the lid of the sterilization chamber 22, closes the lid, if necessary, and blocks the linear actuator with position sensors 10. The switching and control unit 2 turns on the ozone generator 5, air compressor 6, an air heater with a temperature sensor 7, measures the ozone concentration using ozone concentration sensors 9, if the preset values are not reached, it stops sterilization, air circulates with ozone in the sterilization chamber 22. The mode ends after the preset sterilization time is reached, by turning off the ozone generator 5, air compressor 6, air heater with temperature sensors 7, air discharge with ozone from the chamber through ozone destructor 26 for a predetermined time.

3. Sterilization in a liquid medium.

The power supplies 1 are switched on, after which the switching and control unit 2 is turned on, after contactless action on the infrared sensors 11, the linear actuator with position sensors 10 is activated, the lid of the sterilization chamber 22 is opened, the surgical instruments or implants are loaded into the sterilization chamber 22, after contactless Infrared sensors 11, a linear actuator with position sensors 10 is activated, and the lid of the sterilization chamber 22 is closed, or the sterilization of the loaded instruments after pre-sterilization cleaning is started, using the control elements on the touch screen, the “Sterilization (liquid medium)” mode is selected, and the parameters are set mode: duration of the process, the value of the redox potential, the temperature of the gas environment. After the start of the mode, the switching and control unit 2 starts the countdown, checks the closure of the lid of the sterilization chamber 22, closes the lid, if necessary, and blocks the linear actuator with position sensors 10. The switching and control unit 2 turns on the electromagnetic liquid valves 16 and 20 (hereinafter using the data output module 12) and fills the sterilization chamber according to the liquid level sensors 4, after filling the chamber, turns off the electromagnetic liquid valves 16 and 20. Further, the switching and control unit 2 turns on the electromagnetic liquid valves 16, 18, 21 and fills the sterilization chamber according to liquid level sensors 4 with the resulting sodium chloride solution when water passes through the container for the reagent 19, the switching and control unit 2 turns on the ozone generator 5, the air compressor 6, measures the ozone concentration using ozone concentration sensors 9, if the set values are not reached, it stops sterilization , air circulation with ozone is carried out in the sterilization chamber 22, turns on the ultrasonic generator with emitter 3 and maintains a predetermined time, turns off the ultrasonic generator with emitter 3, monitors the magnitude of the redox potential using the redox sensors 8, in case of deviations from the set values, it is carried out stop, then turns off the electromagnetic liquid valves 16, 18, 21, turns on the electromagnetic liquid valve 23 and drains the sterilization chamber using the liquid level sensors 4, turns off the electromagnetic liquid valve 23. The mode ends after reaching the specified sterilization time, turning on the electromagnetic liquid valve 23 and performing draining the liquid volume of the sterilization chamber using liquid level sensors 4, turning off the electromagnetic liquid valve 23, turning off the ozone generator 5, air compressor 6, exhausting air with ozone from chambers through the ozone destructor 26 for a predetermined time.

4. Conservation.

The mode is carried out after sterilization and periodic switching on of the ozone generator 5 and the air compressor 6 with the control of the ozone concentration by the ozone concentration sensors 9 to ensure the specified concentration of conservation in the on-demand mode.

5. Full cycle

The full cycle includes loading surgical instruments and implants into the sterilization chamber, loading the agent for pre-sterilization cleaning into the reagent container, and sequential automatic execution of cycles without removing the instruments according to the following scheme “Pre-sterilization cleaning in a liquid medium” → “Sterilization in a gas environment” or “Sterilization in a liquid medium "→" Preservation ".

6. Washing and drying.

The mode is similar to pre-sterilization cleaning in a liquid medium, but rinsing is carried out not with distilled water, but with tap water.

Thus, the multifunctional ozone sterilizer according to the claimed technical solution allows an automatic cycle of pre-sterilization cleaning, including automatic preparation of a solution for pre-sterilization cleaning, sonication and rinsing in distilled water, and sterilization, with automatic control of the duration of the sterilization process, control of the quantitative indicators of the sterilization process: concentration of ozone in the air and the value of the redox potential of the solution for pre-sterilization cleaning, and remote access to the sterilization chamber, which improves the quality of the complete sterilization cycle, reduces labor intensity and operating costs.

Claims (1)

Multifunctional ozone sterilizer containing power supplies, switching and control unit, ultrasonic generator with emitter, liquid level sensors, ozone generator, air compressor, air heater with temperature sensor, redox sensors, ozone concentration sensors, linear actuator with position sensor, infrared sensors, sterilization chamber, ozone destructor, while the switching and control unit is made in the form of a microcontroller with a control program with a touch display connected to it, characterized in that it is additionally equipped with a data output module, an osmotic filter, a container for a reagent, a manual water supply valve , liquid solenoid valves for the inlet and outlet of the osmotic filter and the reagent container, bypass electromagnetic liquid valves for the osmotic filter and the reagent container, a manual water drain valve, an electromagnetic liquid drain valve for the sterilization the chamber, an electromagnetic liquid valve for draining the osmotic filter concentrate, while the data inputs of the data output module are connected to the microcontroller of the switching and control unit, and electromagnetic liquid valves are connected to each output channel of the data output module; the manual water supply valve, the liquid solenoid valve of the osmotic filter inlet, the osmotic filter, the electromagnetic liquid valve of the osmotic filter outlet, the electromagnetic liquid valve of the reagent reservoir inlet, the reagent reservoir, the solenoid liquid valve of the outlet of the reagent reservoir, the inlet for filling liquid into the sterilization chamber, and additionally the inlet of the liquid solenoid valve of the osmotic filter inlet and the outlet of the electromagnetic liquid valve of the osmotic filter outlet are connected through the bypass valve of the osmotic filter, the inlet of the liquid solenoid valve of the reagent reservoir inlet and the outlet of the electromagnetic liquid valve of the reagent reservoir outlet are connected through the bypass valve of the reservoir for reagent, a manual valve for draining water, an electromagnetic liquid valve for draining the sterilization chamber, an outlet for draining liquid from the sterilization chamber are also connected in series measures, and additionally, between the manual valve for draining the water and the solenoid valve for draining the sterilization chamber, an electromagnetic liquid valve for draining the osmotic filter concentrate and the outlet for draining the osmotic filter concentrate are connected in series.

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