Ozone generating device
By designing an ozone generator that outputs ozone using both air and oxygen sources, the problem of time-consuming disinfection and sterilization on ships at sea and damage to equipment has been solved. This enables rapid and efficient disinfection and sterilization of medical devices, meeting the sterilization needs of long voyages and emergency situations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE THIRD AFFILIATED HOSPITAL OF PLA NAVAL MEDICAL UNIVERSITY
- Filing Date
- 2025-06-20
- Publication Date
- 2026-05-22
AI Technical Summary
Existing technologies for sterilizing medical devices on ships at sea are time-consuming, cause significant damage to the devices, and lack rapid and reliable monitoring methods, making it difficult to meet the high-efficiency sterilization requirements for long voyages and emergency situations.
Design an ozone generator that outputs ozone using both air and oxygen sources. It generates highly efficient ozone through dielectric barrier discharge and combines it with sterilization bags to achieve rapid and efficient disinfection and sterilization. The device includes an oxygen generator, control valve, refrigerated dryer, air compressor, ozone generator, and ozone output port, and can adjust the ozone concentration as needed.
It achieves rapid and efficient disinfection and sterilization of medical devices, meeting the sterilization supply needs of multiple batches of surgical instruments during long-distance voyages and emergency situations. It is reliable and avoids instrument damage.
Smart Images
Figure CN224266299U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of devices for disinfection and sterilization of medical machinery, and in particular to an ozone generator for generating ozone to disinfect and sterilize medical machinery. Background Technology
[0002] Large offshore vessels equipped with medical units (including dedicated medical treatment platforms such as hospital ships) are equipped with various types of high-temperature steam sterilization devices, dry heat sterilization devices, and dedicated large-capacity equipment to sterilize medical devices, depending on the vessel's service status. Dry heat sterilization is the primary method: it uses high temperatures to sterilize medical devices without the need for water or chemical reagents, effectively eliminating various microorganisms, but it takes a long time, generally 2-4 hours. Advantages: excellent sterilization effect, no chemical reagents required. Disadvantages: long sterilization time, frequent use of devices can cause damage. When ship conditions permit, moist heat sterilization equipment can also be installed: it uses steam to sterilize medical devices, requiring high-pressure steam to thoroughly kill bacterial spores, but the sterilization time is longer, generally 15-30 minutes. Advantages: excellent sterilization effect, shorter sterilization time compared to dry heat sterilization. Disadvantages: requires high-pressure steam, frequent use of medical devices can cause damage.
[0003] Medical devices required for reuse and sterilization in maritime medical rescue typically include, but are not limited to, the following: surgical instruments: such as scalpels, forceps, and clamps; endoscopes: such as gastroscopes and bronchoscopes; monitor accessories: such as ventilators and electrocardiographs, which are in contact with the human body and require sterilization before reuse; infusion sets: such as intravenous infusion sets and syringes, which are usually for single use but may be reused in special circumstances or after sterilization; and dental instruments: such as dental forceps and oral cleaning instruments.
[0004] Trauma, surgical emergencies, and oral diseases are common and frequently occurring illnesses during long voyages. The safety of reusable medical supplies directly impacts the quality of surgery and treatment outcomes. Therefore, the quality of cleaning, disinfection, and sterilization of medical instruments is directly related to the health of the crew and should be given high priority in shipboard medical support. The diagnosis and treatment of these diseases typically require a large number of sterile medical supplies, especially irreplaceable surgical instruments and dental instruments, whose effectiveness directly affects the health of the crew. The ability to professionally and systematically clean, disinfect, sterilize, and store medical instruments, as well as to safely and efficiently provide reusable medical supplies during long voyages, plays a crucial role in improving the ship's medical rescue and support capabilities.
[0005] Research and novelty searches revealed a wealth of international research on the disinfection and sterilization of medical supplies. This research primarily focuses on cleaning methods and the use of cleaning agents, lubricants, and rust removers, as well as packaging technology for terminally sterilized items and sterilization monitoring. A series of standards and guidelines related to disinfection and infection control have been developed, along with various cleaning equipment such as ultrasonic cleaners, negative pressure cleaners, and steam cleaners to improve cleaning quality. However, there are few reports on related research and innovative applications in shipbuilding.
[0006] High-temperature sterilization technology is not suitable for most precision, reusable medical devices and consumables. Furthermore, while large hospitals and large-scale medical treatment platforms can carry a certain amount of disposable sterile medical supplies, metal medical devices still require a sterilization supply unit. Due to various limitations, choosing a sterilization method that is low-cost, rapid, reliable, and has comprehensive monitoring capabilities is crucial in emergency response. Utility Model Content
[0007] This invention addresses the problems and shortcomings of existing technologies by providing a novel ozone generator for sterilizing medical equipment.
[0008] The present invention solves the above-mentioned technical problems through the following technical solution:
[0009] This utility model provides an ozone generating device, characterized in that it includes an oxygen generator, control valve A, control valve B, a refrigerated dryer, an ozone production module, and an ozone output port. The ozone production module includes an air compressor and an ozone generator.
[0010] The oxygen generator has an air inlet and an outlet connected to one end of a control valve A. The other end of control valve A is connected to the inlet of a refrigerated dryer. One end of control valve B has an air inlet and the other end is connected to the inlet of the refrigerated dryer. The outlet of the refrigerated dryer is connected to the inlet of an air compressor. The outlet of the air compressor is connected to the inlet of an ozone generator. The outlet of the ozone generator is connected to one end of an ozone output port. An ozone concentration analyzer is connected to the pipeline between the outlet of the ozone generator and the ozone output port. A switch valve connected to a foot switch is also provided. The other end of the ozone output port is used to connect to the air inlet of a sterilization bag. The oxygen generator, control valve A, refrigerated dryer, ozone generation module, and ozone output port constitute an oxygen source ozone output mode. The control valve B, refrigerated dryer, ozone generation module, and ozone output port constitute an air source ozone output mode.
[0011] The positive and progressive effects of this utility model are as follows:
[0012] This invention utilizes ozone sterilization technology and designs an ozone generator that can efficiently sterilize medical devices with reliable performance, meeting the sterilization needs of multiple batches of surgical instruments during long-distance voyages and emergency situations.
[0013] This invention allows for the selection of two different ozone output modes—air source and oxygen source—to meet varying ozone concentration requirements under different usage conditions. The ozone concentration produced by the oxygen source ozone output mode is higher than that produced by the air source ozone output mode. When performing general disinfection of medical devices, the air source ozone output mode is used to produce a low concentration of ozone, while when sterilizing medical devices, the oxygen source ozone output mode is used to produce a high concentration of ozone. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the ozone generator according to a preferred embodiment of the present invention.
[0015] Figure 2 This is a schematic diagram of the ozone generator according to a preferred embodiment of the present invention.
[0016] Figure 3 This is a schematic diagram of the structure of the sterilization bag according to a preferred embodiment of the present invention. Detailed Implementation
[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0018] like Figure 1-3 As shown, this embodiment provides an ozone generating device, which includes an oxygen generator 1, a manual control valve A2, a manual control valve B 3, a refrigerated dryer 4, an air compressor 5, an ozone generator 6, and an ozone output port 7. The air compressor 5 and the ozone generator 6 constitute an ozone production module.
[0019] The oxygen generator 1 has an air inlet and an outlet connected to one end of a manual control valve A2. The other end of manual control valve A2 is connected to the inlet of the refrigerated dryer 4. One end of manual control valve B3 has an air inlet and the other end is connected to the inlet of the refrigerated dryer 4. The outlet of the refrigerated dryer 4 is connected to the inlet of the air compressor 5. The outlet of the air compressor 5 is connected to the inlet of the ozone generator 6. The outlet of the ozone generator 6 is connected to one end of an ozone output port 7. An ozone concentration analyzer 8 is connected to the pipeline between the outlet of the ozone generator 6 and the ozone output port 7. A switch valve 9 connected to a foot switch is also provided. The other end of the ozone output port 7 is connected to the air inlet of the sterilization bag 10.
[0020] Oxygen generator 1, manual control valve A2, refrigerated dryer 4, air compressor 5, ozone generator 6, and ozone output port 7 constitute an oxygen source ozone output mode. Manual control valve B3, refrigerated dryer 4, air compressor 5, ozone generator 6, and ozone output port 7 constitute an air source ozone output mode.
[0021] The gas source is configured as an air / oxygen dual-mode system. Air is directly compressed into the ozone generator 6 via air compressor 5, where ozone is produced from the air source. Specifically, manual control valve B3 is opened and manual control valve A2 is closed, allowing air compressor 5 to directly draw in air. After being cooled and dried by refrigerated dryer 4, the air is ionized under high voltage inside the ozone generator 6 to produce ozone. Since oxygen accounts for only 21% of the air, the ozone concentration produced is relatively low. Alternatively, oxygen and nitrogen can be separated by oxygen generator 1. The separated oxygen is high-purity oxygen with a concentration of over 90%. This high-purity oxygen is compressed into the ozone generator 6 via air compressor 5, where ozone is produced from the oxygen source. Specifically, manual control valve B3 is closed and manual control valve A2 is opened, allowing air compressor 5 to draw in the high-purity oxygen produced by oxygen generator 1. After being cooled and dried by refrigerated dryer 4, the oxygen is ionized under high voltage inside the ozone generator 6 to produce ozone. Since the oxygen entering the ozone generator 6 at this point is high-purity, the ozone concentration produced is higher.
[0022] The ozone generator 6 includes an ozone tube 61 (such as a quartz tube), an overheat protector 62, a cooling fan 63, and a control board 64. The inlet of the ozone tube 61 is connected to the outlet pipe of the air compressor 5, and the outlet is connected to one end of the ozone output port 7. The ozone tube 61 is equipped with an overheat protector 62 containing a thermistor. The cooling fan 63 is positioned facing the ozone tube 61. The control board 64 is equipped with a 220V input socket 641 for connecting to a 220V power supply. The control board 64 is electrically connected to the ozone tube 61 to provide high voltage to the ozone tube 61. The control board 64 is also electrically connected to a concentration adjustment potentiometer 642. The concentration adjustment potentiometer 642 is manually adjusted according to the ozone concentration detected by the ozone concentration analyzer 8. The control board 64 adjusts the high voltage provided to the ozone tube 61 based on the feedback from the concentration adjustment potentiometer 642, so that the actual ozone concentration reaches the preset ozone concentration. The control board 64 is electrically connected to the overheat protector 62 to realize the overheat protection of the ozone tube 61.
[0023] Ozone generator 6 generates high-purity ozone through high-voltage ionization of a quartz tube and maintains its performance through air cooling. Currently, the main methods for ozone generation include ultraviolet radiation, water electrolysis, and dielectric barrier discharge. Among these, ultraviolet radiation has low yield and high energy consumption, and the ultraviolet generators generally have short lifespans, making it economically unfeasible and impractical for industrial application. Water electrolysis also has relatively low energy efficiency and is not widely used in industry. Because the dielectric barrier discharge method produces ozone with relatively high yield and concentration, and is economical, it is currently the most widely used method for ozone generation. Therefore, this embodiment is based on the dielectric barrier discharge method for ozone generation.
[0024] It should be noted that: oxygen generator 1, manual control valve A2, manual control valve B3, refrigerated dryer 4, air compressor 5, ozone generator 6, ozone concentration analyzer 8, switch valve 9, and foot switch all adopt existing structures. This embodiment only utilizes these components and does not make any structural improvements to the components.
[0025] The sterilization bag 10 includes a bag body 101. One end of the bag body 101 has a zipper 102 at the sealing opening, and the other end of the bag body 101 has an air inlet 103 consisting of a one-way air inlet valve and an air outlet 104 consisting of a knob exhaust nozzle. The air outlet 104 is screwed with an air outlet cap (not shown in the figure). The other end of the bag body 101 also has a handle 105. The air inlet 103 and the air outlet 104 are located on opposite sides of the other end of the bag body 101, and the handle 105 is located between the air inlet 103 and the air outlet 104.
[0026] The vent cap and bag body 101 are a one-to-one matching set. First, screw the vent cap into the vent 104 and tighten it to ensure a tight seal. Then, put the medical device that needs to be sterilized into the sterilization bag 10 through the sealing opening. First, zip up the sealing opening 102, and then seal the sealing opening with a vacuum sealing machine.
[0027] In this embodiment, depending on the ozone concentration requirements of different usage scenarios, two different ozone output modes can be selected: air source and oxygen source. The ozone concentration produced by the oxygen source ozone output mode is higher than that produced by the air source ozone output mode. When the medical devices in the sterilization bag 10 need general disinfection, the air source ozone output mode can be used. The manual control valve B3 is manually opened, and the outside air passes through the refrigerated dryer 4, the air compressor 5, and the ozone generator 6 in sequence to produce low-concentration ozone. When the medical devices in the sterilization bag 10 need to be sterilized, the oxygen source ozone output mode can be used. The manual control valve A2 is manually opened, and the oxygen generator 1 separates high-purity oxygen from the input outside air. The high-purity oxygen passes through the refrigerated dryer 4, the air compressor 5, and the ozone generator 6 to produce high-concentration ozone.
[0028] Insert the air inlet 103 of the sterilization bag 10 into the ozone outlet 7, and manually press to keep the air inlet 103 and the ozone outlet 7 sealed to reduce ozone leakage. Step on the foot switch to open the switch valve 9, and the ozone outlet 7 will fill the sterilization bag with ozone. After it is full, first turn off the foot switch 9 and close the switch valve 9. After 5 seconds, remove the sterilization bag 10. Since the air inlet 103 of the sterilization bag 10 is a one-way air intake structure, there is no need to worry about ozone leakage from the air inlet.
[0029] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.
Claims
1. An ozone generator, characterized in that, It includes an oxygen generator, control valve A, control valve B, a refrigerated dryer, an ozone generation module, and an ozone output port. The ozone generation module includes an air compressor and an ozone generator. The oxygen generator has an air inlet and an outlet connected to one end of a control valve A. The other end of control valve A is connected to the inlet of a refrigerated dryer. One end of control valve B has an air inlet and the other end is connected to the inlet of the refrigerated dryer. The outlet of the refrigerated dryer is connected to the inlet of an air compressor. The outlet of the air compressor is connected to the inlet of an ozone generator. The outlet of the ozone generator is connected to one end of an ozone output port. An ozone concentration analyzer is connected to the pipeline between the outlet of the ozone generator and the ozone output port. A switch valve connected to a foot switch is also provided. The other end of the ozone output port is used to connect to the air inlet of a sterilization bag. The oxygen generator, control valve A, refrigerated dryer, ozone generation module, and ozone output port constitute an oxygen source ozone output mode. The control valve B, refrigerated dryer, ozone generation module, and ozone output port constitute an air source ozone output mode.
2. The ozone generator as described in claim 1, characterized in that, The ozone generator includes an ozone tube, an overheat protector, a cooling fan, and a control board. The inlet of the ozone tube is connected to the outlet pipe of the air compressor, and the outlet is connected to one end of the ozone output port. The ozone tube is equipped with an overheat protector containing a thermistor. The cooling fan faces the ozone tube. The control board is equipped with a 220V input socket for connecting a 220V power supply. The control board is electrically connected to the ozone tube to provide high voltage to the ozone tube. The control board is also electrically connected to a concentration adjustment potentiometer to adjust the high voltage provided to the ozone tube based on the feedback from the concentration adjustment potentiometer. The control board is electrically connected to the overheat protector for overheat protection of the ozone tube.
3. The ozone generator as described in claim 1, characterized in that, Both control valve A and control valve B are manually controlled valves.
4. The ozone generator as described in claim 1, characterized in that, The sterilization bag includes a bag body, a zipper at one end of the bag body, and an air inlet consisting of a one-way air inlet valve and an air outlet consisting of a knob exhaust nozzle at the other end of the bag body. The air outlet is screwed with an air outlet cap.
5. The ozone generator as described in claim 4, characterized in that, A handle is also provided at the other end of the bag.