Portable medical instrument sterilization device

Abstract

The utility model discloses portable medical instrument sterilization device including the shell of gap, install oxygen generator, refrigerated dryer, have air compressor and ozone generator's ozone preparation module, ozone concentration analyzer, electric cabinet, expose the switch valve of gap's vacuum sealing machine, electromagnetic valve no.

Description

Technical Field

[0001] This utility model relates to the technical field of sterilization devices for medical machinery, and in particular to a convenient sterilization device for medical devices. Background Technology

[0002] General medical institutions and hospitals typically use a combination of multiple sterilization methods and equipment for the disinfection and sterilization of medical devices. However, such equipment deployed within hospitals involves a wide variety of auxiliary equipment, stringent environmental requirements, and significant equipment size and energy consumption. Reusable medical devices are generally sterilized using high-temperature, high-pressure sterilization (HTSA) devices or low-temperature plasma devices. Medical institutions' sterilization supply departments often also employ ethylene oxide and radiation sterilization methods, further complicating the requirements for chemical substances and equipment. For some products, such as those made of special polymers, containing multiple layers of packaging, or with components that are difficult to sterilize using other methods, ethylene oxide sterilization is irreplaceable. Although ethylene oxide sterilization is an essential step in the manufacturing process of many medical devices, ethylene oxide can have negative impacts on people who come into contact with or are excessively exposed to it, and it can also cause environmental emissions problems.

[0003] Large maritime vessels in my country 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 for sterilizing 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: good sterilization effect, no chemical reagents required. Disadvantages: long 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 completely eliminate bacterial spores, but the sterilization time is longer, generally 15-30 minutes. Advantages: good sterilization effect, shorter time compared to dry heat sterilization. Disadvantages: the entire system requires a certain preparation time, and its sterilization efficiency is lower for small-batch, multi-round scenarios.

[0004] 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.

[0005] 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, the effectiveness of which 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, plays a crucial role in improving the ship's medical rescue and support capabilities during long voyages.

[0006] 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.

[0007] 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

[0008] This invention addresses the problems and shortcomings of existing technologies by providing a convenient medical device sterilization device.

[0009] The present invention solves the above-mentioned technical problems through the following technical solution:

[0010] This utility model provides a convenient medical device sterilization device, characterized in that it includes a shell with a notch, and an oxygen generator, a cold dryer, an ozone generation module containing an air compressor and an ozone generator, an ozone concentration analyzer, an electrical control box, a vacuum sealing machine with an exposed notch, a solenoid valve one, a solenoid valve two, a switching valve, a first three-way pipe and a second three-way pipe are installed inside the shell, and a touch screen and an ozone output port are embedded on the shell;

[0011] The oxygen generator's inlet pipe is connected to air. The oxygen generator's outlet, solenoid valve one, the first and second ports of the first three-way pipe, the refrigerated dryer, the air compressor, the ozone generator, the switching valve, the first and second ports of the second three-way pipe, and the ozone output port are sequentially connected to form an oxygen source ozone generation mode. One end of the solenoid valve two is connected to air. The other end of the solenoid valve two, the third and second ports of the first three-way pipe, the refrigerated dryer, the air compressor, the ozone generator, the switching valve, the first and second ports of the second three-way pipe, and the ozone output port are sequentially connected to form an air source ozone generation mode. The third port of the second three-way pipe is connected to an ozone concentration analyzer. The switching valve is connected to a foot switch located outside the casing. The other end of the ozone output port is used to connect to the air inlet of the sterilization bag containing the medical device. The touch screen, oxygen generator, solenoid valve one, solenoid valve two, refrigerated dryer, ozone generation module, and ozone concentration analyzer are all electrically connected to the electrical control box.

[0012] The positive and progressive effects of this utility model are as follows:

[0013] This invention designs an ozone disinfection and sterilization method. Starting from the optimization of ozone generation structure and the integration of medical device sterilization and sealing requirements, it designs a convenient integrated sterilization device suitable for multiple types of ships to meet the needs of long-term and emergency situations in diverse missions and for multiple batches of reusable metal medical devices.

[0014] Based on the different ozone concentration requirements of various applications, this invention designs two different modes: an oxygen source ozone generation mode and an air source ozone generation mode. The ozone concentration produced by the oxygen source ozone generation mode is higher than that produced by the air source ozone generation mode. When performing general disinfection of medical devices, the air source ozone generation mode is used to produce a low concentration of ozone, while when sterilizing medical devices, the oxygen source ozone generation mode is used to produce a high concentration of ozone. Attached Figure Description

[0015] Figure 1-4 This is a perspective view of a portable medical device sterilization device according to a preferred embodiment of the present invention.

[0016] Figure 5 This is a control principle diagram of a portable medical device sterilization device according to a preferred embodiment of the present invention.

[0017] Figure 6 This is a schematic diagram of the structure of the sterilization bag according to a preferred embodiment of the present invention. Detailed Implementation

[0018] 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.

[0019] For ease of description, only the parts relevant to this utility model are shown in the accompanying drawings. The terms "first," "second," etc., used in this utility model are merely for the convenience of describing the technical solution and do not have a specific limiting effect; they are all general terms and do not constitute a limitation on the technical solution of this utility model. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Terms indicating positional relationships, such as "middle," "horizontal," "vertical," "longitudinal," "front," "rear," "left," "right," "inner," and "outer," are based on the positional relationships shown in the accompanying drawings and do not imply that the components referred to must be presented in the described positional relationships; they do not constitute a limitation on the technical solution of this utility model.

[0020] like Figure 1-6 As shown, this utility model embodiment provides a convenient medical device sterilization device, including a base plate 1 and a housing 2 detachably connected to the base plate 1, forming an integral outer shell. A notch 3 is cut along the right side of the upper surface of the housing 2. A frame is fixed to the upper surface of the base plate 1, and an oxygen generator 4, a refrigerated dryer 5, an ozone generation module 6 containing an air compressor 61 and an ozone generator 62, an ozone concentration analyzer 7, an electrical control box 8, and a vacuum sealing machine 9 with the notch 3 exposed are all installed inside the housing 2. The housing 2 also houses a solenoid valve 10, a solenoid valve 11, a switching valve 12, a first three-way pipe 13, a temperature sensor 14, and a second three-way pipe 24. A touch screen 15 is embedded in the upper surface of the housing 2, and an ozone output port 16 is embedded in the side of the housing 2. The outer shell of the sterilization device is treated with electrostatic spraying for corrosion and rust prevention.

[0021] Specifically, the frame includes a first vertical frame 17 fixed at the middle position of the upper surface of the base plate 1 and spaced apart from left to right. A horizontal frame 18 is fixed to the top of the two first vertical frames 17. The cavity formed by the two first vertical frames 17 contains and fixes the ozone generation module 6. An electrical control box 8 is fixed on the horizontal frame 18.

[0022] The frame also includes a second vertical frame 19 fixed to the right end of the upper surface of the base plate 1 and spaced back and forth. A horizontal mounting bracket 20 is fixed to the top of the two second vertical frames 19. The cavity formed by the two second vertical frames 19 contains and fixes the ozone concentration analyzer 7. The horizontal mounting bracket 20 contains and fixes the vacuum sealing machine 9.

[0023] An oxygen generator 4 and a refrigerated dryer 5 are directly fixed to the left end of the upper surface of the base plate 1. The oxygen generator 4 is located at the front end, and the refrigerated dryer 5 is located at the rear end.

[0024] In addition, handles 21 are fixed on opposite sides of the casing 2 for easy movement.

[0025] The bottom of the casing 2 is equipped with four casters 22 with brakes at the four corners for easy movement.

[0026] The casing 2 has ventilation holes 23 for heat dissipation.

[0027] See Figure 5 The inlet pipe of oxygen concentrator 4 is connected to air. The outlet of oxygen concentrator 4, solenoid valve 10, the first and second ports of the first three-way pipe 13, refrigerated dryer 5, air compressor 61, ozone generator 62, switch valve 12, the first and second ports of the second three-way pipe 24, and ozone output port 16 are connected in sequence to form an oxygen source ozone generation mode. One end of solenoid valve 21 is connected to air. The other end of solenoid valve 21, the third and second ports of the first three-way pipe 13, refrigerated dryer 5, air compressor 61, ozone generator 62, switch valve 12, the first port of the second three-way pipe 24, and... The second port and ozone output port 16 are connected in sequence to form an air source ozone generation mode; a temperature sensor 14 is connected between the second port of the second three-way pipe 24 and the ozone output port 16, and the third port of the second three-way pipe 24 is connected to the ozone concentration analyzer 7. The switch valve 12 is connected to the foot switch, which is located outside the housing 2. The other end of the ozone output port 16 is used to connect to the air inlet of the sterilization bag 30. The touch screen 15, oxygen generator 4, solenoid valve 10, solenoid valve 2 11, refrigerated dryer 5, ozone generation module 6, ozone concentration analyzer 7 and temperature sensor 14 are all electrically connected to the electrical control box 8.

[0028] See Figure 4 In the sterilization device, the outlet of the oxygen generator 4 is connected to the solenoid valve 10 through the oxygen source inlet pipe 25, one end of the solenoid valve 21 is connected to the air through the air source inlet pipe 26, and the outlet 621 of the ozone generator 62 is connected to the input side pipe 121 of the switch valve 12.

[0029] See Figure 6The sterilization bag 30 includes a bag body 31. One end of the bag body 31 has a sealing zipper 32, and the other end of the bag body 31 has an air inlet 33 consisting of a one-way air inlet valve and an air outlet 34 consisting of a knob exhaust nozzle with a one-way air outlet valve. The air outlet 34 is screwed with an air outlet cap. In addition, the other end of the bag body 31 also has a handle 35. The air inlet 33 and the air outlet 34 are located on opposite sides of the other end of the bag body 31, and the handle 35 is located between the air inlet 33 and the air outlet 34.

[0030] In this embodiment, the sealing zipper 32 is only used for preliminary sealing; the final sealing is achieved by heat sealing using a vacuum sealing machine 9. The packaging material of the sterilization bag 30 is selected from high-molecular materials such as PU, and it is a pressure-resistant sterilization packaging bag with a one-way air inlet / outlet structure. This sterilization bag 30 is a disposable sterilization bag and must possess excellent physicochemical properties to form a sterile barrier, including microbial barrier, biocompatibility and toxicological characteristics, physical and chemical properties, compatibility with forming and sealing processes, compatibility with the expected ozone sterilization process, and post-sterilization storage life.

[0031] The sterilization bags 30 come in two sizes: a larger bag for packaging precision instruments such as laryngeal endoscopes, minimally invasive surgical instruments, and polymer instruments; and a smaller bag for packaging small, commonly used reusable metal surgical instruments such as scalpels, scissors, forceps, and tweezers. Because the sealing zipper 32 has limited strength and only moderate sealing performance, it is only used for initial sealing; final sealing requires heat sealing with a vacuum sealing machine 9. A one-way air inlet valve is used for ozone input into the bag; this valve ensures ozone can only be introduced inwards, preventing backflow. The air outlet 34 is used to release gas after sterilization, compressing the storage volume of the instrument packaging for easy transfer and transportation.

[0032] There are two design options for the one-way valve of the sterilization bag. After testing, the rigid one-way valve structure was selected. Because the sterilization bag with the rigid one-way valve structure has rigid air inlet 33 and air outlet 34, its performance will not be affected by factors such as compression or deformation.

[0033] It should be noted that: oxygen generator 4, refrigerated dryer 5, air compressor 61, ozone generator 62, ozone concentration analyzer 7, electrical control box 8, vacuum sealing machine 9, solenoid valve 10, solenoid valve 2 11, switching valve 12, temperature sensor 14 and foot switch all adopt existing structures. This embodiment only utilizes these components and does not make any structural improvements to the components.

[0034] The working process of this embodiment is as follows:

[0035] Touchscreen 15 allows users to select ozone generation mode (oxygen source ozone generation mode or air source ozone generation mode) and preset ozone concentration. Control box 8, upon receiving the air source ozone generation mode, controls only solenoid valve 11 to open, activating the refrigerated dryer 5, ozone generation module 6, ozone concentration analyzer 7, and temperature sensor 14. Air compressor 61 directly draws in air, which is then cooled and dried by refrigerated dryer 5. The air is then subjected to high-voltage ionization in ozone generator 62 to produce a relatively low concentration of ozone. During ozone generation, the actual ozone concentration detected by ozone concentration analyzer 7 is received, and the output is adjusted and sent to ozone generator 62 based on the actual ozone concentration. The high voltage ensures that the actual ozone concentration reaches the preset ozone concentration. When the ozone generation mode is received from the oxygen source, only the solenoid valve 10 is opened, starting the oxygen generator 4, the refrigerated dryer 5, the ozone generation module 6, the ozone concentration analyzer 7, and the temperature sensor 14. The air compressor 61 draws in the high-purity oxygen generated by the oxygen generator 4, which is then cooled and dried by the refrigerated dryer 5. The oxygen is then ionized under high voltage in the ozone generator 62 to generate ozone with a relatively high concentration. During the ozone generation process, the actual ozone concentration detected by the ozone concentration analyzer 7 is received, and the high voltage output to the ozone generator 62 is adjusted based on the actual ozone concentration to ensure that the actual ozone concentration reaches the preset ozone concentration.

[0036] Temperature sensor 14 is used to detect the temperature at the ozone output end and transmit it to the electrical control box 8. The electrical control box 8 is used to control the touch screen 15 to display this temperature in real time and analyze whether this temperature has reached the preset temperature. If it has, it indicates that the temperature is too high and controls the sterilization device to stop working. The preset temperature is set through the touch screen 15.

[0037] An air inlet 33 of a sterilization bag 30 containing medical devices is inserted into an ozone outlet 16 and manually pressed to maintain a seal. The foot pedal is pressed, the switch valve 12 is opened, and the ozone outlet 16 fills the sterilization bag 30 with ozone. After it is full, the foot pedal is turned off, the switch valve 12 is closed, and then the sterilization bag 30 is removed.

[0038] In this embodiment, the device uses a 220V, 50Hz AC power supply. The power socket is located at the bottom of the device to supply power to the electrical control box 8. The power socket is guaranteed to have good grounding to ensure the safety of personnel and the device.

[0039] The medical devices are placed into the sterilization bag 30. The vent cap and the sterilization bag 30 are a one-to-one match. First, screw the vent cap into the vent 34 and tighten it to ensure a leak-proof seal. Then, place the devices to be sterilized into the sterilization bag 30 through the sealing opening. First, zip up the sealing zipper 32, and then use the vacuum sealing machine 9 to heat seal the bag, achieving the final seal.

[0040] Insert the air inlet 33 of the sterilization bag 30 into the ozone outlet 16 of the device, and press to keep the air inlet 33 and the ozone outlet 16 sealed to reduce ozone leakage. Step on the foot switch to fill the sterilization bag 30 with ozone. After it is full, turn off the foot switch and wait 5 seconds before removing the sterilization bag 30. Since the air inlet 33 of the sterilization bag 30 is a one-way air intake structure, there is no need to worry about ozone leakage from the air inlet.

[0041] Based on the characteristics of ozone's low preparation difficulty, high oxidation potential, and green and non-toxic byproducts, this utility model selects ozone disinfection and sterilization as the method. Starting from the optimization of ozone generation structure and the integration of medical device sterilization-sealing integration requirements, a convenient integrated sterilization device suitable for various types of ships has been developed to meet the needs of long-term and emergency situations for multiple batches of reusable metal medical devices in diverse tasks.

[0042] 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. A portable medical device sterilization device, characterized in that, The device includes a housing with a notch, inside which are installed an oxygen generator, a refrigerated dryer, an ozone generation module containing an air compressor and an ozone generator, an ozone concentration analyzer, an electrical control box, a vacuum sealer with an exposed notch, a solenoid valve one, a solenoid valve two, a switching valve, a first three-way pipe and a second three-way pipe, and a touch screen and an ozone output port are embedded. The oxygen generator's inlet pipe is connected to air. The oxygen generator's outlet, solenoid valve one, the first and second ports of the first three-way pipe, the refrigerated dryer, the air compressor, the ozone generator, the switching valve, the first and second ports of the second three-way pipe, and the ozone output port are sequentially connected to form an oxygen source ozone generation mode. One end of the solenoid valve two is connected to air. The other end of the solenoid valve two, the third and second ports of the first three-way pipe, the refrigerated dryer, the air compressor, the ozone generator, the switching valve, the first and second ports of the second three-way pipe, and the ozone output port are sequentially connected to form an air source ozone generation mode. The third port of the second three-way pipe is connected to an ozone concentration analyzer. The switching valve is connected to a foot switch located outside the casing. The other end of the ozone output port is used to connect to the air inlet of the sterilization bag containing the medical device. The touch screen, oxygen generator, solenoid valve one, solenoid valve two, refrigerated dryer, ozone generation module, and ozone concentration analyzer are all electrically connected to the electrical control box.

2. The portable medical device sterilization device as described in claim 1, characterized in that, The outer casing includes a base plate and a housing detachably connected to the base plate. A frame is fixed to the upper surface of the base plate. An oxygen generator, a refrigerated dryer, an ozone generation module, an ozone concentration analyzer, an electrical control box, and a vacuum sealing machine are installed on the frame and housed within the housing. A touch screen is embedded in the upper surface of the housing, and an ozone output port is embedded in the side of the housing. Solenoid valve one, solenoid valve two, a switching valve, a first three-way pipe, and a second three-way pipe are also installed inside the housing.

3. The portable medical device sterilization device as described in claim 2, characterized in that, The frame includes a first vertical frame fixed at the middle position of the upper surface of the base plate and spaced apart from left to right. A horizontal frame is fixed to the top of the two first vertical frames. An ozone generation module is accommodated and fixed in the cavity formed by the two first vertical frames. An electrical control box is fixed on the horizontal frame. The frame also includes a second vertical frame fixed to the right end of the upper surface of the base plate and spaced back and forth. A horizontal mounting frame is fixed to the top of the two second vertical frames. The cavity formed by the two second vertical frames contains and fixes the ozone concentration analyzer. The horizontal mounting frame contains and fixes the vacuum sealing machine. The oxygen generator and the refrigerated dryer are directly fixed to the left end of the upper surface of the machine base plate.

4. The portable medical device sterilization device as described in claim 3, characterized in that, The oxygen generator is located at the front end, and the refrigerated dryer is located at the rear end.

5. The portable medical device sterilization device as described in claim 1, characterized in that, A temperature sensor is also installed inside the housing. The temperature sensor is connected to the pipe between the second port of the second three-way pipe and the ozone output port. The temperature sensor is electrically connected to the electrical control box.

6. The portable medical device sterilization device as described in claim 1, characterized in that, The sterilization bag includes a bag body, one end of which is provided with a sealing zipper for initial sealing, and the other end of which is provided with an air inlet consisting of a one-way air inlet valve and an air outlet consisting of a knob exhaust nozzle with a one-way air outlet valve, and the air outlet is screwed on with an air outlet cap.

7. The portable medical device sterilization device as described in claim 6, characterized in that, The other end of the bag is also provided with a handle, and the air inlet and air outlet are located on opposite sides of the other end of the bag, with the handle located between the air inlet and air outlet.

8. The portable medical device sterilization device as described in claim 1, characterized in that, Handles are fixed to opposite sides of the outer casing.

9. The portable medical device sterilization device as described in claim 1, characterized in that, Each of the four corners of the bottom of the outer casing is fixed with a roller equipped with a brake.

10. The portable medical device sterilization device as described in claim 1, characterized in that, The outer casing has heat dissipation holes.

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