An electro-pneumatic portable wound irrigation device

Abstract

The present application relates to an electric-pneumatic portable wound irrigation device, comprising: a body having a handle and an extension portion provided at the top end of the handle, the extension portion extending in the direction of spraying irrigation liquid; an atomizing irrigation assembly detachably mounted on the front end of the extension portion; the atomizing irrigation assembly comprising an integrated atomizing nozzle and an irrigation liquid chamber, the irrigation liquid chamber pre-filled with irrigation liquid, the atomizing nozzle being connected to the irrigation liquid chamber; an air source assembly provided on the handle and configured to supply a high-speed airflow to the atomizing nozzle; the air source assembly comprising an air circuit and a power supply, the air inlet of the air circuit being located on the outer shell of the handle, the air outlet of the air circuit being located on the front end surface of the extension portion and being able to connect to the air inlet end of the atomizing nozzle; the power supply being configured to provide the electrical energy required to generate the high-speed airflow. The present application has a simple structure, is easy to carry, and is simple to operate, making wound treatment more convenient and quick.

Description

Technical Field

[0001] The present application belongs to the field of medical device technology, and specifically relates to an electro-pneumatic portable wound irrigation device. Background Art

[0002] Irrigation of surgical wounds, especially those caused by animals, is crucial for reducing the risk of infection, including infections caused by pathogens such as tetanus and rabies. Wound irrigation devices are medical tools specifically designed to clean and disinfect wounds, especially those caused by animal bites or scratches. Research has shown that specialized irrigation devices perform exceptionally well in trauma treatment and care. Compared to traditional saline or soap irrigation, they can block pathogenic microbial infection pathways in the early stages of wound care, cleanse the affected area, significantly reduce the risk of rabies, alleviate patient pain, and effectively promote wound healing. This method can alleviate the fear of later dressing changes and reduce pain, especially in children.

[0003] Correct irrigation techniques play a crucial role in reducing the risk of infection in animal-inflicted wounds. Factors such as irrigation pressure, type of irrigation fluid, direction of irrigation flow, and duration (and amount of fluid used) all influence wound irrigation effectiveness. Currently, there is a type of wound irrigation device on the market for animal-inflicted wounds that uses high-pressure water technology to clean wounds and remove bacteria and dirt.

[0004] However, existing wound irrigation equipment of this type is not only complicated to operate and occupies a large area, but also requires a special environment and is equipped with water supply and drainage, resulting in a large amount of water consumption. This requires that it be used in specific places such as hospitals and cannot be moved to other places for use. The wound is often not rinsed and treated in the first place, delaying the flushing opportunity; moreover, the nozzles of existing wound irrigation equipment are reused and cannot reach the sterilization level, posing a risk of cross infection, and the drying of the disinfectant solute and scale can easily cause nozzle clogging. Summary of the Invention

[0005] In view of the above analysis, an embodiment of the present invention aims to provide an electro-pneumatic portable wound irrigation device to solve one or more of the above problems existing in the prior art.

[0006] The object of the present invention is achieved like this:

[0007] An electro-pneumatic portable wound irrigation device comprising:

[0008] A body having a handle and an extension portion provided at the top of the handle, wherein the extension portion extends in a spraying direction of the flushing liquid;

[0009] An atomizing flushing assembly is detachably mounted on the front end of the extension portion; the atomizing flushing assembly comprises an atomizing nozzle and a flushing liquid tank of an integrated structure, the flushing liquid tank is pre-filled with flushing liquid, and the atomizing nozzle is in communication with the flushing liquid tank;

[0010] An air source assembly is provided on the handle and is configured to supply a high-speed airflow to the atomizing nozzle so that the aerosol pressure generated by the atomizing nozzle is at least 5PSI; the air source assembly has an air circuit and a power supply, the air inlet of the air circuit is located on the outer shell of the handle, and the air outlet of the air circuit is located on the front end surface of the extension portion and can be connected to the air inlet end of the atomizing nozzle; the power supply is configured to provide the electrical energy required to generate the high-speed airflow.

[0011] Furthermore, the body of the flushing liquid tank is made of flexible material.

[0012] Furthermore, it also includes an air circuit connecting mechanism, which is arranged at the front end of the extension part and is configured to connect the air outlet of the air circuit with the air inlet end of the atomizing nozzle after the atomizing flushing component and the extension part are assembled.

[0013] Furthermore, the air inlet of the air circuit is provided with a filter, and the filter is detachably mounted on the outer shell of the handle.

[0014] Furthermore, the filter has a nano-filament structure formed by electrostatic spinning technology.

[0015] Furthermore, a micro compressor and a constant pressure controller are provided on the gas circuit, and the micro compressor is configured to compress the air entering the gas circuit to provide high-pressure gas;

[0016] The constant pressure controller is configured to adjust and control the pressure and flow rate of the gas in the gas circuit to be within a stable range.

[0017] Furthermore, the power supply is powered by a power cord; or, the power supply is powered by a battery, and the battery is a lithium battery that can be detachably installed in the handle.

[0018] Furthermore, a transfer tube is provided on the outer shell of the handle, one end of the transfer tube is connected to the air inlet of the air circuit, and the other end of the transfer tube is detachable and connected to a nitrogen source or an oxygen source.

[0019] Furthermore, the atomizing flushing assembly is further provided with a heating element, which is configured to heat the flushing liquid in the flushing liquid chamber, and the heating element is powered by the power supply.

[0020] Furthermore, a lighting lamp is provided at the top of the front end of the extension portion, and the light emission direction of the lighting lamp is the same as the spraying direction of the atomizing nozzle.

[0021] Furthermore, the capacity of the flushing liquid tank is 150-300 ml.

[0022] Furthermore, the atomizing nozzle is horizontally arranged below the flushing liquid tank, and the air inlet end of the atomizing nozzle is connected to the air outlet of the air circuit through a horizontally arranged air duct.

[0023] Furthermore, along the flow direction of the fluid, the atomizing nozzle includes a primary atomizing section and a secondary atomizing section that are arranged continuously, and the primary atomizing section is connected to the flushing liquid tank through a liquid supply channel;

[0024] The flushing droplets and high-speed gas complete the initial atomization in the first atomization chamber of the primary atomization section. The diameter of the aerosol after the initial atomization is 100 microns.

[0025] The aerosol after the initial atomization completes the secondary atomization in the second atomization chamber of the secondary atomization section, and the diameter of the aerosol after the secondary atomization is 10-30 microns.

[0026] Furthermore, along the flow direction of the fluid, the secondary atomization section includes a contraction section, a throat vortex section and an expansion section. The inner cavity of the contraction section is set to be of reduced diameter, and the inner cavity of the expansion section is set to be of expanded diameter. The inner wall of the throat vortex section is provided with at least one protrusion, which divides the second atomization chamber of the throat vortex section into multiple monomer cavities that are interconnected.

[0027] Furthermore, the side of the protrusion facing the direction of the fluid is an arc-shaped surface, and the arc-shaped surface can guide the fluid in the single cavity to enter the next single cavity along the arc-shaped surface in the form of a reduced diameter.

[0028] Furthermore, the inlet of the monomer cavity at the head end is the outlet of the contraction section, the outlet of the monomer cavity at the tail end is the inlet of the expansion section, and the inlet of the adjacent downstream monomer cavity is the outlet of the adjacent upstream monomer cavity; and, along the flow direction of the fluid, the inlet sizes of multiple monomer cavities increase successively.

[0029] Furthermore, along the fluid flow direction, the inlet sizes of the plurality of monomer cavities increase sequentially by 10%-12%.

[0030] Furthermore, the atomizing nozzle is made of metal.

[0031] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0032] a) The electric-pneumatic portable wound irrigation device provided by the present invention has a simple structure, is easy to carry, and is easy to operate. It simplifies the operating process, making wound treatment more convenient and quick. It can be flexibly applied to a variety of scenarios, especially in the wild or when medical resources are limited or in different departments of a hospital. It can provide immediate wound treatment, improve work efficiency, and reduce manpower and time costs.

[0033] b) The electric-pneumatic portable wound irrigation device provided by the present invention integrates the atomizing nozzle and the irrigation liquid chamber into an atomizing irrigation component with an integral structure, and the atomizing irrigation component and the body are detachably connected, so that the atomizing irrigation component can be easily replaced to avoid the risk of cross contamination. In addition, it can prevent the drying of the disinfectant solute and scale from easily causing clogging of the nozzle.

[0034] c) The electric-pneumatic portable wound irrigation device provided by the present invention adopts a two-stage atomizing nozzle to enhance the atomization effect. The atomizing nozzle includes a primary atomizing section and a secondary atomizing section which are arranged in series. The secondary atomizing section includes a contraction section, a throat vortex section and an expansion section which are arranged in sequence. Ultimately, an atomizing effect with a diameter of 10-30 microns and a pressure of 5-18 PSI is formed with static electricity. This device has a better irrigation effect on animal-induced wounds, can effectively cleanse wounds and reduce wound infection, and reduce health risks caused by animal-induced wounds.

[0035] d) The electric-pneumatic portable wound irrigation device provided by the present invention has an irrigation liquid tank body made of flexible material. During the liquid supply process, continuous liquid supply can be achieved without connecting to the outside atmosphere, and no air backfill is required to prevent secondary contamination. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of this specification or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the embodiments of this specification. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0037] Figure 1 A schematic diagram of the structure of the electric-pneumatic portable wound irrigation device provided by the present invention;

[0038] Figure 2 A schematic diagram of the disassembled state of the atomizing flushing assembly and the body provided by the present invention;

[0039] Figure 3 A schematic structural diagram of the atomizing nozzle provided by the present invention;

[0040] Figure 4 This is the local structure of the atomizing nozzle provided by the present invention.

[0041] Reference numerals:

[0042] 100, fuselage; 200, atomizing flushing assembly; 300, air source assembly;

[0043] 1. Handle; 2. Micro compressor; 3. Filter; 4. Battery; 5. Switch relay; 6. Trigger switch; 7. Trigger lock; 8. Main control circuit board; 9. LCD screen; 10. Pressure adjustment knob; 11. Temperature adjustment knob; 12. Air connection mechanism; 13. Flushing liquid tank; 14. Power contact; 15. Atomizing nozzle; 16. Light; 17. Power control board; 18. Constant pressure controller; 19. Extension; 20. Primary atomization section; 21. Secondary atomization section; 22. Contraction section; 23. Throat vortex section; 24. Expansion section; 25. Protrusion; 26. First single cavity; 27. Second single cavity; 28. Third single cavity; 29. ​​Airway; 30. Liquid supply channel; 31. Air path. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. It should be noted that, in the absence of conflict, the embodiments in this disclosure and the features in the embodiments can be combined, separated, interchanged and / or rearranged with each other. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0045] In the accompanying drawings, the sizes and relative sizes of components may be exaggerated for clarity and / or descriptive purposes. When the exemplary embodiments can be implemented differently, the specific process sequence may be performed in a different order than described. For example, two processes described in succession may be performed substantially simultaneously or in a reverse order from the described order. In addition, the same reference numerals represent the same components.

[0046] The terms used herein are for the purpose of describing specific embodiments and are not intended to be restrictive. As used herein, unless the context clearly indicates otherwise, the singular forms "one (kind, person)" and "said (the)" are also intended to include plural forms. In addition, when the terms "comprise" and / or "include" and their variations are used in this specification, the features, integral bodies, steps, operations, parts, assemblies and / or their groups stated are explained, but the presence or addition of one or more other features, integral bodies, steps, operations, parts, assemblies and / or their groups is not excluded. It should also be noted that, as used herein, the terms "substantially", "approximately" and other similar terms are used as approximate terms and not as degree terms, so that they are used to explain the inherent deviations of the measured values, calculated values ​​and / or the values ​​provided that will be recognized by those of ordinary skill in the art.

[0047] Example 1

[0048] A specific embodiment of the present invention, as Figures 1 to 2 As shown, an electro-pneumatic portable wound irrigation device is disclosed, comprising:

[0049] The body 100 has a handle 1 and an extension portion 19 provided at the top of the handle 1, wherein the extension portion 19 extends in the direction of spraying the flushing liquid;

[0050] The atomizing flushing assembly 200 is detachably mounted on the front end of the extension portion 19; the atomizing flushing assembly 200 comprises an atomizing nozzle 15 and a flushing liquid tank 13 of an integrated structure, wherein the flushing liquid tank 13 is pre-filled with flushing liquid, and the atomizing nozzle 15 is in communication with the flushing liquid tank 13;

[0051] The air source assembly 300, serving as the main power source for the spray, is provided on the handle 1 and is configured to supply a high-speed airflow to the atomizing nozzle 15, so that the aerosol pressure generated by the atomizing nozzle 15 is at least 5PSI; the air source assembly 300 has an air circuit 31 and a power supply, the air inlet of the air circuit 31 is located on the outer shell of the handle 1, and the air outlet of the air circuit 31 is located on the front end surface of the extension portion 19 and can be connected to the air inlet end of the atomizing nozzle 15; the power supply is configured to provide the electrical energy required to generate the high-speed airflow.

[0052] It should be noted that the high-speed airflow in this embodiment has the pressure and flow rate required for the atomizing nozzle 15 to generate aerosol, and the aerosol pressure that can be finally generated is at least 5 PSI.

[0053] In this embodiment, the atomizing flushing assembly 200 is composed of an atomizing nozzle and a flushing liquid tank 13, and is a disposable consumable part. The atomizing flushing assembly 200 is detachably connected to the extension portion 19 of the fuselage 100, which facilitates the rapid replacement of the atomizing flushing assembly 200. Various forms of detachable connection structures can be used, such as snap-fit, screw-fit, plug-in, etc., as long as the sealing of the connection pipe can be ensured after connection. Optionally, the atomizing flushing assembly 200 is connected to the extension portion 19 by a snap-fit ​​locking structure, which can achieve rapid disassembly and assembly of the atomizing flushing assembly 200.

[0054] Furthermore, the electric-pneumatic portable wound irrigation device further includes an air circuit connection mechanism 12, which is disposed at the front end of the extension portion 19 and is configured to connect the air outlet of the air circuit 31 to the air inlet of the atomizing nozzle 15 after the atomizing irrigation assembly 200 is assembled with the extension portion 19. Exemplarily, the air circuit connection mechanism includes a rotary locking structure and a spring button. The rotary locking structure has a locked state and a free state. The spring button is used to switch the rotary locking structure between the locked state and the free state, thereby achieving rapid assembly and disassembly. When the atomizing flushing assembly 200 needs to be removed, press the spring button to release the locking state of the rotary locking structure, so that the rotary locking structure changes to a free state, and the atomizing flushing assembly 200 can be removed by twisting it; when installing a new atomizing flushing assembly 200, align it with the front end of the extension part of the fuselage 100, and twist the atomizing flushing assembly 200 in the opposite direction to directly complete the installation of the atomizing flushing assembly 200 and the extension part of the fuselage 100. At this time, the spring button is reset, so that the rotary locking structure is in a locked state.

[0055] In this embodiment, the atomizing nozzle 15 is horizontally arranged below the flushing liquid chamber 13 , and the air inlet end of the atomizing nozzle 15 is connected to the air outlet of the air path 31 through a horizontally arranged air passage 29 .

[0056] In this embodiment, the atomizing nozzle 15 is a two-stage atomizing nozzle, which uses two atomization steps to enhance the atomization effect. Specifically, along the flow direction of the fluid, the atomizing nozzle 15 includes a primary atomizing section 20 and a secondary atomizing section 21 that are arranged in series. The primary atomizing section 20 is connected to the flushing liquid tank 13 through a liquid supply channel 30. The primary atomizing section 20 uses a siphon effect and a capillary effect to fully mix the flushing liquid droplets with the high-speed gas in the first atomizing chamber of the primary atomizing section 20. The diameter of the aerosol after the primary atomization is approximately 100 microns. The aerosol after the primary atomization enters the second atomizing chamber of the secondary atomizing section 21. The secondary atomizing section 21 uses the Venturi principle to perform a secondary atomization on the aerosol after the primary atomization. The diameter of the aerosol after the secondary atomization is 10-30 microns.

[0057] Further, see Figures 3 and 4 Along the flow direction of the fluid, the secondary atomization section 21 includes a contraction section 22, a throat vortex section 23 and an expansion section 24 arranged in sequence. The inner cavity of the contraction section 22 is arranged to shrink along the flow direction of the fluid, and the inner cavity of the expansion section 24 is arranged to expand along the flow direction of the fluid. The inner wall of the throat vortex section 23 is provided with at least one protrusion 25, which divides the second atomization chamber of the throat vortex section 23 into multiple interconnected monomer cavities. The function of the monomer cavity is to allow the droplets to fully collide for a second time after the vortex is generated, and to produce finer droplets under the drive of the high-speed airflow.

[0058] Among them, the side of the protrusion 25 facing the direction of the fluid is an arc-shaped surface, and the arc-shaped surface can guide the fluid in the single cavity along the arc-shaped surface into the next monomer cavity in the form of a reduced diameter. In other words, the second atomization chamber includes a plurality of monomer cavities, and each monomer cavity includes a regular cylindrical surface and a reduced diameter arc-shaped surface. By arranging a protrusion 25 with an arc-shaped surface in the throat vortex section 23, the high-speed aerosol forms a vortex in the throat vortex section 23, and the collision between the droplets further refines the droplets, completing the secondary atomization. By setting the throat vortex section 23 as a plurality of monomer structures, the stability of the end aerosol particle size distribution can be better guaranteed.

[0059] The multiple monomer cavities are coaxially arranged along the direction of the fluid flow and are connected in sequence. The inlet of the monomer cavity at the head end is the outlet of the contraction section 22, the outlet of the monomer cavity at the tail end is the inlet of the expansion section 24, and the inlet of the adjacent downstream monomer cavity is the outlet of the adjacent upstream monomer cavity. In addition, along the fluid flow direction, the inlet sizes of the multiple monomer cavities increase in sequence. For example, see Figure 4 The second atomization chamber includes three coaxial and sequentially connected single cavities. The first single cavity has a first inlet and a first outlet, the second single cavity 27 has a second inlet and a second outlet, and the third single cavity 28 has a third inlet and a third outlet. The first inlet is the outlet of the contraction section 22, the first outlet is the second inlet, the second outlet is the third inlet, and the third outlet is the entrance of the expansion section 24. The diameter of the first inlet is R1, the diameter of the second inlet is R2, and the diameter of the third inlet is R3, where R1 < R2 < R3. Furthermore, R1, R2, and R3 increase by 10%-12% in sequence. Furthermore, the inlet diameter of the expansion section 24 is R4, where R3 ≤ R4 ≤ 1.05R3. The aerosol nozzle with the above structure can achieve a droplet diameter distribution between 10-30 microns at the outlet of the expansion section 24, an aerosol pressure between 5-18 PSI, and a better atomization effect, thereby enhancing the flushing effect on the wound.

[0060] Furthermore, the atomizing nozzle is made of metal. Due to the friction between the high-speed airflow and the metal nozzle, the terminal aerosol is charged with static electricity, ensuring that the droplets do not collide or combine with each other during flight. At the same time, it can bypass complex wound surfaces and ultimately adhere to the wound surface through electrostatic attraction, fully infiltrating every corner of the wound and improving the cleaning effect. Furthermore, the handle 1 is grounded to prevent static electricity accumulation caused by the high-speed airflow.

[0061] Existing flushing equipment uses a hard-shell flushing tank that requires air backfill, otherwise continuous liquid supply will be impossible. However, air backfilling poses the risk of secondary contamination. Therefore, in this embodiment, the body of the flushing tank 13 is made of a flexible material, and the capacity of the flushing tank 13 can be set according to actual needs. Optionally, the capacity of the flushing tank 13 is 150-300 ml. During the liquid supply process, as the flushing liquid in the tank decreases, the tank body can adaptively deform, thereby achieving continuous liquid supply without connecting to the outside atmosphere, eliminating the need for air backfill and preventing secondary contamination.

[0062] In one optional embodiment, the flushing liquid chamber 13 also has a constant temperature function, and the flushing liquid in the flushing liquid chamber 13 can be kept at a constant temperature. Exemplarily, the atomizing flushing assembly 200 is further provided with a heating element, which is configured to heat the flushing liquid in the flushing liquid chamber 13, and the heating element is powered by the power supply.

[0063] In one optional embodiment, the front end of the extension portion 19 and the rear end of the atomizing flushing assembly 200 are both provided with power contacts 14 arranged in pairs; when the extension portion 19 and the atomizing flushing assembly 200 are installed in place, the power contacts 14 connect the power supply circuit.

[0064] In this embodiment, a filter 3 is provided at the air inlet of the air path 31, and the filter 3 is detachably mounted on the housing of the handle 1. Optionally, the filter 3 employs a nano-filament structure formed by electrospinning technology, with a polyester matrix material and a Mof piezoelectric material Fe-Co-Ni. When air passes through, the filter 3 releases reactive oxygen species (ROS). This increases the contact area, reduces wind resistance, and improves filtration efficiency. Furthermore, the ROS can effectively kill microorganisms in the incoming air, thereby extending the filter's service life.

[0065] In this embodiment, the power supply is powered by a power cord; alternatively, the power supply is powered by a battery 4. Preferably, the battery 4 is powered by a battery, for example, the battery 4 is a lithium battery, and the lithium battery is detachably installed in the handle 1.

[0066] In this embodiment, the electric-pneumatic portable wound irrigation device features pressure, temperature, and flow rate regulation, making it suitable for cleaning a variety of wounds. It also includes a display that displays real-time parameters such as power level, flow rate, air pressure, and temperature. Specifically, the air circuit 31 is equipped with a micro-compressor 2 and a constant pressure controller 18. The micro-compressor 2 is configured to compress the air entering the air circuit 31 to provide high-pressure gas; the constant pressure controller 18 is configured to regulate the pressure and flow rate of the gas within the air circuit 31 within a stable range. The handle 1 is equipped with a temperature adjustment knob 11, a pressure adjustment knob 10, and an LCD display 9.

[0067] In this embodiment, the air source assembly 300 serves as the primary power source for the spray, providing compressed air or other stable, pressurized gas, including compressed air, compressed nitrogen, oxygen, etc. Specifically, the housing of the handle 1 may also be provided with a transfer tube, which serves as an interface for connecting to the gas source or directly serves as an air inlet. For example, one end of the transfer tube communicates with the air inlet of the air circuit 31, while the other end of the transfer tube is detachable for connection to a nitrogen or oxygen source.

[0068] In this embodiment, the body 100 is further provided with a main control circuit board 8 and a power control board 17. The main control circuit board 8 is configured to control the operation of the electro-pneumatic portable wound irrigation device. The power control board 17 is configured to monitor the power input voltage and current to achieve stable regulation of the power output voltage and current.

[0069] In this embodiment, the handle 1 is further provided with a trigger switch 6, and the trigger switch 6 is further equipped with a switch relay 5 and a trigger lock 7. The trigger lock 7 serves as a switch safety device to prevent accidental touch.

[0070] In this embodiment, a lighting lamp 16 is provided at the top of the front end of the extension portion 19. The light emission direction of the lighting lamp 16 is the same as the spray direction of the atomizing nozzle 15, which facilitates observation of the spraying situation.

[0071] In one optional embodiment, the housing of the body 100 and the shell of the atomizing flushing component 200 are both made of plastic with an antibacterial coating function to ensure safety in a medical environment.

[0072] Compared with the prior art, the electric-pneumatic portable wound irrigation device provided in this embodiment has the following beneficial effects:

[0073] 1. The device has a simple structure, small size, portability, and easy operation. It simplifies the operation process, making wound treatment more convenient and faster. It can be flexibly applied to a variety of scenarios, especially in the wild or in situations with limited medical resources or in different departments of the hospital, providing immediate wound treatment. The portable and easy-to-operate structural design of this application can save medical staff time, allowing them to handle more emergency situations within the same working hours, thereby improving the efficiency of overall medical services and potentially reducing labor costs.

[0074] 2. By integrating the atomizing nozzle and the flushing liquid tank into an integrated atomizing flushing component, and adopting a detachable connection method between the atomizing flushing component and the fuselage, it is convenient to replace the atomizing flushing component and avoid the risk of cross contamination. Moreover, it can prevent the disinfectant solute from drying and scale from easily causing the nozzle to be blocked.

[0075] 3. A two-stage atomizing nozzle is used to improve the atomization effect. The atomizing nozzle includes a primary atomizing section and a secondary atomizing section that are set continuously. The secondary atomizing section includes a contraction section, a throat vortex section and an expansion section that are set in sequence, ultimately forming an atomizing effect with an electrostatic diameter of 10-30 microns and a pressure of 5-18PSI. It has a better flushing effect on animal wounds, can effectively cleanse wounds and reduce wound infection, and reduce health risks caused by animal injuries.

[0076] 4. The body of the flushing liquid tank is made of flexible material. During the liquid supply process, continuous liquid supply can be achieved without connecting to the outside atmosphere, and no air backfill is required to prevent secondary pollution.

[0077] 5. Pneumatic design is adopted, and different air sources can be replaced.

[0078] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of this application. It should be understood that the above description is only the specific implementation methods of this application and is not intended to limit the scope of protection of this application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this application should be included in the scope of protection of this application.

Claims

1. An electric pneumatic portable wound irrigation device, characterized in that: include: A body (100) comprises a handle (1) and an extension portion (19) provided at the top end of the handle (1), wherein the extension portion (19) extends in a spraying direction of the flushing liquid; an atomizing flushing assembly (200) detachably mounted on the front end of the extension portion (19); the atomizing flushing assembly (200) comprises an atomizing nozzle (15) and a flushing liquid tank (13) of an integrated structure, the flushing liquid tank (13) being pre-filled with flushing liquid, the tank body of the flushing liquid tank (13) being made of a flexible material; the atomizing nozzle (15) being horizontally arranged below the flushing liquid tank (13) and being in communication with the flushing liquid tank (13); An air source assembly (300) is provided on the handle (1) and is configured to supply a high-speed airflow to the atomizing nozzle (15), so that the aerosol pressure generated by the atomizing nozzle (15) is at least 5 PSI; the air source assembly (300) comprises an air circuit (31) and a power supply, the air inlet of the air circuit (31) being located on the housing of the handle (1), the air outlet of the air circuit (31) being located on the front end surface of the extension portion (19) and being capable of communicating with the air inlet end of the atomizing nozzle (15); the power supply being configured to provide the electrical energy required to generate the high-speed airflow; Along the flow direction of the fluid, the atomizing nozzle (15) includes a primary atomizing section (20) and a secondary atomizing section (21) that are arranged in series, and the primary atomizing section (20) is connected to the flushing liquid tank (13) through a liquid supply channel (30); Along the flow direction of the fluid, the secondary atomization section (21) includes a contraction section (22), a throat vortex section (23) and an expansion section (24); the inner cavity of the contraction section (22) is configured to be of a contracted diameter, and the inner cavity of the expansion section (24) is configured to be of an expanded diameter; the inner wall of the throat vortex section (23) is provided with at least one protrusion (25); the protrusion (25) divides the second atomization chamber of the throat vortex section (23) into a plurality of mutually connected monomer cavities; the side of the protrusion (25) facing the fluid direction is an arc-shaped surface, and the arc-shaped surface can guide the fluid in the monomer cavity to enter the next monomer cavity along the arc-shaped surface in a contracted form.

2. The electric-pneumatic portable wound irrigation device according to claim 1, characterized in that: It also includes an air circuit connection mechanism (12), which is provided at the front end of the extension portion (19) and is configured to connect the air outlet of the air circuit (31) with the air inlet end of the atomizing nozzle (15) after the atomizing flushing assembly (200) and the extension portion (19) are assembled.

3. The electric-pneumatic portable wound irrigation device according to claim 1, characterized in that: The air inlet of the air circuit (31) is provided with a filter (3), and the filter (3) is detachably mounted on the outer shell of the handle (1).

4. The electric-pneumatic portable wound irrigation device according to claim 1, characterized in that: The gas circuit (31) is provided with a micro compressor (2) and a constant pressure controller (18), wherein the micro compressor (2) is configured to compress air entering the gas circuit (31) to provide high-pressure gas; The constant pressure controller (18) is configured to regulate and control the pressure and flow rate of the gas in the gas circuit (31) to be within a stable range.

5. The electric-pneumatic portable wound irrigation device according to claim 1, characterized in that: A transfer tube is provided on the outer shell of the handle (1), one end of the transfer tube is connected to the air inlet of the air circuit (31), and the other end of the transfer tube is detachable and connected to a nitrogen source or an oxygen source.

6. The electric-pneumatic portable wound irrigation device according to claim 1, characterized in that: The atomizing nozzle (15) is made of metal.

7. The electric-pneumatic portable wound irrigation device according to claim 1, characterized in that: The flushing droplets and the high-speed gas complete the primary atomization in the first atomization chamber of the primary atomization section (20), and the diameter of the aerosol after the primary atomization is 100 microns; The aerosol after the initial atomization is subjected to secondary atomization in the second atomization chamber of the secondary atomization section (21), and the diameter of the aerosol after the secondary atomization is 10-30 microns.

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