Washing and nursing integrated liquefaction sprayer

Abstract

The utility model provides a washing and nursing integrated liquefying sprayer, which relates to the technical field of nursing and comprises a handheld part, a spraying part is arranged at the top of the handheld part, a spraying opening is arranged in the spraying part and positioned on the front side, a fixed seat is arranged in the handheld part, a mounting ring is arranged at the top of the fixed seat, and a cleaning part is arranged at the top of the mounting ring. A pump body is arranged in the mounting ring, a plurality of sealing bolts are arranged between the mounting ring and the fixing seat, a connecting groove is formed in the fixing seat, and the liquid medicine storage bottle can be conveniently in threaded connection with and detached from the fixing seat through the unique connection design of the liquid medicine storage bottle and the handheld part. When medical staff need to replace different types of liquid medicine in postoperative nursing, only an old liquid medicine storage bottle needs to be unscrewed, a new bottle containing the corresponding liquid medicine needs to be installed, and the sealing performance of the medical staff is better due to the multi-section threaded connection combination.

Description

Technical Field

[0001] This utility model relates to the field of nursing technology, and in particular to a liquefied spray device that integrates washing and care. Background Technology

[0002] In the field of postoperative medical care, the care of patients' surgical wounds and surrounding skin is crucial and faces many challenges.

[0003] The wet compress method typically involves soaking medical gauze in a medicated solution and then applying it to the patient's skin. This method is not only cumbersome and time-consuming to prepare, but also has limited adhesion between the gauze and the skin, making it difficult to adapt well to the contours of different parts of the body. This can easily lead to leakage of the medicated solution or local dryness, thereby reducing the effectiveness of the care. In addition, wet compresses require frequent dressing changes, which places high demands on the workload and operation of medical staff. The problem of low efficiency is even more prominent when caring for multiple patients or treating large wounds.

[0004] To address these issues, sprayers have emerged on the market for treatment. The general method involves injecting the medication into the sprayer and then spraying it evenly onto the treated area through the nozzle. However, these sprayers still have some shortcomings in actual operation.

[0005] Traditional nebulizers mostly adopt an integrated structural design, in which the reservoir is fixedly connected to the main body of the nebulizer without being detachable. This design brings many inconveniences and problems in actual use. When it is necessary to change to different types of medications for postoperative care, since the reservoir cannot be removed separately, medical staff have to thoroughly clean the entire nebulizer. This process is extremely tedious and time-consuming. For example, after surgery, it may be necessary to first use an anti-infective medication to spray the wound, and then switch to a nutrient medication to promote healing. At this time, because the reservoir cannot be removed, a lot of time must be spent cleaning the residual medication. This not only increases the workload of medical staff, but may also cause different medications to mix due to incomplete cleaning, affecting the treatment effect or even causing adverse reactions.

[0006] In terms of cleaning and maintenance, the non-removable storage containers also cause a lot of trouble. With the increase of use, the inside of the storage containers is prone to residual medicine and dirt. Since they cannot be removed separately for deep cleaning, bacteria will grow over time, which poses a potential threat to the patient's health. This risk of bacterial growth cannot be ignored, especially in postoperative care, where hygiene requirements are extremely high.

[0007] Traditional postoperative cold compress methods mainly include the use of ice packs and cold compresses. Ice packs need to be prepared and refrigerated in advance, and the temperature is difficult to control precisely during use. In addition, their fixed shape makes it difficult to fit perfectly to complex surgical sites, resulting in uneven cold compress effects. Existing spray devices lack cold compress effects and cannot combine medication with cold compresses, leading to functional deficiencies and failing to reduce patient pain during spray medication application.

[0008] Therefore, we propose a liquefied spray device that integrates washing and care. Utility Model Content

[0009] The purpose of this invention is to address the shortcomings of existing technologies. Traditional nebulizers often employ an integrated design, with the reservoir and nebulizer body being fixedly connected without detachment. This causes numerous inconveniences in practical use. When changing different medications for postoperative care, because the reservoir cannot be disassembled separately, medical staff must thoroughly clean the entire nebulizer, a cumbersome and time-consuming process. For example, when changing medications after surgery, a significant amount of time is required to clean away residual medication, increasing workload and potentially leading to medication mixing due to incomplete cleaning, affecting treatment efficacy or even causing adverse reactions. In terms of cleaning and maintenance, the non-removable reservoir also presents numerous problems. After repeated use, medication residue easily accumulates inside, which cannot be removed for deep cleaning. Long-term accumulation can easily breed bacteria. In postoperative care, where hygiene requirements are extremely high, the risk of such bacterial growth cannot be underestimated. Furthermore, existing nebulizers lack a cold compress effect, failing to combine medication application with cold compresses, resulting in functional deficiencies and failing to reduce patient discomfort during nebulized medication administration.

[0010] To achieve the above objectives, the present invention adopts the following technical solution:

[0011] A liquefied sprayer integrating washing and care includes a handheld part, a spraying part at the top of the handheld part, a component housing inside the spraying part, a spray nozzle inside the spraying part and located on the front, a fixed base inside the handheld part, a mounting ring at the top of the fixed base, a pump body inside the mounting ring, a plurality of sealing bolts between the mounting ring and the fixed base, a connecting groove inside the fixed base, a connector inside the connecting groove, a medicine inlet tube at the bottom of the connector, a medicine storage bottle inside the medicine inlet tube, and a bottle mouth at the top of the medicine storage bottle;

[0012] The top of the pump body is provided with a connecting pipe, and an auxiliary cooling component is also provided at the connection of the connecting pipe. The auxiliary cooling component is used to cool the liquid medicine in the connecting pipe before spraying it. The auxiliary cooling component includes a heat dissipation fin assembly, a semiconductor refrigeration chip, a cold chip, an absorption pipe, and a cooling fan.

[0013] As a preferred embodiment of this utility model, the medicine storage bottle and the bottle mouth component are designed as an integral unit, and threads are installed on both the outer side wall of the bottle mouth component and the inner side wall of the connecting groove.

[0014] As a preferred embodiment of this utility model, the outer side wall of the connector and the inner side wall of the bottle mouth are both provided with threads, the connector and the bottle mouth are threadedly connected, and the bottle mouth is connected to the medicine storage bottle.

[0015] As a preferred embodiment of this utility model, the medicine storage bottle is threadedly connected between the bottle mouth component and the connecting groove of the fixed base, the connecting component is installed inside the bottle mouth component, the medicine inlet tube passes through the bottle mouth component and is connected to the inside of the medicine storage bottle, and the bottom of the medicine inlet tube is not connected to the bottom of the medicine storage bottle.

[0016] As a preferred embodiment of this utility model, a heat dissipation chamber is provided between the interior of the component housing and the spray section. A heat dissipation fin assembly is provided inside the heat dissipation chamber. A semiconductor cooling chip is provided at the connection of the heat dissipation fin assembly. A cold plate is provided at the connection of the semiconductor cooling chip. An absorption tube is provided inside the cold plate. An output tube is provided at the connection of the absorption tube. The output tube is connected to the spray nozzle. The connecting tube, the absorption tube, and the output tube are interconnected. A cooling fan is also provided on the outer wall of the spray section. The cooling fan is used in conjunction with the heat dissipation chamber and the heat dissipation fin assembly.

[0017] As a preferred embodiment of this utility model, a dustproof net is provided inside the spray unit and on the back side, a fan is provided on the front of the dustproof net, a ventilation seat is provided on the front of the fan, a plurality of ventilation openings are provided on the ventilation seat, and a control main board is provided on the front of the ventilation seat.

[0018] As a preferred embodiment of this utility model, a mounting base is provided above the pump body, the mounting base is fixedly connected to the handheld part, a rechargeable battery pack is provided inside the mounting base, and a display screen is provided on the outer wall of the handheld part.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] In this invention, through a unique connection design between the medicine storage bottle and the handheld part, the medicine storage bottle can be easily connected and disassembled with the fixed base via threads. When medical staff need to change different types of medicine during postoperative care, they only need to unscrew the old medicine storage bottle and replace it with a new bottle containing the corresponding medicine. Furthermore, the multi-segment threaded connection combination makes its sealing performance better, eliminating the need for the tedious cleaning process of the entire instrument as required by traditional sprayers. This greatly saves the time and energy of medical staff and improves the efficiency of nursing work. For example, when frequently switching between anti-infective medicine and healing-promoting nutritional medicine after surgery, the medicine can be quickly replaced, ensuring the timeliness and accuracy of treatment.

[0021] The design of the auxiliary cooling component allows the sprayed medicine to be at a lower temperature, thus achieving a cooling effect and reducing the patient's pain during medication. Attached Figure Description

[0022] Figure 1 A schematic diagram of the main structure of a liquefied sprayer that integrates washing and care provided by this utility model;

[0023] Figure 2 A schematic cross-sectional view of the handheld part of a liquefied sprayer that integrates washing and care provided by this utility model;

[0024] Figure 3 This utility model provides a liquefied spray device that integrates washing and care. Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0025] Figure 4 A schematic cross-sectional view of the main body of a liquefied sprayer that integrates washing and care provided by this utility model;

[0026] Figure 5 This utility model provides a liquefied spray device that integrates washing and care. Figure 4 Enlarged schematic diagram of the structure at point B;

[0027] Figure 6 A schematic diagram of the internal structure of the auxiliary cooling component of a liquefied sprayer that integrates washing and care provided by this utility model;

[0028] Figure 7 A schematic diagram showing the mounting base and medicine storage bottle of a liquefied sprayer that integrates washing and care provided by this utility model;

[0029] Figure 8 A schematic diagram showing the mounting base and rechargeable battery pack of a liquefied sprayer that integrates washing and care provided by this utility model.

[0030] Figure 9 A schematic diagram showing the connection slot position of a liquefied sprayer that integrates washing and care, provided by this utility model.

[0031] Legend: 1. Handheld part; 2. Spraying part; 3. Spray nozzle; 4. Ventilation seat; 5. Ventilation port; 6. Fan; 7. Dustproof net; 8. Mounting base; 9. Rechargeable battery pack; 10. Pump body; 11. Fixing base; 12. Mounting ring; 13. Sealing bolt; 14. Connector; 15. Inlet tube; 16. Connecting groove; 17. Medicine storage bottle; 18. Bottle mouth piece; 19. Connecting pipe; 20. Display screen; 21. Component housing; 22. Heat dissipation chamber; 23. Heat dissipation fin assembly; 24. Semiconductor cooling chip; 25. Cooling chip; 26. Absorption tube; 27. Cooling fan; 28. Output tube. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0033] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0034] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0036] Example

[0037] like Figure 1-9As shown, this utility model provides a technical solution: a liquefied sprayer that integrates washing and care, including a handheld part 1, a spraying part 2 on the top of the handheld part 1, a component housing 21 inside the spraying part 2, a fixing seat 11 inside the handheld part 1, a mounting ring 12 on the top of the fixing seat 11, a pump body 10 inside the mounting ring 12, and a plurality of sealing bolts 13 between the mounting ring 12 and the fixing seat 11.

[0038] The handheld part 1 is ergonomically designed, with its shape curves conforming to the palm and its surface having an anti-slip texture, making it easy for medical staff to hold stably and reducing fatigue during long-term operation.

[0039] The outer shell of the handheld part 1 is made of medical-grade high-strength plastic, which has good corrosion resistance and lightweight properties, making it easy to use in various medical environments.

[0040] The connection between the spray unit 2 and the handheld unit 1 is specially designed with a sealing ring to ensure a tight connection between the two and prevent leakage of the medicine.

[0041] The mounting base 11 is fixed inside the handheld part 1 by a slot and screws, providing a stable support frame for the entire internal structure. The mounting ring 12 is made of stainless steel, which has high strength and corrosion resistance. Its internal shape is closely matched with that of the pump body 10. The pump body 10 is firmly fixed in the mounting ring 12 by multiple sealing bolts 13. The sealing bolts 13 adopt an anti-loosening nut design to prevent the bolts from loosening due to vibration during the operation of the sprayer, thereby affecting the working stability and sealing of the pump body 10.

[0042] This structural design, through the close cooperation and fixing of various components, constructs a stable and well-sealed internal frame. The stable support of the fixing seat 11 ensures that other components will not be displaced during operation. The fixing method of the mounting ring 12 and sealing bolt 13 to the pump body 10 can withstand the vibration and pressure generated when the pump body 10 is working, ensuring that the inlet and outlet of the pump body 10 are tightly connected to the relevant pipelines, maintaining stable liquid delivery and spray pressure.

[0043] The fixed base 11 has a connecting groove 16 inside, the connecting groove 16 has a connector 14 inside, the bottom of the connector 14 has a medicine inlet tube 15, the inside of the medicine inlet tube 15 has a medicine storage bottle 17, and the top of the medicine storage bottle 17 has a bottle mouth part 18.

[0044] The inner wall of the connecting groove 16 is precision-machined, featuring a smooth surface and precise dimensional tolerances to ensure that the bottle neck 18 can be smoothly screwed in and form a good seal. The connector 14 is made of medical-grade silicone, possessing a certain degree of flexibility and good sealing performance. Its bottom inlet tube 15 extends into the interior of the medication storage bottle 17, with an angled end for better medication aspiration. The medication storage bottle 17 is made of transparent medical-grade plastic, allowing medical staff to easily observe the remaining amount of medication. Its capacity is designed in various sizes, such as 50ml and 100ml, to meet the needs of different surgical scales and nursing durations. The top edge of the bottle neck 18 has a raised sealing ring, further enhancing the sealing effect when connected to the connecting groove 16 and the connector 14.

[0045] The precision machining and threaded structure of the connecting groove 16, in conjunction with the threaded engagement of the bottle mouth part 18, achieves accurate positioning and connection. The silicone material of the connector 14 provides additional sealing performance on the basis of the threaded connection, adapting to different assembly pressures and temperature changes. The beveled end and deep-penetration design of the inlet tube 15 are based on fluid mechanics principles, reducing resistance during liquid absorption and ensuring stable delivery of liquid to the pump body 10 under different liquid levels.

[0046] The medicine storage bottle 17 and the bottle mouth part 18 are designed as one piece, and threads are installed on the outer side wall of the bottle mouth part 18 and the inner side wall of the connecting groove 16.

[0047] The integrated design of the medicine storage bottle 17 and the bottle mouth part 18 is achieved through injection molding, ensuring that there are no gaps between the two and reducing the possibility of medicine residue and bacterial growth.

[0048] The thread on the outer wall of the bottle neck part 18 adopts a fine tooth profile design, such as a triangular thread, which has good self-locking and sealing performance. The thread on the inner wall of the connecting groove 16 matches it, and transition fillets are designed at the beginning and end of the thread to facilitate the screwing in and out of the bottle neck part 18, while avoiding damage to the thread during the connection process.

[0049] When the bottle neck part 18 is screwed into the connecting groove 16, the inclined surfaces of the triangular thread squeeze each other to generate friction and sealing force, preventing the medicine from seeping out from the connection. The transition fillets at the beginning and end of the thread in the connecting groove 16 reduce stress concentration during threaded connection, improve the reliability and durability of the connection, ensure that the thread will not be damaged during multiple disassembly and installation, and maintain good sealing performance.

[0050] Both the outer side wall of the connector 14 and the inner side wall of the bottle mouth part 18 are provided with threads, the connector 14 and the bottle mouth part 18 are threadedly connected, and the bottle mouth part 18 is connected to the medicine storage bottle 17.

[0051] The thread pitch and tooth profile of the outer wall of connector 14 and the inner wall of bottle neck 18 are precisely designed to ensure a tight and stable connection between the two. A sealing groove is also designed in the threaded part of connector 14, and an O-ring is installed in the groove. When connector 14 is connected to bottle neck 18, the O-ring is squeezed and deformed, filling the tiny gap between the threads, further enhancing the sealing effect. The connection between bottle neck 18 and medicine storage bottle 17 adopts a smooth transition design to avoid the medicine from swirling or stagnating during the flow process, ensuring that the medicine can smoothly enter the medicine inlet tube 15.

[0052] The combination of double threaded connection and O-ring seal forms a multi-layer sealing mechanism. The threaded connection between connector 14 and bottle neck 18 provides basic connection and sealing force, while the O-ring seal fills the gap between the threads at the micro level to prevent leakage of medicine. This design ensures sealing performance while also being able to adapt to a certain degree of temperature change and pressure fluctuation, ensuring stable medicine delivery under various operating conditions.

[0053] The medicine storage bottle 17 is threadedly connected to the connecting groove 16 of the fixed base 11 through the bottle mouth part 18. The connector 14 is installed inside the bottle mouth part 18. The medicine inlet tube 15 passes through the bottle mouth part 18 and is connected to the inside of the medicine storage bottle 17. The bottom of the medicine inlet tube 15 is not connected to the bottom of the medicine storage bottle 17.

[0054] After the connector 14 is fixed inside the bottle mouth part 18 by a threaded connection, its position is further precisely defined by the positioning pin to ensure that the position of the inlet tube 15 is stable inside the medicine storage bottle 17. The bottom of the inlet tube 15 is kept at a certain distance from the bottom of the medicine storage bottle 17, usually 5-10mm. This distance is determined according to the flow characteristics and sedimentation rules of the medicine, which can avoid the intake of sediment impurities that may exist at the bottom, and ensure that the medicine can still be effectively drawn when the remaining amount of medicine is small.

[0055] The gap design at the bottom of the inlet tube 15 takes into account the physical properties of the liquid and the usage scenario, and utilizes the principle of natural flow and diffusion of liquid to ensure stable absorption and delivery under different liquid conditions.

[0056] The component housing 21 serves as the external protective structure for the entire device, providing physical protection for the various internal components. It also creates a heat dissipation chamber 22 between itself and the spray unit 2. The design of the heat dissipation chamber 22 is based on the principles of heat conduction and heat convection, providing a relatively independent and enclosed space environment for heat dissipation. By limiting the heat transfer and diffusion path within this specific area, the subsequent heat dissipation components can process the heat more efficiently. For example, in a relatively enclosed space, heat is more likely to accumulate around heat dissipation components such as heat dissipation fins, increasing the chance of heat contact with the heat dissipation components, thereby improving the efficiency of heat exchange.

[0057] The heat sink assembly 23 consists of multiple metal heat sink fins. Its working principle is based on increasing the heat dissipation area to enhance heat conduction and heat convection. The metal heat sink fins are usually made of materials with good thermal conductivity, such as aluminum alloys. Each heat sink fin has a large surface area. When heat is conducted from the connected thermoelectric cooler 24, the heat will quickly spread on the heat sink fins. Due to the temperature difference between the heat sink fins and the surrounding air, according to the principle of heat convection, the air will continuously carry away heat from the surface of the heat sink fins, so that the heat sink fins can continuously dissipate heat to the surrounding environment. The combination and arrangement of numerous heat sink fins further increases the total heat dissipation area, greatly improves the heat dissipation capacity of the entire assembly, and ensures that the heat-dissipating end of the thermoelectric cooler 24 can effectively release heat and maintain the low temperature effect of its cooling end.

[0058] The semiconductor thermoelectric cooler 24 utilizes the Peltier effect. When direct current passes through a thermocouple composed of two different semiconductor materials (such as P-type and N-type semiconductors), a temperature difference is generated at both ends of the thermocouple. The principle is based on the movement of charge carriers (electrons and holes) inside the semiconductor material under the action of an electric field and the energy transfer at the interface between different materials. At one end of the thermoelectric cooler 25, charge carriers transition from a low energy level to a high energy level, absorbing heat and thus achieving a cooling effect. At the other end, charge carriers transition from a high energy level to a low energy level, releasing heat. By reasonably setting the current direction, the hot and cold ends of the thermoelectric cooler 25 can be precisely controlled, so that one end is closely connected to the cold plate 25 to transfer the cooling energy to the cold plate 25 for cooling the liquid, and the other end is connected to the heat dissipation fin assembly 23 to dissipate the generated heat.

[0059] As a key component for heat transfer, the cooling plate 25 has an internal absorption tube 26 that is responsible for repeatedly contacting the liquid medicine with the cooling plate 25. The material of the cooling plate 25 has good thermal conductivity, which can quickly receive the cold energy from the semiconductor cooling chip 24 and evenly transfer it to the absorption tube 26. The absorption tube 26 is usually made of a metal with good thermal conductivity. Its meandering and spiraling structure design increases the residence time of the liquid medicine in the cooling plate 25 and the contact area with the cooling plate 25. When the liquid medicine flows in the absorption tube 26, due to the temperature difference between the tube wall of the absorption tube 26 and the cooling plate 25, the heat of the liquid medicine will be absorbed according to the principle of heat conduction, thereby causing the internal temperature to gradually decrease.

[0060] After being cooled by the absorption tube 26, the liquid medicine flows through the output tube 28 to the spray nozzle 3. The material and structure of the output tube 28 must ensure that the low temperature of the liquid medicine during transmission is not affected by the external environment, and at the same time, it must have good sealing performance to prevent leakage. When the liquid medicine reaches the spray nozzle 3, it is atomized into tiny droplets by the spraying device. The design of the spray nozzle 3 usually adopts a special nozzle structure, which uses the principle of pressure difference or ultrasonic vibration to disperse the liquid medicine into fine sprays so as to evenly cover the skin surface that needs to be cooled. Through the principle of heat absorption by liquid evaporation, the heat on the skin surface is further removed to achieve the effect of cooling.

[0061] A cooling fan 27 is mounted on the outer wall of the spray section 2 and works in conjunction with the heat dissipation chamber 22 and the heat dissipation fin assembly 23. Its operating principle is based on forced convection; when the cooling fan 27 rotates, it accelerates the airflow within the heat dissipation chamber 22. This high-speed airflow carries away heat from the surface of the heat dissipation fin assembly 23 more quickly, lowering the temperature of the air surrounding the heat dissipation fin assembly 23 and thus increasing the temperature difference between the heat dissipation fin assembly 23 and the surrounding air. According to the principle of thermal convection, this increased temperature difference helps improve heat exchange efficiency, allowing the heat dissipation fin assembly 23 to more quickly dissipate the heat transferred from the thermoelectric cooler 24 to the surrounding environment, ensuring the normal operation of the thermoelectric cooler 24 and maintaining stable cooling performance of the entire system.

[0062] The pump body 10 adopts a miniature diaphragm pump, in which the diaphragm inside is driven by electromagnetic force or motor to reciprocate, thereby generating the function of suction and push of medicine.

[0063] The connecting tube 19 is made of medical-grade silicone tubing, which has good flexibility and corrosion resistance. Its inner diameter and length are optimized according to the flow rate and spray pressure requirements of the pump body 10 to ensure that the liquid will not generate excessive pressure loss during delivery.

[0064] Spray nozzle 3 uses an ultrasonic atomizing nozzle. The ultrasonic transducer inside the nozzle converts electrical energy into high-frequency mechanical vibration, causing the liquid medicine to be sprayed out as tiny droplets under the action of vibration. The diameter of the spray nozzle 3 is precisely machined, usually between 10-50 micrometers, which can produce a uniform and delicate spray effect, meeting the requirements of postoperative skin care for the degree of liquid medicine atomization.

[0065] The working principle of the micro diaphragm pump is based on the periodic deformation of the diaphragm. When the diaphragm moves backward, the pump chamber volume increases and the pressure decreases, and the liquid medicine is drawn into the pump chamber through the inlet pipe 15. When the diaphragm moves forward, the pump chamber volume decreases and the pressure increases, and the liquid medicine is pushed to the connecting pipe 19.

[0066] The optimized design of the connecting pipe 19 is based on the pressure loss formula in fluid mechanics. By selecting an appropriate inner diameter and length, the frictional resistance and local resistance of the liquid during transportation are reduced. The ultrasonic atomizing nozzle uses the cavitation effect of ultrasound to generate tiny bubbles inside the liquid. When the bubbles burst, they tear the liquid into tiny droplets and spray them out. The size of the nozzle diameter determines the droplet size distribution and the uniformity of the spray.

[0067] A dustproof net 7 is provided inside the spray unit 2 and on the back side. A fan 6 is provided on the front of the dustproof net 7. A ventilation seat 4 is provided on the front of the fan 6. Several ventilation holes 5 are provided on the ventilation seat 4. A control main board is provided on the front of the ventilation seat 4.

[0068] The dust filter 7 adopts a multi-layer stainless steel filter structure. The mesh size of each layer of the filter gradually decreases, filtering out dust particles of different sizes from the outside to the inside. The outermost layer has larger meshes, which can block larger foreign objects, while the inner layers have gradually smaller meshes, which can effectively filter out tiny dust particles. The overall filtration efficiency can reach over 99%.

[0069] The fan 6 is a low-noise, high-speed DC fan with a special aerodynamic design that reduces noise while ensuring sufficient airflow. The ventilation seat 4 is made of aluminum alloy, which has good thermal conductivity. The shape and distribution of its ventilation openings 5 ​​are optimized to ensure that the airflow can flow evenly over the heat-generating components, such as the pump body 10 and the control motherboard. The control motherboard integrates multiple functional modules such as a microprocessor, a drive circuit, and a power management circuit. The microprocessor is responsible for controlling the entire sprayer's workflow, including starting and stopping the pump body 10, adjusting the speed of the fan 6, and switching the spray mode. The drive circuit provides appropriate drive signals to the pump body 10 and the fan 6. The power management circuit is responsible for monitoring the charge level of the rechargeable battery pack 9 and managing its charging and discharging.

[0070] The dustproof principle of the multi-layer stainless steel filter is based on the obstruction effect of particles of different sizes when passing through the filter. As the mesh size gradually decreases, it can intercept dust of different sizes in sequence, preventing dust from entering the equipment and affecting the normal operation of the components. The aerodynamic design of fan 6 is based on Bernoulli's equation. By optimizing the shape and angle of the blades, the wind pressure and air volume of fan 6 are improved, so that the air can flow quickly and effectively.

[0071] The aluminum alloy material of the ventilation seat 4 and the design of the ventilation port 5 utilize the principles of heat conduction and convection to quickly transfer the heat generated by the heating component to the surface of the ventilation seat 4, and then carry away the heat through air convection, ensuring that the internal temperature of the equipment is kept within the normal operating range. This allows the various circuit modules on the control board to work together to achieve intelligent control of the entire sprayer.

[0072] A mounting base 8 is provided above the pump body 10. The mounting base 8 is fixedly connected to the handheld part 1. A rechargeable battery pack 9 is provided inside the mounting base 8. A display screen 20 is provided on the outer wall of the handheld part 1.

[0073] The mounting base 8 is made of plastic and has a dedicated battery compartment inside. The rechargeable battery pack 9 is securely installed in the battery compartment through slots and fixing straps to prevent the battery from shifting during movement.

[0074] The rechargeable battery pack 9 uses lithium-ion batteries, which have high energy density and long cycle life, and can meet the needs of multiple uses of the sprayer. The display screen 20 uses a liquid crystal display screen (LCD) or an organic light-emitting diode display screen (OLED), which is connected to the control motherboard through a data bus and can display the battery pack's power information, charging status, spraying mode, etc. in real time.

[0075] Indicator lights are also designed around the display screen 20 to indicate the working status of the sprayer. For example, a green indicator light indicates normal operation, while a red indicator light indicates low battery or malfunction.

[0076] The working principle of lithium-ion batteries is based on the process of lithium ions being inserted and extracted between the positive and negative electrodes. During charging, lithium ions are extracted from the positive electrode and inserted into the negative electrode through the electrolyte; during discharging, lithium ions are extracted from the negative electrode and inserted into the positive electrode, thereby realizing the storage and release of electrical energy.

[0077] The display screen 20 communicates with the control motherboard via a data bus, receives power data sent by the control motherboard, and converts it into intuitive graphics or numbers on the screen according to a preset display algorithm. The indicator lights are controlled by the control motherboard to turn on and off and change color according to the working status of the equipment, providing medical staff with quick and intuitive equipment status information.

[0078] In practical use, the following steps are required:

[0079] For initial installation, medical staff first check whether the new medicine storage bottle 17 is sealed properly and whether the internal medicine is uncontaminated. Then, holding the medicine storage bottle 17, they align the bottle neck 18 with the connecting groove 16 inside the fixing base 11 and slowly rotate the bottle neck 18 in the direction marked on the connecting groove 16 (usually clockwise). During the rotation, the threads on the outer wall of the bottle neck 18 and the threads on the inner wall of the connecting groove 16 gradually engage tightly. At the same time, they observe whether there is any leakage of medicine or abnormal resistance at the connection point. When the bottle neck 18 is screwed into the specified depth (judged according to the screwing depth marking), they stop rotating. At this point, the medicine storage bottle 17 has been initially installed in place.

[0080] Next, insert the connector 14 into the bottle neck 18, aligning the outer thread of the connector 14 with the inner thread of the bottle neck 18. Then, rotate the connector 14 clockwise until it is securely installed. During the rotation, ensure that the inlet tube 15 at the bottom of the connector 14 is smoothly inserted into the medicine storage bottle 17 without contacting the bottom of the bottle. At the same time, ensure that the O-ring on the connector 14 is deformed during the threaded connection process to achieve a good sealing effect.

[0081] Before powering on, medical staff press the power button on the sprayer (located on the side of the handheld part 1). The sprayer starts up. At this time, the control board first performs a self-test program to check whether the pump body 10, fan 6, display screen 20, power monitoring circuit and other components are working properly.

[0082] At the same time, the display screen 20 lights up, showing the current power information of the rechargeable battery pack 9. Medical staff can check the display screen 20. If the power level is lower than the set threshold (such as 20%), the sprayer needs to be connected to the matching charger for charging. During charging, the display screen 20 will show the charging progress and the estimated full charge time.

[0083] For spraying operation, after confirming that the sprayer has sufficient power and has passed the self-test, medical staff can select the appropriate spraying mode, such as continuous spraying mode or intermittent spraying mode, according to the patient's postoperative care needs by using the operation buttons on the control board (located on the handheld part 1 or the spraying part 2).

[0084] After selecting the spray mode, press the spray start button again. After receiving the instruction, the control board sends a start signal to the pump body 10, and the pump body 10 starts to work. The diaphragm inside the micro diaphragm pump reciprocates at the set frequency, drawing the medicine from the medicine storage bottle 17 through the medicine inlet pipe 15 into the pump chamber, and then through the connecting pipe 19 to the auxiliary cooling component, and finally to the spray nozzle 3.

[0085] At this time, the auxiliary cooling component will start working. Current passes through the semiconductor cooling chip 24. According to the Peltier effect, one end of the cooling chip 25 begins to cool, and the cooling energy is transferred to the connected cooling chip 25.

[0086] Driven by the connecting tube 19, the liquid medicine flows into the absorption tube 26 inside the cold plate 25. In the absorption tube 26, the liquid medicine exchanges heat with the cold plate 25, and the heat is absorbed by the cold plate 25, thus lowering the temperature of the liquid medicine.

[0087] The cooled liquid medicine flows through the output pipe 28 to the spray nozzle 3.

[0088] At the same time, the cooling fan 27 starts, accelerating the airflow in the cooling chamber 22. The heat dissipation fin assembly 23 dissipates the heat generated at the other end of the semiconductor cooling chip 24 into the surrounding air, maintaining the temperature difference between the two ends of the cooling chip 25 and ensuring the continuous and stable cooling effect, so that the spray nozzle 3 can continuously spray out low-temperature liquid to form a cold compress spray, which is applied to the area that needs a cold compress.

[0089] After receiving electrical energy, the ultrasonic transducer inside the ultrasonic atomizing nozzle generates high-frequency mechanical vibration, which causes the liquid medicine to be rapidly atomized into tiny droplets under the action of vibration and sprayed evenly from the spray nozzle 3, covering the patient's postoperative skin surface. During the spraying process, the control board controls the working status of the pump body 10 according to the set spray mode parameters, such as spray time interval and spray volume.

[0090] At the same time, the fan 6 also starts to work. The low-noise, high-speed DC fan 6 generates airflow by rotating its blades. The airflow enters from the dustproof net 7 on the back side of the spray section 2, passes through the ventilation port 5 of the ventilation seat 4, and carries away the heat generated by the pump body 10 and the control board and other heat-generating components, ensuring that the internal temperature of the equipment is stable within the normal working range and preventing damage to components or a decrease in spray effect due to overheating.

[0091] When changing the medication, if it is necessary to change to a different type of medication, medical staff should first press the stop button on the nebulizer to stop the pump 10 from working and stop the spraying.

[0092] Then, rotate the bottle neck 18 of the medicine storage bottle 17 counterclockwise to separate it from the connecting groove 16 of the fixing seat 11. During the rotation, be careful to keep it steady and avoid spilling the medicine. After the bottle neck 18 is completely unscrewed from the connecting groove 16, carefully remove the old medicine storage bottle 17.

[0093] Following the initial installation steps described above, install the new medicine storage bottle 17 containing the appropriate medicine solution onto the sprayer, and then continue the spraying nursing operation. Throughout the use, medical staff can check the working status and power information of the sprayer at any time through the display screen 20 on the outer wall of the handheld part 1, so as to adjust the operation or perform maintenance in a timely manner.

[0094] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A liquefied spray device integrating washing and care, comprising a handheld unit (1), characterized in that: The handheld part (1) has a spray section (2) at the top, a component housing (21) inside the spray section (2), a spray nozzle (3) inside the spray section (2) and located on the front, a fixed seat (11) inside the handheld part (1), a mounting ring (12) at the top of the fixed seat (11), a pump body (10) inside the mounting ring (12), a plurality of sealing bolts (13) between the mounting ring (12) and the fixed seat (11), a connecting groove (16) inside the fixed seat (11), a connector (14) inside the connecting groove (16), a medicine inlet pipe (15) at the bottom of the connector (14), a medicine storage bottle (17) inside the medicine storage bottle (15), and a bottle mouth piece (18) at the top of the medicine storage bottle (17). The top of the pump body (10) is provided with a connecting pipe (19), and an auxiliary cooling component is provided at the connection of the connecting pipe (19). The auxiliary cooling component is used to cool the liquid medicine in the connecting pipe (19) and then spray it. The auxiliary cooling component includes a heat dissipation fin assembly (23), a semiconductor cooling chip (24), a cold chip (25), an absorption pipe (26), and a cooling fan (27).

2. The liquefied spray device integrating washing and care according to claim 1, characterized in that: The medicine storage bottle (17) and the bottle mouth part (18) are designed as an integral unit, and the outer side wall of the bottle mouth part (18) and the inner side wall of the connecting groove (16) are both provided with threads.

3. The liquefied spray device integrating washing and care according to claim 2, characterized in that: The outer side wall of the connector (14) and the inner side wall of the bottle mouth (18) are both provided with threads. The connector (14) and the bottle mouth (18) are threadedly connected, and the bottle mouth (18) is connected to the medicine storage bottle (17).

4. The liquefied spray device integrating washing and care according to claim 3, characterized in that: The medicine storage bottle (17) is threadedly connected to the connecting groove (16) of the fixed base (11) through the bottle mouth part (18). The connecting part (14) is installed inside the bottle mouth part (18). The medicine inlet tube (15) passes through the bottle mouth part (18) and connects to the inside of the medicine storage bottle (17). The bottom of the medicine inlet tube (15) is not connected to the bottom of the medicine storage bottle (17).

5. A liquefied spray device integrating washing and care according to claim 4, characterized in that: A heat dissipation chamber (22) is provided inside the component housing (21) and between the spray section (2). A heat dissipation fin assembly (23) is provided inside the heat dissipation chamber (22). A semiconductor cooling chip (24) is provided at the connection of the heat dissipation fin assembly (23). A cold plate (25) is provided at the connection of the semiconductor cooling chip (24). An absorption tube (26) is provided inside the cold plate (25). An output tube (28) is provided at the connection of the absorption tube (26). The output tube (28) is connected to the spray nozzle (3). The connecting pipe (19), the absorption tube (26) and the output tube (28) are connected. A cooling fan (27) is also provided on the outer wall of the spray section (2). The cooling fan (27) is used in conjunction with the heat dissipation chamber (22) and the heat dissipation fin assembly (23).

6. The liquefied spray device integrating washing and care according to claim 5, characterized in that: The spray unit (2) is provided with a dustproof net (7) inside and on the back side. A fan (6) is provided on the front of the dustproof net (7). A ventilation seat (4) is provided on the front of the fan (6). Several ventilation holes (5) are provided on the ventilation seat (4). A control main board is provided on the front of the ventilation seat (4).

7. A liquefied spray device integrating washing and care according to claim 6, characterized in that: The pump body (10) is also provided with a mounting base (8) above it. The mounting base (8) is fixedly connected to the handheld part (1). The mounting base (8) is provided with a rechargeable battery pack (9) inside. The handheld part (1) is provided with a display screen (20) on its outer side wall.

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