An otolaryngology flush device for ease of use

Abstract

The application relates to the technical field of medical devices, and more specifically discloses a convenient-to-use flushing device for otolaryngology, which comprises a shell, a mounting cavity arranged at the head of the shell, a battery pack arranged at the tail of the shell, a handle arranged at the lower side of the shell, a water tank detachably connected to the bottom of the handle, a sleeve support fixedly arranged in the mounting cavity, a first reinforcing pipe threadedly connected to the tail end of the sleeve support, a gas bag arranged on the circumferential surface of the first reinforcing pipe, a plurality of convex points arranged on the outside of the gas bag, a second reinforcing pipe threadedly connected to the inside of the first reinforcing pipe, a nozzle piece inserted into the second reinforcing pipe from the outside to the inside, and a water pump mechanism arranged between the shell, the handle and the water tank and used for outputting liquid medicine into the nozzle piece; the device can be dynamically adapted to the ear-nose-pharynx cavity of different people, the gas bag can be attached to the inner wall of the cavity after being inflated, liquid medicine can be prevented from leaking out or being incompletely flushed in a local position, and the use adaptability and safety are improved.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and more specifically to an easy-to-use irrigation device for otolaryngology. Background Technology

[0002] In the clinical treatment of ENT patients, a large number of bacteria or postoperative blood may remain in the ear, nose and throat areas. In particular, nasal irrigation is an important means of treating rhinitis and sinusitis and postoperative care. It can effectively remove purulent discharge, bacteria, allergens and other substances from the nasal cavity and improve nasal ventilation and mucosal environment.

[0003] Patent No. CN120204501A discloses an otolaryngology irrigation device, belonging to the field of medical equipment technology. It includes a tank with a connecting tube integrally formed on the top surface. A slider is installed inside the connecting tube, and a guide tube is located at the center of the slider. An annular sliding plate and a pressure ring are sleeved on the outside of the connecting tube, with the pressure ring positioned below the sliding plate. Through a compression component, the slider can move vertically within the connecting tube during its reciprocating rotation. When the slider moves downwards, it can squeeze the cleaning fluid in the tank into the guide tube, which then discharges it. Furthermore, a drainage component can draw the cleaning fluid from the guide tube into the slider, preventing leakage of the cleaning fluid through the top of the guide tube.

[0004] However, existing irrigation devices have many drawbacks: First, they have poor adaptability. The size and shape of the ENT cavities vary significantly among different groups, and the cavity status of the same patient changes dynamically at different treatment stages. Traditional fixed-size rigid irrigation heads cannot achieve precise fit, which can easily lead to leakage of irrigation fluid, causing contamination, or create blind spots in the local irrigation process, affecting the cleaning effect. Second, they are not safe enough. To avoid leakage, some devices need to be forcibly inserted into the cavity. Rigid irrigation heads can easily compress and scratch the fragile mucosa, especially in children, postoperative patients, or people with sensitive nasal mucosa, which may cause pain, bleeding, or even aggravate mucosal damage. Third, the irrigation effect is limited, and the ease of use is poor. The temperature of the solution cannot be precisely controlled, and low or high temperature solutions can easily cause discomfort to the mucosa. At the same time, the device is complex to assemble and cumbersome to maintain and disassemble, which is not conducive to efficient clinical operation. Therefore, we propose an easy-to-use irrigation device for ENT. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides an easy-to-use irrigation device for otolaryngology to solve the problems existing in the background art.

[0006] This invention provides the following technical solution: a user-friendly rinsing device for otolaryngology, wherein the outer shell has a mounting cavity at the head, a battery pack at the tail, and a handle on the lower side, with a water tank detachably connected to the bottom of the handle. A sleeve support is fixedly installed inside the mounting cavity, and a first reinforcing tube is threaded to the end of the sleeve support. An air bladder is fitted around the circumference of the first reinforcing tube, and the air bladder has several protrusions on its exterior, the protrusions being hemispherical and hollow inside. A second reinforcing tube is threaded to the inside of the first reinforcing tube, and a nozzle is inserted from the outside to the inside of the second reinforcing tube. The nozzle has a conical head at the head and a tapered section at the tail, with a circular section near the tail. A sealing ring is fixedly connected to the circumferential surface, with a first positioning hole in its middle section and a spiral groove on its inner wall. A water pump mechanism is provided between the outer shell, handle, and water tank to output liquid medicine into the nozzle. An inflation mechanism is provided between the outer shell and the sleeve support to inflate the airbag. A control button electrically connected to the PLC controller is provided on the surface of the handle. A display screen is installed on the surface of the outer shell. A heater and a temperature sensor are provided inside the water tank. The water pump mechanism, inflation mechanism, battery pack, display screen, heater, and temperature sensor are all electrically connected to the PLC controller to realize real-time monitoring and precise control of temperature, pressure, and liquid level data.

[0007] Furthermore, the water pump mechanism includes a miniature water pump, an inlet pipe, a weighted ball, an extension pipe, and a rubber sleeve. The miniature water pump is fixedly connected to the handle, the inlet pipe is fixedly connected to the water inlet end of the miniature water pump, and its end is located in the water tank and fixedly connected to the weighted ball. The end of the extension pipe is sealed to the rubber sleeve, and the tail of the nozzle is inserted into the rubber sleeve through a reduced diameter section. The inside of the rubber sleeve is provided with a sealing groove that matches the sealing ring.

[0008] Furthermore, the inflation mechanism includes a miniature air pump, an air guide tube, and a sealing joint. The miniature air pump is fixedly connected inside the outer shell, one end of the air guide tube is fixedly connected to the air outlet of the miniature air pump, and the other end of the air guide tube is connected to the air inlet of the airbag through the sealing joint.

[0009] Furthermore, the inner surface of the water tank is provided with a liquid level scale, a heater and a temperature sensor are fixedly installed at the bottom of the handle, the top of the water tank is assembled to the bottom of the handle by a snap-fit, and after assembly, the liquid inlet pipe and the heater are both located inside the water tank.

[0010] Furthermore, a hollow rod is fixedly connected to one end of the sleeve support near the outer shell. The hollow rod is fixedly connected to the inner wall of the mounting cavity by bolts. A positioning nut is threaded on the circumferential surface of the sleeve support, and the position of the positioning nut corresponds to the first positioning hole.

[0011] Furthermore, a sliding sleeve is slidably connected inside the mounting cavity, the sleeve support is located inside the sliding sleeve, a protective channel for assembling with the air guide tube is provided inside the sliding sleeve, a limiting rod is fixedly connected to the inner wall of the sliding sleeve, the end of the limiting rod is slidably connected to the hollow rod, and a small spring is sleeved on the circumferential surface of the limiting rod.

[0012] Furthermore, a second positioning hole is provided near the air inlet of the airbag in the first reinforcing tube, so that the sealing joint can pass through the second positioning hole to connect the air guide tube and the air inlet.

[0013] The technical effects and advantages of this invention are as follows: 1. The present invention, by providing an airbag fitted onto the first reinforcing tube, an inflation mechanism for inflating the airbag, and protrusions inside the airbag, facilitates dynamic adaptation of the device to the ear, nose, and throat cavities of different individuals. After inflation, the airbag can fit against the inner wall of the cavity, preventing leakage of irrigation fluid or inadequate local irrigation. The protrusions can enhance the friction between the airbag and the cavity, prevent device displacement, and reduce the direct contact area between the airbag and the mucosa, thereby reducing pressure damage to children and patients with fragile mucosa and improving usability and safety.

[0014] 2. This invention, with its liquid level scale in the water tank, heater and temperature sensor at the bottom of the handle, and display screen electrically connected to the PLC controller, facilitates precise control of the amount and temperature of the rinsing solution: the liquid level scale allows for intuitive control of the amount of solution added, preventing pump cavitation or solution overflow; the heater and temperature sensor work together to stabilize the solution temperature within a suitable range for the human body, reducing the irritation of mucous membranes by low or high temperature solutions; the display screen shows the temperature and liquid level data in real time, allowing the operator to make timely adjustments, improving user comfort and controllability.

[0015] 3. This invention, by incorporating a nozzle with a spiral groove, an adjustable positioning nut, and a sliding protective sleeve, optimizes the rinsing effect and facilitates device maintenance: the spiral groove on the inner wall of the nozzle allows the liquid to form a stable spiral water flow, enhancing the cleaning power of the cavity; the positioning nut, in conjunction with the first positioning hole of the nozzle, precisely fixes the nozzle position, preventing nozzle displacement during rinsing; the sliding sleeve can protect internal components such as the air guide tube through sliding, and is easy to inspect and repair when opened, thus balancing operational stability and ease of maintenance. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a side view of the structure of the present invention; Figure 3 This is a cross-sectional view of the overall structure of the present invention; Figure 4 This is a schematic diagram of the assembly structure of the sliding sleeve and sleeve support of the present invention; Figure 5 This is a schematic cross-sectional view of the sliding sleeve and sleeve support of the present invention; Figure 6 This is a schematic diagram of the nozzle component structure of the present invention; Figure 7 This is a schematic diagram of the water pump mechanism of the present invention; Figure 8 This is a schematic diagram of the inflation mechanism of the present invention; Figure 9 This is a schematic diagram of the airbag and cannula support assembly structure of the present invention.

[0017] The attached figures are labeled as follows: 1. Outer shell; 101. Mounting cavity; 2. Handle; 3. Water tank; 4. Nozzle assembly; 401. Conical head; 402. Reduced diameter section; 403. Sealing ring; 404. First positioning hole; 405. Spiral groove; 5. Water pump mechanism; 501. Miniature water pump; 502. Inlet pipe; 503. Weighted ball; 504. Extension pipe; 505. Rubber sleeve; 506. Sealing groove; 6. Airbag; 601. Protrusion; 602. Air inlet; 7. 701. Inflation mechanism; 702. Miniature air pump; 703. Air guide tube; 704. Sealing joint; 8. Battery pack; 801. Charging port; 9. Sliding sleeve; 901. Protective channel; 902. Limiting rod; 903. Small spring; 10. Sleeve support; 1001. Hollow rod; 1002. Positioning nut; 11. First reinforcing tube; 1101. Second positioning hole; 12. Second reinforcing tube; 13. Display screen; 14. Control button; 15. Heater. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The otolaryngological irrigation device that is easy to use is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Reference Figures 1-9This invention provides an easy-to-use rinsing device for otolaryngology. The outer casing 1 has a mounting cavity 101 at its head, a battery pack 8 at its tail, and a handle 2 on its lower side. A water tank 3 is detachably connected to the bottom of the handle 2. A sleeve support 10 is fixedly installed inside the mounting cavity 101. A first reinforcing tube 11 is threadedly connected to the end of the sleeve support 10. An airbag 6 is fitted around the circumference of the first reinforcing tube 11. Several protrusions 601 are provided on the outside of the airbag 6. The protrusions 601 are hemispherical and hollow inside. A second reinforcing tube 12 is threadedly connected inside the first reinforcing tube 11. A nozzle 4 is inserted from the outside to the inside of the second reinforcing tube 12. The nozzle 4 has a conical head 401 at its head and a reduced diameter section 402 at its tail. A sealing ring 403 is fixedly connected to the circumferential surface of the nozzle 4, with a first positioning hole 404 in the middle section and a spiral groove 405 on its inner wall. A water pump mechanism 5 is provided between the outer shell 1, the handle 2 and the water tank 3 to output the medicine into the nozzle 4. An inflation mechanism 7 for inflating the airbag 6 is provided between the outer shell 1 and the sleeve support 10. A control button 14 electrically connected to the PLC controller is provided on the surface of the handle 2. A display screen 13 is installed on the surface of the outer shell 1. A heater 15 and a temperature sensor are provided inside the water tank 3. The water pump mechanism 5, the inflation mechanism 7, the battery pack 8, the display screen 13, the heater 15 and the temperature sensor are all electrically connected to the PLC controller to realize real-time monitoring and precise control of temperature, pressure and liquid level data.

[0020] In this embodiment, it should be specifically noted that: the mounting cavity 101 provides a fixed space for the cannula support 10; the tail battery pack 8 supplies power to the entire device and needs to be pre-charged through the charging port 801 to ensure a single-use battery life of no less than half an hour; the lower handle 2 is ergonomically designed with a diameter of 3-3.5cm and a length of 10-12cm, making it easy for medical personnel to operate with one hand and avoid fatigue from prolonged use. The handle 2 and the water tank 3 are connected by a snap-fit ​​detachable connection, with a disassembly and assembly time of ≤10 seconds, which facilitates quick addition of medicine and allows for thorough cleaning and disinfection of the inner wall of the water tank 3 after use; it can withstand high-temperature disinfection below 80℃ or wiping disinfection with 75% alcohol; the threaded connection between the cannula support 10 and the first reinforcing tube 11 uses M8-M10 medical-grade threads, combined with medical sealing rings, to ensure a firm connection and no leakage of medicine; the airbag 6 on the circumferential surface of the first reinforcing tube 11 uses an interference fit. The sleeve fits snugly against the tube when uninflated, with a thickness of 1-1.5mm. When inflated, it can expand outward by 0.5-1.2cm to accommodate the cavities of different people, such as the nasal cavity or ear canal. The protrusions 601 have a diameter of 1-1.5mm, a height of 0.5mm, and are evenly distributed at intervals of 2-3mm. On the one hand, they can enhance the friction between the airbag 6 and the inner wall of the affected area, preventing the device from shifting during rinsing. On the other hand, they can reduce the direct large-area contact between the airbag 6 and the mucous membrane, reducing the discomfort caused by pressure. The first reinforcing tube 11 and the second reinforcing tube 12 are also connected by threads. After the nozzle 4 is inserted into the second reinforcing tube 12, it is fixed by engaging with the positioning nut 1002 through the first positioning hole 404 in the middle section to prevent axial sliding of the nozzle 4 during rinsing and ensure accurate rinsing position. The display screen 13 is a medical-grade high-definition LCD screen, which is embedded in the pre-set mounting groove on the surface of the outer shell 1 to ensure that the surface is flush with the outer wall of the outer shell, avoiding protrusion, scratches, or dust accumulation. The edge is filled with medical-grade waterproof sealant between itself and the inner wall of the mounting groove, achieving an IP65 protection level to prevent splashed medicine from seeping into the interior and causing malfunctions. The display interface of the display screen 13 is designed according to functional areas, including real-time display of cleaning fluid temperature, airbag pressure, rinsing pressure, water tank level, etc., ensuring clear information reading.

[0021] The main difference between this embodiment and the prior art lies in the use of an inflatable adaptable airbag and an integrated temperature and pressure control system. Specifically, in the prior art, most rinsing devices use rigid rinsing heads of fixed size, which cannot match the ear, nose, and throat cavity structures of different people, and are prone to leakage or mucosal compression problems. In this solution, an airbag 6 with protrusions 601 is fitted on the circumferential surface of the first reinforcing tube 11, and precise inflation and deflation are achieved through the inflation mechanism 7: when not inflated, the airbag 6 is in a flat state, which is convenient for insertion into the cavity; after inflation, it can expand to the appropriate diameter according to the cavity size, and the protrusions 601 inside the airbag 6 enhance the friction with the inner wall of the cavity, which not only avoids device displacement, but also reduces the discomfort caused by large-area mucosal contact, and achieves a more reasonable dynamic fit effect, completely solving the compatibility problem of fixed rinsing heads. Moreover, when spraying water, the vibration generated by the water pressure, combined with the massage of the inner wall of the cavity by several protrusions 601, makes the patient more comfortable to use. Secondly, this solution includes a heater 15 and a temperature sensor that extend into the water tank 3 at the bottom of the handle 2. The PLC controller stabilizes the temperature of the medicine solution within the human body's suitable range of 32-38℃. At the same time, the output pressure of the water pump mechanism 5 and the inflation pressure of the airbag 6 are monitored in real time by the PLC controller. With the control buttons 14 on the surface of the handle 2 and the display screen 13 on the outer shell 1, medical staff or patients can intuitively view the pressure and temperature data, improving the safety of use.

[0022] The above structure is the main structure of this embodiment, which solves the problem of poor adaptability and uncomfortable use of existing ENT irrigation devices in nasal cavity cleaning scenarios. The micro water pump 501, micro air pump 701, etc. are existing structures. The specific structure and connection method of the heater 15 are not described in detail in this embodiment. In addition, the basic power supply circuit of the battery pack 8, the conventional driving principle of the micro water pump 501, and the general programming logic of the PLC controller are existing technologies. Therefore, this application does not make detailed limitations.

[0023] Reference Figure 3 , Figure 6 and Figure 7 The water pump mechanism 5 includes a miniature water pump 501, an inlet pipe 502, a weighted ball 503, an extension pipe 504, and a rubber sleeve 505. The miniature water pump 501 is fixedly connected to the handle 2. The inlet pipe 502 is fixedly connected to the water inlet end of the miniature water pump 501, and its end is located in the water tank 3 and fixedly connected to the weighted ball 503. The end of the extension pipe 504 is sealed to the rubber sleeve 505. The tail of the nozzle 4 is inserted into the rubber sleeve 505 through the reduced diameter part 402. The inside of the rubber sleeve 505 is provided with a sealing groove 506 that matches the sealing ring 403.

[0024] In this embodiment, it should be specifically noted that: the miniature water pump 501 is a medical-grade silent centrifugal water pump, with a rated voltage matching the output voltage of the battery pack 8. The maximum output flow rate can be adjusted by the PLC controller to adapt to different needs of nasal cavity cleaning, such as "gentle rinsing to avoid mucosal damage" and "powerful cleaning to remove stubborn secretions." Furthermore, the pump casing must be waterproofed to prevent any residual medication from seeping into the handle and causing a short circuit. The inlet pipe 502 is a medical-grade transparent PVC hose, with one end fixedly connected to the inlet of the miniature water pump 501 via a quick-connect coupling, and the other end extending into the water tank 3 and fixed to the weighted ball 503. The weighted ball 503 is made of medical-grade 304 stainless steel. It is hollow inside and connected to the inlet pipe. Its weight ensures that when the remaining liquid in the water tank is low, the end of the inlet pipe 502 is always submerged in the liquid, avoiding the interruption of liquid delivery or the generation of air bubbles that irritate the nasal cavity. At the same time, the surface of the weighted ball needs to be polished to prevent scratching the inner wall of the water tank 3. During operation, the liquid is drawn into the weighted ball 503 through the inlet pipe 502 by the micro water pump 501, then enters the nozzle 4, and finally sprays out through the conical head 401 to achieve automatic water pumping and cleaning.

[0025] Reference Figure 8 and Figure 9 The inflation mechanism 7 includes a miniature air pump 701, an air guide tube 702, and a sealing joint 703. The miniature air pump 701 is fixedly connected inside the outer shell 1. One end of the air guide tube 702 is fixedly connected to the air outlet of the miniature air pump 701, and the other end of the air guide tube 702 is connected to the air inlet 602 of the airbag 6 through the sealing joint 703.

[0026] In this embodiment, it should be specifically noted that: the miniature air pump 701 is a medical-grade bidirectional miniature air pump, supporting positive pressure inflation and negative pressure deflation, with a rated operating voltage matching the output voltage of the battery pack 8, and an inflation pressure range of 0.02-0.05MPa, meeting the adaptation needs of different airbag levels for adults and children; at the same time, the air pump needs to have built-in sound-absorbing cotton, with operating noise ≤50dB, to avoid noise interference to patients during diagnosis and treatment; the air guide tube 702 is a medical-grade PU transparent flexible tube, with good flexibility and aging resistance, to avoid pipe bending and blockage due to movement of device components; the sealing connector 70... 3. Made of medical-grade brass, it fits tightly against the inner wall of the air inlet 602 to prevent gas leakage and ensure stable inflation pressure of the airbag 6. During operation, the control button 14 selects to add or deflate air. The PLC controller sends a start command to the micro air pump 701. The air pump inflates and deflates the airbag 6 through the air guide tube 702 and the sealing connector 703, freely adjusting the internal air pressure of the airbag 6 to ensure that the airbag 6 expands to a comfortable state. If the air pressure abnormally exceeds the safety limit during inflation, the PLC controller automatically controls the micro air pump 701 to deflate, preventing the airbag from over-inflating and compressing the nasal mucosa, and ensuring safe use.

[0027] Reference Figure 3The inner surface of the water tank 3 is provided with liquid level scale. The bottom of the handle 2 is fixedly installed with heater 15 and temperature sensor. The top of the water tank 3 is assembled to the bottom of the handle 2 by means of a buckle. After assembly, the liquid inlet pipe 502 and heater 15 are both located inside the water tank 3.

[0028] In this embodiment, it should be specifically noted that: the water tank 3 is made of medical-grade transparent polypropylene material by injection molding, and the inner wall is set with clear liquid level scales along the height direction. The scale lines are laser engraved, which combines wear resistance and clarity, making it easy to intuitively observe the remaining liquid and replenish it in time to avoid interruption during the rinsing process. The volume design is adapted to the needs of a single nasal cavity cleaning, with a standard capacity of 300-500mL. The top of the tank has a buckle interface that matches the bottom of the handle 2. When disassembling, the buckle can be unlocked to separate the tank. The ease of operation is significantly better than traditional threaded connections. In addition, a medical-grade silicone gasket is attached to the contact surface of the buckle to improve the sealing after assembly and prevent the liquid from leaking from the interface. The heater 15 is a tubular heating element made of medical-grade stainless steel with a power setting of 20-30W. The surface of the part of the heater that extends into the water tank 3 is passivated to avoid scratching the inner wall of the water tank or reacting chemically with the medicine, thus ensuring medication safety. The temperature sensor is a medical-grade NTC thermistor, encapsulated in a waterproof stainless steel shell. The sensor probe is kept 10-15mm away from the heater 15 to avoid direct influence from the heating element, which could lead to temperature detection deviation. The sensor output is connected to the PLC controller through a shielded wire to transmit the temperature data of the medicine in the water tank 3 in real time, providing a precise basis for temperature control.

[0029] Reference Figure 4 , Figure 5 , Figure 6 and Figure 9 The sleeve support 10 is fixedly connected to a hollow rod 1001 at one end near the outer shell 1. The hollow rod 1001 is fixedly connected to the inner wall of the mounting cavity 101 by bolts. A positioning nut 1002 is threaded on the circumferential surface of the sleeve support 10. The position of the positioning nut 1002 corresponds to the first positioning hole 404.

[0030] In this embodiment, it should be specifically explained that: during installation, the nozzle component 4 passes through the sleeve bracket 10, and the inner wall of the mounting cavity 101 is matched with the mounting hole for mounting the hollow rod 1001. At least two hollow rods 1001 are provided. After the end of the hollow rod 1001 is inserted into the mounting hole, the hollow rod 1001 is fixed by tightening the nut, thereby fixing the sleeve bracket 10. The positioning nut 1002 is used to fix the position of the nozzle component 4. After the nozzle component 4 passes through the sleeve bracket 10, the positioning nut 1002 can be rotated to insert it into the first positioning hole 404, thereby preventing the nozzle component 4 from moving radially.

[0031] Reference Figure 9A sliding sleeve 9 is slidably connected inside the mounting cavity 101. The sleeve bracket 10 is located inside the sliding sleeve 9. A protective channel 901 is provided inside the sliding sleeve 9 to cooperate with the air guide tube 702. A limiting rod 902 is fixedly connected to the inner wall of the sliding sleeve 9. The end of the limiting rod 902 is slidably connected to the hollow rod 1001, and a small spring 903 is sleeved on the circumferential surface of the limiting rod 902.

[0032] In this embodiment, it should be specifically explained that: the sliding sleeve 9 slides under the restriction of the mounting cavity 101, and its end will not slide out of the mounting cavity 101. The edge is provided with a slight protrusion to facilitate the direct sliding of the sliding sleeve 9. The protective channel 901 is used to install the air guide tube 702 to prevent the sliding sleeve 9 from affecting the air guide tube 702 when it slides. The limiting rod 902 moves linearly under the restriction of the hollow rod 1001. Under the elastic action of the small spring 903, the sliding sleeve 9 initially fits against the first reinforcing tube 11 to cover the sealing joint 703, the sleeve bracket 10 and the positioning nut 1002. After sliding the sliding sleeve 9, the positioning nut 1002 and the sealing joint 703 can be exposed. At this time, the positioning nut 1002 and the air guide tube 702 can be directly disassembled without disassembling the entire outer shell 1, which is beneficial for later maintenance and replacement of parts.

[0033] Reference Figure 9 A second positioning hole 1101 is opened near the air inlet 602 in the first reinforcing tube 11 so that the sealing joint 703 can pass through the second positioning hole 1101 to connect the air guide tube 702 and the air inlet 602.

[0034] In this embodiment, it should be specifically noted that the edges of the first reinforcing tube 11 and the second reinforcing tube 12 are attached to both ends of the airbag 6 to limit the radial expansion of the airbag 6, and the position of the second positioning hole 1101 corresponds to the air inlet 602 so as to facilitate the direct installation or removal of the air guide tube 702.

[0035] Working principle of the invention: The main problem solved by this embodiment is that by fitting an inflatable airbag 6 with protrusions 601 on the circumferential surface of the first reinforcing tube 11, the airbag 6 can be dynamically adapted to the size of the ear, nose and throat cavities of different people. This solves the problem that the existing fixed-size irrigation head cannot fit the inner wall of the cavity, which easily leads to leakage of irrigation fluid, inadequate local irrigation, or forced insertion that compresses and scratches the nasal mucosa. By setting a heater 15 and a temperature sensor in the water tank 3, combined with the real-time monitoring and control of the liquid temperature by the PLC controller, the liquid temperature is stabilized at the human body's suitable range of 32-38℃. This solves the problem that the existing device's irrigation fluid temperature is easily too low or too high, which irritates the nasal mucosa and causes discomfort.

[0036] The specific steps are as follows: S1. Preparation before use: Start the battery pack 8 to power on and observe whether the display screen 13 on the surface of the outer casing 1 lights up normally. Test the operation status of the micro water pump 501 and micro air pump 701 by using the control button 14 on the handle 2. Then, unfasten the buckle between the water tank 3 and the handle 2, and inject medical irrigation solution that meets the treatment needs into the water tank 3, such as physiological saline or special nasal irrigation solution. Inject the amount of solution according to the needs, then put the water tank 3 back and fasten the buckle, ensuring that the heater 15 and the liquid inlet pipe 502 at the bottom of the handle 2 are fully inserted into the water tank 3. Set the solution temperature to 32-38℃ by using the control button 14. The PLC controller drives the heater 15 to work, and the temperature sensor transmits data to the display screen 13 in real time. The preheating is completed when the temperature reaches the set value.

[0037] S2. Inflation of the airbag: The micro air pump 701 is started by controlling the control button 14. Gas enters the airbag 6 through the air guide tube 702, sealing joint 703, and air inlet 602. The airbag 6 begins to inflate. The display screen 13 displays the pressure data of the airbag 6 in real time. At the same time, the inflation volume is adjusted according to the size of the patient's cavity. When not inflated, the airbag 6 is relatively flat, which makes it easier to insert into the cavity. During inflation, the protrusions 601 on the surface of the airbag 6 gradually contact the inner wall of the cavity. When a slight feeling of support is felt and there is no distending pain, inflation is stopped by controlling the control button 14.

[0038] S3. Flushing Operation: The micro water pump 501 is driven by the control button 14. The medicine in the water tank 3 enters the nozzle 4 through the inlet pipe 502, the micro water pump 501, the extension pipe 504, and the rubber sleeve 505. The medicine forms a stable water flow under the action of the spiral groove 405 on the inner wall of the nozzle 4, and finally sprays out from the conical head 401 to flush the ear, nose and throat cavities. The output power of the micro water pump 501 can be adjusted by the control button 14 to change the flushing pressure. For example, the pressure can be increased when cleaning stubborn secretions and decreased when cleaning sensitive mucous membranes. During the flushing process, after the flushing is completed, the micro water pump 501 is turned off. Then, the micro air pump 701 is controlled to work in reverse by the control button 14 to expel the gas in the air bag 6. After the air bag 6 returns to its flat state, the device is slowly removed.

[0039] S4. Post-use treatment: Unfasten the buckle of water tank 3, pour out the remaining medicine, rinse the inner wall of water tank 3 with clean water, wipe it dry, and then invert it to air dry; slide the sliding sleeve 9 and then loosen the positioning nut 1002. At this time, directly pull out the nozzle 4, rinse the conical head 401 spray hole, spiral groove 405 and the reduced diameter part 402 with clean water. If disinfection is required, the nozzle 4 can be soaked in 75% medical alcohol for 30 minutes, then rinsed with sterile saline and air dried; then reassemble the cleaned parts in their original positions.

[0040] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A user-friendly irrigation device for otolaryngology, comprising a housing (1), characterized in that: The outer casing (1) has an installation cavity (101) at the head and a battery pack (8) at the tail. A handle (2) is provided on the lower side, and a water tank (3) is detachably connected to the bottom of the handle (2). A sleeve bracket (10) is fixedly installed in the installation cavity (101). A first reinforcing tube (11) is threaded to the end of the sleeve bracket (10). An airbag (6) is fitted on the circumferential surface of the first reinforcing tube (11). Several protrusions (601) are provided on the outside of the airbag (6). The protrusions (601) are hemispherical and hollow inside. A second reinforcing tube (12) is threaded to the inside of the first reinforcing tube (11). A nozzle (4) is inserted from the outside to the inside of the second reinforcing tube (12). A conical head (401) is provided at the head of the nozzle (4), and a reduced diameter part (402) is provided at the tail. A sealing ring (402) is fixedly connected to the circumferential surface near the tail. 3) A first positioning hole (404) is opened in the middle section, and a spiral groove (405) is opened on its inner wall. A water pump mechanism (5) is provided between the outer shell (1), the handle (2) and the water tank (3) to output the medicine liquid into the nozzle (4). An inflation mechanism (7) for inflating the air bag (6) is provided between the outer shell (1) and the sleeve support (10). A control button (14) electrically connected to the PLC controller is provided on the surface of the handle (2). A display screen (13) is installed on the surface of the outer shell (1). A heater (15) and a temperature sensor are provided in the water tank (3). The water pump mechanism (5), the inflation mechanism (7), the battery pack (8), the display screen (13), the heater (15) and the temperature sensor are all electrically connected to the PLC controller to realize real-time monitoring and precise control of temperature, pressure and liquid level data.

2. The easy-to-use irrigation device for otolaryngology according to claim 1, characterized in that: The water pump mechanism (5) includes a miniature water pump (501), an inlet pipe (502), a weighted ball (503), an extension pipe (504), and a rubber sleeve (505). The miniature water pump (501) is fixedly connected to the handle (2). The inlet pipe (502) is fixedly connected to the water inlet end of the miniature water pump (501). Its end is located in the water tank (3) and fixedly connected to the weighted ball (503). The end of the extension pipe (504) is sealed and connected to the rubber sleeve (505). The tail of the nozzle (4) is inserted into the rubber sleeve (505) through the reduced diameter part (402). The inside of the rubber sleeve (505) is provided with a sealing groove (506) that matches the sealing ring (403).

3. The easy-to-use irrigation device for otolaryngology according to claim 2, characterized in that: The inflation mechanism (7) includes a micro air pump (701), an air guide tube (702) and a sealing joint (703). The micro air pump (701) is fixedly connected inside the outer shell (1). One end of the air guide tube (702) is fixedly connected to the air outlet of the micro air pump (701), and the other end of the air guide tube (702) is connected to the air inlet (602) of the airbag (6) through the sealing joint (703).

4. The easy-to-use irrigation device for otolaryngology according to claim 3, characterized in that: The inner surface of the water tank (3) is provided with a liquid level scale. The bottom of the handle (2) is fixedly installed with a heater (15) and a temperature sensor. The top of the water tank (3) is assembled to the bottom of the handle (2) by a snap fastener. After assembly, the liquid inlet pipe (502) and the heater (15) are both located inside the water tank (3).

5. The easy-to-use irrigation device for otolaryngology according to claim 4, characterized in that: The sleeve support (10) is fixedly connected to a hollow rod (1001) at one end near the outer shell (1). The hollow rod (1001) is fixedly connected to the inner wall of the mounting cavity (101) by bolts. The sleeve support (10) has a positioning nut (1002) threaded on its circumferential surface. The position of the positioning nut (1002) corresponds to the first positioning hole (404).

6. The easy-to-use irrigation device for otolaryngology according to claim 5, characterized in that: A sliding sleeve (9) is slidably connected inside the mounting cavity (101). The sleeve bracket (10) is located inside the sliding sleeve (9). A protective channel (901) is provided inside the sliding sleeve (9) to cooperate with the air guide tube (702). A limiting rod (902) is fixedly connected to the inner wall of the sliding sleeve (9). The end of the limiting rod (902) is slidably connected to the hollow rod (1001), and a small spring (903) is sleeved on the circumferential surface of the limiting rod (902).

7. The easy-to-use irrigation device for otolaryngology according to claim 6, characterized in that: The first reinforcing tube (11) has a second positioning hole (1101) near the air inlet (602) of the airbag (6) so that the sealing joint (703) can pass through the second positioning hole (1101) to connect the air guide tube (702) and the air inlet (602).

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