An ear canal treatment device

Abstract

The application belongs to the technical field of medical devices. In view of the problem that ear canal nursing devices are prone to cause waste and tissue organic damage during use, the application provides an ear canal nursing device, which comprises a sleeve, a gourd-shaped double-cavity protective sleeve, a pressure feedback mechanism and a nursing mechanism arranged on the sleeve. The gourd-shaped double-cavity protective sleeve and the pressure feedback mechanism can prevent the sleeve from excessively penetrating into the external auditory canal of a patient, and can visually and real-timely display the pressure of the gourd-shaped double-cavity protective sleeve contacting the wall of the external auditory canal of the patient, so as to avoid causing tissue organic damage. The nursing mechanism can uniformly apply the liquid medicine on the wall of the external auditory canal, so as to avoid waste and can take out the foreign matter of the softened external auditory canal wall from the external auditory canal.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology, specifically relating to an ear canal care device. Background Technology

[0002] The ear canal, as a core component of the human auditory system, has a delicate anatomical structure and unique physiological functions: the skin of the external auditory canal is thin and delicate, closely connected to the perichondrium, with scarce subcutaneous tissue and weak blood circulation; the tympanic membrane, as a key interface for auditory conduction, is extremely sensitive to external impacts and pressure stimuli. Ear canal care is a routine technical procedure in otolaryngology clinical diagnosis and treatment as well as public health care. Its core functions include earwax removal, ear canal irrigation, and local medication administration, and it is widely used as an adjunct treatment for diseases such as otitis media and external otitis, as well as for ear canal health maintenance in special populations such as the elderly and infants.

[0003] Patent CN217611694U discloses an ear canal cleaning device for ear, throat, and nose care, including a flow tube, a soft rubber head, and a protective plate. The soft rubber head is located at one end of the flow tube, and the other end of the flow tube has a push-in port. The protective plate is fitted onto the flow tube and connected to the flow tube with teeth. In use, earwax is easily removed by a silicone scraper. The expanding cotton absorbs the cleaning solution or medicine and expands to fill the entire ear canal cavity. It can rotate to clean while ensuring that the entire ear canal cavity is in full contact with the medicine. The protective plate covers the outer ear. When the lever is pressed, the flow tube can be pushed inward. When the designated position is reached, the lever is released to prevent the flow tube from pushing further inward and causing damage to the eardrum.

[0004] When using the above-mentioned technical solution, the expanded cotton needs to absorb a sufficient amount of cleaning solution or medication to allow the medication to act on the ear canal. Therefore, a large amount of cleaning solution or medication is required for each ear canal cleaning, resulting in waste. Furthermore, when using the above-mentioned technical solution, the operator needs to rely on subjective experience to judge the insertion depth of the flow tube and the magnitude of the force. For special pathological conditions such as ear canal stenosis and cerumen impaction, the squeezing pressure between the end of the device and the external auditory canal wall or cerumen mass will increase sharply, and the operator cannot perceive it in real time. This makes it impossible to avoid the risk of tissue damage caused by hard contact, which can easily lead to organic tissue damage. Summary of the Invention

[0005] The purpose of this invention is to overcome the problems of existing ear canal care devices being wasteful and causing organic damage to tissues during use.

[0006] To achieve the above objectives, the technical approach adopted by this invention is as follows: An ear canal care device is provided, comprising a sleeve, a gourd-shaped double-cavity protective sleeve, a pressure feedback mechanism, and a care mechanism disposed on the sleeve. This invention, through the gourd-shaped double-cavity protective sleeve and the pressure feedback mechanism, can prevent the sleeve from penetrating excessively into the patient's external auditory canal, and can visually display in real-time the pressure exerted by the gourd-shaped double-cavity protective sleeve on the patient's external auditory canal wall, thus avoiding organic tissue damage; the care mechanism can evenly apply medication to the external auditory canal wall, avoiding waste while simultaneously removing softened foreign objects from the external auditory canal wall.

[0007] Based on the above technical concept, the technical solution adopted by this invention is as follows: An ear canal care device, comprising: The sleeve has a vertically arranged annular connecting piece inside, which divides the interior of the sleeve into a nursing chamber and a protective chamber. A gourd-shaped double-cavity protective sleeve is located at the end of the sleeve and communicates with the protective cavity to prevent the sleeve from extending excessively into the patient's external auditory canal. The pressure feedback mechanism, with one end located inside the protective cavity and the other end located inside the nursing cavity, is used to visually display in real time the pressure of the gourd-shaped double-cavity protective sleeve in contact with the patient's external auditory canal wall; The nursing device, located inside the nursing cavity and slidably connected to the pressure feedback mechanism, is used to spray out the medication or cleaning solution inside the nursing cavity and evenly apply it to the wall of the external auditory canal for treatment and cleaning of the external auditory canal.

[0008] To facilitate operation and allow operators to monitor the pressure between the gourd-shaped double-cavity protective sleeve and the external auditory canal wall in real time, preventing excessive compression of the external auditory canal or cerumen clumps and avoiding organic tissue damage, the pressure feedback mechanism, as a preferred embodiment of the above technical solution, includes: A visual warning hole is provided on the side of the sleeve and is connected to the nursing cavity; The warning bar has one end located inside the protective cavity and the other end located inside the nursing cavity after passing through the annular connecting piece; The warning head is located inside the nursing cavity, with one end detachably connected to the other end of the warning rod, and the other end protruding through the visual warning hole and located on the outside of the sleeve; The elastic element is located inside the protective cavity and is sleeved with one end of the warning rod.

[0009] To facilitate the even application of the medication or cleaning solution to the wall of the external auditory canal and the removal of foreign objects from the wall, further limitations are made to the above-mentioned technical solution, including the following nursing facilities: Multiple liquid outlets are located on the side of the sleeve, and each liquid outlet is connected to the nursing chamber; The flexible brush cylinder is fitted with a sleeve and has a spiral slide on the side. The push rod has one end located outside the sleeve and the other end located inside the nursing cavity, and is slidably connected to the warning rod; The guide protrusion is detachably connected to the side of the push rod and slidably connected to the spiral slide.

[0010] To facilitate the spraying of the medicine or cleaning solution, the above technical solution is further specified by providing a spray nozzle on the flexible brush cylinder.

[0011] To prevent damage to the patient's external auditory canal wall, the above technical solution is further specified: the gourd-shaped double-cavity protective sleeve is made of elastic material.

[0012] To further improve the fixation effect of the gourd-shaped double-cavity protective sleeve in the patient's external auditory canal, the above technical solution is further refined by providing annular protrusions on the gourd-shaped double-cavity protective sleeve to enhance its fixation effect.

[0013] Beneficial effects:

[0014] 1. The gourd-shaped double-cavity protective sleeve provided by this invention actively generates mechanical resistance when the front end contacts an obstacle, preventing excessive insertion from a structural level, and does not rely on an electronic control system, thus improving reliability in extreme environments. Second, through the combined design of the gourd-shaped double-cavity protective sleeve and the pressure feedback mechanism, this invention can provide real-time feedback on the contact pressure between the gourd-shaped double-cavity protective sleeve and the external auditory canal wall, realize immediate early warning, and achieve scientific and quantitative control of pressure to avoid causing organic tissue damage. Third, through the combined design of the nursing mechanism and the sleeve, this invention can achieve the coordinated operation of cleaning, medication injection, scraping and suction functions, which improves nursing efficiency and reduces the risk of secondary damage to the external auditory canal by eliminating the need for frequent replacement of parts during operation. IV. Through the combined design of the warning rod and the elastic element, the present invention allows for the selection of a specific elastic modulus to be placed in the elastic element, thereby limiting the warning threshold of the warning rod and achieving scientific and quantitative control of the pressure of the gourd-shaped double-cavity protective sleeve. V. The present invention, through the combined design of push rod and guide protrusion, eliminates the need for operators to manually rotate the flexible brush cylinder. Simply pushing the push rod will drive the flexible brush cylinder to rotate, which improves the stability of the overall device during use and further enhances the overall nursing efficiency of the device. VI. The present invention uses a combination of a gourd-shaped double-cavity protective sleeve and an annular protrusion. After the gourd-shaped double-cavity protective sleeve expands, its outer diameter matches the corresponding anatomical diameter of the ear canal, forming a tight fit with the ear canal wall. Combined with the mechanical interlocking effect of the annular protrusion stripes on the outer end face, a double fixation effect is formed, which increases the resistance to the device's forward extension, physically restricts excessive insertion, and more effectively avoids damage to the ear canal tissue and tympanic membrane. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of an ear canal care device provided in an embodiment of the present invention; Figure 2 for Figure 1 A front view of the device shown; Figure 3 for Figure 2 A half-sectional view of the device shown; Figure 4 This is a schematic diagram of the flexible brush cylinder. Figure 5 for Figure 4 Enlarged view of point A in the middle; Figure 6 This is a schematic diagram of the sleeve structure; Figure 7 A schematic diagram of the gourd-shaped double-cavity protective sleeve; Figure 8 A schematic diagram illustrating the connection between nursing facilities and stress feedback mechanisms; Figure 9 for Figure 8 Disassembly diagram of the device shown; Figure 10 This is a schematic diagram showing the connection relationship between the push rod and the guide protrusion. Figure 11 for Figure 10 A half-sectional view of the device shown; Figure 12 for Figure 1 Top view of the device shown; Figure 13 for Figure 1 Right view of the device shown; Figure 14 for Figure 1 The device shown is in use. Figure 1 ; Figure 15 for Figure 1 The device shown is in use. Figure 2 .

[0017] Among them, 1. Sleeve; 11. Circular connecting piece; 12. Nursing cavity; 13. Protective cavity; 14. Sealing head; 15. Movable through hole; 2. Gourd-shaped double-cavity protective sleeve; 21. Rear end chamber; 22. Front end chamber; 23. Circular protrusion; 3. Pressure feedback mechanism; 31. Visual warning hole; 32. Warning rod; 33. Warning head; 34. Elastic element; 4. Nursing mechanism; 41. Liquid outlet; 42. Flexible brush; 42a. Spiral slide; 42b. Spray nozzle; 43. Push rod; 44. Guide protrusion. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0019] In the description of this invention, it should be understood that the terms "length direction," "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0020] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0021] The inventors' research revealed that current ear canal care devices require the following steps during use: 1. The cotton pad needs to absorb a sufficient amount of cleaning solution or medication to ensure the medication acts on the ear canal. Therefore, a large amount of cleaning solution or medication is needed for each ear canal cleaning, resulting in waste. 2. Operators need to rely on subjective experience to judge the depth of insertion of the tube and the amount of force applied. In special pathological conditions such as ear canal stenosis or cerumen impaction, the pressure between the end of the device and the external auditory canal wall or cerumen mass will increase sharply, which the operator cannot perceive in real time. This makes it impossible to avoid the risk of tissue damage caused by hard contact, which can easily lead to organic tissue damage.

[0022] Based on the above findings, this application proposes an ear canal care device comprising a sleeve 1, a gourd-shaped double-chamber protective sleeve 2, a pressure feedback mechanism 3, and a care mechanism 4. The application improves the overall effectiveness of the device through the following design: 1. The gourd-shaped double-cavity protective sleeve 2 actively generates mechanical resistance when the front end contacts an obstacle, preventing excessive insertion from a structural level, and does not rely on an electronic control system, thus improving reliability in extreme environments. 2. The pressure feedback mechanism 3 can provide real-time feedback on the contact pressure between the gourd-shaped double-cavity protective sleeve and the external auditory canal wall, enabling immediate early warning and scientific and quantitative control of pressure to avoid causing organic tissue damage. 3. The nursing unit 4 can achieve coordinated operation of cleaning, medication injection, scraping and suction functions, which improves nursing efficiency. Moreover, there is no need to frequently change parts during the operation, which reduces the risk of secondary damage to the external auditory canal and improves the overall nursing efficiency of the device.

[0023] Example 1 This embodiment provides an ear canal care device, such as Figures 1-15 As shown, it includes a sleeve 1, a gourd-shaped double-chamber protective sleeve 2, a pressure feedback mechanism 3, and a nursing mechanism 4.

[0024] The sleeve 1 is a cylindrical structure with a through hole in the center, and an annular connecting piece 11 is vertically arranged inside the through hole of the sleeve 1. The annular connecting piece 11 divides the through hole of the sleeve 1 into a nursing chamber 12 and a protective chamber 13. The nursing chamber 12 is used to install the pressure feedback mechanism 3 and the nursing mechanism 4, as well as to store cleaning fluid or medicine.

[0025] Among them, the sleeve 1 is made of a rigid material. For example, the sleeve 1 is made of medical-grade polypropylene.

[0026] In practical applications, a sealing head 14 is fixedly provided at the end of the nursing cavity 12 away from the protective cavity 13. The sealing head 14 is used to slide with the nursing mechanism 4 and can limit the nursing mechanism 4 to prevent it from shaking.

[0027] The gourd-shaped double-cavity protective sleeve 2 has a stepped double-cavity structure with a smaller front and a larger rear. An opening is provided at the rear end of the gourd-shaped double-cavity protective sleeve 2, which is fixedly connected to the sleeve 1, so that the interior of the gourd-shaped double-cavity protective sleeve 2 is connected to the protective cavity 13. Specifically, the gourd-shaped double-cavity protective sleeve 2 has a rear end chamber 21 and a front end chamber 22 that are interconnected. The rear end chamber 21 is located between the protective cavity 13 and the front end chamber 22, and the side wall thickness at the rear end chamber 21 is greater than the side wall thickness of the front end chamber 22. The volume of the rear end chamber 21 is greater than the volume of the front end chamber 22. In this way, the front end chamber 22 has better deformation response performance than the rear end chamber 21. Preferably, the side wall thickness of the front end chamber 22 is about 0.2 mm less than that of the rear end chamber 21.

[0028] It should be noted that the material of the gourd-shaped double-cavity protective sleeve 2 is not limited in the embodiments of the present invention; preferably, the material of the gourd-shaped double-cavity protective sleeve 2 is medical-grade liquid silicone that meets biocompatibility standards and has excellent elasticity and wear resistance, so as to effectively avoid ear canal mucosal allergies and chemical irritation. In practical applications, to further improve the fixing effect of the gourd-shaped double-cavity protective sleeve 2 and prevent its movement, multiple annular protrusions 23 are integrally formed on the outer surface of the rear end of the gourd-shaped double-cavity protective sleeve 2. It should be noted that the dimensions of the annular protrusions 23 are not limited in this embodiment of the invention. Preferably, the height of each annular protrusion 23 is between 0.3 mm and 0.5 mm, and the distance between the annular protrusions 23 is between 1.0 mm and 1.5 mm. This increases the axial friction coefficient between the rear end of the gourd-shaped double-cavity protective sleeve 2 and the external auditory canal wall to over 0.45, significantly increasing the contact resistance of the gourd-shaped double-cavity protective sleeve 2.

[0029] The working principle of the gourd-shaped double-cavity protective sleeve 2 provided in this embodiment of the invention is as follows: When the gourd-shaped double-cavity protective sleeve 2 is inserted into the external auditory canal, the front end of the gourd-shaped double-cavity protective sleeve 2 contacts the ear canal wall, cerumen mass or tympanic membrane. After being squeezed, the front end of the gourd-shaped double-cavity protective sleeve 2 immediately retracts and deforms, so that the gas in the front cavity 22 flows into the rear cavity 21. After the rear cavity 21 is filled with gas, it expands rapidly. After expansion, the outer diameter of the rear cavity 21 matches the corresponding anatomical diameter of the ear canal and forms a tight fit with the external auditory canal wall. Combined with the mechanical interlocking effect of the annular protrusion 23, a double fixation effect is formed, which instantly increases the forward extension resistance of the gourd-shaped double-cavity protective sleeve 2, physically restricting excessive insertion and effectively avoiding damage to the ear canal tissue and tympanic membrane.

[0030] The pressure feedback mechanism 3 includes a visual warning hole 31, a warning rod 32, a warning head 33, and an elastic element 34.

[0031] Specifically, the visual warning hole 31 is a strip-shaped through hole opened on the side wall of the sleeve 1 and is connected to the nursing cavity 12; The warning rod 32 is a straight rod, with one end located inside the protective cavity 13. A sealing plate is fixedly installed on the end inside the protective cavity 13 to prevent the warning rod 32 from coming out of the protective cavity 13 and to facilitate the movement of the warning rod 32 under the pressure changes inside the gourd-shaped double-cavity protective sleeve 2. The other end of the warning rod 32 is located inside the nursing cavity 12 and is detachably connected to the warning head 33. The warning rod 32 is made of a rigid material, for example, ABS engineering plastic. The warning head 33 has a cylindrical structure and is perpendicular to the warning rod 32. One end of the warning head 33 passes through the visual warning hole 31 on the sleeve 1 and the care mechanism 4 in sequence, and is detachably connected to the warning rod 32. The other end is located outside the visual warning hole 31. In this embodiment of the invention, the detachable connection method between the warning rod 32 and the warning head 33 is not limited; for example, the fixed connection method is a threaded connection or a snap-fit ​​connection. In practical applications, the color of the warning head 33 can be set to red or other conspicuous colors for easy identification by operators.

[0032] The elastic element 34 is located inside the protective cavity 13. One end of the elastic element 34 is fixedly connected to the side of the annular connecting piece 11 and sleeved with the warning rod 32. The other end is fixedly connected to the sealing piece of the warning rod 32. The specific mechanism of the elastic element 34 is not limited in the embodiments of the present invention. Preferably, the elastic element 34 is a spring.

[0033] In actual use, a marker segment (not shown in the figure) is fixedly provided on one side of the visual warning hole 31 on the side wall of the sleeve 1 to reflect the pressure magnitude. Different positions on this marker segment have different colors to distinguish the pressure applied to the external ear canal by the gourd-shaped double-cavity protective sleeve 2. That is, when the warning head 33 is located at the end furthest from the protective cavity 13, it indicates that the pressure applied to the external ear canal by the gourd-shaped double-cavity protective sleeve 2 is the greatest. It should be noted that the structure of the marker end is not limited in this embodiment of the invention. For example, the marker segment is an adhesive tape with a gradient color.

[0034] The working principle of the pressure feedback mechanism 3 provided in this embodiment of the invention is as follows: When the gourd-shaped double-cavity protective sleeve 2 is inserted into the external auditory canal and comes into contact with the ear canal wall, cerumen mass or tympanic membrane, it immediately retracts and deforms after being squeezed. The gas in the front chamber 22 flows rapidly into the rear chamber 21. The rear chamber 21 expands rapidly after being filled with gas, thereby increasing the air pressure between the sealing plate at the end of the warning rod 32 and the gourd-shaped double-cavity protective sleeve 2. Thus, when the air pressure between the sealing plate at the end of the warning rod 32 and the gourd-shaped double-cavity protective sleeve 2 is within a safe range, that is, when the squeezing force at the front end of the gourd-shaped double-cavity protective sleeve 2 is within a safe range, the elastic force of the elastic element 34 is greater than the squeezing force at the front end of the gourd-shaped double-cavity protective sleeve 2. At this time, the position of the warning rod 32 remains unchanged, and the warning head 33 is located at the end of the visible warning hole 31 closest to the protective cavity 13. When the air pressure between the sealing plate at the end of the warning rod 32 and the gourd-shaped double-cavity protective sleeve 2 exceeds the safe range, that is, when the squeezing force at the front end of the gourd-shaped double-cavity protective sleeve 2 exceeds the safe upper limit, such as Figure 14 As shown, at this time, the squeezing force at the front end of the gourd-shaped double-cavity protective sleeve 2 overcomes the elastic force of the elastic element 34, causing the elastic element 34 to compress, and the warning rod 32 moves to the side of the nursing cavity 12, so that the warning head 33 moves inside the visual warning hole 31, realizing visual and real-time warning, and can be combined with the marking segment to reflect the magnitude of the squeezing force at the front end of the gourd-shaped double-cavity protective sleeve 2. When medical staff move the gourd-shaped double-cavity protective sleeve 2 outward to reduce the squeezing force at the front end of the gourd-shaped double-cavity protective sleeve 2, the air pressure between the sealing plate at the end of the warning rod 32 and the gourd-shaped double-cavity protective sleeve 2 drops to a safe range. Then, the elastic element 34 returns to its natural state, thereby driving the warning rod 32 to retract. In turn, the warning rod 32 drives the warning head 33 to move towards the end of the visual warning hole 31 near the protective cavity 13, until the warning head 33 is located at the end of the visual warning hole 31 near the protective cavity 13. At this time, the squeezing force at the front end of the gourd-shaped double-cavity protective sleeve 2 is within a safe range, so that nursing care can continue.

[0035] Nursing device 4 includes multiple liquid outlets 41, a flexible brush 42, a push rod 43, and a guide protrusion 44; Specifically, each liquid outlet 41 is located on the side of the sleeve 1; The flexible brush cylinder 42 has a cylindrical structure and is rotatably connected to the sleeve 1. In this embodiment, the rotatable connection method between the flexible brush cylinder 42 and the sleeve 1 is not limited. For example, an annular protrusion is provided on the inner wall of the flexible brush cylinder 42, and correspondingly, a sliding groove matching and connected to the annular protrusion is provided on the side of the sleeve 1. Specifically, multiple flexible brushes arranged at equal intervals and multiple spray nozzles 42b arranged at equal intervals are fixedly provided on the outer surface of the flexible brush cylinder 2. Thus, the cleaning fluid or medication inside the nursing cavity 12 acts on the patient's external auditory canal wall after sequentially passing through the outlet 41 and the spray nozzles 42b. Preferably, the flexible brushes provided in this embodiment are medical nylon filaments with a diameter of 0.1 mm. The flexible brush cylinder 42 has a spiral slide 42a on its side, and the spiral slide 42a is connected to the nursing cavity 12 for sliding connection with the guide protrusion 44; correspondingly, the sleeve 1 has an movable through hole 15 to facilitate the sliding of the guide protrusion 44. Push rod 43 includes the push rod body and the sealing block; specifically, such as Figure 3 and Figure 9 As shown, one end of the push rod body is located outside the sleeve 1, and the other end is located inside the nursing cavity 12; the sealing block is fixedly installed at the end of the push rod body, and the guide protrusion 44 is vertically installed with the sealing block, and the guide protrusion 44 is detachably connected to the side of the sealing block. The end of the guide protrusion 44 away from the push rod 43 passes through the movable through hole 15 and is located inside the spiral slide 42a; wherein, the embodiment of the present invention does not limit the detachable connection method between the guide protrusion 44 and the sealing block. For example, the detachable connection method is a threaded connection or a snap-fit ​​connection.

[0036] The push rod body has an L-shaped channel inside, and the center of the corresponding blocking block has a through hole that communicates with the L-shaped channel so that the warning rod 32 can pass through. In this way, one end of the warning rod 32 passes through the through hole of the blocking block and the L-shaped channel of the push rod body in sequence, and is detachably connected to the warning head 33. The end of the warning head 33 away from the warning rod 32 passes through the L-shaped channel and is located in the visual warning hole 31.

[0037] In practical use, the pressure value generated inside the nursing chamber 12 when the push rod 43 moves can be set by adjusting the size of the nursing chamber 12 and the liquid outlet 41. Preferably, the pressure value generated inside the nursing chamber 12 when the push rod 43 moves is between 0.2MPa and 0.3MPa.

[0038] The working principle of the nursing facility 4 provided in this embodiment of the invention is as follows: Figure 15 As shown, the operator pushes the push rod 43 into the sleeve 1. At this time, the internal pressure of the nursing cavity 12 increases. Under the pressure applied by the sealing block of the push rod 43, the cleaning liquid or medicine liquid pre-filled in the nursing cavity 12 is sprayed out from the outlet 41 and the spray nozzle 42b of the flexible brush tube 42 in sequence. The cleaning liquid or medicine liquid is in full contact with the ear canal wall to achieve medication or soften foreign objects in the ear canal wall. As the push rod 43 moves into the sleeve 1, the guide protrusion 44 on the push rod 43 moves in the same direction inside the spiral slide 42a, thereby driving the flexible brush cylinder 42 to rotate. During the rotation, the foreign objects in the ear canal wall can be gently peeled off, so that the peeled foreign objects can be softened and adhered to the brush of the flexible brush cylinder 42, or the medicine can form a uniform coating layer to improve the utilization of the medicine. After the medication is applied, when the operator pulls the push rod 4 to the outside of the sleeve 1, a negative pressure environment is formed inside the nursing cavity 12. Under the action of negative pressure, the foreign objects and secretions that have been peeled off from the outside of the sleeve 1 adhere even more to the brush of the flexible brush tube 42, thus improving the cleaning effect on the external auditory canal.

[0039] The method of using the ear canal care device provided in this embodiment of the invention includes the following steps: S1: Based on the position of the warning head 33 in the visual warning hole 31, insert the end of the sleeve 1 with the gourd-shaped double-cavity protective sleeve 2 into the patient's external auditory canal until the gourd-shaped double-cavity protective sleeve 2 contacts the wall of the external auditory canal and is automatically fixed. S101: The operator holds the sleeve 1 with one hand and inserts the end of the sleeve 1 with the gourd-shaped double-cavity protective sleeve 2 into the patient's external auditory canal until the front end of the gourd-shaped double-cavity protective sleeve 2 contacts the ear canal wall, cerumen mass or tympanic membrane. At this time, the front end of the gourd-shaped double-chamber protective sleeve 2 is squeezed and immediately retracts and deforms, causing the gas in the front chamber 22 to flow into the rear chamber 21. The rear chamber 21 expands rapidly after being filled with gas. After expansion, the outer diameter of the rear chamber 21 matches the corresponding anatomical diameter of the ear canal and forms a tight fit and fixation with the wall of the external auditory canal. S102: The operator moves the sleeve 1 in the patient's external auditory canal to keep the warning head 33 always in the end of the visual warning hole 31 that is closest to the protective cavity 13; S2: Utilize nursing facility 4 to apply medication or clean the patient's external auditory canal. Specifically, this includes the following steps: S201: The operator holds the sleeve 1 with one hand and pushes the push rod 43 into the sleeve with the other hand. Driven by the guide protrusion 44, the flexible brush cylinder 42 rotates, and the medicine or cleaning solution inside the nursing cavity 12 is sprayed out from the outlet 41 and the spray nozzle 42b in sequence and acts on the external auditory canal wall; at the same time, during the rotation of the flexible brush cylinder 42, the medicine or cleaning solution is evenly applied to the external auditory canal wall. During this process, the cleaning solution softens and peels off foreign objects from the external auditory canal wall, causing the softened and peeled foreign objects to adhere to the bristles of the flexible brush tube 42, thereby cleaning the external auditory canal wall, or the medication is applied to the patient's external auditory canal to administer medication. S3: The operator removes the entire device from the patient's external auditory canal, completing the care of the patient's external auditory canal.

[0040] Following step S201, to further improve the cleaning effect on the external auditory canal wall, the following steps are also included after step S201 and before step S3: S202: The operator holds the sleeve 1 with one hand and pulls the push rod 43 outward from the sleeve 1 with the other hand. A negative pressure environment is formed inside the nursing cavity 12, which causes the foreign objects detached from the external auditory canal to adhere further to the brush of the flexible brush tube 42 under the action of negative pressure attraction, thereby improving the cleaning effect on the external auditory canal wall.

[0041] Application Cases Taking the cleaning of a patient's external auditory canal as an example, the method of using the ear canal care device provided by the present invention includes the following steps: S1: Assembly of the ear canal care device, specifically including the following steps: S101: Hold and pass the warning rod 32 through the center of the protective cavity 134 and the center of the annular connecting piece 11 in sequence, so that one end of the warning rod 32 is located in the nursing cavity 12; S102: The gourd-shaped double-cavity protective sleeve 2 is fixedly installed at the end of the sleeve 1, so that the interior of the gourd-shaped double-cavity protective sleeve 2 is connected to the protective cavity 13. S103: Place the sleeve 1 vertically and use a syringe to inject the cleaning solution into the nursing cavity 12 through the movable through hole 15; S104: Install sealing head 14; S105: Insert the end of the push rod 43 with the sealing block into the nursing cavity 12 and slide it to the warning rod 32; S106: After the guide protrusion 44 passes through the spiral slide 42a and the movable through hole 15 opened on the sleeve 1 in sequence, it is fixedly connected to the side of the push rod 43. S107: After passing the warning head 33 through the L-shaped channel of the visual warning hole 31 and the push rod 43 in sequence, it is fixedly connected to the side of the warning rod 32; at this time, the ear canal care device is assembled. S2: The operator holds the sleeve 1 with one hand and inserts the end of the sleeve 1 with the gourd-shaped double-cavity protective sleeve 2 into the patient's external auditory canal until the front end of the gourd-shaped double-cavity protective sleeve 2 contacts the ear canal wall, cerumen mass or tympanic membrane and then fixes it. S3: The operator moves the sleeve 1 in the patient's external auditory canal so that the warning head 33 is located at the end of the visual warning hole 31 closest to the protective cavity 13; S4: The operator holds the sleeve 1 with one hand and pushes the push rod 43 into the sleeve with the other hand. Driven by the guide protrusion 44, the flexible brush cylinder 42 rotates, and the cleaning fluid inside the nursing cavity 12 is sprayed out from the outlet 41 and the spray nozzle 42b in sequence and acts on the external auditory canal wall. At the same time, during the rotation of the flexible brush cylinder 42, the cleaning fluid is evenly applied to the external auditory canal wall so as to soften and peel off the foreign objects on the external auditory canal wall. Due to the rotation of the brush on the flexible brush cylinder 42, the softened and peeled foreign objects adhere to the brush on the flexible brush cylinder 42. S5: The operator holds the sleeve 1 with one hand and pulls the push rod 43 to the outside of the sleeve 1 with the other hand. A negative pressure environment is formed inside the nursing cavity 12, which causes the foreign objects detached from the external auditory canal to adhere further to the brush of the flexible brush sleeve 42 under the action of negative pressure attraction, thereby improving the cleaning effect on the external auditory canal wall. S6: The operator removes the entire device from the patient's external auditory canal, completing the cleaning operation of the patient's external auditory canal.

[0042] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

Claims

1. An ear canal care device, characterized in that, include: The sleeve (1) has a vertically arranged annular connecting piece (11) inside, which divides the inside of the sleeve (1) into a nursing cavity (12) and a protective cavity (13). A gourd-shaped double-cavity protective sleeve (2) is set at the end of the sleeve (1) and communicates with the protective cavity (13) to prevent the sleeve (1) from being excessively inserted into the patient's external auditory canal; The pressure feedback mechanism (3) has one end located in the protective cavity (13) and the other end located in the nursing cavity (12), and is used to visually display in real time the pressure of the gourd-shaped double-cavity protective sleeve (2) in contact with the patient's external auditory canal wall; The nursing device (4) is located inside the nursing cavity (12) and is slidably connected to the pressure feedback mechanism (3). It is used to spray out the medicine or cleaning solution inside the nursing cavity (12) and evenly apply it to the wall of the external auditory canal, and to perform external auditory canal treatment and cleaning.

2. The ear canal care device according to claim 1, characterized in that, The pressure feedback mechanism (3) includes: A visual warning hole (31) is provided on the side of the sleeve (1) and is connected to the nursing cavity (12); The warning bar (32) has one end located inside the protective cavity (13) and the other end passes through the annular connecting piece (11) and is located inside the nursing cavity (12); The warning head (33) is located inside the nursing cavity (12), and one end is detachably connected to the other end of the warning rod (32). The other end passes through the visual warning hole (31) and is located outside the sleeve (1). The elastic element (34) is located inside the protective cavity (13) and is sleeved with one end of the warning rod (32).

3. The ear canal care device according to claim 2, characterized in that, Nursing facilities (4) include: Multiple liquid outlets (41) are provided on the side of the sleeve (1), and each liquid outlet (41) is connected to the nursing cavity (12); The flexible brush tube (42) is sleeved with the sleeve (1) and has a spiral slide (42a) on the side. The push rod (43) has one end located outside the sleeve (1) and the other end located inside the nursing cavity (12), and is slidably connected to the warning rod (32); The guide protrusion (44) is detachably connected to the side of the push rod (43) and slidably connected to the spiral slide (42a).

4. An ear canal care device according to claim 3, characterized in that, A spray nozzle (42b) is provided on the flexible brush cylinder (42).

5. An ear canal care device according to claim 1, characterized in that, The gourd-shaped double-cavity protective sleeve (2) is made of elastic material.

6. The ear canal care device according to claim 1, characterized in that, The gourd-shaped double-cavity protective sleeve (2) is also provided with annular protrusions (23) to improve the fixing effect of the gourd-shaped double-cavity protective sleeve (2).

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