Ear canal medicine spraying device for treating ear diseases

By designing an ear canal spraying device including a drug storage device, a rotating device, a drive device, a mist spray device and a sealing mechanism, the problems of drug spillover and insufficient coverage of target areas in the prior art are solved, and precise treatment and efficient coverage of the inflamed areas in the ear canal are achieved.

CN119838125AInactive Publication Date: 2025-04-18THE FIRST AFFILIATED HOSPITAL OF WENZHOU MEDICAL UNIV
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Patent Information

Application Number
CN202510320512.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-18
Publication Date
2025-04-18
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The existing ear canal drug delivery technology has problems of drug spillover and insufficient target area coverage, especially in the treatment of irregular lesions in the ear canal.

Method used

An ear canal spraying device including a drug storage device, a rotating device, a drive device, a mist spraying device and a sealing mechanism is designed. Through the cooperation of the magnetic suction plate and the sealing baffle, precise sealing of the inflamed area in the ear canal is achieved; the driving motor and cam drive the airflow to pressurize, and uniform spraying of the medicine liquid is achieved; the electronically controlled nozzle and micro camera are used to observe and locate the spray area.

Benefits of technology

It effectively avoids drug spillage, ensures that the drug is only sprayed in the inflamed area, improves the coverage of the target area, and achieves precise treatment of irregular lesions in the ear canal.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of auditory meatus drug delivery, in particular to an auditory meatus drug spraying device for treating ear diseases. Comprising a medicine storage device, a rotating device arranged above the medicine storage device, a driving device used for driving the rotating device to rotate, a mist spraying device arranged in the rotating device and a sealing mechanism used for sealing the auditory meatus of a patient. According to the auditory meatus medicine spraying device for treating the ear diseases, the position of a magnetic suction plate is changed by pulling a lifting ring, a protruding rod can drive a sealing baffle to move into the auditory meatus of a patient, it is ensured that medicine is sprayed only in the inflamed area of the auditory meatus of the patient in cooperation with a sealing mechanism, and the situation that medicine overflows, and consequently the external auditory meatus is polluted secondarily is avoided.
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Description

Technical Field

[0001] The invention relates to the technical field of ear canal drug administration, in particular to an ear canal drug spraying device for treating ear diseases. Background Art

[0002] Ear spray is a method of administering medicine commonly used to treat ear diseases. This medicine is usually in the form of a spray, which is convenient for direct action inside the ear canal. It can quickly and effectively relieve symptoms such as ear pain, ear itching, and ear pus.

[0003] The patent with application number CN202120818248.4 discloses an otolaryngology ear canal sprayer, including a cylindrical sleeve with a syringe inside; the inner wall of the sleeve is provided with a longitudinal groove and multiple transverse grooves, the longitudinal groove extends along the central axis of the sleeve, and the transverse grooves intersect with the longitudinal grooves and are perpendicular to each other; the front end of the longitudinal groove has a blind hole, and the rear end of the longitudinal groove passes through the rear end surface of the sleeve, which can conveniently adjust the spraying depth, improve the accuracy of spraying in the ear canal, and is easy to use.

[0004] Existing ear canal drug delivery technology has significant clinical limitations. When a single injection dose exceeds the adsorption threshold of the ear canal mucosa, the curvature of the ear canal and the epidermal barrier will cause drug overflow, which may lead to secondary contamination of the external auditory canal. In addition, the lesions such as tympanic membrane perforation and fungal plaques that need to be treated in the ear canal are mostly distributed in irregular sheets. Traditional instillation or cotton pad packing methods are prone to diffuse drug delivery due to surface tension, resulting in insufficient drug coverage in the target area. In addition, it is difficult to accurately locate the drug application area by relying solely on manual drug application, and during the drug application process, it is difficult to maintain consistent drug dosage at different locations.

[0005] In view of this, we propose an ear canal spray device for treating ear diseases. Summary of the invention

[0006] The object of the present invention is to provide an ear canal spray device for treating ear diseases, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions: An ear canal medicine spraying device for treating ear diseases, comprising a medicine storage device, a rotating device arranged above the medicine storage device, a driving device for driving the rotating device to rotate, a mist spraying device arranged inside the rotating device, and a sealing mechanism for sealing the patient's ear canal; The medicine storage device comprises a medicine storage tank and a partition for placing the medicine liquid; The rotating device comprises a rotating rod, a lifting portion arranged inside the rotating rod, and a pair of sealing baffles that can move inside the rotating rod; The lifting part includes a magnetic plate, a slide plate moving with the magnetic plate, and a protruding rod arranged on the outer wall of the slide plate. When the protruding rod moves upward with the magnetic plate, it drives the sealing baffle plate to move outward, and cooperates with the sealing mechanism to seal the medicine application area in the patient's ear canal to prevent the medicine from flowing out; The driving device includes a driving motor, a driving shaft rotating with the output shaft of the driving motor, a cam sleeved on the outside of the driving shaft, a piston plate moving under the partition as the cam rotates, and a spring for pushing the piston plate to move toward the cam. When the piston plate moves, the airflow is sent to the top of the partition to pressurize the storage space of the liquid medicine. The mist spray device includes a docking shaft and a moving block sleeved on the outside of the docking shaft. A bidirectional threaded groove is provided on the outer wall of the docking shaft. When the docking shaft rotates, the moving block reciprocates up and down on its outer side, allowing the nozzle on the moving block to evenly spray the medicine into the patient's ear canal.

[0008] In the technical solution of the present invention, the medicine storage device also includes a limiting ring integrally formed on the top surface of the medicine storage tank, an upper insert tube clamped and fixed on the top surface of the medicine storage tank, a liquid passage tube clamped on the inner top surface of the medicine storage tank, and an air outlet valve threadedly connected to the top surface of the partition, and the bottom end of the liquid passage tube extends to a position near the bottom of the medicine storage tank.

[0009] In the technical solution of the present invention, the rotating rod is rotatably connected to the outside of the limiting ring, and a rod wall groove is provided near the top position of the outer wall of the rotating rod for providing a moving range for the internal structure of the mist spray device, and a connecting hole connected to the bottom surface of the rotating rod is provided on the bottom groove wall of the rod wall groove, and a pulling groove is provided near the bottom position inside the rotating rod for providing a moving range for the internal structure of the rotating device.

[0010] In the technical solution of the present invention, two parallel rod wall ring grooves are opened on the outer side wall of the rotating rod, and a placement groove is opened on the outer side of the rod wall groove to provide a moving range for the sealing baffle, and a sliding groove is opened inside the placement groove to provide a moving range for the internal structure of the rotating device.

[0011] In the technical solution of the present invention, the magnetic plate is slidably connected to the inside of the lifting groove, the slide plate is slidably connected to the inside of the slide groove, the convex rod is integrally formed with the slide plate and the end portion extends to the inside of the placement groove, a pair of connecting rods are clamped between the magnetic plate and the slide plate, a connecting rope is adhered to the top surface of the magnetic plate, the other end of the connecting rope extends to the outside of the rotating rod and a lifting ring is adhered at the end portion, and medical staff can pull the lifting ring from the outside to pull the magnetic plate to move inside the lifting groove through the connecting rope.

[0012] In the technical solution of the present invention, the sealing baffle is slidably connected to the inside of the placement groove, and a guide groove is provided on the outer wall of the sealing baffle to provide a moving range for the convex rod. When the convex rod moves with the slide plate, the contact position between the end portion and the guide groove wall changes, allowing the sealing baffle to move inside the placement groove and allowing the rubber at the end portion to contact the inner wall of the patient's ear canal.

[0013] In the technical solution of the present invention, the driving motor is fixedly connected to the bottom surface of the medicine storage tank by screws, the driving shaft is coaxially connected to the output shaft of the driving motor, the top end of the driving shaft is rotatably connected to the top surface of the medicine storage tank, the end of the driving shaft is integrally formed with an external convex strip, and the cam is clamped and fixed to the outer side wall of the driving shaft.

[0014] In the technical solution of the present invention, the piston plate is slidably connected in the space below the medicine storage tank and the partition, and a docking pulley that contacts the outer wall of the cam is clamped on the outer wall of the piston plate through a round rod. One end of the spring is adhered to the outer wall of the piston plate and the other end is adhered to the inner wall of the medicine storage tank. A telescopic rod is inserted into the spring, and both ends of the telescopic rod are respectively clamped on the side walls of the piston plate and the medicine storage tank.

[0015] In the technical solution of the present invention, the docking shaft is rotatably connected to the inside of the rotating rod, and a docking groove adapted to the top of the driving shaft is opened at the bottom end of the docking shaft. The moving block is slidably connected to the inside of the groove of the rod wall. A number of regularly distributed electrically controlled nozzles and a miniature camera and a searchlight for observing the patient's ear canal are provided on the outer wall of the moving block. The bottom end of the moving block is clamped with a lower insert tube slidably connected to the inside of the connecting hole.

[0016] In the technical solution of the present invention, the sealing mechanism includes an annular airbag adhered to the slot wall in the rod wall annular groove, a ventilation pipe connected between the two annular airbags, and a docking cover clamped at the bottom ends of the two ventilation pipes.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. The ear canal spraying device for treating ear diseases can change the position of the magnetic plate by pulling the lifting ring, so that the convex rod can drive the sealing baffle to move into the patient's ear canal, and cooperate with the sealing mechanism to ensure that the medicine is sprayed only on the inflamed area of ​​the patient's ear canal, and avoid drug overflow and secondary contamination of the external auditory canal.

[0018] 2. The ear canal spray device for treating ear diseases, after the driving motor is started, the cam will drive the docking shaft to rotate, so that the moving block can move up and down in the groove of the rod wall at a uniform speed, and the medicine is evenly sprayed into the inflamed area of ​​the patient's ear canal through the electronically controlled nozzle to ensure the coverage of the medicine.

[0019] 3. In the ear canal spray device for treating ear diseases, when the driving shaft rotates, the cam will also rotate accordingly, allowing the air flow to enter the space where the medicine is stored from the air outlet valve, thereby automatically pressurizing the space, thereby simplifying the spraying process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 It is a schematic cross-sectional view of the overall structure of the present invention.

[0022] Figure 3 It is a schematic cross-sectional view of the structure of the medicine storage device of the present invention.

[0023] Figure 4 It is one of the schematic cross-sectional views of the structure of the rotating device in the present invention.

[0024] Figure 5 This is the second schematic diagram of the structural section of the rotating device in the present invention.

[0025] Figure 6 For the present invention Figure 5 Enlarged schematic diagram of part A.

[0026] Figure 7 It is a schematic structural diagram of the pulling part in the present invention.

[0027] Figure 8 It is a structural schematic diagram of the sealing baffle in the present invention.

[0028] Fig. 9 It is a schematic diagram of the structure of the driving device in the present invention.

[0029] Fig.10 It is a structural schematic diagram of the mist spray device in the present invention.

[0030] Fig.11 It is a structural schematic diagram of the sealing mechanism in the present invention.

[0031] Description of reference numerals: 100, medicine storage device; 110, medicine storage tank; 120, partition; 130, limit ring; 140, upper intubation tube; 150, liquid passage tube; 160, air outlet valve; 200, rotating device; 210, rotating rod; 211, rod wall slot; 212, connecting hole; 213, lifting groove; 214, rod wall ring groove; 215, placement groove; 216, slide groove; 220, lifting part; 221, magnetic plate; 222, slide plate; 223, protruding rod; 224, connecting rod; 225, lifting ring; 226, connecting rope; 230, sealing baffle; 231, guide groove; 300, driving device; 310, driving motor; 320, driving shaft; 330, cam; 340, piston plate; 350, docking pulley; 360, telescopic rod; 370, spring; 400, mist spray device; 410, docking shaft; 411, bidirectional thread groove; 412, docking groove; 420, moving block; 430, lower insert pipe; 500, sealing mechanism; 510, annular airbag; 520, ventilation pipe; 530, docking cover. DETAILED DESCRIPTION

[0032] The following will be combined with the accompanying drawings in the present invention to clearly and completely describe the technical solutions in the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] See also Figure 1-Figure 11 As shown, this embodiment provides a technical solution: An ear canal spray device for treating ear diseases includes a medicine storage device 100, a rotating device 200 disposed above the medicine storage device 100, a driving device 300 for driving the rotating device 200 to rotate, a mist spray device 400 disposed inside the rotating device 200, and a sealing mechanism 500 for sealing the patient's ear canal.

[0034] In this embodiment, Figure 3 As shown, the drug storage device 100 includes a drug storage tank 110 and a partition 120 for placing drug solution.

[0035] Specifically, the medicine storage device 100 also includes a limiting ring 130 integrally formed on the top surface of the medicine storage tank 110, an upper insert tube 140 clamped and fixed on the top surface of the medicine storage tank 110, a liquid passage tube 150 clamped on the inner top surface of the medicine storage tank 110, and an air outlet valve 160 threadedly connected to the top surface of the partition 120, and the bottom end of the liquid passage tube 150 extends to a position near the bottom of the medicine storage tank 110.

[0036] Furthermore, the medicine storage tank 110 is used to ensure the strength of the overall structure of the medicine storage device 100 and to provide a placement area for the rotating device 200 and the driving device 300. The partition 120 is used to separate a space for storing the medicine liquid inside the medicine storage tank 110. The limit ring 130 is used to limit the rotation range of the rotating device 200. The upper insert 140 cooperates with the liquid passing tube 150 to allow the medicine liquid to be discharged into the interior of the medicine storage tank 110.

[0037] In this embodiment, Figure 4-Figure 6As shown, the rotating device 200 includes a rotating rod 210 , a lifting portion 220 disposed inside the rotating rod 210 , and a pair of sealing baffles 230 that can move inside the rotating rod 210 .

[0038] Specifically, the rotating rod 210 is rotatably connected to the outside of the limiting ring 130, and a rod wall groove 211 is provided near the top position of the outer wall of the rotating rod 210 for providing a moving range for the internal structure of the mist spray device 400, and a connecting hole 212 connected to the bottom surface of the rotating rod 210 is provided on the bottom groove wall of the rod wall groove 211, and a pulling groove 213 is provided near the bottom of the rotating rod 210 for providing a moving range for the internal structure of the rotating device 200.

[0039] Furthermore, two parallel rod wall annular grooves 214 are opened on the outer wall of the rotating rod 210, and a placement groove 215 is opened on the outer side of the rod wall groove 211 of the rotating rod 210 to provide a moving range for the sealing baffle 230, and a sliding groove 216 is opened inside the placement groove 215 to provide a moving range for the internal structure of the rotating device 200.

[0040] Furthermore, the rotating rod 210 is used to provide a placement area for the lifting portion 220 and the sealing baffle 230, the connecting hole 212 is used to provide a placement space for the upper insert pipe 140, and the bottom of the groove wall of the lifting groove 213 adopts an iron structure.

[0041] In this embodiment, Figure 7-Figure 8 As shown, the lifting portion 220 includes a magnetic plate 221, a slide plate 222 that moves with the magnetic plate 221, and a protruding rod 223 arranged on the outer wall of the slide plate 222. When the protruding rod 223 moves upward with the magnetic plate 221, it drives the sealing baffle 230 to move outward, and cooperates with the sealing mechanism 500 to close the medicine application area in the patient's ear canal to prevent the outflow of the medicine.

[0042] Specifically, the magnetic plate 221 is slidably connected to the inside of the pulling groove 213, the slide plate 222 is slidably connected to the inside of the slide groove 216, the protruding rod 223 and the slide plate 222 are integrally formed and the end portion extends to the inside of the placement groove 215, and a pair of connecting rods 224 are clamped between the magnetic plate 221 and the slide plate 222. A connecting rope 226 is adhered to the top surface of the magnetic plate 221, and the other end of the connecting rope 226 extends to the outside of the rotating rod 210 and a pulling ring 225 is adhered at the end portion. Medical staff pull the pulling ring 225 from the outside to pull the magnetic plate 221 to move inside the pulling groove 213 through the connecting rope 226.

[0043] Furthermore, the sealing baffle 230 is slidably connected to the inside of the placement groove 215, and a guide groove 231 is opened on the outer wall of the sealing baffle 230 to provide a moving range for the protruding rod 223. When the protruding rod 223 moves with the slide plate 222, the contact position between the end of the protruding rod 223 and the wall of the guide groove 231 changes, allowing the sealing baffle 230 to move inside the placement groove 215 and allowing the rubber at the end to contact the inner wall of the patient's ear canal.

[0044] Furthermore, the medical staff pulls the lifting ring 225 from the outside, drives the magnetic plate 221 to move upward inside the lifting groove 213 through the connecting rope 226, and drives the slide plate 222 together with the protruding rod 223 to move upward inside the slide groove 216 through the connecting rod 224, thereby changing the contact position between the protruding rod 223 and the groove wall of the guide groove 231, thereby driving the sealing baffle 230 to extend outward, and allowing the rubber at the end of the sealing baffle 230 to conflict with the patient's ear canal.

[0045] In this embodiment, Fig. 9 As shown, the driving device 300 includes a driving motor 310, a driving shaft 320 that rotates along with the output shaft of the driving motor 310, a cam 330 that is sleeved on the outside of the driving shaft 320, a piston plate 340 that moves under the partition 120 along with the rotation of the cam 330, and a spring 370 for pushing the piston plate 340 to move toward the cam 330. When the piston plate 340 moves, airflow is sent to the top of the partition 120 to pressurize the storage space of the medicine solution.

[0046] Specifically, the driving motor 310 is fixedly connected to the bottom surface of the medicine storage tank 110 by screws, the driving shaft 320 is coaxially connected to the output shaft of the driving motor 310, the top end of the driving shaft 320 is rotatably connected to the top surface of the medicine storage tank 110, the end of the driving shaft 320 is integrally formed with an external convex strip, and the cam 330 is clamped and fixed to the outer wall of the driving shaft 320.

[0047] Furthermore, the piston plate 340 is slidably connected in the space below the medicine storage tank 110 and the partition 120. A docking pulley 350 that contacts the outer wall of the cam 330 is clamped on the outer wall of the piston plate 340 through a round rod. One end of the spring 370 is adhered to the outer wall of the piston plate 340 and the other end is adhered to the inner wall of the medicine storage tank 110. A telescopic rod 360 is inserted into the spring 370, and both ends of the telescopic rod 360 are respectively clamped on the side walls of the piston plate 340 and the medicine storage tank 110.

[0048] Furthermore, the drive motor 310 is started, and the drive shaft 320 is driven to rotate through the output shaft. The cam 330 that rotates together with the drive shaft 320 continuously changes the position of the contact with the docking pulley 350, and cooperates with the spring 370 that continuously pushes the piston plate 340 toward the cam 330, so that the piston plate 340 moves back and forth in the space below the partition 120, so that the air flow enters the space below the partition 120 through the air inlet valve of the medicine storage tank 110, and then passes into the area where the medicine is stored through the air outlet valve 160, and the telescopic rod 360 is used to limit the telescopic range of the spring 370.

[0049] In this embodiment, Fig.10 As shown, the mist spray device 400 includes a docking shaft 410 and a moving block 420 sleeved on the outside of the docking shaft 410. A bidirectional thread groove 411 is provided on the outer wall of the docking shaft 410. When the docking shaft 410 rotates, the moving block 420 reciprocates up and down on its outer side, so that the nozzle on the moving block 420 can evenly spray the medicine into the patient's ear canal.

[0050] Specifically, the docking shaft 410 is rotatably connected to the inside of the rotating rod 210, and the bottom end of the docking shaft 410 is provided with a docking groove 412 adapted to the top of the driving shaft 320. The moving block 420 is slidably connected to the inside of the rod wall groove 211. The outer wall of the moving block 420 is provided with a plurality of regularly distributed electrically controlled nozzles and a miniature camera and a searchlight for observing the patient's ear canal. The bottom end of the moving block 420 is clamped with a lower insert tube 430 slidably connected to the inside of the connecting hole 212.

[0051] Furthermore, after starting the driving motor 310, the driving shaft 320 is driven to rotate through the output shaft, and while the docking shaft 410 rotates with it, the moving block 420 can move back and forth up and down at a uniform speed on the inner side of the rod wall groove 211, and the lower insert tube 430 is used to be inserted into the interior of the connecting hole 212, so that the medicine can flow into the interior of the moving block 420.

[0052] In this embodiment, Fig.11 As shown, the sealing mechanism 500 includes an annular airbag 510 adhered to the inner slot wall of the rod wall annular groove 214, a ventilation pipe 520 connected between the two annular airbags 510, and a docking cover 530 clamped at the bottom ends of the two ventilation pipes 520.

[0053] Furthermore, after the two ventilation tubes 520 are inflated by the docking cover 530, the annular airbag 510 expands and seals the two ends of the ear canal.

[0054] Finally, it should be noted that the electric-controlled nozzle, miniature camera and searchlight on the driving motor 310 and the moving block 420 involved in the present invention are all universal standard parts or parts known to technical personnel in this field, and their structures and principles are all known to technical personnel in this field through technical manuals or through conventional experimental methods. In the idle space of this device, the electric-controlled nozzle, miniature camera and searchlight on the driving motor 310 and the moving block 420 are connected to the external power supply through wires. The specific connection means should refer to the working principle of the present invention, and the electrical connection between the electrical components is completed in a sequential working order, and the detailed connection means are all well-known technologies in the field.

[0055] When the ear canal spraying device for treating ear diseases of the present invention is used, first, the medical staff opens the sealing plug on the medicine storage tank 110, pours the medicine liquid into the medicine storage tank 110, and after the medicine liquid is filled, re-inserts the sealing plug; Next, the end of the rotating rod 210 is inserted into the patient's ear canal, and the rotating rod 210 is twisted to adjust the position of the rod wall slot 211, and the situation in the patient's ear canal is observed through the micro camera and searchlight on the moving block 420 in the mist spray device 400; Afterwards, when the medical staff observes the area in the ear canal that needs to be medicated, the docking mask 530 inflates the two ventilation tubes 520 to expand the annular airbag 510, thereby sealing the two ends of the ear canal. Afterwards, the medical staff pulls the lifting ring 225 from the outside, and drives the magnetic plate 221 to move upward inside the lifting groove 213 through the connecting rope 226, and drives the slide plate 222 and the protruding rod 223 to move upward inside the sliding groove 216 through the connecting rod 224, thereby changing the contact position between the protruding rod 223 and the groove wall of the guide groove 231, thereby driving the sealing baffle 230 to extend outward, and the rubber at the end of the sealing baffle 230 is in conflict with the patient's ear canal, thereby forming a small closed area at the inflamed area of ​​the patient; Next, the driving motor 310 is started to drive the driving shaft 320 to rotate through the output shaft, and the connecting shaft 410 rotates with it, and the moving block 420 can move up and down at a uniform speed inside the rod wall slot 211; At the same time, the position of the cam 330 that rotates with the driving shaft 320 and contacts the docking pulley 350 is constantly changing, and the piston plate 340 is constantly pushed toward the spring 370 of the cam 330, so that the piston plate 340 moves back and forth in the space below the partition 120, so that the air flow enters the space below the partition 120 from the air inlet valve of the medicine storage tank 110, and then passes into the area where the medicine is stored from the air outlet valve 160. After the pressurization is completed, the medicine is sprayed into the patient's ear canal by the electrically controlled nozzle on the moving block 420; Finally, after the liquid medicine adheres to the inner wall of the patient's ear canal, release the lifting ring 225, and allow the magnetic plate 221 to be adsorbed to the bottom end of the lifting groove 213 under the action of magnetic force, so that the position of the sealing baffle 230 is reset, and after the gas in the annular airbag 510 is emptied, the end of the rotating device 200 can be pulled out of the patient's ear canal.

[0056] The foregoing description of specific exemplary embodiments of the present invention is for the purpose of illustration and demonstration. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the present invention and various different selections and changes. The scope of the present invention is intended to be limited by the specification and its equivalents.

Claims

1. An ear canal spray device for treating ear diseases, characterized in that: It includes a medicine storage device, a rotating device arranged above the medicine storage device, a driving device for driving the rotating device to rotate, a mist spray device arranged inside the rotating device, and a sealing mechanism for sealing the patient's ear canal; The medicine storage device comprises a medicine storage tank and a partition for placing the medicine liquid; The rotating device comprises a rotating rod, a lifting portion arranged inside the rotating rod, and a pair of sealing baffles that can move inside the rotating rod; The lifting part includes a magnetic plate, a slide plate moving with the magnetic plate, and a protruding rod arranged on the outer wall of the slide plate. When the protruding rod moves upward with the magnetic plate, it drives the sealing baffle plate to move outward, and cooperates with the sealing mechanism to seal the medicine application area in the patient's ear canal to prevent the medicine from flowing out; The driving device includes a driving motor, a driving shaft rotating with the output shaft of the driving motor, a cam sleeved on the outside of the driving shaft, a piston plate moving under the partition as the cam rotates, and a spring for pushing the piston plate to move toward the cam. When the piston plate moves, the airflow is sent to the top of the partition to pressurize the storage space of the liquid medicine. The mist spray device includes a docking shaft and a moving block sleeved on the outside of the docking shaft. A bidirectional threaded groove is provided on the outer wall of the docking shaft. When the docking shaft rotates, the moving block reciprocates up and down on its outer side, allowing the nozzle on the moving block to evenly spray the medicine into the patient's ear canal.

2. The ear canal spray device for treating ear diseases according to claim 1, characterized in that: The medicine storage device also includes a limiting ring integrally formed on the top surface of the medicine storage tank, an upper insert tube clamped and fixed on the top surface of the medicine storage tank, a liquid passage tube clamped on the inner top surface of the medicine storage tank, and an air outlet valve threadedly connected to the top surface of the partition, and the bottom end of the liquid passage tube extends to a position near the bottom of the medicine storage tank.

3. The ear canal spray device for treating ear diseases according to claim 2, characterized in that: The rotating rod is rotatably connected to the outside of the limiting ring, and a rod wall groove is provided near the top of the outer wall of the rotating rod for providing a moving range for the internal structure of the mist spray device, and a connecting hole connected to the bottom surface of the rotating rod is provided on the bottom groove wall of the rod wall groove, and a pulling groove is provided near the bottom of the rotating rod for providing a moving range for the internal structure of the rotating device.

4. The ear canal spray device for treating ear diseases according to claim 3, characterized in that: The outer wall of the rotating rod is provided with two parallel rod wall ring grooves, the rotating rod is provided with a placement groove on the outer side of the rod wall groove to provide a moving range for the sealing baffle, and the inside of the placement groove is provided with a sliding groove for providing a moving range for the internal structure of the rotating device.

5. The ear canal spray device for treating ear diseases according to claim 4, characterized in that: The magnetic plate is slidably connected to the inside of the lifting groove, the slide plate is slidably connected to the inside of the slide groove, the convex rod is integrally formed with the slide plate and the end portion extends to the inside of the placement groove, a pair of connecting rods are clamped between the magnetic plate and the slide plate, a connecting rope is adhered to the top surface of the magnetic plate, the other end of the connecting rope extends to the outside of the rotating rod and a lifting ring is adhered at the end portion, and medical staff can pull the lifting ring from the outside to pull the magnetic plate to move inside the lifting groove through the connecting rope.

6. The ear canal spray device for treating ear diseases according to claim 5, characterized in that: The sealing baffle is slidably connected to the inside of the placement groove, and a guide groove is provided on the outer wall of the sealing baffle to provide a moving range for the convex rod. When the convex rod moves with the slide plate, the contact position between the end of the convex rod and the wall of the guide groove changes, allowing the sealing baffle to move inside the placement groove and allowing the rubber at the end to come into contact with the inner wall of the patient's ear canal.

7. The ear canal spray device for treating ear diseases according to claim 1, characterized in that: The driving motor is fixedly connected to the bottom surface of the medicine storage tank by screws, the driving shaft is coaxially connected to the output shaft of the driving motor, the top end of the driving shaft is rotatably connected to the top surface of the medicine storage tank, the end of the driving shaft is integrally formed with an external convex strip, and the cam is clamped and fixed to the outer side wall of the driving shaft.

8. The ear canal spray device for treating ear diseases according to claim 1, characterized in that: The piston plate is slidably connected in the space below the medicine storage tank and the partition. A docking pulley that contacts the outer wall of the cam is clamped on the outer wall of the piston plate through a round rod. One end of the spring is adhered to the outer wall of the piston plate and the other end is adhered to the inner wall of the medicine storage tank. A telescopic rod is inserted into the spring, and both ends of the telescopic rod are respectively clamped on the side walls of the piston plate and the medicine storage tank.

9. The ear canal spray device for treating ear diseases according to claim 1, characterized in that: The docking shaft is rotatably connected to the inside of the rotating rod, and a docking groove adapted to the top of the driving shaft is provided at the bottom end of the docking shaft. The moving block is slidably connected to the inside of the groove of the rod wall. A number of regularly distributed electrically controlled nozzles and a miniature camera and a searchlight for observing the patient's ear canal are provided on the outer wall of the moving block. The bottom end of the moving block is clamped with a lower insert tube slidably connected to the inside of the connecting hole.

10. The ear canal spray device for treating ear diseases according to claim 1, characterized in that: The sealing mechanism comprises an annular airbag adhered to the slot wall in the rod wall annular groove, a vent pipe connected between two annular airbags, and a docking cover body clamped at the bottom ends of the two vent pipes.

Citation Information

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