Liquid external medicine smearing device

By designing a liquid external drug application device, the problem of difficult control of the amount of drug application and inconvenient cleaning of the device is solved, and more flexible cotton swab selection, liquid flow rate adjustment and convenient operation and cleaning of the device are achieved.

CN119607396APending Publication Date: 2025-03-14TIANJIN MEDICAL UNIVERSITY GENERAL HOSPITAL
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Patent Information

Application Number
CN202411827376.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-12
Publication Date
2025-03-14

AI Technical Summary

Technical Problem

During the application of external medicine, the amount of liquid external medicine is not easy to control. Using a single cotton swab for a single application of medicine leads to insufficient dose or the use of multiple cotton swabs, which leads to waste. The existing application device is formed in one piece and should not be disassembled or is inconvenient to clean, which affects the standardized application of patients.

Method used

A liquid external drug application device is designed, including a smear cover, a liquid control plate, a fixing member and a clamping member. Through the differentiated cotton swab hole size design, the setting of the fixing clip, the adjustment of the liquid control hole and the closure assembly of the rotary sealing cover, the liquid flow rate control and the convenient cleaning of the device are achieved.

Benefits of technology

The device provides a more flexible cotton swab selection, enhances the fixing stability of different sizes of cotton swabs, can adjust the flow rate of the medicine liquid according to different scenarios, reduce waste of medicine liquid, improve the applicability and practicality of the device, and facilitates cleaning and storage.

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Abstract

The liquid external medicine smearing device comprises a smearing cover, a liquid control disc is fixedly connected to the position, close to an opening, of an inner cavity of the smearing cover, and the top of the smearing cover and the bottom of the liquid control disc are provided with a functional area and a rotating area which are symmetrically arranged left and right correspondingly; the surface of the rotating area is provided with a sealing assembly used for sealing the functional area, the functional area located at the top of the smearing cover is provided with a fixing piece used for fixing cotton swabs, more cotton swab selection flexibility is provided for a user through differentiated aperture design, cotton swabs of different sizes are possibly needed for different smearing tasks and parts, and the smearing effect is good. Therefore, the cotton swab using requirements in various different scenes can be met, a user does not need to additionally prepare various smearing devices of different specifications, operation is convenient, meanwhile, the one-time using amount of the medical cotton swab can be selected according to the size requirement of the smearing skin lesion position, the use insufficiency and waste of the medical cotton swab are reduced, and the applicability and practicability of the device are improved.
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Description

Technical Field

[0001] The invention relates to the technical field of liquid external medicine smearing devices, in particular to a liquid external medicine smearing device. Background Art

[0002] The skin is the largest peripheral organ of the human body. The use of topical medications is one of the commonly used treatments for skin diseases. Use a cotton swab to gently and evenly push the drug to the periphery so that the drug is evenly distributed on the skin surface, forming a thin drug film, so that the drug can work locally.

[0003] In the process of applying topical medications, it is often difficult to control the amount of liquid topical medications applied; using a single cotton swab for a single application results in insufficient dosage, affecting the treatment effect, or using multiple cotton swabs causes waste; there is also frequent repeated dipping of the medication liquid, causing contamination of the medication liquid in the bottle; and currently, medication applicators are often integrally formed, difficult to disassemble, and inconvenient to clean, which is not conducive to patients applying liquid topical medications in a standardized manner. Summary of the invention

[0004] The purpose of the present invention is to provide a liquid topical medicine application device to solve the problems raised in the above-mentioned background technology that, during the process of applying the topical medicine, the amount of liquid topical medicine applied is often difficult to control; a single cotton swab is used to apply the medicine for a single time, resulting in insufficient dosage affecting the treatment effect or using multiple cotton swabs causing waste; there is also frequent repeated dipping of the medicine liquid, resulting in contamination of the medicine liquid in the bottle; and the current application device is often integrally formed, not easy to disassemble, inconvenient to clean, and not conducive to the patient's standardized application of the liquid topical medicine.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A liquid external medicine smearing device comprises an smearing cover, wherein a liquid control plate is fixedly connected to the inner cavity of the smearing cover and a position near the mouth, the top of the smearing cover and the bottom of the liquid control plate are respectively provided with a functional area and a rotating area which are symmetrically arranged on the left and right, the surface of the rotating area is provided with a sealing component for sealing the functional area, the functional area located at the top of the smearing cover is provided with a fixing part for fixing a cotton swab, and the functional area located at the bottom of the liquid control plate is provided with a liquid control component for controlling the speed of the medicine liquid flowing into the interior of the smearing cover, the bottoms of both sides of the smearing cover are connected to fixed covers by clamping parts, and the inner wall of the fixed cover is provided with a first internal thread for connecting to a medicine bottle.

[0007] Preferably, the sealing assembly includes a sealing cover arranged in the rotating area, a protrusion is fixedly connected to the top of one end of the sealing cover, and connecting columns are fixedly connected at the top of the smear cover and the center of the bottom of the liquid control disk, two groups of connecting columns respectively penetrate the corresponding side sealing covers, and the tops of the two groups of connecting columns are respectively fixedly connected to limiting plates, and the surfaces of the two groups of limiting plates respectively contact the surfaces of the corresponding side sealing covers.

[0008] Preferably, the fixing member includes a first cotton swab insertion hole and a second cotton swab insertion hole opened on the surface of the top functional area of ​​the smear cover, and the upper edges of the first cotton swab insertion hole and the second cotton swab insertion hole are both provided with an arc groove, and the inner cavity of the arc groove is provided with a semicircular fixing clamp for clamping the cotton swab.

[0009] Preferably, the liquid control assembly includes a plurality of groups of liquid control holes opened on the surface of the functional area at the bottom of the liquid control plate.

[0010] Preferably, the snap-fitting member comprises a first snap fixedly connected to the bottom of both sides of the application cover, and a second snap fixedly connected to the top of both sides of the fixed cover and at positions corresponding to the first snap, and the first snap and the second snap can engage with each other.

[0011] Preferably, a trapezoidal cover is inserted into the middle of the fixed cover, a liquid outlet is provided at the top of the trapezoidal cover, second internal threads are provided on the inner inclined surfaces on both sides of the trapezoidal cover, and a sealing ring is fixedly connected to the top of the fixed cover and around the trapezoidal cover, and the diameter of the sealing ring is adapted to match the inner diameter of the smear cover.

[0012] Preferably, annular grooves are provided on the surface of the application cover and on the inner wall and at positions corresponding to the outer cylindrical surface of the sealing cover, the inner cavities of the two groups of the annular grooves are rotatably connected to the limiting semi-rings, and the inner arc surfaces of the two groups of the limiting semi-rings are respectively fixedly connected to the outer cylindrical surfaces of the sealing covers at corresponding positions.

[0013] Preferably, the diameter of the first cotton swab insertion hole is twice that of the second cotton swab insertion hole.

[0014] Preferably, an insulating layer is provided on the top inner wall of the application cover.

[0015] Preferably, bolts are respectively inserted into the tops of the two groups of semicircular fixing clamps, and the bolts respectively penetrate the semicircular fixing clamps on the corresponding sides and are threadedly connected to the inner cavities of the arc-shaped grooves on the corresponding sides.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention provides users with more flexibility in cotton swab selection through the setting of the first cotton swab insertion hole and the second cotton swab insertion hole. The differentiated aperture design may require cotton swabs of different sizes for different smearing tasks and parts, thereby being able to meet the cotton swab usage requirements in various scenarios. The user does not need to prepare a variety of smearing devices of different specifications, which facilitates operation. At the same time, the disposable amount of medical cotton swabs can be selected according to the size of the smeared skin lesion position, thereby reducing the insufficient use and waste of medical cotton swabs and improving the applicability and practicality of the device.

[0018] 2. The present invention enhances the fixing stability of cotton swabs of different sizes and the replacement after use by setting a fixing clip, so that the device can be widely used in various drug application scenarios, thereby improving its versatility and practicality.

[0019] 3. The present invention sets the liquid control holes and rotates the sealing cover on the surface of the liquid control plate to cover part of the liquid control holes on the liquid control plate, thereby adjusting the flow rate of the liquid medicine and further controlling the application dosage of the liquid medicine.

[0020] 4. The present invention can easily realize the opening and closing operations of the functional areas by rotating the sealing cover through the setting of the sealing component. When stored, the sealing cover is rotated in sequence, and the sealing cover located in the rotating area covers the functional areas at the corresponding positions to keep the surface and interior of the coating cover clean.

[0021] 5. The setting of the first buckle and the second buckle provides a stable and reliable connection method between the application cover and the fixed cover. At the same time, it has strong mechanical strength and stability, can withstand external force impact, vibration and pulling within a certain range, and makes the installation and disassembly operations between the application cover and the fixed cover more convenient, without the use of special tools or complicated operating steps. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic structural diagram of the liquid external medicine application device of the present invention;

[0023] Figure 2 It is a schematic diagram of the structure after explosion of the present invention;

[0024] Figure 3 It is a structural schematic diagram of the location of the functional area of ​​the present invention;

[0025] Figure 4 It is a schematic diagram of the structure of the present invention when viewed from above;

[0026] Figure 5 It is a schematic structural diagram of the insulating layer of the present invention;

[0027] Figure 6 For the present invention Figure 3 A schematic diagram of the enlarged structure at A in the middle;

[0028] Figure 7 It is a structural schematic diagram of the sealing cover of the present invention;

[0029] Figure 8 It is a schematic diagram of the structure inside the fixed cover of the present invention.

[0030] In the figure: 100, smear cover; 101, first buckle; 102, rotating area; 103, second cotton swab insertion hole; 104, insulating layer; 105, functional area; 106, first cotton swab insertion hole; 200, fixing cover; 201, second buckle; 202, trapezoidal cover; 203, sealing ring; 204, liquid outlet; 205, first internal thread; 206, second internal thread; 300, sealing cover; 301, bump; 302, annular groove; 303, limiting semi-ring; 304, limiting plate; 305, connecting column; 400, liquid control plate; 401, liquid control hole; 500, arc groove; 501, bolt; 502, semicircular fixing clamp. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of 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 of 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.

[0032] See also Figure 1-8 The present embodiment provides a liquid external medicine smearing device, comprising an smearing cover 100, a liquid control plate 400 is fixedly connected to the inner cavity of the smearing cover 100 and the position near the mouth, a functional area 105 and a rotating area 102 are respectively provided at the top of the smearing cover 100 and the bottom of the liquid control plate 400, which are symmetrically arranged on the left and right, a sealing component for sealing the functional area 105 is provided on the surface of the rotating area 102, a fixing part for fixing a cotton swab is provided at the functional area 105 at the top of the smearing cover 100, and a liquid control component for controlling the speed of the liquid medicine flowing into the smearing cover 100 is provided at the functional area 105 at the bottom of the liquid control plate 400, and a fixed cover 200 is connected to the bottom of both sides of the smearing cover 100 through a clamping part, and a first internal thread 205 for connecting a medicine bottle is provided on the inner wall of the fixed cover 200;

[0033] The fixing part includes a first cotton swab insertion hole 106 and a second cotton swab insertion hole 103 which are opened on the surface of the top functional area 105 of the application cover 100. The upper edges of the first cotton swab insertion hole 106 and the second cotton swab insertion hole 103 are both provided with an arc groove 500. The inner cavity of the arc groove 500 is provided with a semicircular fixing clip 502 for clamping the cotton swab. Through the setting of the fixing clip, the fixing stability of cotton swabs of different sizes and the replacement after use are enhanced, so that the device can be widely used in various drug application scenarios, thereby improving its versatility and practicality.

[0034] The semicircular fixing clip 502 is usually made of a material with a certain elasticity, such as nylon, ABS, rubber, etc., which is soft and non-slip, can protect the surface of the cotton swab, and has a low cost. At the same time, according to the needs, a metal material can also be selected, such as stainless steel, aluminum alloy, etc., which has high strength and good durability and can withstand a large force.

[0035] At the same time, both ends of the semicircular fixing clip 502 usually have a certain transition treatment to avoid sharp corners, make the appearance more rounded, and prevent scratches on the cotton swab in contact.

[0036] Preferably, the sealing component includes a sealing cover 300 arranged in the rotating area 102, a protrusion 301 is fixedly connected to the top of one end of the sealing cover 300, and a connecting column 305 is fixedly connected to the top of the smear cover 100 and the center of the bottom of the liquid control plate 400, and two groups of connecting columns 305 respectively penetrate the corresponding side sealing covers 300, and the tops of the two groups of connecting columns 305 are respectively fixedly connected to limiting plates 304, and the surfaces of the two groups of limiting plates 304 respectively contact the surfaces of the corresponding side sealing covers 300. Through the setting of the sealing component, the opening and closing operations of the functional area 105 can be easily realized by rotating the sealing cover 300. When stored, the sealing cover 300 located in the rotating area 102 is rotated in sequence to cover the functional area 105 at the corresponding position, so as to keep the surface and interior of the smear cover 100 clean.

[0037] Furthermore, the liquid control component includes a plurality of groups of liquid control holes 401 opened on the surface of the functional area 105 at the bottom of the liquid control plate 400. Through the setting of the liquid control holes 401, the sealing cover 300 located on the surface of the liquid control plate 400 is rotated to cover part of the liquid control holes 401 on the liquid control plate 400, thereby adjusting the flow rate of the liquid medicine and further controlling the application dosage of the liquid medicine.

[0038] Preferably, the snap-on component includes a first snap 101 fixedly connected to the bottom of both sides of the application cover 100, and a second snap 201 is fixedly connected to the top of both sides of the fixing cover 200 and at a position corresponding to the first snap 101. The first snap 101 and the second snap 201 can be engaged with each other. Through the setting of the first snap 101 and the second snap 201, a stable and reliable connection method is provided between the application cover 100 and the fixing cover 200. At the same time, it has strong mechanical strength and stability, can withstand external force impact, vibration and pulling within a certain range, and makes the installation and disassembly operations between the application cover 100 and the fixing cover 200 more convenient, without the need to use special tools or complicated operating steps.

[0039] It is worth mentioning that a trapezoidal cover 202 is inserted into the middle of the fixed cover 200, a liquid outlet 204 is provided on the top of the trapezoidal cover 202, and second internal threads 206 are provided on the inner inclined surfaces on both sides of the trapezoidal cover 202. A sealing ring 203 is fixedly connected to the top of the fixed cover 200 and around the trapezoidal cover 202. The diameter of the sealing ring 203 is matched with the inner diameter of the smear cover 100. Through the setting of the trapezoidal cover 202, the second internal threads 206 on the inner inclined surfaces on both sides of the trapezoidal cover 202 are convenient for threaded connection with medicine bottles of different specifications and models, thereby improving the applicability of the device. At the same time, the sealing ring 203 seals the connection between the fixed cover 200 and the smear cover 100, effectively preventing the liquid medicine from leaking from the connection between the fixed cover 200 and the smear cover 100.

[0040] Among them, the second internal thread 206 is opened on the inner inclined surfaces on both sides of the trapezoidal cover 202. The tooth type, pitch and other parameters of the second internal thread 206 should be compatible with the common external thread of the medicine bottle. For example, a standard triangular thread is adopted, and the pitch is determined according to the common specifications of the target medicine bottle cap to ensure that it can tightly bite the external thread of the mouth of the medicine bottle to achieve effective fixed connection.

[0041] Furthermore, annular grooves 302 are provided on the surface and the inner wall of the smear cover 100 and at positions corresponding to the outer circumferential surface of the sealing cover 300. The inner cavities of the two groups of annular grooves 302 are rotatably connected to the limiting semi-rings 303. The inner arc surfaces of the two groups of limiting semi-rings 303 are respectively fixedly connected to the outer circumferential surfaces of the sealing cover 300 at the corresponding positions. By setting the limiting semi-rings 303 and the annular grooves 302, the annular grooves 302 provided on the surface and the inner wall of the smear cover 100, and the limiting semi-rings 303 rotatably connected in the inner cavity of the annular grooves 302, are fixedly connected to the outer circumferential surface of the sealing cover 300, so that the sealing cover 300 can rotate freely. The movement provides stable guidance and support. During the opening and closing process of the sealing cover 300, the limiting semi-ring 303 limits the range of movement of the sealing cover 300, so that it can only rotate smoothly around the connecting column 305 in a predetermined annular track, thereby preventing the sealing cover 300 from shaking, offset or leaving the correct position due to external interference or improper operation. At the same time, the limiting semi-ring 303 is rotatably connected to the inner cavity of the annular groove 302 and has a large contact area. In the absence of external force pushing the sealing cover 300, the sealing cover 300 will not rotate, thereby ensuring the shielding effect of the functional area 105.

[0042] Preferably, the diameter of the first cotton swab insertion hole 106 is twice that of the second cotton swab insertion hole 103, wherein the optimal diameter of the first cotton swab insertion hole 106 is 1CM, and the optimal diameter of the second cotton swab insertion hole 103 is 0.5CM. The diameter of the first cotton swab insertion hole 106 is twice that of the second cotton swab insertion hole 103. Through the setting of the first cotton swab insertion hole 106 and the second cotton swab insertion hole 103, the differentiated aperture design provides users with more flexibility in cotton swab selection. Different smearing tasks and parts may require cotton swabs of different sizes, thereby meeting the cotton swab usage requirements in various scenarios. There is no need for users to prepare a variety of smearing devices of different specifications, which facilitates operation. At the same time, the disposable amount of medical cotton swabs can be selected according to the size requirements of the smeared skin lesion position, reducing insufficient use and waste of medical cotton swabs and improving the applicability and practicality of the device.

[0043] Furthermore, an insulating layer 104 is provided on the top inner wall of the smear cover 100 , wherein the insulating layer 104 is a combination of one or more materials such as tin foil, aluminum foil, polytetrafluoroethylene, etc. The setting of the insulating layer 104 prevents the drug solution from adhering to the inner wall of the smear cover 100 .

[0044] Furthermore, bolts 501 are respectively inserted into the tops of the two groups of semicircular fixing clamps 502, and the bolts 501 respectively penetrate the corresponding side semicircular fixing clamps 502 and are threadedly connected to the inner cavity of the corresponding side arc groove 500. Through the arrangement of the bolts 501, when greater pressure is applied or a more intense smearing action is performed, the cotton swab may be pulled by a greater external force, and the tightening action of the bolts 501 enables the semicircular fixing clamps 502 to tightly clamp the cotton swab, providing a strong clamping force, effectively preventing the cotton swab from falling off or shifting during use, ensuring that the medicine can be accurately and evenly applied to the target area, and avoiding problems such as drug waste, uneven smearing or contamination caused by loose cotton swabs. At the same time, when the elasticity of the semicircular fixing clamps 502 decreases and the clamping effect on the cotton swab decreases, the bolts 501 are removed, thereby facilitating the removal of the semicircular fixing clamps 502 and replacing them.

[0045] Working principle:

[0046] First, the mouth of the medicine bottle is threadedly connected to the inner cavity of the fixed cover 200, and then the sealing cover 300 located on the surface of the liquid control plate 400 is rotated to cover part of the liquid control holes 401 on the liquid control plate 400, so as to adjust the flow rate of the liquid medicine. At this time, the first buckles 101 on both sides of the smear cover 100 are engaged with the second buckles 201 on both sides of the fixed cover 200, and the smear cover 100 is connected with the fixed cover 200;

[0047] Then, according to the number or size of cotton swabs used, the cotton swabs are inserted into the first cotton swab insertion hole 106 or the second cotton swab insertion hole 103, and the cotton swabs are fixed by the semicircular fixing clip 502 at the corresponding position, and the sealing cover 300 is rotated to close the first cotton swab insertion hole 106 or the second insertion hole that is not needed;

[0048] When applying the liquid medicine, the fixed cover 200 and the smear cover 100 are tilted to facilitate the liquid medicine in the medicine bottle to flow through the liquid outlet hole to the liquid control hole 401, and then flow to the first cotton swab insertion hole 106 or the second cotton swab insertion hole 103 at the top of the smear cover 100, so as to wet the cotton swab in the inner cavity, and replace the cotton swab in time after use;

[0049] When the application is finished, the application cover 100 and the fixed cover 200 are separated, cleaned, and rotated in sequence. The sealing cover 300 located in the rotating area 102 covers the functional area 105 at the corresponding position to keep the surface and interior of the application cover 100 clean.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A liquid external medicine application device, characterized in that: The invention comprises an smear cover (100), wherein a liquid control plate (400) is fixedly connected to the inner cavity of the smear cover (100) and a position near the mouth thereof, wherein the top of the smear cover (100) and the bottom of the liquid control plate (400) are respectively provided with a functional area (105) and a rotating area (102) which are arranged symmetrically on the left and right, wherein a sealing component for sealing the functional area (105) is provided on the surface of the rotating area (102), wherein the functional area (105) located at the top of the smear cover (100) is provided with a fixing part for fixing a cotton swab, and wherein the functional area (105) located at the bottom of the liquid control plate (400) is provided with a liquid control component for controlling the speed at which a medicine liquid flows into the interior of the smear cover (100), wherein the bottoms of both sides of the smear cover (100) are connected with a fixing cover (200) via a clamping part, and wherein the inner wall of the fixing cover (200) is provided with a first internal thread (205) for connecting a medicine bottle.

2. A liquid external medicine application device according to claim 1, characterized in that: The sealing component comprises a sealing cover (300) arranged in the rotating area (102), a protrusion (301) is fixedly connected to the top of one end of the sealing cover (300), a connecting column (305) is fixedly connected to the top of the smear cover (100) and the center of the bottom of the liquid control plate (400), two groups of the connecting columns (305) respectively penetrate the corresponding side sealing covers (300), the tops of the two groups of the connecting columns (305) are respectively fixedly connected to the limiting plates (304), and the surfaces of the two groups of the limiting plates (304) respectively contact the surfaces of the corresponding side sealing covers (300).

3. A liquid external medicine application device according to claim 1, characterized in that: The fixing member comprises a first cotton swab insertion hole (106) and a second cotton swab insertion hole (103) which are opened on the surface of the top functional area (105) of the smear cover (100); an arc-shaped groove (500) is opened at the upper edge of the first cotton swab insertion hole (106) and the second cotton swab insertion hole (103); and a semicircular fixing clamp (502) for clamping the cotton swab is arranged in the inner cavity of the arc-shaped groove (500).

4. A liquid external medicine application device according to claim 1, characterized in that: The liquid control assembly comprises a plurality of groups of liquid control holes (401) opened on the surface of the functional area (105) at the bottom of the liquid control plate (400).

5. A liquid external medicine smearing device according to claim 1, characterized in that: The snap-fitting member comprises a first snap (101) fixedly connected to the bottom of both sides of the smear cover (100), and a second snap (201) fixedly connected to the top of both sides of the fixed cover (200) and at positions corresponding to the first snap (101), and the first snap (101) and the second snap (201) can be engaged with each other.

6. A liquid external medicine application device according to claim 1, characterized in that: A trapezoidal cover (202) is inserted into the middle of the fixed cover (200), a liquid outlet (204) is provided at the top of the trapezoidal cover (202), and second internal threads (206) are provided on the inner inclined surfaces on both sides of the trapezoidal cover (202). A sealing ring (203) is fixedly connected to the top of the fixed cover (200) and around the trapezoidal cover (202), and the diameter of the sealing ring (203) is adapted to match the inner diameter of the smear cover (100).

7. A liquid external medicine application device according to claim 2, characterized in that: Annular grooves (302) are provided on the surface of the application cover (100) and on the inner wall thereof and at positions corresponding to the outer circumferential surface of the sealing cover (300); the inner cavities of the two groups of the annular grooves (302) are rotatably connected to the limiting semi-rings (303); the inner arc surfaces of the two groups of the limiting semi-rings (303) are respectively fixedly connected to the outer circumferential surfaces of the sealing cover (300) at corresponding positions.

8. A liquid external medicine application device according to claim 3, characterized in that: The diameter of the first cotton swab insertion hole (106) is twice that of the second cotton swab insertion hole (103).

9. A liquid external medicine application device according to claim 1, characterized in that: The top inner wall of the application cover (100) is provided with an insulating layer (104).

10. A liquid external medicine application device according to claim 3, characterized in that: Bolts (501) are respectively inserted into the tops of the two groups of semicircular fixing clamps (502), and the bolts (501) respectively penetrate the corresponding side semicircular fixing clamps (502) and are threadedly connected to the inner cavity of the corresponding side arc-shaped groove (500).