A dermatological external agent applicator

By designing an adaptive application mechanism and a drug-dispensing mechanism for dermatological topical medications, the problems of uneven application or missed application were solved, achieving uniform application of medications on uneven skin surfaces and promoting the healing of wounds.

CN224292341UActive Publication Date: 2026-05-29FOURTH MILITARY MEDICAL UNIVERSITY

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FOURTH MILITARY MEDICAL UNIVERSITY
Filing Date
2024-12-30
Publication Date
2026-05-29

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Abstract

The utility model belongs to the field of applicator, specifically is a kind of dermatological external medicine applicator, including self-adapting mechanism, the one side of self-adapting mechanism is provided with push medicine mechanism, the top of push medicine mechanism is provided with clamping mechanism, and self-adapting mechanism includes installation box;The utility model is through the cooperation of self-adapting mechanism, push medicine mechanism and clamping mechanism, when clamping mechanism is clamped to push medicine mechanism, operator injects medicine into medicine delivery pipe through medicine inlet, then rotates clamping mechanism to make it lose the clamping of push medicine mechanism, at this time, push medicine mechanism pushes out medicine, and self-adapting mechanism is used to coat medicine on the uneven skin of patient, avoid the uneven coating or the situation of missing coating due to the uneven skin of patient in the process of coating medicine, and the healing of patient's wound is affected.
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Description

Technical Field

[0001] This utility model relates to the field of applicators, specifically a topical dermatology applicator. Background Technology

[0002] An applicator is generally a tool or instrument used to evenly apply medications, skin care products or other liquid substances to a specific area (such as skin, mucous membranes, mouth, etc.). Special applicators are generally required for the application of topical dermatological medications.

[0003] When applying topical medications to patients in the dermatology department, the unevenness of the patient's skin can easily lead to uneven application or missed areas, which can affect the healing of the patient's wounds. Utility Model Content

[0004] To address the shortcomings of existing technologies, which are prone to uneven application or missed application during medication application due to the unevenness of the patient's skin, thus affecting the healing of the affected area, this invention proposes a dermatological topical medication applicator.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a dermatological topical medication applicator, including an adaptive applicator mechanism, a medication pushing mechanism on one side of the adaptive applicator mechanism, and a snap-fit ​​mechanism on the top of the medication pushing mechanism.

[0006] The adaptive coating mechanism includes an installation box, the inner cavity of which is fixedly connected to a fixed compartment, and the number of fixed compartments is several. The inner cavity of the fixed compartment is movably connected to a connecting rod, the bottom of the connecting rod is fixedly connected to a fixed block, the inner cavity of the fixed block is fixedly connected to a support shaft, the surface of the support shaft is movably connected to a rotating block, the bottom of the rotating block is fixedly connected to a fixed column, and the bottom of the fixed column is fixedly connected to an elastic scraper.

[0007] Preferably, a limiting block is fixedly connected to the top of the connecting rod, the surface of the limiting block is movably connected to the inner cavity of the fixing chamber, and a first spring is movably connected to the inner cavity of the fixing chamber. One end of the first spring is fixedly connected to the top of the inner cavity of the fixing chamber, and the other end of the first spring is fixedly connected to the top of the limiting block.

[0008] Preferably, the drug delivery mechanism includes a drug delivery tube, one end of which is fixedly connected to a drug storage box. One side of the drug storage box is fixedly connected to one side of the mounting box. The inner cavity of the drug delivery tube is connected to the inner cavity of the drug storage box. The bottom of the drug storage box is fixedly connected to a spray nozzle. A square piston is movably connected to the inner cavity of the drug delivery tube. One end of the square piston is fixedly connected to a push rod. The surface of the push rod is movably connected to the inner cavity of the drug delivery tube. One end of the push rod is fixedly connected to a push block.

[0009] Preferably, the top of the drug delivery tube is fixedly connected to a drug inlet, the inner cavity of the drug inlet is connected to the inner cavity of the drug delivery tube, and a cover plate is threadedly connected to the surface of the drug inlet.

[0010] Preferably, a second spring is fitted onto the surface of the push rod, with one end of the second spring fixedly connected to the surface of the push block and the other end of the second spring fixedly connected to the surface of the drug delivery tube.

[0011] Preferably, the locking mechanism includes a fixing frame, the bottom of which is fixedly connected to the top of the drug delivery tube, and a screw is threadedly connected to the inner cavity of the fixing frame, one end of which is movably connected to the inner cavity of the push rod.

[0012] Preferably, a rotating handle is fixedly connected to the top of the screw, and a number of protrusions are fixedly connected to the surface of the rotating handle.

[0013] The advantages of this utility model are:

[0014] This invention utilizes an adaptive application mechanism, a drug-pushing mechanism, and a locking mechanism in conjunction. When the locking mechanism engages with the drug-pushing mechanism, the operator injects medication into the delivery tube through the inlet. Then, rotating the locking mechanism releases the drug-pushing mechanism, allowing the drug-pushing mechanism to simultaneously push out the medication and apply it to the uneven areas of the patient's skin using the adaptive application mechanism. This avoids the problem of uneven application or missed areas that can easily occur when applying medication to uneven skin, thus preventing any impact on the healing of the patient's wound. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 this utility model. 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 main body structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the drug delivery tube structure of this utility model;

[0018] Figure 3 This is a schematic cross-sectional view of the drug delivery tube of this utility model;

[0019] Figure 4 This is an exploded view of the mounting box of this utility model;

[0020] Figure 5 This is an exploded view of the fixed compartment structure of this utility model;

[0021] Figure 6 This is a schematic diagram of the fixing frame structure of this utility model.

[0022] In the diagram: 1. Adaptive application mechanism; 101. Mounting box; 102. Connecting rod; 103. Fixing chamber; 104. Fixing block; 105. Elastic scraper; 106. Fixing column; 107. Rotating block; 108. Support shaft; 109. Limiting block; 110. First spring; 2. Medicine pushing mechanism; 201. Cover plate; 202. Medicine inlet; 203. Medicine delivery tube; 204. Second spring; 205. Push rod; 206. Push block; 207. Medicine storage box; 208. Spray nozzle; 209. Square piston; 3. Snap-fit ​​mechanism; 301. Fixing frame; 302. Screw; 303. Rotating handle. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0024] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0025] This application discloses a topical dermatology applicator. (See attached embodiment.) Figure 1 and Figure 6 A topical dermatological medication applicator includes an adaptive applicator 1, a medication pushing mechanism 2 on one side of the adaptive applicator 1, and a snap-fit ​​mechanism 3 on the top of the medication pushing mechanism 2.

[0026] The adaptive coating mechanism 1 includes a mounting box 101. The inner cavity of the mounting box 101 is fixedly connected to a fixed chamber 103. There are several fixed chambers 103. The inner cavity of the fixed chamber 103 is movably connected to a connecting rod 102. The bottom of the connecting rod 102 is fixedly connected to a fixed block 104. The inner cavity of the fixed block 104 is fixedly connected to a support shaft 108. The surface of the support shaft 108 is movably connected to a rotating block 107. The bottom of the rotating block 107 is fixedly connected to a fixed column 106. The bottom of the fixed column 106 is fixedly connected to an elastic scraper 105.

[0027] Reference Figure 5 A limiting block 109 is fixedly connected to the top of the connecting rod 102. The surface of the limiting block 109 is movably connected to the inner cavity of the fixing chamber 103. A first spring 110 is movably connected to the inner cavity of the fixing chamber 103. One end of the first spring 110 is fixedly connected to the top of the inner cavity of the fixing chamber 103, and the other end of the first spring 110 is fixedly connected to the top of the limiting block 109. The limiting block 109 is used to limit the connecting rod 102, so that the connecting rod 102 will not leave the inside of the fixing chamber 103 when it moves in the inner cavity of the fixing chamber 103. The first spring 110 is used to indirectly drive each elastic scraper 105 to apply evenly when it passes over the uneven surface of the patient's skin.

[0028] Reference Figure 2 and Figure 3 The drug delivery mechanism 2 includes a drug delivery tube 203, one end of which is fixedly connected to a drug storage box 207. One side of the drug storage box 207 is fixedly connected to one side of the mounting box 101. The inner cavity of the drug delivery tube 203 communicates with the inner cavity of the drug storage box 207. A spray nozzle 208 is fixedly connected to the bottom of the drug storage box 207. A square piston 209 is movably connected to the inner cavity of the drug delivery tube 203. One end of the square piston 209 is fixedly connected to a push rod 205. The surface of the rod 205 is movably connected to the inner cavity of the drug delivery tube 203. One end of the push rod 205 is fixedly connected to the push block 206. By setting up the drug delivery tube 203, push rod 205, drug storage box 207, spray nozzle 208 and square piston 209, the movement of the push block 206 indirectly drives the square piston 209 to move, thereby pushing the drug inside the drug delivery tube 203 into the inner cavity of the drug storage box 207, and finally spraying it out from the spray nozzle 208.

[0029] Reference Figure 2 The top of the infusion tube 203 is fixedly connected to an inlet 202. The inner cavity of the inlet 202 is connected to the inner cavity of the infusion tube 203. A cover plate 201 is threadedly connected to the surface of the inlet 202. The medicine to be applied can be injected into the inner cavity of the infusion tube 203 through the inlet 202. Then the cover plate 201 is tightened to the surface of the inlet 202 to seal it.

[0030] Reference Figure 2 A second spring 204 is sleeved on the surface of the push rod 205. One end of the second spring 204 is fixedly connected to the surface of the push block 206, and the other end of the second spring 204 is fixedly connected to the surface of the drug delivery tube 203. As shown in the figure, the second spring 204 is in the open state. When no external force is applied to the push rod 205, the elastic action of the second spring 204 will drive the push block 206 to move, thereby indirectly driving the square piston 209 to move and finally pushing the drug into the spray nozzle 208 for spraying.

[0031] Reference Figure 2 and Figure 3 The snap-fit ​​mechanism 3 includes a fixing frame 301. The bottom of the fixing frame 301 is fixedly connected to the top of the drug delivery tube 203. The inner cavity of the fixing frame 301 is threaded with a screw 302. One end of the screw 302 is movably connected to the inner cavity of the push rod 205. By setting the fixing frame 301 and the screw 302 in cooperation, when the bottom of the screw 302 is snapped into the inner cavity of the push rod 205, the position of the push rod 205 can be fixed, thereby fixing the position of the square piston 209.

[0032] Reference Figure 6 A rotating handle 303 is fixedly connected to the top of the screw 302. Several protrusions are fixedly connected to the surface of the rotating handle 303. By setting the rotating handle 303, the protrusions on the surface of the rotating handle 303 prevent the operator from slipping when rotating the rotating handle 303.

[0033] Working principle: First, pull the push block 206, causing it to move the square piston 209 on the push rod 205. Simultaneously, the second spring 204 expands to its maximum extent. Next, turn the rotary handle 303. Through the threaded connection between the rotary handle 303 and the screw 302, the screw 302 moves downwards until it engages with the inner cavity of the push rod 205. At this point, the operator can inject medication into the inlet 202 into the delivery tube 203. Then, tighten the cover plate 201 onto the surface of the inlet 202. When the injection is complete, turn the rotary handle 303 to disengage it from the push rod 205. The elasticity of the second spring 204 then moves the push block 206, which in turn moves the push rod 205, which in turn moves the square piston 209 on the push rod 205. The plug 209 moves within the cavity of the infusion tube 203, thereby pushing the medication within the infusion tube 203 into the cavity of the storage box 207, and finally spraying it out through the spray nozzle 208. While the medication is being sprayed through the spray nozzle 208, the installation box 101 is indirectly moved by holding the infusion tube 203, and the elastic scraper 105 is indirectly moved by the installation box 101. When the elastic scraper 105 comes into contact with the uneven area of ​​the patient's skin, the elastic scraper 105 will first drive the fixed column 106 and the rotating block 107 to rotate on the surface of the support shaft 108, and then drive the fixed block 104, the connecting rod 102 and the limiting block 109 to move. Finally, the elastic action of the first spring 110 keeps each elastic scraper 105 in close contact with the patient's skin and applies the medication sprayed out by the spray nozzle 208.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A topical dermatological applicator, comprising an adaptive application mechanism (1), characterized in that: The adaptive application mechanism (1) is provided with a drug pushing mechanism (2) on one side, and a snap-fit ​​mechanism (3) is provided on the top of the drug pushing mechanism (2); The adaptive coating mechanism (1) includes a mounting box (101), and a fixed chamber (103) is fixedly connected to the inner cavity of the mounting box (101). The number of fixed chambers (103) is several. A connecting rod (102) is movably connected to the inner cavity of the fixed chamber (103). A fixed block (104) is fixedly connected to the bottom of the connecting rod (102). A support shaft (108) is fixedly connected to the inner cavity of the fixed block (104). A rotating block (107) is movably connected to the surface of the support shaft (108). A fixed column (106) is fixedly connected to the bottom of the rotating block (107). An elastic scraper (105) is fixedly connected to the bottom of the fixed column (106).

2. The dermatological topical medication applicator according to claim 1, characterized in that: A limiting block (109) is fixedly connected to the top of the connecting rod (102). The surface of the limiting block (109) is movably connected to the inner cavity of the fixed chamber (103). A first spring (110) is movably connected to the inner cavity of the fixed chamber (103). One end of the first spring (110) is fixedly connected to the top of the inner cavity of the fixed chamber (103), and the other end of the first spring (110) is fixedly connected to the top of the limiting block (109).

3. The dermatological topical medication applicator according to claim 1, characterized in that: The drug delivery mechanism (2) includes a drug delivery tube (203), one end of which is fixedly connected to a drug storage box (207). One side of the drug storage box (207) is fixedly connected to one side of the mounting box (101). The inner cavity of the drug delivery tube (203) is connected to the inner cavity of the drug storage box (207). The bottom of the drug storage box (207) is fixedly connected to a spray nozzle (208). A square piston (209) is movably connected to the inner cavity of the drug delivery tube (203). One end of the square piston (209) is fixedly connected to a push rod (205). The surface of the push rod (205) is movably connected to the inner cavity of the drug delivery tube (203). One end of the push rod (205) is fixedly connected to a push block (206).

4. A topical dermatological medication applicator according to claim 3, characterized in that: The top of the drug delivery tube (203) is fixedly connected to a drug inlet (202), the inner cavity of the drug inlet (202) is connected to the inner cavity of the drug delivery tube (203), and a cover plate (201) is threadedly connected to the surface of the drug inlet (202).

5. A dermatological topical medication applicator according to claim 3, characterized in that: The surface of the push rod (205) is fitted with a second spring (204), one end of the second spring (204) is fixedly connected to the surface of the push block (206), and the other end of the second spring (204) is fixedly connected to the surface of the drug delivery tube (203).

6. A dermatological topical medication applicator according to claim 1, characterized in that: The snap-fit ​​mechanism (3) includes a fixing frame (301), the bottom of which is fixedly connected to the top of the drug delivery tube (203), and a screw (302) is threadedly connected to the inner cavity of the fixing frame (301), one end of which is movably connected to the inner cavity of the push rod (205).

7. A dermatological topical medication applicator according to claim 6, characterized in that: A rotating handle (303) is fixedly connected to the top of the screw (302), and several protrusions are fixedly connected to the surface of the rotating handle (303).