Plaster applicator

Abstract

The utility model discloses a plaster applicator, which relates to the technical field of medical instruments and comprises a medicine cylinder component, a knob propelling component and an applying nozzle component which are integrally connected, the knob propelling component is screwed at the upper end of a medicine cylinder of the medicine cylinder component, and the applying nozzle component is buckled at the lower end of the medicine cylinder of the medicine cylinder component. A rotary knob thread sleeve connected with the propelling sliding handle is screwed to the outer side of the propelling thread, and a propelling rubber plug extending into the medicament barrel is arranged at the bottom end of an arm rod of the arm strength push rod. According to the design, the medicine cylinder assembly serves as an ointment storage container, then under threaded stepping pushing of the knob pushing assembly, the pushing rubber plug is pushed into the medicine cylinder assembly, ointment is quantitatively extruded and pushed out through the smearing nozzle assembly, then continuous knob pushing of the knob pushing assembly is utilized, and the ointment is smeared through the smearing nozzle assembly. The unguent in the unguent cylinder assembly is continuously pushed and extruded out, continuous smearing work is executed, operation is easy and convenient, and meanwhile unguent smearing is more quantitative and accurate.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, and in particular to a plaster applicator. Background Technology

[0002] Patients with endocrine disorders may experience symptoms such as rough skin, pigmentation, irritability, rapid mood swings, and sweating. External skin symptoms, in particular, require timely application of ointments. To maintain sterility and facilitate rapid application, endocrinology staff typically use applicators to sterilely apply medication to the affected skin. For example, a plaster storage and application bottle for treating skin diseases (publication number CN218248117U) is disclosed on the Chinese Patent Network. This type of plaster application device utilizes an adjustable component with an elastic handle to drive a piston rod. This piston rod movement causes the piston to slide, compressing the plaster inside the bottle. The plaster is then evenly delivered to the affected skin area via the application component, thus achieving plaster application.

[0003] However, the aforementioned patented and existing plaster application devices in the market still have some shortcomings: the existing method of using an elastic propulsion component to squeeze out the plaster has poor control stability of the elastic propulsion, the amount extruded per batch cannot be effectively controlled, and each extrusion requires repeated squeezing from the original point, further increasing the difficulty of controlling the amount of plaster extruded. Therefore, those skilled in the art have provided a plaster applicator to solve the problems mentioned in the background art. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a plaster applicator, which solves the problem of inconvenient control over the amount of plaster squeezed out in existing plaster applicators mentioned in the background art.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a plaster applicator, comprising an integrally connected medicine cartridge assembly, a knob push assembly, and an applicator nozzle assembly, wherein the knob push assembly is screwed onto the upper end of the medicine cartridge of the medicine cartridge assembly, and the applicator nozzle assembly is snapped onto the lower end of the medicine cartridge of the medicine cartridge assembly;

[0006] The cartridge assembly includes a medicine cartridge;

[0007] The knob push assembly includes a push rod, which is a hollow rod structure and has a push thread along its arm direction. A push handle is slidably connected inside the hollow cavity of the push rod. A knob sleeve connected to the push handle is screwed onto the outside of the push thread. An arm force push rod is provided at the bottom of the push handle, and a push rubber plug extending into the inside of the medicine cylinder is provided at the bottom end of the arm force push rod.

[0008] The applicator assembly includes an applicator nozzle.

[0009] As a further technical solution of this utility model: the upper end of the medicine cylinder is provided with an external threaded sleeve, and the bottom end of the arm of the push rod is provided with an internal threaded sleeve that is screwed and adapted to the external threaded sleeve.

[0010] As a further technical solution of this utility model: the push rod is provided with multiple sets of guide grooves along the circumference of its arm, and the guide grooves are slidably connected to the push handle.

[0011] As a further technical solution of this utility model: the upper end of the push handle of the push handle is provided with a rotating groove in an inward form, and the lower part of the handle of the knob sleeve is provided with a rotating retaining ring in an outward form, and the push handle and the knob sleeve are rotatably connected through the rotating groove and the rotating retaining ring.

[0012] As a further technical solution of this utility model: the bottom end of the medicine cylinder is provided with two sets of positioning slots facing each other. The positioning slots include a counter-pressure groove body opened along the bottom surface of the medicine cylinder and a snap-fit ​​groove body extending along the counter-pressure groove body into the inside of the medicine cylinder.

[0013] The upper end of the applicator nozzle is provided with two sets of positioning buckles that are adapted to the positioning slots and face each other.

[0014] As a further technical solution of this utility model: the positioning buckle is an arc-shaped crank structure, and the positioning groove is an arc-shaped groove structure.

[0015] This utility model provides a plaster applicator, which has the following advantages compared with the prior art:

[0016] 1. The plaster applicator designed in this paper uses a medicine cartridge assembly as a medicine storage container. Then, under the threaded stepping of the knob push assembly, the push stopper is pushed into the medicine cartridge assembly to quantitatively squeeze the medicine. The medicine is then quantitatively squeezed out through the application nozzle assembly, so that medical staff can apply the medicine quantitatively and evenly to the patient's skin. Then, by continuously rotating the knob push assembly, the medicine in the medicine cartridge assembly is continuously pushed out, performing continuous application. The operation is simple and convenient, and the medicine application is more quantitative and precise.

[0017] 2. The plaster applicator designed in this way is based on the rotating snap-fit ​​fixing of the medicine tube assembly and the applicator nozzle assembly, which has the characteristics of convenient disassembly and replacement. It can easily replace and adapt the applicator nozzle assembly to adapt to the patient's skin application work in different usage situations, and has better flexibility and usability. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a plaster applicator;

[0019] Figure 2 A partial cross-sectional view of a plaster applicator;

[0020] Figure 3 This is a schematic diagram of the unfolded application of a plaster.

[0021] Figure 4 A schematic diagram of the first unfolded knob push assembly in a plaster applicator;

[0022] Figure 5 This is a second unfolded schematic diagram of a knob-propelled assembly in a plaster applicator;

[0023] Figure 6 A schematic diagram of the first structure for assembling and disassembling the medicine cartridge assembly and the application nozzle assembly in a plaster applicator;

[0024] Figure 7 This is a second structural diagram showing the disassembly and assembly of the medicine tube assembly and the application nozzle assembly in a plaster applicator.

[0025] In the diagram: 1. Cartridge assembly; 11. Drug cartridge; 12. External threaded sleeve; 13. Positioning slot; 131. Pressing groove; 132. Snap-on groove; 2. Knob push assembly; 21. Push rod; 22. Push thread; 23. Guide groove; 24. Internal threaded sleeve; 25. Knob sleeve; 26. Push handle; 27. Rotary slot; 28. Arm force push rod; 29. ​​Push rubber plug; 210. Rotary retaining ring; 3. Application nozzle assembly; 31. Application nozzle; 32. Positioning snap-on. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-7This utility model provides a technical solution for a plaster applicator: a plaster applicator includes an integrally connected medicine cartridge assembly 1, a knob push assembly 2, and an applicator nozzle assembly 3. The knob push assembly 2 is screwed onto the upper end of the medicine cartridge of the medicine cartridge assembly 1, and the applicator nozzle assembly 3 is snapped onto the lower end of the medicine cartridge of the medicine cartridge assembly 1. The medicine cartridge assembly 1 includes a medicine cartridge 11, and the applicator nozzle assembly 3 includes an applicator nozzle 31. The bottom end of the medicine cartridge 11 has two sets of positioning slots 13 facing each other. The positioning slots 13 include a pressing groove 131 along the bottom surface of the medicine cartridge 11 and a snapping groove 132 extending from the pressing groove 131 into the interior of the medicine cartridge 11. The upper end of the applicator nozzle 31 is... Two sets of positioning buckles 32 are provided in an opposing configuration to match the positioning slot 13. The positioning buckles 32 are arc-shaped crank structures, and the positioning slot 13 is an arc-shaped groove structure. By utilizing the matching of the positioning buckles 32 and the positioning slot 13, the positioning slot 13 is first aligned with the pressing groove 131 of the positioning slot 13, so that it is aligned with the buckle groove 132. Then, by rotating, the application nozzle assembly 3 is rotated to rotate the positioning slot 13 into the buckle groove 132, forming a snap-fit ​​state, and fixing the application nozzle assembly 3 on the medicine cartridge assembly 1 as the outlet part of the ointment. When disassembling and replacing it later, the disassembly and replacement work can be completed simply by turning the knob in the opposite direction.

[0028] The knob push assembly 2 includes a push rod 21. The upper end of the medicine cylinder 11 is provided with an external threaded sleeve 12. The lower end of the arm of the push rod 21 is provided with an internal threaded sleeve 24 that is screwed and adapted to the external threaded sleeve 12. When the ointment is injected into the medicine cylinder 11, the knob push assembly 2 is screwed and fixed to the medicine cylinder assembly 1 by the screwing and adaptation of the external threaded sleeve 12 and the internal threaded sleeve 24. The push action of the knob push assembly 2 is used to push out the ointment in the medicine cylinder assembly 1 in a step-by-step manner.

[0029] The push rod 21 is a hollow rod structure, and a push thread 22 is provided along its arm direction. A push handle 26 is slidably connected inside the hollow cavity of the push rod 21. A knob sleeve 25 connected to the push handle 26 is screwed onto the outside of the push thread 22. An arm force push rod 28 is provided at the bottom of the push handle 26, and a push rubber plug 29 extending into the medicine cartridge 11 is provided at the bottom end of the arm of the arm force push rod 28. Multiple [unclear] openings are provided along the circumference of the arm of the push rod 21. The guide slide 23 is connected to the push slide 26 in a sliding manner. By utilizing the guiding effect of the push slide 26 and the guide slide 23, when the knob sleeve 25 is pushed along the push thread 22, the knob thrust is converted into lifting thrust, which pushes the push slide 26 to slide along the guide slide 23, pushing the combination of the arm force push rod 28 and the push rubber stopper 29 into the medicine cartridge assembly 1, performing step-by-step quantitative extrusion of the ointment, and extruding the ointment in a quantitative manner.

[0030] The upper end of the push handle of the push handle 26 is provided with a concave rotating groove 27, and the lower part of the handle of the knob sleeve 25 is provided with a convex rotating retainer 210. The push handle 26 and the knob sleeve 25 are rotatably connected through the rotating groove 27 and the rotating retainer 210. By using the rotational connection between the rotating retainer 210 and the rotating groove 27, the knob sleeve 25 and the push handle 26 are kept in a rotatably connected state, so as to convert the knob push force of the knob sleeve 25 into a vertical push force, which pushes the push handle 26 to advance along the push rod 21. As a driving source, the push plug 29 below the push arm force push rod 28 is inserted into the cartridge assembly 1 to squeeze and push the ointment.

[0031] The working principle of this utility model is as follows: When applying ointment to the patient's skin using an ointment applicator, a suitable applicator nozzle assembly 3 can be selected according to the patient's skin condition. After selection, the positioning slot 13 on the applicator nozzle assembly 3 is aligned with the pressing groove 131 of the cartridge assembly 1, and the positioning slot 13 and the snap-fit ​​groove 132 are aligned with each other. Then, by rotating the applicator nozzle assembly 3 with a knob, the positioning slot 13 is rotated into the snap-fit ​​groove 132 to form a snap-fit ​​state, thus fixing the applicator nozzle assembly 3 on the cartridge assembly 1 as the outlet part of the ointment.

[0032] The ointment to be applied is then injected into the medicine cartridge assembly 1. After the ointment is injected, the knob push assembly 2 is screwed and fixed onto the medicine cartridge assembly 1 by using the screwing fit between the external thread sleeve 12 and the internal thread sleeve 24. The ointment in the medicine cartridge assembly 1 is then pushed out step by step by the pushing action of the knob push assembly 2.

[0033] Furthermore, during the extrusion of the ointment, by turning the knob screw sleeve 25, the ointment is spirally advanced along the push thread 22, converting the knob thrust into a lifting thrust, which pushes the push handle 26 to slide along the guide groove 23, and pushes the combination of the arm force push rod 28 and the push rubber stopper 29 into the cartridge assembly 1 at a fixed point. Then, by using the step-by-step push of the push rubber stopper 29, the ointment is pushed through, and the ointment is extruded in a step-by-step quantitative manner. The ointment is then extruded through the application nozzle assembly 3 in a quantitative manner, and the ointment is applied evenly and quantitatively to the patient's skin. Then, by continuously turning the knob push assembly 2, the ointment in the cartridge assembly 1 is continuously pushed out, and a continuous application is performed.

[0034] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.

Claims

1. A plaster applicator, characterized in that, It includes an integrally connected cartridge assembly (1), a knob push assembly (2), and an application nozzle assembly (3). The knob push assembly (2) is screwed onto the upper end of the cartridge of the cartridge assembly (1), and the application nozzle assembly (3) is snapped onto the lower end of the cartridge of the cartridge assembly (1). The cartridge assembly (1) includes a cartridge (11); The knob push assembly (2) includes a push rod (21), which is a hollow rod structure, and the push rod (21) is provided with a push thread (22) along its arm direction. The push rod (21) is slidably connected to a push handle (26) inside the hollow cavity. A knob sleeve (25) connected to the push handle (26) is screwed onto the outside of the push thread (22). An arm force push rod (28) is provided at the bottom of the push handle (26), and a push rubber plug (29) extending into the medicine cylinder (11) is provided at the bottom end of the arm of the arm force push rod (28). The applicator assembly (3) includes an applicator (31).

2. The plaster applicator according to claim 1, characterized in that, The upper end of the medicine cylinder (11) is provided with an external threaded sleeve (12), and the lower end of the arm of the push rod (21) is provided with an internal threaded sleeve (24) that is screwed and adapted to the external threaded sleeve (12).

3. The plaster applicator according to claim 1, characterized in that, The push rod (21) has multiple sets of guide grooves (23) along its arm circumference, and the guide grooves (23) are slidably connected to the push handle (26).

4. The plaster applicator according to claim 1, characterized in that, The upper end of the push handle of the push handle (26) is provided with a rotating groove (27) in an inward form, and the lower part of the handle of the knob sleeve (25) is provided with a rotating retaining ring (210) in an outward form. The push handle (26) and the knob sleeve (25) are rotatably connected through the rotating groove (27) and the rotating retaining ring (210).

5. A plaster applicator according to claim 1, characterized in that, The bottom end of the medicine cylinder (11) is provided with two sets of positioning slots (13) facing each other. The positioning slots (13) include a counter-pressure groove (131) opened along the bottom surface of the medicine cylinder (11) and a snap-fit ​​groove (132) extending along the counter-pressure groove (131) into the inside of the medicine cylinder (11). The upper end of the applicator (31) is provided with two sets of positioning buckles (32) that are adapted to the positioning slot (13).

6. A plaster applicator according to claim 5, characterized in that, The positioning buckle (32) is an arc-shaped crank structure, and the positioning slot (13) is an arc-shaped groove structure.

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