A demonstration aid for ophthalmic preparations

Abstract

The utility model discloses a demonstration teaching aid for ophthalmic preparation, including shell and replacement core, shell has the inner chamber, and replacement core detachably sets up in the inner chamber, and shell is the elastic shell, shell bottom is provided with the first bottom cover that can open and close, and shell top sets up the first medicine outlet, and the outer wall of shell is provided with length mark, and replacement core top sets up the second medicine outlet of coaxial setting with the first medicine outlet. Such setting, the elastic shell can adapt the appearance of replacement core, and make replacement core synchronous deformation when extruding shell, thereby simulating the extrusion process of real ophthalmic preparation, and make the simulation material in replacement core flow from the top medicine outlet, through the length mark of shell setting on the shell, as the visual reference of quantization length when ophthalmic gel or eye ointment extrusion, avoid the subjective feeling extrusion and lead to the overdosage or the insufficient administration, through the first bottom cover of shell bottom setting, replacement core's replacement and the maintenance to shell are convenient.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a demonstration teaching aid for ophthalmic preparations. Background Technology

[0002] In ophthalmic clinical medication, the dosage forms of ophthalmic preparations are showing a diversified development trend. In addition to traditional solution-type eye drops, the use of suspension eye drops, ophthalmic gels, and ophthalmic ointments is also becoming increasingly widespread. However, due to the differences in physicochemical properties, different dosage forms require different administration methods and operational points: Suspension eye drops contain insoluble drug particles, which are prone to sedimentation after standing. They must be thoroughly shaken before use to ensure accurate dosage, otherwise the efficacy will be seriously affected; ophthalmic gels and ointments require strict control of the single dose. Although clinical recommendations suggest squeezing out a strip of about 1-1.5 cm, patients often squeeze based on subjective feeling, which can easily lead to overdose or underdose; in addition, the significant differences in viscosity, transparency, and sedimentation characteristics of different dosage forms directly affect the administration operation and ocular retention time, and patients generally lack basic awareness of this.

[0003] Existing methods of medication education have significant limitations. Drug instructions are abstract and difficult for non-medical personnel to understand, and verbal guidance from medical personnel is insufficient to vividly demonstrate the characteristics of dosage forms. Traditional teaching aids are limited in function and cannot meet the needs of teaching multiple dosage forms. In particular, there is a lack of professional teaching tools that can intuitively demonstrate the characteristics of dosage forms and provide quantitative operational standards, resulting in significant uncertainty among patients regarding medication use. Utility Model Content

[0004] Therefore, this invention aims to solve the problem that the dosage of ophthalmic preparations cannot be quantified in the prior art, making it difficult for non-medical personnel to understand the medication guidance methods, and thus provides a demonstration teaching aid for ophthalmic preparations.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows: A demonstration tool for ophthalmic preparations includes a housing and a replacement core. The housing has an inner cavity, and the replacement core is detachably disposed in the inner cavity. The housing is an elastic housing. The bottom of the housing is provided with a first bottom cover that can be opened and closed. The top of the housing is provided with a first dispensing port. The outer wall of the housing is provided with a length mark. The top of the replacement core is provided with a second dispensing port that is coaxially disposed with the first dispensing port.

[0006] Furthermore, the replacement core bottle is a transparent bottle, and a transparent viewing window is provided on the side wall of the outer shell, with one end of the transparent viewing window extending to the bottom of the outer shell.

[0007] Furthermore, the transparent viewing window is provided with a scratch-resistant coating.

[0008] Furthermore, a timer is provided on the outer casing, and the timer is equipped with a start button and a stop button. When the start button is turned on, the timer can count down for two minutes.

[0009] Furthermore, the housing is also provided with a buzzer electrically connected to the timer and a stop button electrically connected to the buzzer.

[0010] Furthermore, the housing is provided with a display screen electrically connected to the timer.

[0011] Furthermore, a magnetic structure is provided at the bottom of the outer casing, and an iron sheet is provided inside the first bottom cover. The first bottom cover is magnetically connected to the bottom of the outer casing through the iron sheet.

[0012] Furthermore, the first bottom cover is a silicone plug, which is interference-fitted to the bottom of the outer casing.

[0013] Furthermore, the bottom of the replacement core is provided with an openable and closable second bottom cover.

[0014] Furthermore, the second bottom cover is threaded to the bottom of the replacement core.

[0015] The technical solution of this utility model has the following advantages: 1. The demonstration teaching aid for ophthalmic preparations provided by this utility model has an elastic outer shell that can adapt to the shape of the replacement core. At the same time, when the outer shell is squeezed, the replacement core deforms synchronously, thereby simulating the extrusion process of the real drug and allowing the simulated substance in the replacement core to flow out from the top dispensing port. By setting a length mark on the outer shell, it can be used as a visual reference for quantifying the length when squeezing gels or ointments, avoiding over- or under-dosing due to subjective squeezing. By setting a first bottom cover at the bottom of the outer shell, it is convenient to replace the replacement core and maintain the outer shell.

[0016] 2. The demonstration and teaching aid for ophthalmic preparations provided by this utility model has a transparent bottle body for the replacement cartridges, with a transparent viewing window provided on the side wall of the outer shell, one end of which extends to the bottom of the outer shell. This design allows the user to clearly observe the static and dynamic states of different dosage form replacement cartridges.

[0017] 3. The demonstration tool for ophthalmic preparations provided by this utility model has a scratch-resistant coating on its transparent viewing window. This design prevents scratches from forming on the transparent viewing window during routine cleaning of the demonstration machine and maintains the clarity of the transparent viewing window for long-term observation.

[0018] 4. The demonstration tool for ophthalmic preparations provided by this utility model has a timer on its outer shell, with a start button and a stop button. Activating the start button starts the countdown for two minutes. With this setup, when using the demonstration tool for actual use, after instilling the medication into the patient's eye, the start button initiates a two-minute countdown, while simultaneously pressing the inner canthus of the eye for two minutes to prevent the medication from being absorbed through the nasolacrimal duct into the whole body and causing adverse reactions.

[0019] 5. The demonstration teaching aid for ophthalmic preparations provided by this utility model also has a buzzer electrically connected to a timer and a stop button electrically connected to the buzzer on its outer shell. This configuration allows the buzzer to sound after a two-minute timer has elapsed to remind the user that the corresponding time has been reached, and the buzzer can be stopped by pressing the stop button electrically connected to the buzzer.

[0020] 6. The demonstration teaching aid for ophthalmic preparations provided by this utility model has a display screen electrically connected to a timer on its outer shell. This configuration allows for a more intuitive display of the remaining countdown time.

[0021] 7. The demonstration tool for ophthalmic preparations provided by this utility model has a second, closable bottom cap at the bottom of the replacement core. This design facilitates the injection of liquids in different states into the replacement core bottle to simulate solution-type eye drops, suspension-type eye drops, ophthalmic gels, ophthalmic ointments, etc., thereby making it easy to simulate the extrusion shape and state of different types of ophthalmic preparations according to the different states of liquids. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 The front view of the demonstration teaching aid for ophthalmic preparations provided by this utility model; Figure 2 A side view of the demonstration teaching aid for ophthalmic preparations provided by this utility model; Figure 3 Rear view of the demonstration teaching aid for ophthalmic preparations provided by this utility model; Explanation of reference numerals in the attached drawings: 1. Outer casing; 2. First bottom cover; 3. Length indicator; 4. Transparent viewing window; 5. Timer; 6. Start button; 7. Stop button; 8. Buzzer; 9. Stop button. Detailed Implementation

[0024] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0028] like Figures 1-3 The demonstration tool shown includes a shell 1 and a replacement core. The shell 1 has an inner cavity, and the replacement core is detachably disposed in the inner cavity. The shell 1 is an elastic shell 1. The bottom of the shell 1 is provided with a first bottom cover 2 that can be opened and closed, the top of the shell 1 is provided with a first drug outlet, and the outer wall of the shell 1 is provided with a length mark 3. The top of the replacement core is provided with a second drug outlet that is coaxially disposed with the first drug outlet.

[0029] This demonstration tool for ophthalmic preparations features an elastic outer shell 1 that adapts to the shape of the replacement core. Simultaneously, the replacement core deforms when the outer shell 1 is squeezed, simulating the extrusion process of a real drug and allowing the simulated substance inside the replacement core to flow out from the top dispensing port. A length marker 3 on the outer shell 1 serves as a visual reference for quantifying the length when extruding gels or ointments, preventing over- or under-administration due to subjective squeezing. A first bottom cover 2 at the bottom of the outer shell 1 facilitates replacement of the replacement core and maintenance of the outer shell 1.

[0030] In this embodiment, the first bottom cover 2 is threaded to the bottom of the outer shell 1 core.

[0031] In an alternative embodiment, a magnetic structure is provided at the bottom of the outer casing 1, and an iron sheet is provided inside the first bottom cover 2. The first bottom cover 2 is magnetically connected to the bottom of the outer casing 1 through the iron sheet.

[0032] In an alternative embodiment, the first bottom cover 2 is a silicone plug, which is interference-fitted to the bottom of the outer casing 1.

[0033] In an alternative embodiment, the edge of the first bottom cover 2 is provided with an elastic buckle, and the bottom of the outer shell 1 is provided with a corresponding and compatible slot. When the first bottom cover 2 is pressed to close, a "click" sound is heard, indicating that it is closed. When pressed again, the first bottom cover 2 can be opened by utilizing the elastic force of the buckle deformation. This elastic buckle design can be operated with only one hand, with fast opening and closing speed, smooth experience, and convenient operation.

[0034] In an alternative embodiment, the first bottom cover 2 is rotatably connected to the bottom of the outer shell 1 via a pivot. The bottom of the outer shell 1 is also provided with a groove to facilitate the user to pry it open with their fingernail. After the first bottom cover 2 is opened, it is suspended to the side via the pivot to prevent the first cover from being completely detached and lost.

[0035] In this embodiment, the replacement cartridge bottle is a transparent bottle, and a transparent viewing window 4 is provided on the side wall of the outer shell 1, with one end of the transparent viewing window 4 extending to the bottom of the outer shell 1. This design allows the user to clearly observe the static and dynamic states of different dosage form replacement cartridges.

[0036] In this embodiment, the transparent viewing window 4 is provided with a scratch-resistant coating. This design prevents scratches from forming on the transparent viewing window 4 during routine cleaning of the demonstration machine and maintains the clarity of the transparent viewing window 4 for long-term observation.

[0037] In this embodiment, a timer 5 is provided on the outer casing 1. The timer 5 has a start button 6 and a stop button 7. Activating the start button 6 starts the countdown for two minutes. With this setup, when using the demonstration tool for actual use, after instilling the medication into the patient's eye, activating the start button 6 starts the two-minute countdown. Simultaneously, the inner canthus of the eye is pressed for two minutes to prevent the medication from being absorbed into the system through the nasolacrimal duct and causing adverse reactions. Specifically, the outer casing 1 has a display screen electrically connected to the timer 5. This setup allows for a more intuitive display of the remaining countdown time.

[0038] In this embodiment, the outer casing 1 is also provided with a buzzer 8 electrically connected to the timer 5 and a stop button 9 electrically connected to the buzzer 8. With this configuration, the buzzer 8 can sound to remind the user that the corresponding time has been reached after the two-minute timer has ended, and the buzzer 8 can be stopped by pressing the stop button 9 electrically connected to the buzzer 8.

[0039] In this embodiment, the bottom of the replacement core is provided with an openable second bottom cap. This design facilitates the injection of liquids in different states into the replacement core bottle as needed to simulate solution-type eye drops, suspension-type eye drops, ophthalmic gels, ophthalmic ointments, etc., thereby facilitating the simulation of the extrusion shape and state of different types of ophthalmic preparations based on the different states of the liquid. Specifically, the second bottom cap is threadedly connected to the bottom of the replacement core. This design allows the simulated material inside the replacement core to be replaced or refilled by opening the second bottom cap, thereby achieving reusability of the teaching aid and effectively reducing the cost of using the teaching aid.

[0040] In this embodiment, the replacement core for solution-type eye drops can be filled with a clear, transparent, colorless liquid (such as purified water) to simulate the physical state of solution-type eye drops; the replacement core for suspension-type eye drops can be filled with a suspension containing visible insoluble particles, which can be observed to settle after standing and can be redispersed after shaking, to simulate the characteristics of suspensions; the replacement core for ophthalmic gel can be filled with a transparent, semi-solid gel-like substance (such as aqueous gel) to simulate the viscosity and flowability of ophthalmic gels; and the replacement core for ophthalmic ointment can be filled with a milky white or opaque ointment-like substance (such as petrolatum) to simulate the viscous appearance and extrusion state of ophthalmic ointments.

[0041] In this embodiment, the outer surface of the replacement core has a dedicated QR code marking area for pasting or printing the QR code of the corresponding dosage form. Users can scan the QR code with their mobile devices to be redirected to watch a correct operation demonstration video corresponding to the dosage form simulated by the replacement core, thus realizing the integration of offline teaching aids and online multimedia guidance.

[0042] In summary, this demonstration tool for ophthalmic preparations, by setting an elastic outer shell 1, can adapt to the shape of the replacement core, and at the same time, the replacement core can deform synchronously when the outer shell 1 is squeezed, thereby simulating the extrusion process of the real drug and allowing the simulated substance in the replacement core to flow out from the top dispensing port; by setting a length mark 3 on the outer shell 1, it can be used as a visual reference for quantifying the length when extruding gels or ointments, avoiding over- or under-administration due to subjective squeezing; by setting a first bottom cover 2 at the bottom of the outer shell 1, it is convenient to replace the replacement core and maintain the outer shell 1.

[0043] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A demonstration tool for ophthalmic preparations, characterized in that, The device includes an outer shell (1) and a replacement core. The outer shell (1) has an inner cavity, and the replacement core is detachably disposed in the inner cavity. The outer shell (1) is an elastic outer shell (1). The bottom of the outer shell (1) is provided with a first bottom cover (2) that can be opened and closed. The top of the outer shell (1) is provided with a first medicine outlet. The outer wall of the outer shell (1) is provided with a length mark (3). The top of the replacement core is provided with a second medicine outlet that is coaxially disposed with the first medicine outlet.

2. The demonstration teaching aid for ophthalmic preparations according to claim 1, characterized in that, The replacement core bottle is a transparent bottle, and a transparent viewing window (4) is provided on the side wall of the outer shell (1), with one end of the transparent viewing window (4) extending to the bottom of the outer shell (1).

3. The demonstration teaching aid for ophthalmic preparations according to claim 2, characterized in that, The transparent viewing window (4) is provided with a scratch-resistant coating.

4. The demonstration teaching aid for ophthalmic preparations according to claim 1, characterized in that, The outer casing (1) is equipped with a timer (5), which has a start button (6) and a stop button (7). When the start button (6) is turned on, the timer can count down for two minutes.

5. The demonstration teaching aid for ophthalmic preparations according to claim 4, characterized in that, The outer casing (1) is also provided with a buzzer (8) electrically connected to the timer (5) and a stop button (9) electrically connected to the buzzer (8).

6. The demonstration teaching aid for ophthalmic preparations according to claim 4, characterized in that, The housing (1) is provided with a display screen that is electrically connected to the timer (5).

7. The demonstration teaching aid for ophthalmic preparations according to claim 1, characterized in that, The bottom of the outer shell (1) is provided with a magnetic structure, and an iron sheet is provided inside the first bottom cover (2). The first bottom cover (2) is magnetically connected to the bottom of the outer shell (1) through the iron sheet.

8. The demonstration teaching aid for ophthalmic preparations according to claim 1, characterized in that, The first bottom cover (2) is a silicone plug, which is interference-fitted to the bottom of the outer shell (1).

9. The demonstration teaching aid for ophthalmic preparations according to claim 1, characterized in that, The replacement core is provided with an openable and closable second bottom cover.

10. The demonstration teaching aid for ophthalmic preparations according to claim 9, characterized in that, The second bottom cover is threaded to the bottom of the replacement core.

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