Metered medicine dispensing apparatus
By designing a quantitative drug dispensing device with sliding and elastic components, the problem of high cost of existing quantitative drug dispensing devices is solved, realizing low-cost and accurate quantitative drug dispensing. The structure is simple and reduces manufacturing costs.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- XINJIANG HUACHUN BIOLOGICAL PHARMACEUTICAL CO LTD
- Filing Date
- 2025-03-18
- Publication Date
- 2026-06-04
AI Technical Summary
Existing quantitative drug dispensing devices are costly and make it difficult to achieve low-cost and accurate quantitative drug dispensing.
Design a quantitative drug dispensing device that includes a dispensing tube, a sliding component, and an elastic component. The drug weight is quantified by the sliding engagement of the sliding component within the receiving cavity and the elastic deformation of the elastic component. The drug weight is read using a weight label, thus avoiding the need for electronic weighing devices.
It enables low-cost and accurate quantitative drug dispensing, has a simple structure, reduces manufacturing costs, and does not affect ease of use.
Smart Images
Figure CN2025083205_04062026_PF_FP_ABST
Abstract
Description
Quantitative drug dispensing device
[0001] Cross-references
[0002] This application incorporates Chinese Patent Application No. 202422940237X, filed on November 29, 2024, entitled “Quantitative Dispensing Device”, which is incorporated herein by reference in its entirety. Technical Field
[0003] This application relates to the field of quantitative drug dispensing technology, and in particular to a quantitative drug dispensing device. Background Technology
[0004] Typically, when children take some granular or powdered medications, the dosage needs to be matched to their weight. However, the form of these medications makes it difficult to measure the amount taken, easily leading to overdosing or underdosing. Therefore, some dispensing devices have appeared on the market. For example, these devices equip a dispensing spoon with a miniature electronic weighing device. When the spoon is used to scoop out the medication, the miniature electronic weighing device weighs the medication and displays the weight on a screen. However, the electronic components in these dispensing devices are usually quite expensive, resulting in a higher overall cost. Summary of the Invention
[0005] According to various embodiments of this application, a quantitative drug dispensing device is provided.
[0006] Details of one or more embodiments of this application are set forth in the following drawings and description. Other features, objects, and advantages of this application will become apparent from the specification, drawings, and claims.
[0007] This application provides a quantitative drug dispensing device, the quantitative drug dispensing device comprising:
[0008] A medicine dispensing tube has a receiving cavity, and the tube wall of the medicine dispensing tube is provided with a plurality of weight marks arranged along a first direction, wherein the first direction is the length direction of the medicine dispensing tube;
[0009] A sliding member is located within the receiving cavity and slides in cooperation with the receiving cavity along the first direction. The receiving cavity includes a first space and a second space located on both sides of the sliding member along the first direction. The end of the first space opposite to the sliding member has a medicine dispensing port.
[0010] An elastic element is located in the second space, and one end of the elastic element is connected to the sliding element along the first direction, and the other end is connected to the medicine dispensing tube.
[0011] In some embodiments, the outer wall of the slider has a recessed space facing away from the wall of the dispensing tube.
[0012] In some embodiments, the sliding member includes a first plate, a second plate, and a connecting portion. The first plate and the second plate are arranged at intervals along the first direction and connected by the connecting portion. The hollow space is formed between the first plate, the second plate, the connecting portion, and the wall of the dispensing tube.
[0013] In some embodiments, the cross-section of the receiving cavity is circular, and the hollow space is annular.
[0014] In some embodiments, the connecting portion includes a connecting post located at the center of the receiving cavity. One end of the connecting post is connected to the first plate along the first direction, and the other end is connected to the second plate. The hollow space is formed between the first plate, the second plate, the connecting post, and the wall of the dispensing tube.
[0015] In some embodiments, the connecting portion includes a plurality of connecting plates surrounding the outside of the connecting post, each connecting plate being connected at one end to the first plate and at the other end to the second plate along the first direction, the plurality of connecting plates dividing the hollow space into a plurality of subspaces.
[0016] In some embodiments, the dispensing port is an oblique opening that is inclined relative to the first direction.
[0017] In some embodiments, the quantitative dispensing device includes a fixing member located in the second space at one end opposite to the sliding member along the first direction, and the fixing member is connected to the dispensing tube. The elastic member is connected to the sliding member at one end along the first direction and to the fixing member at the other end.
[0018] In some embodiments, the weight is indicated by scale lines and / or numbers.
[0019] In some embodiments, the dispensing tube is made of plastic;
[0020] And / or, the sliding element is made of plastic, rubber or silicone;
[0021] And / or, the elastic element is made of plastic or metal. Attached Figure Description
[0022] To better describe and illustrate embodiments and / or examples of the applications disclosed herein, reference may be made to one or more accompanying drawings. Additional details or examples used to describe the drawings should not be considered as limiting the scope of any of the disclosed applications, the embodiments and / or examples currently described, or the best mode of conduct of these applications as currently understood.
[0023] Figure 1 is a schematic diagram of the quantitative drug dispensing device about to dispense the drug in one embodiment of this application.
[0024] Figure 2 is a schematic diagram of the quantitative drug dispensing device completing drug dispensing in one embodiment of this application.
[0025] Figure 3 is a schematic diagram of the slider in one embodiment of this application.
[0026] Reference numerals: 100, medicine dispensing tube; 110, receiving cavity; 111, first space; 1111, medicine dispensing port; 112, second space; 120, weight mark; 121, scale line; 122, number; 200, sliding component; 210, first plate; 220, second plate; 230, connecting part; 231, connecting post; 232, connecting plate; 240, hollow space; 241, subspace; 300, elastic component; 400, fixing component. Detailed Implementation
[0027] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.
[0028] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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 application.
[0029] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0030] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0031] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0032] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.
[0033] The quantitative drug dispensing device provided in this application can achieve quantitative drug dispensing and has a lower cost.
[0034] Referring to Figures 1 to 3, an embodiment of this application provides a quantitative drug dispensing device including a dispensing tube 100, a sliding member 200, and an elastic member 300. The dispensing tube 100 has a receiving cavity 110, and its wall is provided with a plurality of weight markings 120 arranged along a first direction, wherein the first direction is the length direction of the dispensing tube 100. The sliding member 200 is located within the receiving cavity 110 and slides in cooperation with the receiving cavity 110 along the first direction. The receiving cavity 110 includes a first space 111 and a second space 112 located on both sides of the sliding member 200 along the first direction. The first space 111 has a dispensing port 1111 at one end facing away from the sliding member 200. The elastic member 300 is located in the second space 112, and one end of the elastic member 300 is connected to the sliding member 200 along the first direction, while the other end is connected to the dispensing tube 100.
[0035] In the quantitative drug dispensing device of the above embodiment, the sliding member 200 is located in the receiving cavity 110 and slides in cooperation with the receiving cavity 110 along the first direction. Therefore, the sliding member 200 can slide within the receiving cavity 110 along the first direction. The receiving cavity 110 is divided into a first space 111 and a second space 112 by the sliding member 200. One end of the elastic member 300 located in the second space 112 is connected to the sliding member 200, and the other end is connected to the drug dispensing tube 100. Therefore, when the drug enters the first space 111 from the drug dispensing port 1111 at one end of the first space 111, the sliding member 200 will slide along the first direction under the action of gravity of the drug, and compress the elastic member 300 to undergo elastic deformation. The tube wall of the drug dispensing tube 100 is provided with multiple weight marks 120 arranged along the first direction. Therefore, after all the drug has entered the first space 111 and the position of the sliding member 200 is stable, the weight of the drug in the first space 111 can be read simply by reading the weight mark 120 corresponding to the sliding member 200. Once the medication is dispensed and poured out from the dispensing port 1111, the sliding member 200 will slide back to its original position under the restoring force of the elastic member 300, preparing for the next dispensing. This structure eliminates the need for electronic weighing devices and displays, enabling quantitative medication dispensing, and its simple overall structure results in lower costs.
[0036] Referring to Figures 1 to 3, in some embodiments, the outer wall of the slider 200 has a hollow space 240 recessed toward the side opposite to the tube wall of the dispensing tube 100.
[0037] Specifically, the outer wall of the slider 200 is recessed inward, thus creating a hollow space 240 between it and the wall of the dispensing tube 100. This reduces the material used in manufacturing the slider 200, thereby lowering costs and reducing the overall weight of the device, making it more portable. Furthermore, when medication is loaded into the first space 111, if it falls into the gap between the outer wall of the slider 200 and the wall of the dispensing tube 100, it can be temporarily stored in the hollow space 240, preventing it from falling into the second space 112 and thus minimizing its impact on the elasticity of the elastic member 300. After a period of use, the slider 200 can simply be removed from the receiving cavity 110, and the medication temporarily stored in the hollow space 240 can be cleaned.
[0038] Referring to Figures 1 to 3, in some embodiments, the sliding member 200 includes a first plate 210, a second plate 220 and a connecting portion 230. The first plate 210 and the second plate 220 are arranged at intervals along a first direction and connected by the connecting portion 230. A hollow space 240 is formed between the first plate 210, the second plate 220, the connecting portion 230 and the tube wall of the dispensing tube 100.
[0039] Specifically, the first plate 210 is located on the side closer to the first space 111, and the second plate 220 is located on the side closer to the second space 112. One end of the elastic member 300 is fixedly connected to the second plate 220. The cross-sectional shapes and dimensions of the first plate 210 and the second plate 220 match the cross-sectional shape and size of the receiving cavity 110, so that the first plate 210 and the second plate 220 can slide smoothly in the receiving cavity 110 along the first direction, while minimizing the possibility of the drug in the first space 111 falling into the second space 112. The cross-sectional area of the connecting part 230 is smaller than the cross-sectional area of the receiving cavity 110, thereby creating a hollow space 240 between the first plate 210, the second plate 220, the connecting part 230, and the wall of the drug dispensing tube 100.
[0040] Referring to Figures 1 to 3, in some embodiments, the cross-section of the receiving cavity 110 is circular, and the hollow space 240 is annular.
[0041] Of course, in other embodiments, the cross-section of the receiving cavity 110 can also be designed as a polygonal annulus. Correspondingly, the cross-sections of the first plate 210 and the second plate 220 also need to be set as matching polygonal annulus. Understandably, when set as annulus, the manufacturing difficulty and cost are lower, and the sliding member 200 slides more smoothly in the receiving cavity 110. Subsequent embodiments will be mainly described in this manner.
[0042] Furthermore, in some embodiments, the connecting part 230 includes a connecting post 231 located at the center of the receiving cavity 110. One end of the connecting post 231 is connected to the first plate 210 along the first direction, and the other end is connected to the second plate 220. An annular hollow space 240 is formed between the first plate 210, the second plate 220, the connecting post 231 and the tube wall of the medicine dispensing tube 100.
[0043] Specifically, the cross-sections of the first plate 210, the second plate 220, and the connecting post 231 are all circular. The connecting post 231 is located at the central axis of the first plate 210, the second plate 220, and the receiving cavity 110. The connecting post 231 is connected between the first plate 210 and the second plate 220 by welding, bonding, or snap-fitting. Alternatively, the connecting post 231, the first plate 210, and the second plate 220 can also be integrally formed.
[0044] Referring to Figures 1 to 3, in some embodiments, the connecting portion 230 includes a plurality of connecting plates 232 surrounding the outside of the connecting post 231. Each connecting plate 232 is connected at one end to the first plate 210 and at the other end to the second plate 220 along a first direction. The plurality of connecting plates 232 divide the hollow space 240 into a plurality of subspaces 241.
[0045] Specifically, each connecting plate 232 is connected at one end to the first plate 210 and at the other end to the second plate 220 along the first direction, and the radially inner side of each connecting plate 232 is connected to the outer peripheral surface of the connecting post 231. In this way, the annular hollow space 240 can be divided into multiple independent, approximately fan-shaped subspaces 241 by multiple connecting plates 232. By setting multiple connecting plates 232, the strength of the sliding member 200 can be maximized and its service life extended. In this way, the weight reduction, cost reduction, and temporary drug storage of the sliding member 200 can be achieved while maintaining its strength.
[0046] Referring to Figures 1 to 3, in some embodiments, the dispensing port 1111 is an oblique opening that is inclined relative to the first direction.
[0047] Specifically, when taking the medication, the user can directly hold the dispensing device and allow the medication to enter the first space 111 through the dispensing port 1111. When the dispensing port 1111 is designed in an angled shape, it facilitates the smoother entry of the medication into the first space 111, making medication dispensing more convenient and faster.
[0048] Referring to Figures 1 to 3, in some embodiments, the quantitative dispensing device includes a fixing member 400, which is located in the second space 112 at one end opposite to the sliding member 200 along the first direction, and the fixing member 400 is connected to the dispensing tube 100. The elastic member 300 is connected to the sliding member 200 at one end along the first direction and to the fixing member 400 at the other end.
[0049] Specifically, the fixing member 400 is fixedly connected to the wall of the medicine dispensing tube 100, and the elastic member 300 is fixedly connected to the sliding member 200 at one end along the first direction, and fixedly connected to the second plate 220 at the other end. The fixing method can be welding, bonding, or snap-fitting. Of course, in other embodiments, the end of the elastic member 300 facing away from the second plate 220 can also be directly fixed to the wall of the medicine dispensing tube 100.
[0050] Referring to Figures 1 to 3, in some embodiments, the weight marking 120 is a scale line 121 and / or a number 122.
[0051] Specifically, the dispensing tube 100 is transparent, and the scale lines 121 and / or the numbers 122 can be located on the inner or outer side of the tube wall. In use, after the sliding member 200 is pressed down by the medicine and stabilized at a certain position, the current weight of the medicine dispensed can be determined by reading the scale lines 121 and / or the numbers 122 corresponding to the sliding member 200.
[0052] Referring to Figures 1 to 3, in some embodiments, the dispensing tube 100 is made of plastic. This further reduces the weight of the dispensing device and lowers its manufacturing cost. For example, the dispensing tube 100 can be made of PP or PE.
[0053] In some embodiments, the slider 200 is made of plastic, rubber, or silicone. This further reduces the weight of the dispensing device and lowers its manufacturing cost. For example, when the slider 200 is made of plastic, PP or PE materials can be selected.
[0054] In some embodiments, the elastic element 300 is made of plastic or metal. For example, the elastic element 300 may be made of PP or PE, or stainless steel.
[0055] Referring to Figures 1 to 3, in some embodiments, the elastic element 300 is directly selected as a spring. Its length along the first direction is 10mm-20mm, its wire diameter is 0.2mm-0.6mm, and the outer diameter of the spiral structure formed is 5mm-20mm.
[0056] Referring to Figures 1 to 3, in some embodiments, the gap between the slider 200 and the wall of the dispensing tube 100 is 0.01 mm. Specifically, the gap between the first plate 210 and the second plate 220 and the wall of the dispensing tube 100 is 0.01 mm. When set to this size, smooth sliding of the slider 200 within the receiving cavity 110 can be ensured, while minimizing the possibility of medication falling from the first space 111 into the second space 112 through the gap. Referring to Figures 1 to 3, in some embodiments, the thickness of the first plate 210 and the second plate 220 is 0.2-0.6 mm. When set to this size, the friction of the slider 200 can be reduced.
[0057] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0058] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.
Claims
1. A quantitative dispensing device, wherein, The quantitative drug dispensing device includes: The dispensing tube (100) has a receiving cavity (110), and the tube wall of the dispensing tube (100) is provided with a plurality of weight marks (120) arranged along a first direction, wherein the first direction is the length direction of the dispensing tube (100); A sliding member (200) is located within the receiving cavity (110) and slides with the receiving cavity (110) along the first direction. The receiving cavity (110) includes a first space (111) and a second space (112) located on both sides of the sliding member (200) along the first direction. The first space (111) has a medicine dispensing port (1111) at one end opposite to the sliding member (200). An elastic element (300) is located in the second space (112), and one end of the elastic element (300) is connected to the sliding element (200) along the first direction, and the other end is connected to the medicine dispensing tube (100).
2. The quantitative drug dispensing device according to claim 1, wherein, The outer wall of the slider (200) has a hollow space (240) that is recessed toward the side opposite to the tube wall of the dispensing tube (100).
3. The quantitative drug dispensing device according to claim 2, wherein, The sliding member (200) includes a first plate (210), a second plate (220) and a connecting part (230). The first plate (210) and the second plate (220) are arranged at intervals along the first direction and connected by the connecting part (230). The hollow space (240) is formed between the first plate (210), the second plate (220), the connecting part (230) and the tube wall of the medicine dispensing tube (100).
4. The quantitative drug dispensing device according to claim 3, wherein, The cross-section of the receiving cavity (110) is circular, and the hollow space (240) is annular.
5. The quantitative drug dispensing device according to claim 4, wherein, The connecting part (230) includes a connecting post (231) located at the center of the receiving cavity (110). One end of the connecting post (231) is connected to the first plate (210) along the first direction, and the other end is connected to the second plate (220). The hollow space (240) is formed between the first plate (210), the second plate (220), the connecting post (231), and the tube wall of the medicine dispensing tube (100).
6. The quantitative drug dispensing device according to claim 5, wherein, The connecting part (230) includes a plurality of connecting plates (232) surrounding the outside of the connecting post (231). Each connecting plate (232) is connected to the first plate (210) at one end along the first direction and to the second plate (220) at the other end. The plurality of connecting plates (232) divide the hollow space (240) into a plurality of subspaces (241).
7. The quantitative dispensing device according to any one of claims 1 to 6, wherein, The medicine dispensing port (1111) is obliquely shaped relative to the first direction.
8. The quantitative dispensing device according to any one of claims 1 to 6, wherein, The quantitative dispensing device includes a fixing member (400), which is located in the second space (112) at one end opposite to the sliding member (200) along the first direction, and the fixing member (400) is connected to the dispensing tube (100). The elastic member (300) is connected to the sliding member (200) at one end along the first direction and to the fixing member (400) at the other end.
9. The quantitative dispensing device according to any one of claims 1 to 6, wherein, The weight marking (120) is a scale line (121); or The weight identifier (120) is the number (122); or The weight markings (120) consist of scale lines (121) and numbers (122).
10. The quantitative dispensing device according to any one of claims 1 to 6, wherein, The medicine dispensing tube (100) is made of plastic.
11. The quantitative dispensing device according to any one of claims 1 to 6, wherein, The sliding component (200) is made of plastic, rubber or silicone.
12. The quantitative dispensing device according to any one of claims 1 to 6, wherein, The elastic element (300) is made of plastic or metal.