Eye drop service life prompting medicine bottle

The mechanical eye drop expiration date reminder bottle utilizes a linkage mechanism of ratchet, pawl, and elastic element to automatically count and visually remind patients of the number of days the eye drops can be used. This solves the problem of patients having difficulty accurately recording the opening date and improves medication safety and adherence.

CN121990259APending Publication Date: 2026-05-08CHANGDE VOCATIONAL & TECH COLLEGE +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHANGDE VOCATIONAL & TECH COLLEGE
Filing Date
2026-03-28
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Patients have difficulty accurately recording the opening date of eye drops, and there is a lack of intuitive reminders about the expiration date, which leads to reduced efficacy or increased risk of eye infections. Existing electronic devices are also costly, complex in structure, and environmentally unfriendly.

Method used

Design a mechanical eye drop expiration date indicator bottle. Through the linkage mechanism between the cap and the bottle body, automatic counting is achieved using ratchet, pawl and elastic element. The count is triggered when the cap is fully closed to ensure accurate recording of the number of days used, and the remaining days are displayed by a pointer.

Benefits of technology

It achieves reliable counting and visual reminders with simple structure, low cost, and no power supply, ensuring that patients use eye drops within the safe period and improving medication adherence and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses an eye drop service life prompting medicine bottle. The problem that the unsealing date is recorded depending on manual memory when the eye drops are used, and errors are prone to occurring is solved. The bottle comprises a bottle body, a day counting piece, a bottle cap, a sealing mechanism, a regulation and control mechanism and a day counting mechanism, the day counting piece is arranged on the bottle body, the day counting piece and the bottle body form a cavity, the day counting mechanism is arranged in the cavity, the bottle body is in threaded connection with the bottle cap, the sealing mechanism is arranged on the bottle cap in a penetrating mode, the regulation and control mechanism is arranged on the bottle cap, and the regulation and control mechanism is attached to the day counting mechanism; the day counting mechanism comprises a bottom ring, sixty ratchets, a top ring, a pointer, an elastic piece, a pawl and a connecting column, the lower end of the bottom ring is arranged on the day counting piece, the sixty ratchets are arranged at the upper end of the bottom ring in the circumferential direction, the top ring is arranged on the inner wall of the day counting piece in a penetrating mode, the connecting column is arranged on the lower end face of the top ring, and the end of the connecting column is hinged to the tail of the pawl; the head of the pawl is meshed with the ratchet, and one end of the elastic piece is arranged on the lower end face of the top ring.
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Description

Technical Field

[0001] This invention specifically relates to an eye drop bottle with an expiration date indicator, belonging to the field of pharmaceutical containers. Background Technology

[0002] Eye drops are a commonly used dosage form for the treatment of ophthalmic diseases and eye care. Most multi-dose eye drop products have a strict shelf life after opening. According to Good Manufacturing Practices (GMP) and clinical usage requirements, eye drops containing preservatives are generally used within 30 days after opening, while preservative-free eye drops have an even shorter shelf life, typically 7-28 days. After the expiration date, the medication may become less effective or increase the risk of eye infections due to microbial contamination, degradation of active ingredients, or oxidative deterioration, posing a potential threat to the patient's eye health.

[0003] Currently, patients commonly encounter the following problems when using eye drops in clinical practice: First, patients often find it difficult to accurately record the opening date and easily forget the specific time of first opening; second, there is a lack of intuitive reminder mechanisms during use, making it impossible to intuitively determine the remaining days of use; third, traditional eye drop bottles rely solely on patients' subjective memory or additional markings to manage the usage cycle, which is unreliable and prone to misjudgment due to markings falling off, illegible handwriting, or memory bias. Although existing technologies include bottle caps with timers or electronic reminder devices, these solutions suffer from complex structures, high costs, battery power requirements, and poor environmental friendliness, making large-scale application difficult.

[0004] Therefore, there is an urgent need to develop a mechanical eye drop bottle that is simple in structure, low in cost, requires no power supply, and can intuitively display the usage progress. Through the linkage mechanism between the cap and the bottle body, it can automatically count and visually remind patients of the number of days of use after opening, ensuring that patients use the medication within the safe period and improving medication adherence and safety. Summary of the Invention

[0005] To overcome the shortcomings of existing technologies, a medicine bottle for indicating the expiration date of eye drops is provided to solve the above problems.

[0006] An eye drop expiration date indicator bottle is characterized by comprising a bottle body, a day counter, a cap, a sealing mechanism, an adjustment mechanism, and a day counter mechanism. The day counter is provided on the bottle body, and the day counter and the bottle body form a cavity. The day counter mechanism is provided inside the cavity. The bottle body and the cap are threadedly connected. The cap is provided with a sealing mechanism. The cap is provided with an adjustment mechanism, which is attached to the day counter mechanism. The timing mechanism includes a bottom ring, sixty ratchet teeth, a top ring, a pointer, an elastic element, a pawl, and a connecting post. The lower end of the bottom ring is mounted on the timing component, and the upper end of the bottom ring has sixty ratchet teeth arranged circumferentially. The top ring passes through the inner wall of the timing component, and the lower end of the top ring has a connecting post. The end of the connecting post is hinged to the tail of the pawl, and the head of the pawl engages with the ratchet teeth. One end of the elastic element is mounted on the lower end of the top ring, and the other end of the elastic element is mounted on the pawl. The pointer is mounted on the top ring.

[0007] As a preferred embodiment: the timer set is installed on the bottle body, the timer has a scale groove machined along its outer wall circumferentially, the outer wall of the timer has an initial scale groove machined, the inner wall of the timer has an annular groove machined along its circumferentially, and a top ring is inserted into the annular groove.

[0008] As a preferred embodiment, the bottle cap has several strip-shaped protrusions along its circumference, and the top of the bottle cap is machined with a threaded hole, which is threadedly connected to the sealing mechanism.

[0009] As a preferred embodiment: the sealing mechanism includes a screw handle, a sealing post, a sealing plug, and a hinged extrusion component. One end of the screw handle is provided with a screw handle, and the other end of the screw handle is provided with a hinged extrusion component. The sealing plug is machined with a hinge groove, and the hinged extrusion component is hinged in the hinge groove. The outer wall of the sealing post is machined with a threaded groove, and the sealing post passes through a threaded hole. The threaded groove and the threaded hole are threadedly connected, and the sealing plug seals the medicine outlet of the bottle.

[0010] As a preferred embodiment: the control mechanism includes a fixing component, a slider, a pushing pad, an L-shaped component, and a limiting screw. The fixing component is set on the bottle cap. The upper end of the slider is provided with an L-shaped component, and the lower end of the slider is provided with a pushing pad. An L-shaped cavity is machined on the fixing component, and a positioning screw hole is machined on the fixing component. The positioning screw hole is connected to the L-shaped cavity, and the L-shaped component passes through the L-shaped cavity. The limiting screw passes through the positioning screw hole, and the positioning screw hole is threadedly connected to the limiting screw. The L-shaped component abuts against the limiting screw, and the pushing pad abuts against the top ring.

[0011] The beneficial effects of this invention are as follows: This invention utilizes a control mechanism that works in conjunction with the upper surface of the top ring. When the bottle cap is screwed to its final stage, the control mechanism generates controllable friction with the top ring, causing it to rotate precisely. This ensures that each closing action triggers the counting mechanism, improving the reliability and consistency of the counting. Through the cooperation of the pawl and the elastic element, the pawl retracts in a controlled manner and slides into the next ratchet tooth groove as the top ring rotates, completing tooth-by-tooth positioning. Simultaneously, the elastic element provides a restoring force, ensuring the pawl remains stably engaged after each count. This guarantees unidirectional rotation and accurate stepping. This invention triggers a count only once when the bottle cap is fully closed, and the counting process is irreversible, effectively preventing duplicate or missed counts. It forms a reliable and intuitive medication frequency recording mechanism, helping patients to standardize their medication adherence. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of the device. Figure 3 This is a schematic diagram of the three-dimensional structure of the annular groove; Figure 4 A three-dimensional structural diagram of the bottle body and sealing mechanism; Figure 5 This is a three-dimensional structural diagram of the sealing mechanism; Figure 6 This is a schematic diagram of the cross-sectional structure of the sealing mechanism; Figure 7 This is a schematic diagram of the three-dimensional structure of the bottle cap; Figure 8 A schematic diagram of the three-dimensional structure of the control mechanism; Figure 9 This is a three-dimensional structural diagram of the limit screw; Figure 10 This is a schematic diagram of the three-dimensional structure of the L-shaped cavity; Figure 11 A three-dimensional structural diagram of the day-counting component and the day-counting mechanism; Figure 12 This is a schematic diagram of the three-dimensional structure of the astronomical measuring mechanism; Figure 13 This is a three-dimensional structural diagram of the elastic element.

[0013] In the diagram: Bottle body-1; Cavity-11; Day counter-2; Scale groove-2-1; Initial scale groove-2-2; Annular groove-2-3; Bottle cap-3; Strip protrusion-3-1; Threaded hole-3-2; Sealing mechanism-4; Tightening handle-4-1; Sealing post-4-2; Threaded groove-4-21; Sealing plug-4-3; Hinge groove-4-31; Hinge extrusion part-4-4; Adjustment mechanism-5; Fixing part-5-1; L-shaped cavity-5-11; Positioning screw hole-5-12; Slider-5-2; Push pad-5-3; L-shaped part-5-4; Limit screw-5-5; Day counter-6; Bottom ring-6-1; Racket-6-2; Top ring-6-3; Pointer-6-4; Elastic part-6-5; Pawl-6-6; Connecting post-6-7. Detailed Implementation

[0014] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0015] Specific implementation method one: Combining Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 and Figure 13 This embodiment describes an eye drop expiration date indicator bottle, which includes a bottle body 1, a day counter 2, a bottle cap 3, a sealing mechanism 4, an adjustment mechanism 5, and a day counter 6. The day counter 2 is provided on the bottle body 1, and the day counter 2 and the bottle body 1 form a cavity 11. The day counter 6 is provided inside the cavity 11. The bottle body 1 is threadedly connected to the bottle cap 3. The sealing mechanism 4 is provided on the bottle cap 3, and the adjustment mechanism 5 is provided on the bottle cap 3. The adjustment mechanism 5 is attached to the day counter 6. The timing mechanism 6 includes a bottom ring 6-1, sixty ratchet teeth 6-2, a top ring 6-3, a pointer 6-4, an elastic element 6-5, a pawl 6-6, and a connecting post 6-7. The lower end of the bottom ring 6-1 is mounted on the timing component 2. The upper end of the bottom ring 6-1 is provided with sixty ratchet teeth 6-2 along its circumference. The top ring 6-3 passes through the inner wall of the timing component 2. The lower end face of the top ring 6-3 is provided with a connecting post 6-7. The end of the connecting post 6-7 is hinged to the tail of the pawl 6-6. The head of the pawl 6-6 engages with the ratchet teeth 6-2. One end of the elastic element 6-5 is located on the lower end face of the top ring 6-3, and the other end of the elastic element 6-5 is located on the pawl 6-6. The pointer 6-4 is mounted on the top ring 6-3.

[0016] When the bottle cap 3 is opened, the ratchet 6-2 locks the pawl 6-6, so that although the regulating mechanism 5 has friction with the top ring 6-3, it will not push the top ring 6-3 to move. When the bottle cap 3 is closed, the bottle cap 3 gradually rotates downwards. When it is almost finished to the end, the control mechanism 5 is against the upper surface of the top ring 6-3, generating friction with the top ring 6-3 and pushing the top ring 6-3 to rotate. The pawl 6-6 squeezes the elastic element 6-5. As the top ring 6-3 rotates, the pawl 6-6 enters the groove of the next ratchet 6-2, and the pointer 6-4 moves synchronously.

[0017] Specific Implementation Method 2: This implementation method is a further limitation of Specific Implementation Method 1. The metering component 2 is set on the bottle body 1. The metering component 2 has a scale groove 2-1 machined along its outer wall circumferentially. The outer wall of the metering component 2 has an initial scale groove 2-2 machined. The inner wall of the metering component 2 has an annular groove 2-3 machined along its circumferentially. A top ring 6-3 passes through the annular groove 2-3.

[0018] The pointer 6-4 initially points to the initial scale slot 2-2. With each movement, it points to the subsequent scale slot 2-1, thus indicating the number of days the patient needs to use the product.

[0019] Specific implementation method three: This implementation method is a further limitation of specific implementation method one or two. The bottle cap 3 is provided with a number of strip-shaped protrusions 3-1 along its circumference. The top of the bottle cap 3 is machined with a threaded hole 3-2, which is threadedly connected to the sealing mechanism 4.

[0020] Specific Implementation Method 4: This implementation method is a further limitation of Specific Implementation Methods 1, 2 or 3. The sealing mechanism 4 includes a screw handle 4-1, a sealing post 4-2, a sealing plug 4-3, and a hinged extrusion member 4-4. One end of the screw handle 4-1 is provided with a screw handle 4-1, and the other end of the screw handle 4-1 is provided with a hinged extrusion member 4-4. The sealing plug 4-3 is machined with a hinge groove 4-31, and the hinged extrusion member 4-4 is hinged in the hinge groove 4-31. The outer wall of the sealing post 4-2 is machined with a threaded groove 4-21. The sealing post 4-2 passes through the threaded hole 3-2, and the threaded groove 4-21 is threadedly connected to the threaded hole 3-2. The sealing plug 4-3 seals the medicine outlet of the bottle body 1.

[0021] Insert the sealing post 4-2 into the threaded hole 3-2, and rotate the sealing post 4-2 by turning the handle 4-1. The threaded groove 4-21 on the sealing post 4-2 is threadedly connected to the threaded hole 3-2. As the sealing post 4-2 gradually rotates and moves downward, the sealing plug 4-3 seals the medicine outlet of the bottle body 1, thereby controlling the sealing force of the medicine outlet of the bottle body 1 and achieving manual control, avoiding the problem of contact with air caused by the traditional bottle cap not being screwed on tightly.

[0022] Specific Implementation Method 5: This implementation method further defines Specific Implementation Methods 1, 2, 3, or 4. The control mechanism 5 includes a fixing component 5-1, a slider 5-2, a pushing pad 5-3, an L-shaped component 5-4, and a limiting screw 5-5. The fixing component 5-1 is mounted on the bottle cap 3. The upper end of the slider 5-2 is provided with an L-shaped component 5-4, and the lower end of the slider 5-2 is provided with a pushing pad 5-3. An L-shaped cavity 5-11 is machined on the fixing component 5-1, and a positioning screw hole 5-12 is machined on the fixing component 5-1. The positioning screw hole 5-12 is connected to the L-shaped cavity 5-11, and the L-shaped component 5-4 passes through the L-shaped cavity 5-11. The limiting screw 5-5 passes through the positioning screw hole 5-12, and the positioning screw hole 5-12 is threadedly connected to the limiting screw 5-5. The L-shaped component 5-4 abuts against the limiting screw 5-5, and the pushing pad 5-3 abuts against the top ring 6-3.

[0023] When in use, the bottle cap 3 is gradually rotated downwards. When it is almost finished being turned, push the soft pad 5-3 against the top ring 6-3, and rely on friction to move the top ring 6-3.

[0024] When the patient uses eye drops twice a day, the L-shaped part 5-4 is on the right side of the L-shaped cavity 5-11. Each time the soft pad 5-3 is pushed, the top ring 6-3 moves, causing the pawl 6-6 to move one position of the ratchet 6-2. There are a total of sixty ratchet 6-2. When used twice a day, the pointer 6-4 moves two scale slots 2-1 each day.

[0025] When the patient uses the product once a day, remove the limiting screw 5-5, slide the L-shaped part 5-4 to the left side of the L-shaped cavity 5-11, and move the pushing pad 5-3 to the left side simultaneously. Then install the limiting screw 5-5 so that the right side of the L-shaped part 5-4 is against the limiting screw 5-5. At this time, because the position of the pushing pad 5-3 has moved forward, when the bottle cap 3 is screwed down, the pushing pad 5-3 contacts the top ring 6-3 one ratchet tooth 6-2 width ahead. So when the pushing pad 5-3 pushes the top ring 6-3 to move, the pawl 6-6 moves two ratchet teeth 6-2 positions. Similarly, the pointer 6-4 moves two scale grooves 2-1 every day.

[0026] Working principle: When the bottle cap 3 is opened, the ratchet 6-2 locks the pawl 6-6, so that although the regulating mechanism 5 has friction with the top ring 6-3, it will not push the top ring 6-3 to move. When the bottle cap 3 is closed, it gradually rotates downwards. When it is almost fully screwed on, the control mechanism 5 comes into contact with the upper surface of the top ring 6-3, generating friction with it. As the bottle cap 3 rotates to its final position, it pushes the top ring 6-3 to rotate, causing the pawl 6-6 to press against the elastic element 6-5. As the top ring 6-3 rotates, the pawl 6-6 enters the groove of the next ratchet 6-2. At the same time, the pointer 6-4 moves synchronously on the counting element 2, allowing the patient to directly observe the position indicated by the pointer 6-4.

Claims

1. An eye drop bottle with an expiration date indicator, characterized in that: The device includes a bottle body (1), a day counter (2), a bottle cap (3), a sealing mechanism (4), a regulating mechanism (5), and a day counter (6). The bottle body (1) is provided with a day counter (2), and the day counter (2) and the bottle body (1) form a cavity (11). The day counter (6) is provided inside the cavity (11). The bottle body (1) is threadedly connected to the bottle cap (3). The bottle cap (3) is provided with a sealing mechanism (4), and the bottle cap (3) is provided with a regulating mechanism (5). The regulating mechanism (5) is attached to the day counter (6). The timing mechanism (6) includes a bottom ring (6-1), sixty ratchet teeth (6-2), a top ring (6-3), a pointer (6-4), an elastic element (6-5), a pawl (6-6), and a connecting post (6-7). The lower end of the bottom ring (6-1) is set on the timing component (2). The upper end of the bottom ring (6-1) is provided with sixty ratchet teeth (6-2) along its circumference. The top ring (6-3) passes through the inner wall of the timing component (2). The lower end face of the top ring (6-3) is provided with a connecting post (6-7). The end of the connecting post (6-7) is hinged to the tail of the pawl (6-6). The head of the pawl (6-6) meshes with the ratchet teeth (6-2). One end of the elastic element (6-5) is set on the lower end face of the top ring (6-3). The other end of the elastic element (6-5) is set on the pawl (6-6). The pointer (6-4) is set on the top ring (6-3).

2. The eye drop bottle with expiration date indication according to claim 1, characterized in that: The timing component (2) is set on the bottle body (1). The timing component (2) has a scale groove (2-1) processed along its outer wall circumferentially. The timing component (2) has an initial scale groove (2-2) processed along its outer wall. The timing component (2) has an annular groove (2-3) processed along its inner wall circumferentially. A top ring (6-3) is inserted into the annular groove (2-3).

3. The eye drop bottle with expiration date indication according to claim 1, characterized in that: The bottle cap (3) has several strip-shaped protrusions (3-1) along its circumference. The top of the bottle cap (3) is machined with a threaded hole (3-2), which is threadedly connected to the sealing mechanism (4).

4. The eye drop bottle with expiration date indication according to claim 3, characterized in that: The sealing mechanism (4) includes a screw handle (4-1), a sealing column (4-2), a sealing plug (4-3), and a hinged extrusion component (4-4). One end of the screw handle (4-1) is provided with a screw handle (4-1), and the other end of the screw handle (4-1) is provided with a hinged extrusion component (4-4). A hinge groove (4-31) is machined on the sealing plug (4-3), and the hinged extrusion component (4-4) is hinged in the hinge groove (4-31). A threaded groove (4-21) is machined on the outer wall of the sealing column (4-2), and the sealing column (4-2) passes through the threaded hole (3-2). The threaded groove (4-21) is threadedly connected to the threaded hole (3-2), and the sealing plug (4-3) seals the medicine outlet of the bottle body (1).

5. The eye drop bottle with expiration date indication according to claim 1, characterized in that: The control mechanism (5) includes a fixing part (5-1), a slider (5-2), a pushing pad (5-3), an L-shaped part (5-4), and a limiting screw (5-5). The fixing part (5-1) is set on the bottle cap (3). The upper end of the slider (5-2) is provided with an L-shaped part (5-4), and the lower end of the slider (5-2) is provided with a pushing pad (5-3). An L-shaped cavity (5-11) is machined on the fixing part (5-1). There is a positioning screw hole (5-12), which is connected to the L-shaped cavity (5-11). An L-shaped part (5-4) is inserted inside the L-shaped cavity (5-11). A limiting screw (5-5) is inserted inside the positioning screw hole (5-12). The positioning screw hole (5-12) is threadedly connected to the limiting screw (5-5). The L-shaped part (5-4) is attached to the limiting screw (5-5), and the push pad (5-3) is attached to the top ring (6-3).