Sterile metered-dose eye drop vial

Abstract

A sterile metered-dose eye drop vial, comprising: a vial body (100); a supporting member (200), mounted at the vial opening of the vial body (100) and communicated with the inner cavity of the vial body (100); a vial cap (300), provided with a liquid-dropping opening (310) and connected to the vial body (100), the vial cap (300) being internally provided with a first accommodating cavity (320) and a second accommodating cavity (330), and being configured to slidingly switch between a first position and a second position under the action of an external force; a core column (400), one end of which is connected to the supporting member (200), and the other end of which blocks the liquid-dropping opening (310) when the vial cap (300) is located at the first position and is disengaged from the liquid-dropping opening (310) when the vial cap (300) is located at the second position. The sterile metered-dose eye drop vial prevents bacteria in external air from entering an eye drop in the vial body (100), thereby achieving sterile preservation of the eye drop without needing a bacteriostatic agent; additionally, the eye drop vial keeps the flow rate of eye drops dripping into eyes constant every time.

Description

A sterile quantitative eye drops bottle Technical Field

[0001] The present application relates to the technical field of medical liquid storage, and in particular to a sterile quantitative eye drop bottle. Background Art

[0002] Eye drops are one of the most commonly used medications for ophthalmic diseases, providing a direct and immediate therapeutic effect on many eye conditions. Currently, the bottle and spout of eye drop bottles are straight-cylinder. When administering eye drops, patients squeeze the bottle with their fingers to force the liquid out of the bottle opening. Each time the eye drops are instilled into the eye, the flow rate is completely controlled by the force applied to the bottle, which can easily lead to overdose. Excessive eye drops not only wastes treatment costs and increases treatment costs for patients, but can also cause adverse reactions.

[0003] Furthermore, during the eye drop application process, the eye drops come into contact with air. Prolonged contact can allow bacteria to enter, seriously affecting the quality of the eye drops. To ensure that the eye drops meet sterility requirements during use, antibacterial agents are often added to the eye drops. However, antibacterial agents may damage corneal epithelial cells, causing cell degeneration and leading to pseudokeratitis. Antibacterial agents may also disrupt the tear film on the ocular surface, causing dry eye. Technical issues

[0004] In the prior art, the flow rate of eye drops from the eye dropper bottle is controlled by squeezing the bottle with fingers, and there is a technical problem that an antibacterial agent needs to be added to the eye drops. Technical Solutions

[0005] A sterile quantitative eye drop bottle provided in an embodiment of the present application includes: a bottle body; a support member, which is installed at the bottle mouth of the bottle body and connected to the inner cavity of the bottle body; a bottle cap provided with a dripping port, connected to the bottle body, and has a first accommodating cavity and a second accommodating cavity on the inner side thereof, and is configured to slide and switch between the first and second positions under the action of an external force; and a core column, one end of which is connected to the support member, and the other end of which blocks the dripping port when the bottle cap is in the first position, and is detached from the dripping port when the bottle cap is in the second position; wherein, when the bottle cap is in the first position, the core column blocks the first and second accommodating chambers; when the bottle cap is in the second position, the second accommodating chamber is connected to the dripping port, the core column isolates the first and second accommodating chambers, and the first accommodating chamber is connected to the support member.

[0006] In one possible implementation, the core column includes a column and a first petal and a second petal spaced apart on the outside of the column; one end of the column is connected to the support, and the other end of the column extends out of the bottle cap through the drip port; the bottle cap includes a cap and a third petal, a fourth petal and a slide cylinder spaced apart on the inner wall of the cap; the inner wall of the slide cylinder is slidably connected and sealed to the outer wall of the support; wherein the inner side of the third petal is connected to the slide cylinder and is configured to fit with the first petal when the bottle cap is in the first station; the fourth petal is configured to fit with the second petal when the bottle cap is in the first station, and to fit with the first petal when the bottle cap is in the second station.

[0007] In one possible implementation, the first petal and the second petal are inclined from the inside to the outside toward the end of the core column for sealing the dripping port; the third petal and the fourth petal are inclined from the outside to the inside toward the direction away from the dripping port.

[0008] In a possible implementation, the core column further includes an annular boss; the annular boss is arranged on the column body and located outside the bottle cap, and is configured to be close to the edge of the dripping port to seal the dripping port when the bottle cap is located at the first station.

[0009] In a possible implementation, the bottle body is provided with a fixing groove; the support member includes a connecting tube and a first clamping portion; the first clamping portion is provided on the outer wall of the connecting tube and is clamped in the fixing groove; the core column is connected to the connecting tube.

[0010] In a possible implementation, the support member further includes a second clamping portion disposed in the connecting tube; and one end of the core column is clamped to the second clamping portion.

[0011] In a possible implementation, the sterile quantitative eye drops bottle further includes: an elastic member, both ends of which are respectively connected to the bottle body and the bottle cap, and is configured to increase elastic potential energy when the bottle cap moves toward the bottle body.

[0012] In a possible implementation, the sterile quantitative eye drops bottle further includes: a shielding cover located outside the elastic member, one end of which is fixed to the bottle body, and the other end of which is slidably connected to and sealed against the outer wall of the bottle cap.

[0013] In one possible implementation, the sterile quantitative eye drops bottle further includes: a limiting assembly, including a first limiting portion and a second limiting portion; wherein the first limiting portion is arranged on the bottle cap; the second limiting portion is arranged on the bottle body, and is configured to prevent the bottle cap from detaching from the bottle body through the first limiting portion.

[0014] In a possible implementation, the sterile quantitative eye drops bottle further includes: a waterproof breathable membrane installed in the support member; wherein a balancing through hole is provided inside the core column, and the balancing through hole is connected to the inner cavity of the bottle body through the waterproof breathable membrane. Beneficial effects

[0015] The technical solution in the embodiment of the present application has at least the following technical effects: the sterile quantitative eye drops bottle provided in the embodiment of the present application includes a bottle body, a support member, a bottle cap, and a stem. When a patient uses the sterile quantitative eye drops bottle, after sliding the bottle cap to switch the bottle cap from the first position to the second position, the second accommodating chamber is connected to the dripping port, allowing the eye drops in the second accommodating chamber to flow out from the dripping port, and the second accommodating chamber is isolated from the first accommodating chamber by the stem, so that the eye drops in the first accommodating chamber and the bottle body cannot flow into the second accommodating chamber, thereby ensuring that the flow rate of eye drops dropped into the eye can be kept constant each time; the first accommodating chamber is connected to the support member, so that the eye drops in the bottle body flow into the first accommodating chamber through the support member, and the first accommodating chamber and the bottle body are not connected to the outside world, thereby preventing bacteria in the outside air from entering the eye drops in the bottle body. When the patient slides the bottle cap to switch the bottle cap from the second station to the first station, the first accommodating chamber is connected to the second accommodating chamber, allowing the eye drops in the first accommodating chamber to flow into the second accommodating chamber; when the bottle cap reaches the first station, the core column blocks the first accommodating chamber and the second accommodating chamber, and the first accommodating chamber is no longer connected to the inner cavity of the bottle body, and the bottle body is isolated from the outside world, thereby achieving sterile preservation of the eye drops without adding antibacterial agents to the eye drops. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments of the present application or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] FIG1 is a schematic structural diagram of a sterile quantitative eye drops bottle provided in an embodiment of the present application;

[0018] FIG2 is a cross-sectional view of the sterile quantitative eye drops bottle in FIG1 taken along plane AA when closed;

[0019] FIG3 is a cross-sectional view of the sterile quantitative eye drops bottle in FIG1 taken along plane AA when opened;

[0020] FIG4 is a schematic structural diagram of a core column provided in an embodiment of the present application;

[0021] FIG5 is a schematic structural diagram of a bottle body provided in an embodiment of the present application;

[0022] FIG6 is a schematic structural diagram of a support member provided in an embodiment of the present application;

[0023] FIG7 is a schematic structural diagram of the second clamping portion provided in an embodiment of the present application.

[0024] Icons: 100 - bottle body; 110 - bottle body; 111 - fixing groove; 120 - bottle bottom; 200 - support member; 210 - connecting tube; 220 - first clamping part; 230 - second clamping part; 231 - fixing ear; 2311 - fixing hole; 300 - bottle cap; 310 - dripping port; 320 - first accommodating chamber; 330 - second accommodating chamber; 340 - cap; 350 - third petal; 360-fourth petal; 370-slide; 400-core column; 410-column; 411-fixing surface; 412-fixing column; 420-first petal; 430-second petal; 440-annular boss; 450-balancing through hole; 500-elastic member; 600-shielding cover; 700-waterproof breathable membrane; 800-limiting assembly; 810-first limiting portion; 820-second limiting portion. Best Mode for Carrying Out the Invention

[0025] The present application embodiment provides a sterile quantitative eye drop bottle, as shown in Figures 1 to 7, the sterile quantitative eye drop bottle includes a bottle body 100, a support member 200, a bottle cap 300 and a stem 400. The support member 200 is mounted on the bottle mouth of the bottle body 100 and is connected to the inner cavity of the bottle body 100. The bottle cap 300 is provided with a dripping port 310 and is connected to the bottle body 100. The inner side thereof has a first accommodating cavity 320 and a second accommodating cavity 330, and is configured to slide and switch between the first and second positions under the action of an external force. One end of the stem 400 is connected to the support member 200, and the other end of the stem 400 blocks the dripping port 310 of the bottle cap 300 when the bottle cap 300 is in the first position, and disengages from the dripping port 310 of the bottle cap 300 when the bottle cap 300 is in the second position.

[0026] As shown in Figures 2 and 3 , the sterile metered-dose eye drop bottle further includes an elastic member 500 . The elastic member 500 is connected at both ends to the bottle body 100 and the bottle cap 300 , respectively, and is configured to increase its elastic potential energy when the bottle cap 300 moves toward the bottle body 100 . In the embodiment shown in Figures 2 and 3 , the elastic member 500 is a compression spring disposed between the bottle cap 300 and the bottle body 100 . When the patient actuates the bottle cap 300 toward the bottle body 100 , i.e., when the bottle cap 300 switches from the first position to the second position, the compression spring is further compressed, increasing its elastic potential energy. When the patient releases the bottle cap 300 , the compression spring forces the bottle cap 300 to move from the second position to the first position. In other embodiments, the elastic member 500 is a tension spring disposed between the bottle cap 300 and the bottle body 100 . The elastic member 500 enables the bottle cap 300 to be quickly actuated from the second position to the first position without requiring any user intervention. Specifically, after the user slides the bottle cap 300 to switch the bottle cap 300 from the first station to the second station, the elastic potential energy of the elastic member 500 increases, and the eye drops flow out from the dripping port 310; after completing the dripping of the eye drops, the user releases the bottle cap 300, and the elastic potential energy of the elastic member 500 is released, thereby pushing the bottle cap 300 to switch from the second station to the first station. Modes for Carrying Out the Invention

[0027] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] In the description of the embodiments of the present application, it should be noted that the orientations or positional relationships indicated by the terms "upper", "lower", "inside", "outside", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limitations on the present invention. The terms "first", "second", "third", and "fourth" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be a communication between the internal parts of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0029] Figure 2 shows the eye drops bottle in a closed state, i.e., the bottle cap 300 is in the first position, at which point the stem 400 blocks the first accommodating cavity 320 and the second accommodating cavity 330. Figure 3 shows the eye drops bottle in an open state, i.e., the bottle cap 300 is in the second position, at which point the second accommodating cavity 330 is connected to the dripping port 310, the stem 400 isolates the first accommodating cavity 320 from the second accommodating cavity 330, and the first accommodating cavity 320 is connected to the support member 200.

[0030] 2 to 4 , the stem 400 includes a column 410 and a first petal 420 and a second petal 430 spaced apart on the outside of the column 410. One end of the column 410 is connected to the support 200, and the other end of the column 410 extends out of the bottle cap 300 through the drip port 310. In the embodiment shown in FIG5 , the first petal 420 and the column 410 are integrally formed, and the second petal 430 and the column 410 are integrally formed. In other embodiments, the first petal 420 and the column 410, as well as the second petal 430 and the column 410, are connected by means of snap-fitting, bonding, or the like.

[0031] The bottle cap 300 includes a cap body 340 and a third flap 350, a fourth flap 360, and a slide 370 spaced apart from each other on the inner wall of the cap body 340. In the embodiment shown in Figures 2 and 3, the third flap 350 and the cap body 340 are integrally formed, and the fourth flap 360 and the cap body 340 are integrally formed. In other embodiments, the third flap 350 and the cap body 340, as well as the fourth flap 360 and the cap body 340, are connected by means of snap fastening, bonding, or the like.

[0032] The inner wall of the slide 370 is slidably connected to the outer wall of the support 200 and sealed. Specifically, the inner wall of the slide 370 and the outer wall of the support 200 are in contact with each other to achieve sealing; or, a rubber ring is provided on the inner wall of the slide 370 and / or the outer wall of the support 200 to achieve sealing.

[0033] The inner side of the third flap 350 is connected to the slide 370 and is configured to mate with the first flap 420 when the bottle cap 300 is in the first working position. Taking the orientation shown in Figure 2 as an example, when the bottle cap 300 is in the first working position, the lower surface of the third flap 350 is in close contact with the upper surface of the first flap 420, thereby sealing the first accommodating cavity 320. The first accommodating cavity 320 is neither connected to the second accommodating cavity 330 nor to the support member 200. The fourth flap 360 is configured to mate with the second flap 430 when the bottle cap 300 is in the first working position, and to mate with the first flap 420 when the bottle cap 300 is in the second working position. Taking the orientation shown in Figures 2 and 3 as an example, the lower surface of the fourth petal body 360 in Figure 2 is tightly attached to the upper surface of the second petal body 430, so that the first accommodating cavity 320 is separated from the second accommodating cavity 330, and the drip port 310 that connects the second accommodating cavity 330 with the outside world is blocked by the core column 400; the upper surface of the fourth petal body 360 in Figure 3 is tightly attached to the lower surface of the first petal body 420, and the first petal body 420 is separated from the third petal body 350, so that the first accommodating cavity 320 is separated from the second accommodating cavity 330 and connected to the inner cavity of the bottle body 100.

[0034] The first petal 420, the second petal 430, the third petal 350, and the fourth petal 360 shown in Figures 2 and 3 are all arranged at an angle. Specifically, the first petal 420 and the second petal 430 are inclined from the inside to the outside toward the end of the stem 400 for sealing the dripping port 310, and the third petal 350 and the fourth petal 360 are inclined from the outside to the inside toward the direction away from the dripping port 310. In other embodiments, the first petal 420, the second petal 430, the third petal 350, and the fourth petal 360 can also be arranged perpendicular to the movement direction of the bottle cap 300.

[0035] Continuing with reference to Figures 2 to 4, the stem 400 further includes an annular boss 440. The annular boss 440 is disposed on the stem 410 and is located outside the bottle cap 300. The annular boss 440 is configured to abut against the edge of the dripping port 310 to block the dripping port 310 when the bottle cap 300 is in the first position. Specifically, the edge of the dripping port 310 is configured as an inclined surface, and the top surface of the annular boss 440 is configured as an inclined surface that matches the edge of the dripping port 310. This allows the annular boss 440 to abut against the edge of the dripping port 310 to achieve a better sealing effect, thereby preventing the eye drops in the second accommodating chamber 330 from flowing out.

[0036] In some embodiments, the bottle body 100 and the support member 200 are connected by a snap-fit ​​method. As shown in Figures 5 and 6, the bottle body 100 is provided with a fixing groove 111; the support member 200 includes a connecting tube 210 and a first snap-fit ​​portion 220; the first snap-fit ​​portion 220 is provided on the outer wall of the connecting tube 210 and snap-fitted into the fixing groove 111; the connecting tube 210 is connected to the core column 400. The above structure can quickly connect the bottle body 100 and the support member 200, facilitating the assembly and production of the sterile quantitative eye drop bottle. In other embodiments, the bottle body 100 and the support member 200 are connected by integral connection, threaded connection, bonding, or the like.

[0037] The support member 200 also includes a second clamping portion 230 disposed in the connecting tube 210. One end of the core column 400 is clamped to the second clamping portion 230. Figure 7 shows a specific structure of the second clamping portion 230, which includes two fixing ears 231, each of which is provided with a fixing hole 2311. As shown in Figure 4, one end of the core column 400 has a fixing surface 411 that fits with the inner side surfaces of the two fixing ears 231, and a fixing column 412 is provided on each fixing surface 411. When one end of the core column 400 is connected to the second clamping portion 230, the two fixing ears 231 clamp the fixing surface 411 of the core column 400, and the fixing column 412 is located in the fixing hole 2311.

[0038] Furthermore, the sterile quantitative eye drops bottle also includes a shielding cap 600, which is located outside the elastic member 500. One end of the shielding cap 600 is fixed to the bottle body 100, and the other end is slidably connected to and sealed against the outer wall of the bottle cap 300. When the bottle cap 300 switches between the first and second working positions, one end of the shielding cap 600 slides relative to the bottle cap 300, maintaining a seal to prevent external dust from entering between the shielding cap 600 and the bottle cap 300.

[0039] Continuing with Figures 2 and 3 , the sterile, quantitative eye drop bottle also includes a waterproof, breathable membrane 700 mounted within the support member 200. A balancing hole 450 is provided within the stem 400, communicating with the inner cavity of the bottle body 100 via the waterproof, breathable membrane 700. The waterproof, breathable membrane 700 allows air to pass through while blocking water, and may specifically be an expanded polytetrafluoroethylene (PTFE) membrane. When the amount of eye drops in the bottle body 100 decreases, external air enters the inner cavity of the bottle body 100 through the balancing hole 450 and the waterproof, breathable membrane 700, thereby maintaining air pressure balance inside and outside the bottle body 100. This allows the eye drops in the bottle body 100 to flow smoothly under the action of gravity, without squeezing the bottle body 100 and preventing significant deformation.

[0040] The sterile metered-quantity eye drop bottle also includes a stopper assembly 800, which includes a first stopper 810 and a second stopper 820. The first stopper 810 is provided on the bottle cap 300, while the second stopper 820 is provided on the bottle body 100 and is configured to prevent the bottle cap 300 from detaching from the bottle body 100 via the first stopper 810. The first stopper 810 and the second stopper 820 shown in Figures 2 and 3 are protrusions provided on the bottle body 100 and the bottle cap 300, respectively.

[0041] The sterile quantitative eye drops bottle provided in the embodiment of the present application prevents bacteria in the outside air from entering the eye drops in the bottle body 100, achieves sterile preservation of the eye drops without antibacterial agents, and ensures that the flow rate of eye drops dropped into the eyes can be kept constant each time.

[0042] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other. Each embodiment focuses on the differences from other embodiments.

[0043] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit the present application. Although the present application has been described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some or all of the technical features therein can be replaced by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the present application. Industrial Applicability

[0044] The bottle body 100 is provided with a fixing groove 111; the support member 200 includes a connecting tube 210 and a first clamping portion 220; the first clamping portion 220 is arranged on the outer wall of the connecting tube 210 and is clamped in the fixing groove 111; the connecting tube 210 is connected to the core column 400. The above structure can quickly connect the bottle body 100 and the support member 200, which facilitates the assembly and production of the sterile quantitative eye drops bottle. The bottle body 100 and the support member 200 are connected in an integral manner, threadedly, or adhesively. When the bottle cap 300 switches between the first station and the second station, one end of the shielding cover 600 slides relative to the bottle cap 300 and maintains a seal to prevent external dust from entering between the shielding cover 600 and the bottle cap 300. When the amount of eye drops in bottle 100 decreases, outside air enters the inner cavity of bottle 100 through balancing hole 450 and waterproof breathable membrane 700, thereby maintaining air pressure balance inside and outside bottle 100. This allows the eye drops in bottle 100 to flow smoothly under the action of gravity without squeezing bottle 100, and without causing significant deformation of bottle 100. The sterile quantitative eye drops bottle provided in the embodiment of the present application prevents bacteria from the outside air from entering the eye drops in bottle 100, achieves sterile storage of eye drops without the need for antibacterial agents, and ensures that the flow rate of eye drops each time they are instilled into the eye is maintained constant.

Claims

1. A sterile quantitative eye drops bottle, characterized in that: include: Bottle (100); A support member (200) mounted on the bottle mouth of the bottle body (100) and communicating with the inner cavity of the bottle body (100); A bottle cap (300) provided with a dripping port (310), connected to the bottle body (100), having a first accommodating cavity (320) and a second accommodating cavity (330) on its inner side, and configured to slide and switch between a first station and a second station under the action of an external force; and A core column (400), one end of which is connected to the support member (200), and the other end of which blocks the dripping port (310) when the bottle cap (300) is located at the first position, and is detached from the dripping port (310) when the bottle cap (300) is located at the second position; When the bottle cap (300) is located at the first station, the stem (400) blocks the first accommodating cavity (320) and the second accommodating cavity (330); when the bottle cap (300) is located at the second station, the second accommodating cavity (330) is communicated with the dripping port (310), the stem (400) isolates the first accommodating cavity (320) and the second accommodating cavity (330), and the first accommodating cavity (320) is communicated with the support member (200).

2. The sterile quantitative eye drops bottle according to claim 1, characterized in that: The core column (400) comprises a column body (410) and a first petal body (420) and a second petal body (430) arranged at intervals outside the column body (410); One end of the column (410) is connected to the support member (200), and the other end of the column (410) extends out of the bottle cap (300) through the dripping port (310); The bottle cap (300) comprises a cap body (340) and a third petal body (350), a fourth petal body (360) and a slide cylinder (370) which are arranged at intervals on the inner wall of the cap body (340); The inner wall of the sliding cylinder (370) is slidably connected to the outer wall of the support member (200) and is sealed; The inner side of the third petal (350) is connected to the slide (370), and is configured to fit with the first petal (420) when the bottle cap (300) is located at the first station; the fourth petal (360) is configured to fit with the second petal (430) when the bottle cap (300) is located at the first station, and to fit with the first petal (420) when the bottle cap (300) is located at the second station.

3. The sterile quantitative eye drops bottle according to claim 2, characterized in that: The first petal body (420) and the second petal body (430) are inclined from the inside to the outside in a direction close to the end of the stem (400) for sealing the dripping port (310); The third petal body (350) and the fourth petal body (360) are inclined from outside to inside in a direction away from the dripping port (310).

4. The sterile quantitative eye drops bottle according to claim 2, characterized in that: The core column (400) further includes an annular boss (440); The annular boss (440) is arranged on the column (410) and is located outside the bottle cap (300), and is configured to be in close contact with the edge of the dripping port (310) to block the dripping port (310) when the bottle cap (300) is located at the first working position.

5. The sterile quantitative eye drops bottle according to claim 1, characterized in that: The bottle body (100) is provided with a fixing groove (111); The support member (200) comprises a connecting tube (210) and a first clamping portion (220); The first clamping portion (220) is arranged on the outer wall of the connecting tube (210) and is clamped in the fixing groove (111); The core column (400) is connected to the connecting tube (210).

6. The sterile quantitative eye drops bottle according to claim 5, characterized in that: The support member (200) further comprises a second clamping portion (230) disposed in the connecting tube (210); One end of the core column (400) is clamped to the second clamping portion (230).

7. The sterile quantitative eye drops bottle according to claim 1, characterized in that: Also includes: The elastic member (500) has two ends respectively connected to the bottle body (100) and the bottle cap (300), and is configured to increase elastic potential energy when the bottle cap (300) moves in a direction approaching the bottle body (100).

8. The sterile quantitative eye drops bottle according to claim 7, characterized in that: Also includes: The shielding cover (600) is located outside the elastic member (500), one end of which is fixed to the bottle body (100), and the other end of which is slidably connected to and sealed against the outer wall of the bottle cap (300).

9. The sterile quantitative eye drops bottle according to claim 7, characterized in that: Also includes: A limiting assembly (800), comprising a first limiting portion (810) and a second limiting portion (820); The first limiting portion (810) is provided on the bottle cap (300); and the second limiting portion (820) is provided on the bottle body (100) and is configured to prevent the bottle cap (300) from being separated from the bottle body (100) through the first limiting portion (810).

10. The sterile quantitative eye drops bottle according to claim 1, characterized in that: Also includes: A waterproof and breathable membrane (700) installed in the support member (200); A balancing through hole (450) is provided inside the core column (400), and the balancing through hole (450) is connected to the inner cavity of the bottle body (100) via the waterproof breathable membrane (700).

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