Ophthalmic solution storage bottle

Abstract

The present application relates to the field of ophthalmic eye drops, and in particular to an ophthalmic liquid storage bottle, comprising a bottle body, a limiting portion, a liquid outlet head, and a liquid outlet pipeline. The bottle body is provided with a liquid outlet and a pressing portion, and the pressing portion is elastic. The limiting portion is fixed in the bottle body, and the limiting portion is used to limit the degree of deformation of the pressing portion. The liquid outlet head is connected to the bottle body, and the liquid outlet head has a spherical abutment portion, and the abutment portion is used to position on the patient's inner canthus. The liquid outlet pipeline has a spirally curved section, and the liquid outlet pipeline is passed through the liquid outlet head. One end of the liquid outlet pipeline is connected to the liquid outlet, and the other end passes through the outer surface of the abutment portion. The present application allows patients to keep their heads upright and close their eyes when using eye drops, which improves the way patients use eye drops and improves the convenience and comfort of patients when using eye drops.

Description

Technical Field

[0001] The present application relates to the field of ophthalmic eye drops, and in particular to an ophthalmic liquid storage bottle. Background Art

[0002] Eye drops generally refer to eye drops, which are one of the most commonly used drug dosage forms for ophthalmic diseases. For many eye diseases, eye drops have a direct and quick therapeutic effect.

[0003] When using eye drops on the market, the amount and speed of eye drops squeezed out are difficult to control. Therefore, the patient needs to tilt his head back 45 degrees and open his eyes. He should slowly squeeze the eye drop bottle with one hand and pull the lower eyelid with the other hand to expand the surface area of the eye, so that the eye drops can slowly drip into the eye.

[0004] Because patients need to keep their eyes open during the eye drops application process, they are unable to accurately locate the eye drops bottle at close range and are also psychologically afraid to a certain extent, which often makes it difficult to accurately instill the eye drops. This phenomenon is more common among young children and middle-aged and elderly people, and some patients have even pricked their eyes while using eye drops.

[0005] Therefore, since the amount and speed of eye drops squeezed out each time are difficult to control, it is necessary to slowly squeeze the eye drops bottle to drip the eye drops into the open eye, which is not convenient or comfortable enough. Summary of the Invention

[0006] In order to improve the way patients use eye drops and enhance the convenience and comfort of patients when using eye drops, the present application provides an ophthalmic solution storage bottle.

[0007] The present application provides an ophthalmic solution storage bottle, which adopts the following technical solution:

[0008] An ophthalmic liquid storage bottle, comprising:

[0009] A bottle body, wherein the bottle body is provided with a liquid outlet and a pressing portion, the pressing portion is elastic, and the bottle body is used to store eye drops;

[0010] a limiting portion, fixed to the bottle body, and configured to limit the degree of deformation of the pressing portion;

[0011] The liquid outlet head is connected to the bottle body. A liquid outlet pipeline is provided in the liquid outlet head. The liquid outlet pipeline has a curved section. One end of the liquid outlet pipeline is connected to the liquid outlet, and the other end passes through the outer surface of the liquid outlet head.

[0012] By adopting the above technical solution, when using eye drops, the patient can keep their head upright or in any comfortable position and close their eyes. The discharge head is then placed close to the patient's inner canthus, which is also the inner corner of the eye, so that the outlet port of the discharge pipeline is positioned toward the inner canthus gap. The pressing portion of the bottle is then squeezed, and the eye drops in the bottle flow from the outlet port into the discharge pipeline. The curved section of the discharge pipeline lengthens the flow path of the eye drops, buffering the eye drops so that the eye drops can slowly flow from the discharge head to the inner canthus gap and ultimately into the patient's conjunctival sac.

[0013] Then, maintaining the pressure on the pressing portion, remove the discharge head from the medial canthus, and release the pressing portion. This can reduce the possibility of the discharge tube aspirating the eye drops in the conjunctival sac when the pressing portion is released. Each time the pressing portion is pressed, contact with the stopper indicates that the eye drops have been delivered. The stopper limits the deformation of the pressing portion, ensuring that the amount of eye drops delivered each time is constant.

[0014] In addition, when the amount of eye drops remaining is small, in order to fill the liquid outlet pipeline with eye drops, the bottle body needs to be slightly tilted after positioning the liquid storage bottle so that the liquid outlet end of the liquid outlet head is slightly facing downward, so that the eye drops can fill the liquid outlet pipeline, and the amount of squeezed out each time can be kept as constant as possible.

[0015] The above technical solution achieves the effect of accurately controlling the amount and speed of eye drops squeezed out each time through the mutual cooperation of the bottle body, the pressing part, the limiting part, the liquid outlet pipeline, and the liquid outlet head, so that the patient can keep his eyes closed when using the eye drops without having to tilt his head back, reducing the patient's fear when using the eye drops and improving the comfort and convenience of the patient when using the eye drops.

[0016] Optionally, the liquid outlet head is provided with an abutment portion with an arc-shaped outer surface, and the liquid outlet end of the liquid outlet pipeline passes through the outer surface of the abutment portion.

[0017] By adopting the above technical solution, when the abutment portion is positioned at the patient's inner canthus, the arc-shaped structure of the abutment portion increases the contact area with the patient's inner canthus, thereby making it easy to position the abutment portion at the patient's inner canthus. Even with a little force, it is not easy to poke the eyes, further achieving the effect of facilitating the positioning of the liquid storage bottle, and improving the convenience and safety of using eye drops.

[0018] Optionally, a one-way valve is provided on the liquid outlet pipeline, a liquid storage chamber for storing eye drops is provided in the bottle body, and the liquid storage chamber is connected to the liquid outlet; an air vent is provided on the bottle body, and the liquid storage chamber is connected to the atmosphere through the air vent.

[0019] If the above technical solution is not provided with a one-way valve, after squeezing the pressing portion to deliver liquid once, the pressing portion is released, and the pressing portion returns to its original position due to its elasticity, causing the pressure in the liquid storage chamber to decrease, resulting in negative pressure in the liquid outlet line, which can easily suck the eye drops in the patient's eye back into the liquid outlet line. Therefore, when using eye drops, the pressing portion must be released after the contact portion is separated from the patient's eye, which makes the operation inconvenient and has a certain degree of danger.

[0020] After setting the one-way valve, before pressing the pressing part, it is necessary to first block the air vent, tilt the abutting part slightly downward, and after positioning the abutting part, squeeze the pressing part to squeeze the eye drops in the liquid storage chamber into the liquid outlet pipeline. The hydraulic pressure in the liquid outlet pipeline increases, causing the one-way valve to open. After the eye drops have completed one delivery, the hydraulic pressure in the liquid outlet pipeline returns to stability, and the one-way valve is closed. After the one-way valve is closed, even if the pressing part is released, the liquid outlet pipeline will not generate a large suction force on the conjunctival sac, thereby reducing the possibility of the liquid outlet pipeline sucking out the liquid in the conjunctival sac. After the pressing is completed, the air vent is opened, and air enters the bottle body, and the pressing part is reset by elasticity.

[0021] Therefore, the provision of the one-way valve improves the convenience and safety of operation.

[0022] Optionally, a sealing plug for sealing the air vent is provided on the bottle body.

[0023] By adopting the above technical solution, the vent hole is sealed with a sealing plug before the pressing portion is pressed, thereby eliminating the need to seal the vent hole manually and further improving the convenience of operation.

[0024] Optionally, the bottle body includes a first bottle body and a second bottle body, the first bottle body is connected to the second bottle body, the pressing portion is provided on the first bottle body, an air pressure cavity is provided in the first bottle body, and the liquid storage cavity is the inner cavity of the second bottle body;

[0025] A guide sleeve is provided in the second bottle body, one end of the guide sleeve is connected to the air pressure chamber, and the other end is connected to the liquid storage chamber; a push rod is slidably provided in the guide sleeve, and one end of the push rod can be inserted into the liquid outlet.

[0026] By adopting the above technical solution, when using eye drops, the pressing part on the first bottle body is squeezed, so that the air pressure chamber in the first bottle body is compressed, thereby driving the push rod to move toward the liquid outlet. When the push rod is inserted into the liquid outlet, the push rod blocks the liquid outlet. Then the push rod continues to move, so that the eye drops in the liquid outlet pipeline generate a larger hydraulic pressure and then flush the one-way valve. When the pressing part touches the limiting part, the push rod moves to the end position. After one liquid delivery is completed, the hydraulic pressure in the liquid outlet pipeline returns to normal pressure and the one-way valve is closed. After the eye drops are delivered, the pressing part is released, and the pressing part relies on its own elasticity to reset, so that the pressure in the air pressure chamber is reduced, thereby causing the push rod to move and disengage from the liquid outlet.

[0027] Therefore, through the mutual cooperation of the first bottle body, the second bottle body, the guide sleeve and the push rod, the operation of blocking the air vent is omitted when using the eye drops, so that the operation is more convenient.

[0028] Optionally, the second bottle body is located inside the first bottle body, and the limiting portion is the outer wall of the second bottle body; an air vent is connected between the first bottle body and the second bottle body, one end of the air vent is connected to the liquid storage cavity, and the other end is passed through to the outside of the first bottle body, and the air hole is the inner cavity of the air vent; the air pressure cavity is the cavity between the inner wall of the first bottle body and the outer wall of the second bottle body.

[0029] By adopting this technical solution, the second bottle body is positioned inside the first bottle body, allowing the outer wall of the second bottle body to serve as a stopper. When the pressing portion is squeezed, it contacts the outer wall of the second bottle body, signaling the end of a single infusion. This simplifies the structure of the infusion bottle, saves space on the bottle body, and makes it more portable.

[0030] Optionally, the second bottle body is located outside the first bottle body, the limiting portion is connected to the first bottle body, the air pressure cavity is the inner cavity of the first bottle body, the air vent is opened on the second bottle body, and the liquid outlet is set on the second bottle body.

[0031] By adopting the above technical solution, when squeezing the pressing part, there is no need to block the vent hole, which simplifies the operation. Moreover, since the second bottle body is located outside the first bottle body, the overall volume of the bottle body is larger, which is convenient for holding.

[0032] Optionally, a gas-liquid separation plate is slidably provided in the liquid storage cavity, and the gas-liquid separation plate is located between the air hole and the liquid outlet.

[0033] By adopting the above technical solution, eye drops are filled in the liquid storage chamber on the side of the gas-liquid separation plate facing the liquid outlet, and the air between the gas-liquid separation plate and the one-way valve is exhausted, so that the gas-liquid separation plate is always in contact with the liquid surface of the eye drops under the action of atmospheric pressure, so that when the amount of eye drops in the liquid storage chamber does not change, the position of the gas-liquid separation plate remains unchanged.

[0034] Therefore, after each use of the eye drops, the eye drops are automatically replenished into the liquid outlet pipe without being affected by gravity. Therefore, when using the eye drops, when the remaining amount of eye drops is small, there is no need to tilt the bottle body, and only the vent hole needs to be kept open, which is more convenient to operate.

[0035] Optionally, the direction of the liquid outlet end of the liquid outlet pipeline intersects with the direction of the liquid outlet port, and the bottle body and the liquid outlet head are combined into an L shape.

[0036] By adopting the above technical solution, the L-shaped liquid storage bottle is convenient for users to hold, thereby making it convenient for patients to use eye drops in a comfortable posture.

[0037] Optionally, the liquid outlet head is detachably connected to the bottle body.

[0038] By adopting the above technical solution, when the eye drops in the bottle are used up and need to be replenished, the liquid outlet head can be separated from the bottle body to facilitate the replenishment of the eye drops. Finally, after the bottle body and the liquid outlet head are assembled together, a small amount of gas will remain between the gas-liquid separator and the one-way valve, which needs to be exhausted.

[0039] The exhaust steps are as follows: the liquid outlet needs to be set upward. At this time, the liquid falls due to gravity, causing the gas in the liquid storage chamber to rise into the liquid outlet pipeline. At this time, it is necessary to push the gas-liquid separator upward. This can be done by inflating the side of the gas-liquid separator facing the air vent or by using a long thin rod that passes through the air vent and abuts against the gas-liquid separator to drive the gas-liquid separator upward, thereby pressurizing the eye drops and flushing the one-way valve. After the air in the liquid outlet pipeline is exhausted, the gas-liquid separator is stopped from being pushed. At this time, the gas-liquid separator is under the pressure of atmospheric pressure and its position remains stable. Thus, the effect of facilitating the addition of liquid to the bottle is achieved.

[0040] Optionally, the direction of the liquid outlet end of the liquid outlet pipeline intersects with the direction of the liquid outlet port, and the bottle body and the liquid outlet head are combined into an L shape.

[0041] By adopting the above technical solution, the liquid discharge head and the bottle body are combined to form an L-shaped liquid storage bottle, which is convenient for the user to hold. Moreover, when using eye drops, if the remaining amount of eye drops is small, the eye drops can be filled into the liquid discharge pipe by gravity by keeping the bottle body upright, eliminating the need to tilt the bottle body, thereby achieving the purpose of simplifying operation.

[0042] Optionally, the limiting portion is a limiting plate, the limiting plate is fixed to the bottle body, and the pressing portion contacts the limiting plate after being pressed.

[0043] By adopting the above technical solution, the deformation degree of the pressing portion is limited by the limiting plate, thereby facilitating the control of the amount of eye drops squeezed out each time.

[0044] Optionally, a sealing cover is provided on the liquid outlet head.

[0045] By adopting the above technical solution, the sealing cover protects the liquid outlet head, thereby improving the cleanliness of the liquid outlet head when the eye drops are stored.

[0046] Optionally, the sealing cover is filled with a sterile sponge block.

[0047] By adopting the above technical solution, the disinfection sponge block can disinfect the liquid outlet head, further improving the cleanliness of the liquid outlet head and reducing the risk of eye infection in patients when using eye drops.

[0048] Optionally, the curved section of the liquid outlet pipeline is spiral or snake-shaped.

[0049] By adopting the above technical solution, when squeezing out the eye drops, the spiral or snake-shaped liquid outlet pipe is convenient for buffering the eye drops, thereby slowing down the flow rate of the eye drops when squeezing out, and facilitating the delivery of the eye drops to the patient's conjunctival sac.

[0050] Optionally, the liquid outlet pipeline is a silver pipeline.

[0051] By adopting the above technical solution, silver has a bactericidal function, so that when the eye drops are not in use, the liquid outlet pipeline can store and sterilize the eye drops.

[0052] Optionally, the inner diameter of the liquid outlet end of the liquid outlet pipeline gradually decreases along the extrusion direction of the eye drops.

[0053] By adopting the above technical solution, the outflow diameter of the eye drops can be reduced, thereby facilitating the delivery of the eye drops into the conjunctival sac of the patient.

[0054] In summary, this application includes at least one of the following beneficial technical effects:

[0055] 1. The above technical solution achieves the effect of relatively accurate control of the amount and speed of eye drops extruded each time through the interaction of the bottle body, the pressing portion, the limiting portion, the liquid outlet pipe with a curved section, and the liquid outlet head. This allows patients to keep their eyes closed and do not need to tilt their heads when using the eye drops, reducing patients' fear of using the eye drops and improving their comfort and convenience when using the eye drops.

[0056] 2. The arc-shaped abutment portion is provided to facilitate positioning of the discharge head on the patient's medial canthus;

[0057] 3. A one-way valve is provided. When the pressing part is squeezed to deliver liquid once, the one-way valve closes. Even if the pressing part is released, the liquid outlet pipe will not generate a large suction force on the conjunctival sac, thereby reducing the possibility of the liquid outlet pipe sucking out the liquid in the conjunctival sac, improving the safety and convenience of operation;

[0058] 4. Through the mutual cooperation of the first bottle body, the second bottle body, the guide sleeve and the push rod, when using the eye drops, the vent hole can be kept open at all times, eliminating the operation of blocking the vent hole and improving the convenience of operation;

[0059] 5. A gas-liquid separator is provided. When the eye drops are used, the eye drops in the liquid storage chamber are replenished into the liquid outlet tube by relying on the thrust of the atmospheric pressure on the gas-liquid separator, without considering the influence of gravity. Therefore, there is no need to tilt the bottle when the remaining amount of eye drops is insufficient, which makes operation more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] Figure 1 This is a cross-sectional view of the ophthalmic solution storage bottle of Example 1 of the present application.

[0061] Figure 2 This is a schematic diagram of the liquid outlet head of Example 1 of the present application positioned at the inner canthus of the patient.

[0062] Figure 3 This is a schematic diagram of the flow direction of the eye drops in Example 1 of the present application flowing into the conjunctival sac of the patient.

[0063] Figure 4 This is a cross-sectional view of the ophthalmic solution storage bottle of Example 2 of the present application.

[0064] Figure 5 This is a cross-sectional view of the ophthalmic solution storage bottle of Example 3 of the present application.

[0065] Figure 6 It is a cross-sectional view of the ophthalmic solution storage bottle of Example 4 of the present application.

[0066] Figure 7 It is a cross-sectional view of the ophthalmic solution storage bottle of Example 5 of the present application, used to illustrate the state when the pressing part is not squeezed.

[0067] Figure 8 It is a cross-sectional view of the ophthalmic solution storage bottle of Example 5 of the present application, used to illustrate the state after the pressing part is squeezed.

[0068] Figure 9 It is a cross-sectional view of the ophthalmic solution storage bottle of Example 6 of the present application.

[0069] Figure 10It is a cross-sectional view of the ophthalmic solution storage bottle of Example 7 of the present application.

[0070] Figure 11 It is a cross-sectional view of the ophthalmic solution storage bottle of Example 8 of the present application.

[0071] Figure 12 It is a cross-sectional view of the ophthalmic solution storage bottle of Example 9 of the present application.

[0072] Figure 13 It is a cross-sectional view of the ophthalmic solution storage bottle of Example 10 of the present application.

[0073] Figure 1 、 4 -13 The liquid outlet pipes are all drawn without cutting.

[0074] Description of reference numerals:

[0075] 1. Bottle body; 11. Liquid outlet; 12. Pressing part; 13. Eye drops; 14. Ventilation hole; 15. Sealing plug; 16. First bottle body; 161. Air pressure chamber; 17. Second bottle body; 171. Liquid storage chamber; 1711. Air chamber; 1712. Liquid chamber; 18. Ventilation tube; 19. Gas-liquid separator; 191. Limiting sleeve; 2. Limiting part; 3. Liquid outlet head; 31. Abutment part; 4. Liquid outlet pipeline; 41. One-way valve; 5. Inner canthus; 51. Eyes; 52. Nose; 6. Guide sleeve; 61. Push rod; 7. Sealing cap; 71. Disinfection sponge. DETAILED DESCRIPTION

[0076] The following is combined with Figure 1-13 This application is described in further detail.

[0077] The embodiment of the present application discloses an ophthalmic liquid storage bottle.

[0078] Example 1

[0079] Reference Figure 1 The ophthalmic liquid storage bottle includes a bottle body 1, one end of which is provided with a liquid outlet 11, and a resilient pressing portion 12 is provided on the circumferential wall of the bottle body 1. The bottle body 1 contains eye drops 13, and the eye drops 13 in the bottle body 1 can be squeezed out of the liquid outlet 11 by squeezing the pressing portion 12.

[0080] Reference Figure 1To control the amount of eye drops 13 dispensed each time, a limiting portion 2 is fixed within the bottle body 1. Limiting portion 2 is a limiting plate, which can be a porous structure. A pressing space is defined between limiting portion 2 and pressing portion 12, and this space is connected to the inner cavity of the bottle body 1. Each time pressing portion 12 is squeezed, contact with limiting portion 2 indicates that a single dose of eye drops 13 is complete. Limiting portion 2 thus limits the degree of deformation of pressing portion 12, thereby controlling the amount of eye drops 13 dispensed.

[0081] Reference Figure 1 The liquid outlet 11 of the bottle body 1 is connected to a liquid outlet head 3. An abutment portion 31 is integrally formed at the liquid outlet end of the liquid outlet head 3. The outer surface of the abutment portion 31 is arc-shaped. In this embodiment, the abutment portion 31 is spherical. A liquid outlet conduit 4 is provided within the liquid outlet head 3. One end of the liquid outlet conduit 4 is connected to the liquid outlet 11, and the other end extends to the outside of the abutment portion 31. When the eye drops 13 are extruded, the end of the liquid outlet conduit 4 that passes through the abutment portion 31 becomes the liquid outlet end. Thus, the abutment portion 31 serves as the liquid outlet end of the liquid outlet head 3. The liquid outlet end of the liquid outlet conduit 4 faces the same direction as the liquid outlet 11.

[0082] Reference Figure 2 The inner canthus 5, also known as the inner corner of the eye, is the area where the eye 51 is located near the nose 52. When using the eye drops 13, the contact portion 31 is positioned on the patient's inner canthus 5. The spherical contact portion 31 increases the contact area with the patient's inner canthus 5. Even if the user applies a little force, the contact portion 31 will not injure the eye 51, making it easier to position the contact portion 31 and, in turn, facilitate positioning of the liquid storage bottle.

[0083] Reference Figure 1 When the eye drops 13 are squeezed out, the outlet pipe 4 has a curved section in order to buffer the flow rate of the eye drops 13. The curved section of the outlet pipe 4 can be serpentine or spiral. In this embodiment, the outlet pipe 4 is spiral.

[0084] Reference Figure 1 、 Figure 3 The patient's conjunctival sac is a cavity formed by the inner conjunctiva of the upper eyelid 511, the inner conjunctiva of the lower eyelid 512, and the bulbar conjunctiva on the surface of the eyeball 513. Figure 3 The figure shows the flow direction of the eye drops 13 when the patient closes his eyes while using the eye drops 13 .

[0085] Reference Figure 1The outlet port of the liquid outlet conduit 4 is funnel-shaped, gradually decreasing in size along the direction of extrusion of the eye drops 13. This facilitates reducing the diameter of the outlet port of the eye drops 13, thereby facilitating delivery of the eye drops 13 into the patient's conjunctival sac. Due to the small diameter of the outlet port of the liquid outlet conduit 4, the eye drops 13 cannot leak out of the liquid outlet conduit 4 during storage, and must be squeezed out of the outlet port of the liquid outlet conduit 4 during use.

[0086] Reference Figure 1 In addition, the liquid outlet pipe 4 is a silver pipe. Silver has a bactericidal effect. Therefore, after each use of the eye drops 13, the spiral liquid outlet pipe 4 stores the liquid medicine and sterilizes the liquid medicine.

[0087] The implementation principle of Example 1 is as follows: when using the eye drops 13, the patient's head can be kept upright, and then the eyes are closed. The spherical liquid outlet head 3 is positioned at the inner canthus 5, so that the end of the liquid outlet pipe 4 passing through the abutment portion 31 is directed toward the gap in the inner corner of the patient's eye. Therefore, the bottle body 1 is kept horizontal during use. When the remaining amount of eye drops 13 in the bottle body 1 is insufficient, the eye drops 13 cannot be filled in the liquid outlet pipe by gravity. At this time, the bottle body 1 needs to be slightly tilted so that the liquid outlet head 3 is slightly downwardly set, and then the eye drops 13 are filled in the liquid outlet pipe 4 due to gravity. Then, the pressing part 12 is squeezed, and the spiral liquid outlet pipe 4 buffers the flow rate of the eye drops 13, so that the eye drops 13 slowly flow into the patient's conjunctival sac through the liquid outlet pipe 4.

[0088] When the pressing portion 12 feels contact with the limiting portion 2, the liquid delivery is complete. The liquid discharge head 3 is then removed from the patient's eye, and the pressing portion 12 is released, allowing it to return to its original position due to its elasticity. This improves the patient's experience of using the eye drops 13 by controlling the speed and volume of the eye drops 13. The patient no longer needs to tilt their head back or open their eyes, making use of the eye drops 13 more convenient and comfortable.

[0089] It should be noted that when using an ophthalmic liquid storage bottle, after delivering the liquid once by squeezing the pressing part 12, in order to avoid the pressure in the liquid storage chamber 171 decreasing after releasing the pressing part 12, causing the liquid outlet pipe 4 to suck back the eye drops 13 in the patient's eyes, it is necessary to separate the abutment part 31 from the patient before releasing the pressing part 12.

[0090] Example 2

[0091] Reference Figure 4Example 2 differs from Example 1 in that a one-way valve 41 is added to the liquid outlet conduit 4. The one-way conduction of the one-way valve 41 ensures that the end of the liquid outlet conduit 4 closest to the abutment portion 31 serves as the liquid outlet. A vent 14 is defined at the end of the bottle body 1, distal from the liquid outlet 11. The interior of the bottle body 1 forms a liquid storage chamber 171, which communicates with the vent 14 and the liquid outlet 11, respectively. The small diameter of the vent 14 prevents the eye drops 13 from leaking out of the vent 14 during storage.

[0092] The operating principle of Example 2 differs from that of Example 1 in that, before squeezing the pressing portion 12, the vent 14 must be manually sealed. After squeezing the pressing portion 12, the eye drops 13 in the reservoir 171 are squeezed into the outlet conduit 4, increasing the hydraulic pressure within the outlet conduit 4 and thereby opening the one-way valve 41. After the eye drops 13 have been delivered once, the hydraulic pressure within the outlet conduit 4 returns to a stable state, and the one-way valve 41 closes.

[0093] Once the one-way valve 41 is closed, even if the pressing portion 12 is released, the liquid outlet conduit 4 will not exert significant suction on the patient's conjunctival sac, thereby reducing the possibility of the liquid outlet conduit 4 aspirating the liquid within the conjunctival sac. After the pressing is completed, the air vent 14 opens, allowing air to enter the bottle body 1. When the pressing portion 12 is released, it elastically returns to its original position. This eliminates the need to consider the timing of releasing the pressing portion 12, improving operational safety and convenience.

[0094] In addition, the one-way valve 41 increases the resistance to liquid outflow, making it easier for the patient to squeeze the pressing part, thereby facilitating operation.

[0095] Example 3

[0096] Reference Figure 5 The difference between Example 3 and Example 2 is that a sealing plug 15 is provided at the air vent 14 , and the sealing plug 15 is used to seal the air vent 14 .

[0097] The implementation principle of Example 3 is different from that of Example 2 in that: when using the eye drops 13, there is no need to manually block the vent holes 14. The opening and closing of the vent holes 14 can be controlled by plugging and unplugging the sealing plug 15, which improves the convenience of operation.

[0098] Example 4

[0099] Reference Figure 6 The difference between Example 4 and Example 2 is that a gas-liquid separator 19 is provided in the bottle body 1, and the gas-liquid separator 19 is located between the air vent 14 and the liquid outlet 11. The gas-liquid separator 19 is always in contact with the liquid surface of the eye drops 13 under the action of atmospheric pressure.

[0100] Reference Figure 6The gas-liquid separation plate 19 divides the liquid storage chamber 171 into an air chamber 1711 and a liquid chamber 1712 . The side of the gas-liquid separation plate 19 facing the air vent 14 is the gas chamber 1711 , and the side of the gas-liquid separation plate 19 facing the liquid outlet 11 is the liquid chamber 1712 .

[0101] Reference Figure 6 The bottle body 1 and the liquid outlet head 3 are detachably connected. When the eye drops 13 need to be added to the bottle body 1, the bottle body 1 and the liquid outlet head 3 are disassembled, the eye drops 13 are added to the bottle body 1, and then the bottle body 1 and the liquid outlet head 3 are installed together. There is less air in the bottle body 1 or the liquid outlet pipe 4, which needs to be exhausted.

[0102] The exhaust step is: set the liquid outlet head 3 upward, and the bottle body 1 is located below the liquid outlet head 3. At this time, the eye drops 13 fall due to gravity, and the gas in the liquid storage chamber 171 rises to the liquid outlet pipeline 4. At this time, it is necessary to push the gas-liquid separator 19 to move upward. The gas-liquid separator 19 can be driven to move upward by inflating the air into the air chamber 1711 through the air vent 14 or by using a long thin rod passing through the air vent 14 and then abutting against the gas-liquid separator 19, until the air in the liquid outlet pipeline 4 is pushed open the one-way valve 41 to discharge the gas from the liquid outlet pipeline 4. At this time, the gas-liquid separator 19 is always in contact with the liquid surface of the eye drops 13 under the action of atmospheric pressure, so that when the amount of eye drops 13 in the liquid storage chamber 171 does not change, the position of the gas-liquid separator 19 remains unchanged.

[0103] The implementation principle of Example 4 is different from that of Example 2 in that the eye drops 13 are always filled with the liquid outlet pipe due to the push of the gas-liquid separator 19, so when the remaining amount of eye drops 13 in the bottle body 1 is small, there is no need to tilt the bottle body 1, thereby achieving the purpose of easy operation.

[0104] Example 5

[0105] Reference Figure 7 The difference between Example 5 and Example 2 is that the structure of the bottle body 1 is different.

[0106] Reference Figure 7 The bottle body 1 includes a first bottle body 16 and a second bottle body 17. The second bottle body 17 is located inside the first bottle body 16 and the two are coaxially arranged. The pressing portion 12 is arranged on the circumferential wall of the first bottle body 16. The second bottle body 17 is made of a hard material. In this case, the limiting portion 2 is the outer wall of the second bottle body 17.

[0107] Reference Figure 7 The liquid storage cavity 171 is the inner cavity of the second bottle body 17. A vent tube 18 is fixedly connected between the first bottle body 16 and the second bottle body 17. One end of the vent tube 18 is connected to the liquid storage cavity 171, and the other end is extended to the outside of the first bottle body 16 and connected to the atmosphere. In this case, the vent hole 14 is the inner cavity of the vent tube 18.

[0108] Reference Figure 7 The cavity between the inner wall of the first bottle body 16 and the outer wall of the second bottle body 17 is an air pressure cavity 161 , and the air pressure cavity 161 is filled with air.

[0109] Reference Figure 7 The liquid outlet 11 can be provided on the first bottle body 16 or on the second bottle body 17 , and it is only necessary to connect the liquid outlet 11 with the liquid storage cavity 171 . The liquid outlet 11 in embodiment 5 is provided on the second bottle body 17 .

[0110] Reference Figure 7 A guide sleeve 6 is fixed in the second bottle body 17. The guide sleeve 6 is coaxial with the second bottle body 17. One end of the guide sleeve 6 is connected to the air pressure chamber 161, and the other end is connected to the liquid storage chamber 171. A push rod 61 is slidably arranged in the guide sleeve 6, and the push rod 61 blocks the air pressure chamber 161 from the liquid storage chamber 171.

[0111] Reference Figure 8 By squeezing the pressing portion 12, the push rod 61 can be extended from the guide sleeve 6 and inserted into the liquid outlet 11. When the push rod 61 is inserted into the liquid outlet 11, the push rod 61 fits against the inner wall of the liquid outlet 11, thereby blocking the liquid outlet 11.

[0112] The operating principle of Example 5 differs from that of Example 2 in that squeezing the pressing portion 12 compresses the air pressure chamber 161, thereby driving the push rod 61 toward the liquid outlet 11. When the push rod 61 is inserted into the liquid outlet 11, the push rod 61 blocks the liquid outlet 11. The push rod 61 continues to move within the liquid outlet 11, thereby generating hydraulic pressure in the eye drops 13 in the liquid discharge line 4, thereby opening the one-way valve 41.

[0113] When the pressing portion 12 contacts the stopper 2, the push rod 61 moves to its end point. When the hydraulic pressure in the outlet pipe 4 returns to normal, the one-way valve 41 closes. After the eye drops 13 are delivered, the pressing portion 12 is released. The pressing portion 12 returns to its original position due to its elasticity, reducing the pressure in the air pressure chamber 161. The push rod 61 then returns to its original position, disengaging from the outlet 11. The eye drops 13 in the liquid storage chamber 171 are replenished to the outlet pipe 4 due to gravity.

[0114] Therefore, the advantage of Example 5 over Example 2 is that when squeezing the pressing portion 12, there is no need to block the vent 14. The eye drops can be squeezed out by simply keeping the vent 14 open, which makes the operation more convenient.

[0115] Since the first bottle body 16 and the second bottle body 17 are a nested structure, the space occupied by the bottle body 1 is reduced, making it easier to carry.

[0116] Example 6

[0117] Reference Figure 9 Example 6 differs from Example 5 in that a gas-liquid separator 19 is added to the second bottle body 17, located between the air vent 14 and the liquid outlet 11. A through-hole is formed in the center of the gas-liquid separator 19, through which the guide sleeve 6 is inserted. Due to atmospheric pressure, the gas-liquid separator 19 always adheres to the liquid level of the eye drops 13. The operating principle of the gas-liquid separator 19 is the same as that of the gas-liquid separator 19 in Example 4.

[0118] Therefore, the advantage of Example 6 over Example 5 is that when the remaining amount of eye drops 13 is insufficient, there is no need to tilt the bottle body 1. The pushing action of the gas-liquid separator 19 ensures that the liquid outlet pipeline is always filled with eye drops 13, which is more convenient to operate.

[0119] Example 7

[0120] Reference Figure 10 Example 7 differs from Example 5 in that the second bottle body 17 is located outside the first bottle body 16. A vent 14 is provided on the second bottle body 17, connecting the liquid storage chamber 171 to the atmosphere. The air pressure chamber 161 is the inner cavity of the first bottle body 16. The limiting portion 2 is a porous limiting plate fixed within the first bottle body 16.

[0121] Reference Figure 10 The first bottle body 16 and the second bottle body 17 are coaxially arranged, and the first bottle body 16 and the second bottle body 17 are fixedly connected.

[0122] The advantage of Example 7 over Example 5 is that the length of the bottle body 1 is lengthened, making it easier to hold.

[0123] Example 8

[0124] Reference Figure 11 The difference between Example 8 and Example 7 is that a gas-liquid separator 19 is added to the second bottle body 17. The working principle of the gas-liquid separator 19 in Example 8 is the same as that of the gas-liquid separator 19 in Example 7.

[0125] Reference Figure 11 The outer diameters of the first bottle body 16 and the second bottle body 17 are equal, so the air hole 14 is set on the circumferential wall of the second bottle body 17. Therefore, when the liquid storage bottle is vented, air needs to be injected into the air chamber 1711 through the air hole 14, thereby pushing the gas-liquid separator 19 to move.

[0126] Reference Figure 11To prevent the gas-liquid separator 19 from blocking the vent 14, a limiting sleeve 191 is fixedly connected to the side of the gas-liquid separator 19 facing away from the liquid outlet 11, and the guide sleeve 6 is inserted into the limiting sleeve 191. The limiting sleeve 191 supports the guide sleeve 6, and the guide sleeve 6 guides the limiting sleeve 191.

[0127] Therefore, when the gas-liquid separator 19 moves away from the liquid outlet 11 to the extreme position, the limiting sleeve 191 contacts the inner bottom wall of the second bottle body 17, and at this time the gas-liquid separator 19 still has a distance from the air vent 14, thereby reducing the possibility of the gas-liquid separator 19 blocking the air vent 14.

[0128] The advantage of Example 8 over Example 6 is that when the remaining amount of eye drops 13 is insufficient, there is no need to tilt the bottle body 1. The liquid outlet pipe 4 can always be filled with eye drops 13 through the pushing action of the gas-liquid separator 19, which is more convenient for operation.

[0129] Example 9

[0130] Reference Figure 12 The difference between Example 9 and Example 8 is that the outer diameter of the first bottle body 16 is set to be smaller than the outer diameter of the second bottle body 17, thereby reserving the opening position of the air vent 14 so that the axis of the air vent 14 points to the gas-liquid separator 19. The limiting sleeve 191 is omitted (refer to Figure 11 ) settings.

[0131] Therefore, when the liquid storage chamber 171 and the liquid outlet pipeline 4 are exhausted, air can be injected into the air chamber 1711 through the air vent 14 to push the gas-liquid separator 19 to move, or a long thin rod can be used to pass through the air vent 14 to push the gas-liquid separator 19 to move.

[0132] Example 10

[0133] Reference Figure 13 The difference between Example 10 and Example 6 is that the liquid outlet end of the liquid outlet pipe 4 is perpendicular to the direction of the liquid outlet port 11, and a sealing cover 7 is added to the liquid outlet head.

[0134] Reference Figure 13 The combination of the bottle body 1 and the liquid outlet head 3 makes the overall liquid storage bottle L-shaped, which is convenient for users to hold, improves the convenience of operation, and makes it convenient for patients to use eye drops in any comfortable posture.

[0135] Reference Figure 13 The sealing cover 7 is rotatably connected to the liquid outlet head 3. The sealing cover 7 is filled with a disinfection sponge block 71. The disinfection sponge block 71 is a sponge soaked in disinfectant.

[0136] Reference Figure 13The portion where the sealing cap 7 connects to the liquid outlet head 3 is provided with a torsion spring (not shown in the drawings). Therefore, after each use of the eye drops 13, the sealing cap 7 is released and automatically covers the liquid outlet head 3 due to its elasticity, so that the abutting portion 31 contacts the disinfecting sponge block 71, thereby achieving the effect of disinfecting the abutting portion 31 and improving the safety of the patient during use.

[0137] Alternatively, any of the solutions in Examples 1-9 can be configured as an L-shaped liquid storage bottle for easier handholding. The L-shaped liquid storage bottle, when used in Examples 1, 2, 3, 5, and 6, can also achieve the following benefits: when holding the bottle 1, simply hold the bottle 1 facing upward, maintaining the bottle 1 in an upright position. This facilitates positioning the liquid outlet head 3 and allows the eye drops 13 to fall under gravity and fill the liquid outlet conduit 4. Consequently, there is no need to tilt the bottle 1 when the remaining amount of eye drops 13 is insufficient, simplifying operation.

[0138] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An ophthalmic liquid storage bottle, characterized in that: include: A bottle body (1), wherein the bottle body (1) is provided with a liquid outlet (11) and a pressing portion (12), wherein the pressing portion (12) is elastic, and the bottle body (1) is used for storing eye drops (13); A limiting portion (2) is fixed to the bottle body (1), and the limiting portion (2) is used to limit the degree of deformation of the pressing portion (12); A liquid outlet head (3) is connected to the bottle body (1), a liquid outlet pipeline (4) is provided in the liquid outlet head (3), the liquid outlet pipeline (4) has a curved section, one end of the liquid outlet pipeline (4) is connected to the liquid outlet (11), and the other end is passed through the outer surface of the liquid outlet head (3), a sealing cover (7) is provided on the liquid outlet head (3), and a torsion spring is provided at the portion where the sealing cover (7) is connected to the liquid outlet head (3); The liquid outlet pipeline (4) is provided with a one-way valve (41); a liquid storage cavity (171) for storing eye drops (13) is provided in the bottle body (1); the liquid storage cavity (171) is communicated with the liquid outlet (11); an air vent (14) is provided on the bottle body (1); the liquid storage cavity (171) is communicated with the atmosphere through the air vent (14); The bottle body (1) comprises a first bottle body (16) and a second bottle body (17); the first bottle body (16) is connected to the second bottle body (17); the pressing portion (12) is provided on the first bottle body (16); an air pressure cavity (161) is provided in the first bottle body (16); and the liquid storage cavity (171) is an inner cavity of the second bottle body (17); A guide sleeve (6) is provided in the second bottle body (17), one end of the guide sleeve (6) is connected to the air pressure chamber (161), and the other end is connected to the liquid storage chamber (171); a push rod (61) is slidably provided in the guide sleeve (6), and one end of the push rod (61) can be inserted into the liquid outlet (11); A gas-liquid separation plate (19) is slidably provided in the liquid storage cavity (171), and the gas-liquid separation plate (19) is located between the air vent (14) and the liquid outlet (11).

2. The ophthalmic solution storage bottle according to claim 1, characterized in that: The liquid outlet head (3) is provided with an abutment portion (31) having an arc-shaped outer surface, and the liquid outlet end of the liquid outlet pipeline (4) is connected to the outer surface of the abutment portion (31).

3. The ophthalmic solution storage bottle according to claim 1, characterized in that: The second bottle body (17) is located inside the first bottle body (16), and the limiting portion (2) is the outer wall of the second bottle body (17); a ventilation tube (18) is connected between the first bottle body (16) and the second bottle body (17), one end of the ventilation tube (18) is connected to the liquid storage cavity (171), and the other end is passed through to the outside of the first bottle body (16); the ventilation hole (14) is the inner cavity of the ventilation tube (18); the air pressure cavity (161) is the cavity between the inner wall of the first bottle body (16) and the outer wall of the second bottle body (17).

4. The ophthalmic solution storage bottle according to claim 1, characterized in that: The second bottle body (17) is located outside the first bottle body (16), the limiting portion (2) is connected to the inside of the first bottle body (16), the air pressure cavity (161) is the inner cavity of the first bottle body (16), the air vent (14) is provided on the second bottle body (17), and the liquid outlet (11) is provided on the second bottle body (17).

5. The ophthalmic solution storage bottle according to claim 1, characterized in that: The direction of the liquid outlet end of the liquid outlet pipeline (4) intersects with the direction of the liquid outlet port (11), and the bottle body (1) and the liquid outlet head (3) are combined into an L shape.

6. The ophthalmic solution storage bottle according to claim 1, characterized in that: The liquid outlet head (3) is detachably connected to the bottle body (1).

7. The ophthalmic solution storage bottle according to any one of claims 1 to 5, characterized in that: The direction of the liquid outlet end of the liquid outlet pipeline (4) intersects with the direction of the liquid outlet port (11), and the bottle body (1) and the liquid outlet head (3) are combined into an L shape.

8. The ophthalmic liquid storage bottle according to any one of claims 1, 2 and 4, characterized in that: The limiting portion (2) is a limiting plate, the limiting plate is fixed to the bottle body (1), and the pressing portion (12) contacts the limiting plate after being pressed.

9. The ophthalmic solution storage bottle according to claim 1, characterized in that: The sealing cover (7) is filled with a sterile sponge block (71).

10. The ophthalmic solution storage bottle according to any one of claims 1 to 5, characterized in that: The curved section of the liquid outlet pipeline (4) is in a spiral or snake shape.

11. The ophthalmic solution storage bottle according to any one of claims 1 to 5, characterized in that: The liquid outlet pipeline (4) is a silver pipeline.

12. The ophthalmic solution storage bottle according to any one of claims 1 to 5, characterized in that: The inner diameter of the liquid outlet end of the liquid outlet pipeline (4) gradually decreases along the extrusion direction of the eye drops (13).

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