An anti-pollution medical eye drop administration method and medicine bottle

Abstract

The present invention relates to an anti-pollution medical eye drop administration method and medicine bottle, which are characterized in that: an eye drop medicine bottle with an indirect compression liquid administration structure is provided. The eye drop medicine bottle includes a liquid medicine loading part and an auxiliary eye drop part, and the two parts can be quickly assembled and disassembled; the liquid medicine loading part is used for loading and storing eye drops, and the auxiliary eye drop part is provided with a first cavity A and a second cavity B. The first cavity A is provided with a one-way air inlet hole and a first driving piston, and the first driving piston is connected to an external compression unit to push the second driving piston in the second cavity B to move towards the liquid medicine loading part; through the conduction of force, the administration piston is pushed to move, so that the eye drops move towards the drip hole and finally flow out unidirectionally from the drip hole, forming a piston pressing and pushing type liquid medicine extrusion channel, and forming an indirect compression liquid administration structure. It has substantial features and remarkable progress such as accurate medication dosage, prevention of liquid medicine waste and deterioration, and meeting the requirements of aseptic medication in the eye.

Description

Technical Field

[0001] The present invention relates to an anti-pollution medical eye drop administration method and a medicine bottle. It belongs to the technical field of ophthalmic medical devices and equipment. Background Art

[0002] Currently, due to the widespread use of electronic products, people are spending more and more time staring at display screens, resulting in an increasing number of cases of eye discomfort or eye diseases. And using eye drops to drip into the eyes is a common way to treat eye discomfort or eye diseases.

[0003] In the prior art, most eye drop liquids are contained in flexible plastic bottles, and the administration method is to control the liquid drops to drip out from the liquid outlet by directly squeezing the flexible plastic bottle. If the user fails to control the pressing force well, it will cause the liquid drops to be too large or too small, or the liquid medicine to flow out suddenly, resulting in problems such as inaccurate medication dosage and waste of liquid medicine. In addition, the air inside and outside the eye drop bottle of the prior art circulates before and after use, causing the air in the use environment to enter the medicine bottle. Since there are substances such as dust, microorganisms, and water vapor in the environmental air, the eye drops will be polluted, resulting in oxidation and deterioration of the liquid medicine, and there are problems such as easy deterioration of the liquid medicine and inability to meet the requirements of aseptic medication in the eye. Although adding preservatives to the liquid medicine can solve the problem of liquid medicine deterioration to a certain extent, since preservatives have varying degrees of irritation to the eyes, eye drops containing preservatives are not suitable for long-term use. In order to avoid the problems of preservatives and pollution, some people have set up disposable small-dose liquid medicine bottles. Although they are relatively convenient to use, they will also cause waste of liquid medicine (the packaging amount usually far exceeds the usage amount). In addition, the large use of disposable plastic eye drop bottles will generate a lot of plastic waste and increase the packaging cost of pharmaceutical companies, which is very unfavorable to the sustainable development of the environmental ecology. In addition to eye drops, for sublingual drip treatment of allergens for allergic diseases, there are also problems of anti-pollution and anti-deterioration of the preparation. Summary of the Invention

[0004] One of the purposes of the present invention is to solve the problems existing in the eye drop bottles of the prior art, such as inaccurate medication dosage, resulting in waste of medicine, easy deterioration of the liquid medicine, inability to meet the requirements of aseptic medication in the eye, and easy environmental pollution, and to provide an anti-pollution medical eye drop administration method. It has outstanding substantial characteristics and remarkable technical progress, such as accurate medication dosage, prevention of waste of liquid medicine, prevention of deterioration of liquid medicine, meeting the requirements of aseptic medication in the eye, and prevention of environmental pollution.

[0005] The second object of the present invention is to solve the problems existing in the existing eye drops bottles, such as inaccurate drug dosage, resulting in waste of medicine and easy deterioration of the liquid medicine, inability to meet the requirements of aseptic drug use in the eye and easy environmental pollution. A contamination-proof medical eye drop administration bottle is provided. It has outstanding substantial features and significant technological progress, such as accurate drug dosage, prevention of liquid medicine waste and prevention of liquid medicine deterioration, meeting the requirements of aseptic drug use in the eye and prevention of environmental pollution.

[0006] One object of the present invention can be achieved by adopting the following technical solutions:

[0007] A contamination-proof medical eye drop administration method, characterized in that:

[0008] 1) An eye drops bottle with an indirect compression liquid delivery structure is provided. The eye drops bottle includes a liquid medicine loading part and an auxiliary eye drop part, and the two parts can be quickly assembled and disassembled;

[0009] 2) The liquid medicine loading part is used to load and store eye drops. The bottle body of this part is provided with scales, and the head is provided with a drip hole. A latex cap is provided at the drip hole to form a nipple covering, and the drip hole is sealed by the rubber cap to prevent air from entering; a medicine delivery piston is provided at the tail of this part, and the piston rod of the medicine delivery piston is connected to the drive output end of the auxiliary eye drop part;

[0010] 3) The auxiliary eye drop part is provided with a first cavity A and a second cavity B. The first cavity A is provided with a one-way air inlet hole. A first drive piston is provided in the first cavity A. The first drive piston is connected to an external compression unit. By pressing the external compression unit from the outside to the inside, the gas in the first cavity A is compressed to push the second drive piston in the second cavity B to move towards the liquid medicine loading part; the piston rod of the second drive piston is linked to the piston rod of the medicine piston;

[0011] 4) Through the conduction of force, the medicine delivery piston is pushed to move, so that the eye drops move towards the drip hole and finally flow out unidirectionally from the drip hole, forming a piston pressing and pushing type liquid medicine extrusion channel and forming an indirect compression liquid delivery structure.

[0012] Another object of the present invention can also be achieved by adopting the following technical solutions:

[0013] Furthermore, the latex cap is a movable cover. By setting a movable cover at the liquid outlet hole, it is possible to prevent the environmental air from flowing back and contaminating the liquid medicine after eye drops are administered.

[0014] Furthermore, the pressing handle constitutes an active pressing type switch, which can prevent accidental touch and accidental pushing, resulting in loss of liquid medicine.

[0015] Furthermore, by setting a latex cap and leaving no space for air, the liquid medicine is prevented from contacting air during storage and use, thereby preventing the interaction between gas and liquid and the growth of air microorganisms, and keeping the properties and components of the eye drops unchanged.

[0016] Furthermore, an indirect drive by a secondary drive piston is utilized. Through an extrusion-compression gas micro transmission structure, specifically, the user presses an external compression unit to indirectly drive the dosing piston in the liquid medicine loading part, so as to flexibly control the dripping speed and number of drops of the liquid medicine. Relaxing the handle of the external compression unit or pressing the press-type pressure relief port provided at the auxiliary eye drop structure can quickly terminate the dripping of the liquid medicine.

[0017] The second object of the present invention can be achieved by adopting the following technical solutions:

[0018] An anti-pollution medical eye drop bottle, the structural characteristics of which are as follows: it includes a liquid medicine storage structure and an auxiliary eye drop structure, and the liquid medicine storage structure and the auxiliary eye drop structure are connected into a whole through an easily detachable connection structure; a dropper head is provided at the top of the liquid medicine storage structure, and a semi-fixed latex cap is provided at the dropper head to form a dropper head closed structure; a dosing piston is provided at the tail end of the liquid medicine storage structure, and the dosing piston is connected to the drive output end of the auxiliary eye drop structure through a push handle; a first cavity A and a second cavity B are provided inside the auxiliary eye drop structure, and the first cavity A and the second cavity B are vertically arranged and communicate with each other; the first cavity A is provided with a one-way air inlet hole and a first drive piston, and the first drive piston is connected with a compression unit to form a press-type drive structure; a second drive piston is provided in the second cavity B, and the piston rod of the second drive piston is the drive output end of the auxiliary eye drop structure and is connected with the push handle; the second drive piston makes a reciprocating motion under the drive of the change in the air pressure in the first cavity A to form a pneumatic drive structure; an indirectly compressive liquid medicine supply structure is formed.

[0019] The second object of the present invention can also be achieved by adopting the following technical solutions:

[0020] Furthermore, an anti-misoperation plug is provided at the compression unit to form an anti-leakage structure to prevent the liquid medicine from leaking due to misoperation.

[0021] Furthermore, the compression unit is composed of a compression spring and a pressing handle. One end of the compression spring is fixedly connected to one end of the pressing handle, and the other end is fixed in the auxiliary eye drop structure to form an elastic reset structure; the other end of the pressing handle is movably connected to the first drive piston to form a piston drive structure. The pressing spring is used to keep the pressing handle return to its original position; the pressing handle is movably connected to the first drive piston; by controlling the number and depth of pressing of the pressing handle, the number of drops flowing out and the amount of liquid flowing out are controlled.

[0022] Further, a press-type pressure relief port is provided at the auxiliary drug dripping structure to form a pressure relief structure for the first cavity A so that the pressure in the first cavity A can rapidly drop after the press-type pressure relief port is activated, and the piston and the handle in the second cavity B will stop advancing; the press-type pressure relief port is composed of a press-type piston and a spring. That is, when the auxiliary drug dripping structure needs to be reused, the pressure relief port helps to manually add lubricating components to maintain the airtightness of the first cavity A and the second cavity B when replacing another new liquid medicine storage structure after using up the liquid medicine in the liquid medicine storage structure, ensuring the feasibility of reuse.

[0023] Further, the easy-to-assemble and disassemble connection structure can be composed of several spring-type protruding fixing knobs arranged outside the opening end of the auxiliary drug dripping structure and several concave points arranged at the tail of the liquid medicine storage structure. The spring-type protruding fixing knobs correspond to the concave points one by one to form a matching easy-to-assemble and disassemble connection structure. In actual use, align the liquid medicine storage structure with the auxiliary drug dripping structure and press to achieve a fixed connection. Pull it out after use.

[0024] The present invention has the following outstanding beneficial effects:

[0025] 1. The medical eye drop administration method involved in the present invention drives the administration piston to move through the conduction of force, so that the eye drops move towards the drip hole and finally flow out unidirectionally from the drip hole, forming a piston press-push type liquid medicine extrusion channel and an indirect compression type liquid medicine administration structure; using the piston press-push type to extrude the liquid medicine and cooperating with the unidirectional outflow of the liquid outlet hole can effectively avoid the backflow of environmental air to contaminate the liquid medicine after dropping the medicine. Therefore, it can solve the problems existing in the existing eye drop bottles, such as inaccurate medication dosage, resulting in waste of medicine and easy deterioration of the liquid medicine, inability to meet the requirements of aseptic medication in the eye and easy environmental pollution, etc., and has the outstanding substantive features and remarkable technical progress of accurate medication dosage, preventing waste of liquid medicine and preventing deterioration of liquid medicine, meeting the requirements of aseptic medication in the eye and preventing environmental pollution.

[0026] 2. The medical eye drop bottle involved in the present invention includes a liquid medicine storage structure and an auxiliary eye drop structure. The liquid medicine storage structure and the auxiliary eye drop structure are connected into an integral whole through a detachable connection structure; a dropper head is provided at the top of the liquid medicine storage structure, and a semi-fixed latex cap is provided at the dropper head to form a dropper head sealing structure; a dosing piston is provided at the tail end of the liquid medicine storage structure, and the dosing piston is connected to the driving output end of the auxiliary eye drop structure through a push handle; a first cavity A and a second cavity B are provided inside the auxiliary eye drop structure, and the first cavity A and the second cavity B are vertically arranged and communicate with each other; the first cavity A is provided with a one-way air inlet hole and a first driving piston, and the first driving piston is connected with a compression unit to form a pressing driving structure; a second driving piston is provided in the second cavity B, and the piston rod of the second driving piston is the driving output end of the auxiliary eye drop structure and is connected with the push handle; the second driving piston makes a reciprocating motion driven by the change of the air pressure in the first cavity A to form a pneumatic driving structure; an indirect compression type liquid medicine feeding structure is formed. Therefore, it can solve the problems existing in the existing eye drop bottles in the prior art, such as inaccurate medication dosage, resulting in waste of medicine and easy deterioration of the liquid medicine, inability to meet the requirements of aseptic medication in the eye and easy causing environmental pollution, etc., and has the outstanding substantive features and remarkable technical progress of accurate medication dosage, preventing waste of liquid medicine and preventing deterioration of the liquid medicine, meeting the requirements of aseptic medication in the eye and preventing environmental pollution, etc.

[0027] 3. Since the present invention is provided with a two-stage driving piston structure to form an indirect driving auxiliary eye drop, it has the outstanding substantive features and remarkable technical progress of accurate medication dosage, good treatment effect and saving eye drops, etc.

[0028] 4. Since the present invention is provided with a structure constituting a dropper head sealing structure, it has the outstanding substantive features and remarkable technical progress of preventing the liquid medicine from contacting with air, preventing dust from entering the bottle body, protecting the liquid medicine from deterioration, etc.

[0029] 5. Since the present invention is provided with an anti-misoperation plug at the compression unit to form an anti-leakage structure to prevent the liquid medicine from leaking due to misoperation, it has the outstanding substantive features and remarkable technical progress of saving eye drops, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a schematic structural diagram of Specific Embodiment 1 of the present invention.

[0031] Figure 2 is a schematic structural diagram of the connection part between the liquid medicine storage structure and the auxiliary eye drop structure in Specific Embodiment 1 of the present invention.

[0032] Figure 3 is a schematic structural diagram of the liquid medicine storage structure in a closed state in Specific Embodiment 1 of the present invention.

[0033] Figure 4It is a schematic structural diagram when the liquid medicine storage structure in Specific Embodiment 1 of the present invention is opened.

[0034] Figure 5 It is a schematic structural diagram when the pressure relief port in Specific Embodiment 1 of the present invention is closed.

[0035] Figure 6 It is a schematic structural diagram when the pressure relief port in Specific Embodiment 1 of the present invention is opened. Detailed implementation manners Specific Embodiment 1:

[0037] Figures 1 to 6 It constitutes Specific Embodiment 1 of the present invention.

[0038] Refer to Figure 1 , the anti-pollution medical eye drop bottle involved in this Specific Embodiment 1 includes a liquid medicine storage structure 1 and an auxiliary eye drop structure 2. The liquid medicine storage structure 1 and the auxiliary eye drop structure 2 are connected into an integral body through an easily detachable connection structure; a dropper head 1-1 is provided at the top of the liquid medicine storage structure 1, and a semi-fixed latex cap 1-4 is provided at the dropper head 1-1 to form a dropper head closed structure; a medicine delivery piston 1-3 is provided at the tail end of the liquid storage structure 1, and the medicine delivery piston 1-3 is connected to the driving output end of the auxiliary eye drop structure 2 through a push handle 1-6; a first cavity A and a second cavity B are provided inside the auxiliary eye drop structure 2, and the first cavity A and the second cavity B are vertically arranged and communicate with each other; the first cavity A is provided with a one-way air inlet hole 2-1 and a first driving piston 2-5, and the first driving piston 2-5 is connected with a compression unit 2-4 to form a pressing type driving structure; a second driving piston 2-2 is provided in the second cavity B, and the piston rod of the second driving piston 2-2 is the driving output end of the auxiliary eye drop structure 2 and is connected to the push handle 1-6; the second driving piston 2-2 makes a reciprocating motion driven by the change of the air pressure in the first cavity A to form a pneumatic driving structure; an indirect compression type liquid medicine delivery structure is formed.

[0039] In this embodiment:

[0040] An anti-misoperation plug 2-7 is provided at the compression unit 2-4 to form an anti-leakage structure to prevent the liquid medicine from leaking due to misoperation.

[0041] Refer to Figure 1 , Figure 4, the compression unit 2-4 consists of a pressing spring 2-6 and a pressing handle 2-4-1. One end of the pressing spring 2-6 is fixedly connected to one end of the pressing handle 2-4-1, and the other end is fixed in the auxiliary eye drop structure 2, forming an elastic reset structure; the other end of the pressing handle 2-4-1 is movably connected to the first driving piston 2-5, forming a piston 2-5 driving structure. By the pressing spring 2-6, the pressing handle 2-4-1 is kept in the original position; the pressing handle 2-4-1 is movably connected to the first driving piston 2-5; by controlling the number and depth of pressing the pressing handle 2-4-1, the outflow times and outflow volume of the liquid drops are controlled.

[0042] Referring to Figure 1 , Figure 5 and Figure 6 , a pressing pressure relief port 2-8 is provided at the auxiliary eye drop structure 2, and the pressing pressure relief port 2-8 consists of a pressing piston 2-8-1 and a spring 2-8-2. When the pressing piston 2-8-1 is not pressed, the pressing piston 2-8-1 is in close contact with the inner side wall of the auxiliary eye drop structure 2, and the pressing pressure relief port 2-8 is in a closed state; when the pressing piston 2-8-1 is pressed downward, the pressing piston 2-8-1 is separated from the inner side wall of the auxiliary eye drop structure 2, and the pressing pressure relief port 2-8 is in an open state, forming a first cavity A pressure relief structure so that after the pressing pressure relief port 2-8 is activated, the pressure in the first cavity A drops rapidly, and the piston and the handle in the second cavity B will stop advancing. That is, when the auxiliary eye drop structure 2 needs to be reused, the pressure relief port helps to maintain the airtightness of the first cavity A and the second cavity B when replacing another new liquid medicine storage structure 1 after using up the liquid medicine in the liquid medicine storage structure 1, and lubricating components can be manually added to ensure the feasibility of reuse. (Note: The piston 2-2 can be pulled out along the B cavity, and after being pulled out, the first cavity A and the second cavity B are in an open state).

[0043] Referring to Figure 2 , the easy-to-assemble and disassemble connection structure can be composed of three spring-type protruding fixing knobs 2-9 arranged on the outer side of the opening end of the auxiliary eye drop structure 2 and three concave points 1-7 arranged at the tail of the liquid medicine storage structure 1. The spring-type protruding fixing knobs 2-9 correspond to the concave points 1-7 one by one, forming a matching easy-to-assemble and disassemble connection structure. In actual use, the liquid medicine storage structure 1 is aligned with the auxiliary eye drop structure 2, and pressing can achieve fixed connection. After use, it can be pulled out, that is, it is convenient to only replace the liquid medicine storage structure 1 after using up the liquid medicine, and it has the characteristics and advantages of being convenient for assembly and disassembly and saving costs.

[0044] Referring to Figure 1 , Figure 3 and Figure 4 , the anti-pollution medical eye drop administration method involved in this embodiment is characterized in that:

[0045] 1) Set up an eye drop bottle with an indirect compression liquid delivery structure. The eye drop bottle includes a liquid loading part and an auxiliary dropping part, and the two parts can be quickly assembled and disassembled;

[0046] 2) The liquid loading part is used to load and store eye drops. The bottle body of this part is marked with scales, and the head is provided with a dropper hole. A latex cap is provided at the dropper hole to form a nipple cover, and the dropper hole is sealed by the rubber cap to prevent air from entering; A dosing piston is provided at the tail of this part, and the piston rod of the dosing piston is connected to the drive output end of the auxiliary dropping part;

[0047] 3) The auxiliary dropping part is provided with a first chamber A and a second chamber B. The first chamber A is provided with a one-way air inlet hole. A first drive piston is provided in the first chamber A. The first drive piston is connected to an external compression unit. By pressing the external compression unit from the outside to the inside, the gas in the first chamber A is compressed to push the second drive piston in the second chamber B to move towards the liquid loading part; The piston rod of the second drive piston is linked to the piston rod of the medicine piston;

[0048] 4) Through the conduction of force, the dosing piston is pushed to move, so that the eye drops move towards the dropper hole and finally flow out unidirectionally from the dropper hole, forming a piston pressing and pushing type liquid extrusion channel, forming an indirect compression liquid delivery structure.

[0049] Further, the latex cap is a movable cover. By setting a movable cover at the liquid outlet hole, it is possible to prevent the environmental air from flowing back and polluting the liquid medicine after dropping the medicine.

[0050] Further, the pressing handle constitutes an active pressing switch, which can prevent accidental touch and accidental pushing, resulting in the loss of liquid medicine.

[0051] Further, by setting the latex cap and leaving no space for air, the liquid medicine does not come into contact with air during storage and use, thereby preventing the interaction between gas and liquid and the growth of air microorganisms, and keeping the properties and components of the eye drops unchanged.

[0052] Further, using indirect drive of the secondary drive piston, through the extrusion-compression gas micro transmission structure, specifically, the user presses the external compression unit to indirectly drive the dosing piston in the liquid loading part to flexibly control the dropping speed and number of drops of the liquid medicine. Relax the handle of the external compression unit, or press the press-type pressure relief port provided at the auxiliary dropping structure to quickly terminate the dropping of the liquid medicine.

[0053] The working principle of this specific embodiment is described below:

[0054] Refer to Figure 1, in actual application, when pressing the compression unit 2-4 inward, the first driving piston 2-5 moves upward, compressing the gas in the first cavity A, thereby pushing the second driving piston 2-2 along the first cavity B towards the liquid medicine storage structure 1, and through the conduction of force, pushing the dosing piston 1-3 of the liquid medicine storage structure 1 to move, so that the liquid medicine in the liquid medicine storage structure 1 drips out from the drip tip 1-1. The push handle 1-6 of the liquid medicine storage structure 1 can be connected to the piston rod of the second driving piston 2-2 through a semi-circular connection. Since the piston pressing and pushing type is adopted to extrude the liquid medicine, and it is matched with the one-way outflow of the liquid outlet hole, it can effectively avoid the reflux of ambient air to pollute the liquid medicine after dropping the medicine. The whole process has no chance to contact with air after the liquid medicine is loaded, and there is no extra space left for air. Furthermore, it can prevent the interaction of gas and liquid and the growth of air microorganisms, ensuring that the original properties and components of the eye drops remain unchanged.

[0055] Refer to Figure 1 , Figure 3 and Figure 4 , in this embodiment, the liquid medicine storage structure 1 is used to store eye drops. The liquid medicine storage structure 1 is provided with a drip tip 1-1 and a scale 1-5. An auxiliary drip structure 2 is connected to the bottom of the liquid medicine storage structure 1. The inner cavity of the auxiliary drip structure 2 is communicated with the inner cavity of the liquid medicine storage structure 1. A dosing piston 1-3 is arranged in the inner cavity of the liquid medicine storage structure 1 to form one of the partition structures; a drip tip 1-1 for partitioning the liquid medicine storage structure 1 is arranged in the inner cavity of the auxiliary drip structure 2. The drip tip 1-1 is provided with a semi-fixed latex cap to prevent external air from contacting the eye drops in the medicine bottle; the dosing piston 1-3 is connected to the driving output end of the auxiliary drip structure 2 through a push handle 1-6 to push the dosing piston 1-3, so that the liquid medicine in the inner cavity of the liquid medicine storage structure 1 drips out through the drip tip 1-1. The semi-fixed latex cap 1-4 can protect the internal structures such as the drip nozzle.

[0056] Refer to Figure 1 , an anti-misoperation plug 2-7 is arranged at the compression unit 2-4 of the auxiliary drip structure 2. The compression unit 2-4 is provided with a pressing spring 2-6 to ensure that the pressing handle 2-4-1 can return to its original position. The pressing handle 2-4-1 is movably connected to the first driving piston 2-5 of the first cavity A. By controlling the number and depth of pressing the pressing handle 2-4-1, the outflow of liquid drops can be conveniently controlled.

[0057] Refer to Figure 1 , Figure 5 and Figure 6, the auxiliary drug dripping structure 2 is equipped with an active pressing type pressure relief valve 2-8. After pressing, the pressure in the first cavity A can drop rapidly. When the auxiliary drug dripping structure 2 needs to be reused, the pressure relief valve 2-8 helps to retract the second driving piston 2-2 and the pressing handle 2-4-1 in the first cavity B to their original positions after using up the liquid medicine in the liquid medicine storage structure 1 and replacing it with a new bottle. The airtightness of both the first cavity A and the second cavity B can be maintained by manually adding lubricating components to ensure that it can be reused. (The second driving piston 2-2 can be pulled out along the second cavity B, and after being pulled out, both the first cavity A and the second cavity B are in an open state)

[0058] Refer to Figure 3 and Figure 1 , a semi-fixed latex cap 1-4 is provided at the liquid dripping head 1-1 to form a liquid dripping head closing structure. One end of the latex cap 1-4 is fixed on the liquid dripping head 1-1, and the other end is movably connected to the liquid dripping head 1-1 through a snap connection. When the latex cap 1-4 is closed, the liquid outlet of the liquid dripping head 1-1 is closed, and the eye liquid medicine cannot flow out.

[0059] Refer to Figure 4 and Figure 1 , press the pressing handle 2-4-1, the first driving piston 2-5 in the first cavity A moves inward, the pressure in the first cavity A increases, and the second driving piston 2-2 in the first cavity B is pushed to move outward. The first driving piston 2-5 in the A cavity is linked with the second driving piston 2-2 in the B cavity to squeeze the liquid in the medicine bottle, and the semi-fixed latex cap 1-4 at the liquid dripping nozzle is pushed open, and the liquid medicine flows out from the liquid outlet hole. After releasing the pressure by pressing the pressure relief valve 2-8, the latex cap 1-4 returns to the sealed state to prevent air from contacting the liquid medicine in the medicine bottle.

[0060] The latex cap 1-4 is semi-fixed on the liquid dripping head 1-1 and has a certain elasticity. There is a nipple 1-4-1 on the inner side of the latex cap 1-4 opposite to the liquid dripping hole, which abuts against the liquid dripping hole when closed, and air cannot enter to contact the liquid medicine. When the piston of the liquid medicine bottle is pressed, the latex cap 1-4 is pushed open, and the liquid medicine flows out through the liquid dripping hole. After releasing the pressure, the latex cap 1-4 returns to its original position to maintain the airtightness.

[0061] In summary, this embodiment has the following characteristics: There is no air contact in the medicine bottle, avoiding the pollution of the liquid medicine caused by the air backflow in the conventional eye drop bottle, and the influence of the long-term interaction between air and liquid medicine on the properties of the liquid medicine. Through the auxiliary drug dripping component, borrowing the principle of gas compression micro transmission, it simulates the effect of squeezing the most common flexible plastic medicine bottle, realizes the micro movement of the piston in the medicine bottle, and achieves the effect of accurately controlling the drug drops.

[0062] Imagine if the piston in the medicine bottle is directly pushed by hand, with the cross-sectional area of the piston being 1 cm 2Taking a syringe as an example, when the piston moves slightly by 1 mm, the liquid output is 100 μL, which is equivalent to squeezing out 5 drops of liquid medicine at a time. This is not advisable. By simulating the principle of flexible bottle extrusion-compressed gas micro transmission, the operator can flexibly control the dropping speed and number of drops of the liquid medicine by pressing the handle, and the dropping of the liquid medicine can be quickly terminated by relaxing the handle or pressing the pressure relief valve.

[0063] In this embodiment, the auxiliary liquid dropping structure 2 can be reused, meeting the requirements of building a conservation-minded society.

Claims

1. An anti-pollution medical eye drop administration medicine bottle, characterized in that: It includes a liquid medicine storage structure (1) and an auxiliary medicine dropping structure (2). The liquid medicine storage structure (1) and the auxiliary medicine dropping structure (2) are connected into a whole through a detachable connection structure; At the top of the liquid medicine storage structure (1), there is a liquid dropping head (1-1). At the liquid dropping head (1-1), there is a semi-fixed latex cap (1-4) to form a liquid dropping head sealing structure. At the tail end of the liquid medicine storage structure (1), there is a medicine delivery piston (1-3). The medicine delivery piston (1-3) is connected to the drive output end of the auxiliary medicine dropping structure (2) through a push handle (1-6). Inside the auxiliary medicine dropping structure (2), there are a first cavity A and a second cavity B. The first cavity A and the second cavity B are vertically arranged and communicate with each other. The first cavity A is provided with a one-way air inlet hole (2-1) and a first drive piston (2-5). The first drive piston (2-5) is connected with a compression unit (2-4) to form a pressing type drive structure. In the second cavity B, there is a second drive piston (2-2). The piston rod of the second drive piston (2-2) is the drive output end of the auxiliary medicine dropping structure (2) and is connected to the push handle (1-6). The second drive piston (2-2) makes a reciprocating motion driven by the change of the air pressure in the first cavity A to form a pneumatic drive structure; An indirect compression type liquid medicine delivery structure is formed; At the auxiliary medicine dropping structure (2), there is a pressing type pressure relief port (2-8) to form a pressure relief structure for the first cavity A so that after the pressing type pressure relief port (2-8) is activated, the pressure in the first cavity A drops rapidly, and the piston and the handle in the second cavity B stop advancing. The pressing type pressure relief port (2-8) is composed of a pressing type piston (2-8-1) and a spring (2-8-2); The detachable connection structure is composed of a plurality of spring type protruding fixing knobs (2-9) arranged on the outer side of the opening end of the auxiliary medicine dropping structure (2) and a plurality of concave points (1-7) arranged at the tail of the liquid medicine storage structure (1). The spring type protruding fixing knobs (2-9) correspond to the concave points (1-7) one by one to form a matching detachable connection structure; The latex cap (1-4) is semi-fixed on the liquid dropping head (1-1) and has a certain elasticity. There is a nipple (1-4-1) on the inner side of the latex cap (1-4) opposite to the liquid dropping hole. When closed, it abuts against the liquid dropping hole, and air cannot enter to contact the liquid medicine. When the piston of the liquid medicine bottle is pressed, the latex cap (1-4) is pushed open, and the liquid medicine flows out through the liquid dropping hole. After the pressure is released, the latex cap (1-4) returns to its original position to maintain the sealing property.

2. The anti-pollution medical eye drop administration vial according to claim 1, characterized in that: An anti-mis-touch plug pin (2-7) is arranged at the compression unit (2-4) to form an anti-leakage structure to prevent the liquid medicine from leaking due to mis-touch.

3. A pollution-proof medical eye-drop administration medicine bottle according to claim 1 or 2, characterized in that: The compression unit (2-4) consists of a pressing spring (2-6) and a pressing handle (2-4-1). One end of the pressing spring (2-6) is fixedly connected to one end of the pressing handle (2-4-1), and the other end is fixed in the auxiliary drug dripping structure (2) to form an elastic reset structure. The other end of the pressing handle (2-4-1) is movably connected to the first driving piston to form a piston driving structure. The pressing spring (2-6) is used to keep the pressing handle (2-4-1) return to its original position. The pressing handle (2-4-1) is movably connected to the first driving piston. By controlling the number of presses and the depth of the pressing handle (2-4-1), the number of drops flowing out and the amount of liquid flowing out are controlled.

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