KR20200028838A - Liquid medicine dispenser - Google Patents

Abstract

The present invention relates to a liquid medicine dispenser used as an eye drop container, which is capable of accurately administering eye drops drop by drop when administering eye drops, and preventing the penetration of foreign substances and bacteria. The liquid medicine dispenser comprises: a main body whose upper portion is opened and which stores liquid eye drops; a discharge member connected to the upper portion of the main body, and including a discharge passage for discharging eye drops, a step formed to narrow the inside diameter of the discharge passage, and a discharge portion formed on the upper portion of the discharge passage; an opening and closing member provided in the discharge portion to discharge eye drops in the form of drops; and a cover member covering the discharge member. Accordingly, a liquid medicine can be accurately administered drop by drop.

Description

Liquid medicine dispenser

The present invention relates to a chemical liquid dispenser, and in particular, to the chemical liquid dispenser used as an eye drop container capable of accurately administering eye drops drop by drop when administering eye drops, and preventing the penetration of foreign substances and bacteria.

In general, a dispenser (Dispenser) is a device that discharges a certain amount of gas or liquid or other contents filled in a sealed container by pressurization, and is applied to various sealed containers that store cosmetics, perfumes, medicines, foods, etc. Is becoming.

On the other hand, as the life is advanced and the industry develops, the pollution of the environment becomes serious and the fatigue of people is increasing. In particular, the health of the eyes, which are exposed to various displays such as smartphones and monitors, which are easy to rest for a while, is likely to be infringed, and as a result, the use of eye drops continues to increase.

Examples of such eye drops are liquid type or gel type, and liquid type eye drops are stored in an eye drop container.

Since the existing eye drops do not have an indicator for precise administration, the patient simply needs to inject the eye by tilting or moving the eye drop container depending on the senses. During this process, there were various discomforts, such as dropping the eye drops somewhere other than the eye or hurting the eye with an eye drop container.

1 is a view schematically showing a conventional eye drop container.

Referring to FIG. 1, the ophthalmic container 1 is provided with a tubular reservoir 2 made of synthetic resin material, and an injection portion 4 having an outlet 5 formed at an upper portion of the reservoir 2 is vertically disposed. In an erected state, communication is integrally formed.

The stopper 9 is screwed to the lower part of the injection part 4 or the storage body 2 to cover the injection part 4.

Therefore, when the eye drops are to be instilled, the cap 9 is removed from the injection part 4, and then the eye drop container 1 is placed upside down in an inverted state, and the eye drops are dropped dropwise into the eye.

An example of such a technique is disclosed in documents 1 to 3 below.

For example, the following patent document 1 includes a storage section in which eye drops are stored, a connection section connected to the storage section, a connection section through which the eye drops are passed through, and an eyepiece section connected to the eye section and close to the eyeball, and stored in the storage section Disclosed is an eye drop container in which a line is formed and an eyepiece line corresponding to the storage line is formed in the eyepiece.

In addition, Patent Document 2 below includes an eyeball container body having an empty inside and an outlet at the top, and an aiming mechanism which is charged and fixed inside the eyedropper container body, wherein the aiming mechanism is charged into the outer ball and the outer ball. The inner ball is coupled to the outer ball, and includes a fixing frame for fixing the outer ball to the inner surface of the eye drop container body, wherein the outer ball is filled with liquid around the inner ball, and the inner ball is partially filled with filling material. Disclosed are eye drops cases.

On the other hand, the following patent document 3 includes a main body portion that receives the eye drops and an outlet is formed at an end portion, and a lid portion that is coupled to the main body portion, the main body portion is located around the outlet, and protrudes outward than the outlet It has been disclosed for an ophthalmic container in which an eyelid lifter is formed to raise the eyelids of a subject to be administered when the eye drops are administered.

Republic of Korea Registered Patent Publication No. 10-1182829 (2012.09.07 registered) Republic of Korea Registered Patent Publication No. 10-1713449 (Registration on February 28, 2017) Republic of Korea Utility Model Publication No. 2016-0000172 (released on Jan. 18, 2016)

However, in the technology disclosed in the patent document as described above, when the eye drops are administered to the user's eyes, there is a problem that the eye drops continue to flow without being discharged drop by drop. That is, not only is it difficult to quantitatively administer eye drops, but there is also a problem that tissues and the like must be used to wipe eye drops flowing into the eyes.

In addition, in the technology disclosed in the patent document, there is also a problem that there is a possibility of penetration of foreign substances and bacteria into the inlet portion after the use of the eye drops provided only the inlet is used.

An object of the present invention was made to solve the problems as described above, and to provide a chemical liquid dispenser capable of accurately administering a fixed amount of eye drops dropwise during administration of eye drops.

Another object of the present invention is to provide a chemical liquid dispenser capable of preventing infiltration of foreign substances and bacteria by sealing the outlet after use of the eye drops.

In order to achieve the above object, the chemical liquid dispenser according to the present invention has a body in which an upper portion is opened and stores a liquid chemical liquid, connected to an upper portion of the body, a discharge passage for discharging the chemical liquid, and a diameter inside the discharge passage It characterized in that it comprises a discharge member having a step formed to be narrowed and a discharge portion formed on an upper portion of the discharge passage, an opening and closing member provided in the discharge portion to discharge the chemical liquid in a droplet shape, and a cover member covering the discharge member.

In addition, in the chemical liquid dispenser according to the present invention, the opening and closing member is made of three separation membranes provided at a 120-degree interval in the shape of a wave, and when the chemical liquid is not used, it is kept closed, and the discharge pressure of the main body during discharge operation of the chemical liquid It is characterized in that the central portion of the three separators is opened to discharge the chemical liquid in the form of drops.

In addition, in the chemical liquid dispenser according to the present invention, further comprising a first check valve provided on the discharge member, the first check valve is mounted on the inside of the discharge member, the top is open and the semi-circular diameter becomes smaller toward the bottom It is made of a cylinder, characterized in that the semi-circular cylinder has a variable portion that can be deformed up and down and an opening and closing projection for supplying and blocking the flow path.

In addition, in the chemical liquid dispenser according to the present invention, the opening / closing member has a second check valve made of a semicircular cylindrical body having an upper opening and a smaller diameter toward the lower end, a support made of a cylindrical shape and fitted to the second check valve, the It is fitted to the support portion, characterized in that it comprises a discharge portion having a liquid-forming guide provided on the upper portion and a droplet forming portion provided in a dome shape.

In addition, in the chemical liquid dispenser according to the present invention, the chemical liquid guide portion is formed in a wavy shape, and a groove through which the chemical liquid flows is formed between each chemical liquid guide portion, and the droplet forming portion is provided with the bad liquid guide portion in a central portion of the chemical liquid guide portion. It is provided at a distance, and is characterized in that a discharge port communicating with a path for discharging the chemical liquid is formed inside the discharge unit.

As described above, according to the chemical liquid dispenser according to the present invention, by providing the opening and closing member provided in the discharge portion so as to discharge the discharge member and the eye drops in the form of drops, the effect of accurately administering the chemical liquid drop by drop Is obtained.

In addition, according to the chemical liquid dispenser according to the present invention, by providing an opening and closing member made of three separation membranes provided at 120-degree intervals in a wavy shape, an effect of preventing penetration of foreign substances and bacteria is obtained.

In addition, according to the chemical liquid dispenser according to the present invention, by forming a discharge portion having a liquid guide portion and a droplet forming portion provided in a dome shape, it is also possible to obtain the effect of accurately discharging the chemical liquid dropwise during administration of the chemical liquid.

1 is a view schematically showing a conventional eye drop container,
Figure 2 is a perspective view of an eye drop container as a chemical dispenser according to the invention,
3 is a cross-sectional view of an eye drop container according to a first embodiment of the present invention,
Figure 4 is a perspective view showing the closed state of the opening and closing member provided in the eye drop container according to the first embodiment of the present invention,
Figure 5 is a perspective view showing the open state of the opening and closing member provided in the eye drop container according to the first embodiment of the present invention,
Figure 6 is a cross-sectional view showing the state of the first check valve provided in the eye drop container according to the first embodiment of the present invention,
7 is a cross-sectional view of a chemical liquid dispenser according to a second embodiment of the present invention,
8 is an exploded perspective view of a chemical dispenser according to a second embodiment of the present invention,
9 is a view for explaining the structure of the second check valve shown in FIG. 8;
10 is a view for explaining the structure of the support shown in FIG. 8,
11 is a view for explaining the structure of the discharge portion shown in FIG. 8,
12 is a view for explaining the combined state of the second check valve, the support portion and the discharge portion in the chemical liquid dispenser according to the second embodiment of the present invention,
13 is a view for explaining the discharging process of the chemical liquid in the chemical liquid dispenser according to the second embodiment of the present invention.

The above and other objects and new features of the present invention will become more apparent through the description and accompanying drawings of the present specification.

As used herein, the term "medicinal fluid" is described using eye drops, but is not limited thereto. "Eye drops" lifts the main body of the chemical dispenser and allows the user to contact the body while the discharge member is in the downward direction. It means a state in which eye drops stored in the body by applying pressure are discharged through the opening / closing member.

In addition, the term "rising" used in the present invention means moving upward when the ophthalmic container, which is a chemical liquid dispenser, is used in a normal state, but may also mean moving downward when using the chemical liquid dispenser upside down. Also, "falling" means moving down when the ophthalmic container, which is a chemical dispenser, is used in a normal state, but may also mean moving upward when using the medicine dispenser upside down.

Hereinafter, a first embodiment according to the present invention will be described with reference to FIGS. 1 to 6.

2 is a perspective view of an eye drop container as a chemical liquid dispenser according to the present invention, and FIG. 3 is a cross-sectional view of the eye drop container according to a first embodiment of the present invention.

As the chemical liquid dispenser according to the first embodiment of the present invention, the ophthalmic container is formed in a cylindrical shape and stores a liquid eyedrop therein 100, the main body 100 as shown in FIGS. 2 and 3 It includes a discharge member 200 connected to the upper portion, the opening and closing member 300 provided in the discharge port portion of the discharge member 200, a cover member 400 covering the discharge member 200.

The main body 100 may be made of, for example, polypropylene as a synthetic resin, and may be provided as a transparent member so that a user can recognize the state of the eye drops therein. The upper portion of the main body 100 is open, and a locking jaw 110 is formed around the opening portion for coupling with the discharge member 200. A protrusion for fitting with the discharge member 200 is formed at an upper edge of the locking jaw 110.

The discharging member 200 may be made of the same material as the main body 100, for example, polypropylene, and forms a discharging passage 230 for discharging eye drops in the main body 100. The engaging portion 210 is fitted to the chin 110 is formed. The lower edge of the engaging portion 210 is formed with a concave portion that is engaged with the projection of the engaging jaw 110.

Therefore, it is coupled as shown in FIG. 3 by forcibly fitting the concave portion of the locking portion 210 to the projection of the locking jaw 110. Also, in the above description, the structure in which the discharge member 200 is fitted to the main body 100 is described, but is not limited thereto, and a structure coupled by a screw coupling method may be applied.

In addition, an annular guide 220 is formed in the central portion of the discharge member 200. As illustrated in FIG. 3, the guide 220 is closely inserted into the locking jaw 110 of the main body 100 and is provided toward the inside of the main body 100 longer than the length of the locking jaw 110.

By providing such a guide 220, when the eye drops are introduced, the eye drops are accurately guided to the discharge passage, and it is possible to prevent the eye drops from leaking between the main body 100 and the discharge member 200.

The discharge passage 230 is provided with a step 240 so that the diameter becomes narrow toward the opening and closing member 300 as shown in FIG. 3. Therefore, it is possible to prevent the excessive amount of the eye drops when passing the eye drops through the discharge passage 230.

In addition, the discharge portion 250 formed on the upper portion of the discharge member 200 is formed concave toward the inside, as shown in Figure 3, is provided with a wider diameter than the step 240 of the discharge passage 230. Therefore, eye drops that have passed through the opening / closing member 300 may be administered to the user's eyes without contacting the inside of the discharge unit 250. In addition, by providing the discharge member 200 in the structure as described above, when using the eye drops as a chemical liquid, the eye drops do not contact the outside of the discharge member 200 so that contamination around the discharge part 250 can be prevented. In addition, it is possible to prevent the penetration of foreign substances and bacteria.

As shown in FIG. 3, the opening / closing member 300 is mounted to a lower portion of the discharge portion 250, that is, an end portion of the discharge passage 230. The opening and closing member 300 will be described with reference to FIGS. 4 and 5.

4 is a perspective view showing the closed state of the opening and closing member provided in the eye drop container according to the first embodiment of the present invention, Figure 5 is a perspective view showing the open state of the opening and closing member provided in the eye drop container according to the first embodiment of the present invention to be.

The opening and closing member 300 is made of three separation membranes 310 provided at 120-degree intervals, as shown in FIGS. 4 and 5, and each separation membrane 310 is formed to be in contact with a wave shape rather than a straight shape. . The material of the opening / closing member 300 may also be formed of the same material as the main body 100 and the discharge member 200.

As shown in FIG. 4, the separation membrane 310 of the opening / closing member 300 maintains a closed state when the ophthalmic container is not in use, and as shown in FIG. 5 by the discharge pressure of the eye drops during the operation of discharging the eye drops. The central portion of the three separation membranes 310 is opened to discharge eye drops in the form of drops. After the discharging operation is completed, the three separation membranes 310 provided on the opening / closing member 300 return to the closed state again, as shown in FIG. 4, so that foreign substances and bacteria can be reliably prevented.

In addition, the diameter of the opening / closing member 300 may be set by an experimental value to discharge a prescribed amount of eye drops. In addition, a plurality of droplet forming grooves may be provided in the opening / closing member 300, that is, around the discharge passage 230, to form drops by lowering the discharge speed and discharge pressure so as to discharge the eye drops in drops in a predetermined amount. have.

In the first embodiment of the present invention, the amount of eye drops as the chemical liquid discharged at the time of discharging may be set to about 0.02 to 0.05 ml, preferably about 0.03 ml. In addition, the diameter of the opening and closing member 300 may be set to about 1.5 to 2.0 mm, preferably about 1.7 mm.

The cover member 400 is formed in a substantially same shape as the outer shape of the discharge member 200, and is illustrated in FIG. 3 to facilitate insertion and withdrawal into the discharge member 200 by a user by hand around the outer periphery of the lower portion. As described above, an annular protrusion is formed, and an insertion portion formed by protruding from the central portion is provided at an upper portion of the interior to seal the discharge portion 250.

Therefore, by fitting the cover member 400 to the discharge member 200, it is possible to prevent the ingress of foreign substances while preventing eye drops from being discharged to the discharge part 250.

Next, a method of using the eye drop container according to the first embodiment of the present invention will be described in detail with reference to FIGS. 3 to 5.

In the state of the eye drop container as shown in FIG. 3, the user holds the main body 100 that stores the liquid eye drop in one hand and separates the cover member 400 from the discharge member 200 with the other hand.

Thereafter, the discharge unit 250 is positioned at the user's eye. At this time, the state of the opening and closing member 300 is maintained in a closed state by three separation membranes 310, as shown in FIG.

Thereafter, pressure is applied to the main body 100.

The central portion of the three separation membranes 310 is opened as shown in FIG. 5 in a state in which the opening / closing member 300 is shown in FIG. 4 by applying pressure to the main body 100, thereby dropping the eye drops into a drop shape. Will be discharged.

After the operation of discharging the eye drops, the three separation membranes 310 provided on the opening / closing member 300 return to the closed state again as shown in FIG. 4.

Meanwhile, the first check valve 500 as illustrated in FIG. 6 may be mounted inside the discharge passage 230 of the eye drop container according to the first embodiment of the present invention.

6 is a cross-sectional view showing a state of a first check valve provided in an eye drop container according to a first embodiment of the present invention.

That is, as illustrated in FIG. 2, an elevating space in which a first check valve 500 is mounted is provided at a portion of the step 240 of the upper portion of the discharging passage 230, and the discharge of eye drops is disposed on one side of the elevating space. Forms a groove for guiding eye drops.

The first check valve 500 is mounted in the elevating space of the discharge passage 230, and is made of a semi-circular cylindrical body whose diameter is smaller as it is opened toward the bottom and opened toward the bottom, as shown in FIG. Jaw 510 is formed, the outer circumferential portion is provided with a variable portion 520 so that the semi-circular cylindrical body can be deformed up and down by pressure, the lower opening and closing projections 530 for supplying and blocking eye drops in the passage ) Is formed.

The first check valve 500 is made of a soft synthetic resin material so as to be deformable, and the variable portion 520 is made of a plurality of annular grooves over the entire circumference of the semicircular cylinder, so that the discharge passage 230 is opened. As shown in Fig. 6 (b), a plurality of annular groove portions are folded upward, and the opening / closing protrusion 530 moves upward, and upon closing, the elastic portion has its own elastic force. It is restored to the state shown in Fig. 6 (a).

In the first embodiment of the present invention, as described above, a plurality of annular groove portions provided in the variable part 520 are folded, and the opening / closing protrusion 530 moves upward, and when closed, the variable part 520 itself is unique. By applying the first check valve 500 that is restored to its original state by the elastic force of it, it is possible to reliably prevent the reverse flow of the eye drops and at the same time prevent the penetration of foreign substances and bacteria.

Next, a chemical liquid dispenser according to a second embodiment of the present invention will be described with reference to FIGS. 7 to 13.

7 is a cross-sectional view of a chemical liquid dispenser according to a second embodiment of the present invention, and FIG. 8 is an exploded perspective view of the chemical liquid dispenser according to a second embodiment of the present invention.

As the chemical liquid dispenser according to the second embodiment of the present invention, the ophthalmic container is formed in a cylindrical shape and stores a liquid eyedrop therein, as shown in FIGS. 7 and 8, the main body 100 The discharge member 200 connected to the upper portion of the discharge member 200 includes an opening / closing member 300 provided at an outlet portion of the discharge member 200, and as shown in FIG. 3, includes a cover member covering the discharge member 200 8, the opening / closing member 300 includes a second check valve 350, a support part 360, and a discharge part 370.

The second check valve 350, the support part 360, and the discharge part 370 will be described with reference to FIGS. 9 to 11.

9 is a view for explaining the structure of the second check valve shown in FIG. 8, FIG. 9 (a) is a perspective view of the second check valve, and FIG. 9 (b) is a cross-sectional view of the second check valve , Figure 10 is a view for explaining the structure of the support shown in Figure 8, Figure 10 (a) is a perspective view of the support, Figure 10 (b) is a cross-sectional view of the support, Figure 11 is shown in Figure 8 11 (a) is a perspective view of the discharge part, an internal state diagram of a part of the discharge of FIG. 11, and FIG. 11 (c) shows the discharge direction of the eye drops. It is the top view of the discharge part for betting.

The second check valve 350 is made of a semi-circular cylindrical body whose upper portion is opened and its diameter decreases toward the lower end, as shown in FIG. 9 (a), and the interior thereof is illustrated in FIG. 9 (b). As described above, it is formed of an annular space portion 351, and on the outside of the upper portion of the semi-circular cylindrical body, an annular engaging portion 352 is formed to be mounted in an elevating space provided in the stepped portion of the discharge passage 23, and the outer periphery is formed. In the central portion, a variable portion 520 is provided so that the semi-circular cylindrical body can be deformed up and down by pressure, and an opening / closing protrusion 530 is formed in the lower portion for supplying and blocking eye drops in the passage.

The second check valve 350 is made of a soft synthetic resin material so that it can be deformed, and the variable portion 520 is made of a plurality of annular grooves over the entire circumference of the semicircular cylinder, so that the discharge passage 230 is opened. As shown in Fig. 6 (b), a plurality of annular groove portions are folded upward, and the opening / closing protrusion 530 moves upward, and upon closing, the elastic portion has its own elastic force. It is restored to the state shown in Fig. 6 (a).

In the second embodiment of the present invention, as in the first embodiment, a plurality of annular groove portions provided in the variable part 520 are folded, and the opening / closing protrusion 530 moves upward, and when closed, the variable part 520 itself By applying the second check valve 350, which is restored to its original state by its inherent elastic force, it is possible to reliably prevent the reverse flow of eye drops and at the same time prevent the penetration of foreign substances and bacteria.

As shown in FIG. 10, the support part 360 is formed of a support 361 made of a substantially cylindrical shape, and provided at a lower portion of the support 361 to fit into the space 351 of the second check valve 350. It is composed of a first step portion 362 and a second step portion 363 provided on the upper portion of the support 361 and fitted to the lower portion of the discharge portion 370. The first stepped portion 362 and the second stepped portion 363 are provided with tapered shapes 364 and 365 to facilitate fitting.

The discharge portion 370, as shown in Figure 11 (a), the discharge body 371 is formed in a substantially cylindrical shape, the chemical liquid guide portion 372 provided on the upper portion of the discharge body 371, the chemical liquid guide A droplet forming portion 373 provided in a dome shape is provided inside the portion 372. The chemical guide portion 372 is provided in three places at intervals of approximately 120 degrees, spaced along the circumference of the upper central portion of the discharge body 371, as shown in FIG. It is made in a wavy shape. Therefore, a groove through which the chemical liquid flows is formed between each of the chemical liquid guide portions 372, and a droplet forming portion 373 is provided at a distance from the chemical liquid guide portion 372 in the central portion of the three chemical liquid guide portions 372. do.

In addition, the inside of the discharge body 371 is provided with an insertion portion 375 made of a hollow shape, as shown in Figure 11 (b) so that the upper portion of the support 361 of the support portion 360 is inserted, this insertion Three discharge ports 374 may be formed in the portion 375 at 120-degree intervals. The discharge port 374 is as shown in Figure 11 (c), the lower portion of the interior of the discharge body 371, as shown in Figure 11 (a) of the chemical liquid guide 372 and the chemical liquid guide ( 372). Therefore, the chemical liquid in the discharge portion 370 is formed as a droplet in the droplet forming portion 373 via a groove provided between the chemical liquid guide portions 372 through the discharge hole 374 to be discharged.

The coupling relationship between the second check valve 350, the support part 360 and the discharge part 370 will be described according to FIG. 12.

12 is a view for explaining a combined state of the second check valve, the support portion and the discharge portion in the chemical liquid dispenser according to the second embodiment of the present invention.

12, the opening and closing member 300 is mounted on the discharge passage 230, the lower portion of the support portion 360 is fitted on the upper portion of the second check valve 350, the upper portion of the support portion 360 In the discharge portion 370 is fitted. That is, the annular engaging portion 352 of the second check valve 350 is mounted in the elevating space provided in the stepped portion of the upper portion of the discharge passage 23, and between the second check valve 350 and the discharge passage 230 As illustrated in FIG. 12, a path 231 for discharging the chemical liquid is formed, and the first step 362 portion of the support 360 is introduced into the annular space 351 provided in the second check valve 350. Insert is fixed. The second check valve 350 is discharged except for the position where the path 231 for discharging the chemical liquid is provided by inserting the first step 362 of the support 360 into the second check valve 350 It can be in close contact with the passage 230 to prevent foreign matter from entering. The path for discharging the chemical liquid 231 may be provided in three places in the elevating space corresponding to the above-described three discharge ports 374.

In addition, the second step portion 363 of the support portion 360 is fitted to the insertion portion 375 of the discharge body 371 so that the lower end of the discharge portion 370 and the upper end of the second check valve 350 are shown in FIG. 12. As shown, it is maintained in abutting state, and the discharge port 374 forms a path for discharging the chemical liquid, so that the path 231 for discharging the chemical liquid and the discharge port 374 are in communication. In addition, the discharge portion 370 is also fitted so as to be in close contact with the discharge passage 230 to prevent foreign matter from entering.

Next, a process of discharging the chemical liquid according to the second embodiment of the present invention will be described with reference to FIG. 13.

13 is a view for explaining a process of discharging the chemical liquid in the chemical liquid dispenser according to the second embodiment of the present invention.

In the state of the eye drop container as shown in FIG. 3, the user holds the main body 100 that stores the liquid eye drop in one hand and separates the cover member 400 from the discharge member 200 with the other hand.

Thereafter, the discharge unit 250 is positioned at the user's eye. At this time, the state of the opening / closing member 300 is maintained in a state where the second check valve 350 blocks the discharge passage 230 as shown in FIG. 12.

Thereafter, pressure is applied to the main body 100. The variable portion 520 of the second check valve 350 rises upward as shown in FIG. 13 while the opening / closing member 300 is shown in FIG. 12 by applying pressure to the main body 100. While opening and closing the protrusion 530 is raised, the discharge passage 230 is opened.

Therefore, the chemical liquid retained in the main body 100 is a chemical liquid guide portion provided on the upper portion of the discharge body 371 via a path 231 for discharging the chemical liquid and three discharge ports 374 as indicated by arrows in FIG. 13. It is guided to (372), and is discharged in the form of a droplet from the droplet forming portion 373 provided in a dome shape inside the chemical guide portion (372).

Meanwhile, since the chemical liquid guide portion 372 is formed in a wavy shape, the chemical liquid is guided along the groove provided between the chemical liquid guide portions 372 and prevents excessive flow to the droplet forming portion 373.

After the discharging operation of the chemical liquid is completed, the second check valve 350 provided on the opening / closing member 300 returns to the state of FIG. 12 to maintain the closed state.

The invention made by the present inventors has been described in detail according to the above-described embodiments, but the present invention is not limited to the above-described embodiments and can be changed in various ways without departing from the gist thereof.

That is, in the above embodiment, it has been described that the eye drops are embedded in the main body, but the present invention is not limited to this. It can be applied to a fluid dispenser for use.

By using the chemical liquid dispenser according to the present invention, it is possible to accurately discharge the chemical liquid drop by drop during administration of the chemical liquid.

100: main body
200: discharge member
300: opening and closing member
400: cover member

Claims (5)

The main body that the upper part is opened and stores the liquid chemical.
A discharge member connected to the upper portion of the main body and having a discharge passage for discharging the chemical liquid, a step formed to narrow the inside diameter of the discharge passage, and a discharge portion formed at the top of the discharge passage,
Opening and closing member provided in the discharge portion to discharge the chemical liquid in the form of drops,
And a cover member covering the discharge member. In claim 1,
The opening and closing member is made of three separation membranes provided at a 120-degree interval in the shape of a wave, and maintains the closed state when the chemical liquid is not used, and the central portion of the three separation membranes is opened by the discharge pressure of the main body during the discharge operation of the chemical liquid A chemical liquid dispenser characterized by discharging the chemical liquid in the form of drops. In claim 1,
Further comprising a first check valve provided on the discharge member,
The first check valve is mounted inside the discharge member, and is made of a semi-circular cylindrical body whose upper part is opened and smaller in diameter toward the lower end, to supply and block a variable portion and a flow path in which the semi-circular cylindrical body is deformable up and down. Chemical dispenser characterized in that it has a opening and closing projection for. In claim 1,
The opening and closing member
A second check valve made of a semi-circular cylindrical body whose diameter is smaller as the upper part opens and goes to the lower part.
Support made of a cylindrical shape and fitted to the second check valve,
And a discharging portion fitted to the support portion and having a liquid guide portion provided on the upper portion and a droplet forming portion provided in a dome shape. In claim 4,
The chemical liquid guide portion is formed in a wavy shape, a groove through which the chemical liquid flows is formed between each chemical liquid guide portion, and the liquid droplet forming portion is provided at a distance from the bad liquid guide portion in a central portion of the chemical liquid guide portion,
A chemical liquid dispenser characterized in that a discharge port communicating with a path for discharging the chemical liquid is formed inside the discharge portion.

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