JP4827092B2 - Trace liquid spill container - Google Patents

Description

  The present invention relates to a trace liquid outflow container that can be used for eye drops.

There is known a liquid discharge container in which an ophthalmic container is formed of two inner and outer delamination bottles and a bactericidal filter is provided inside a pouring hole (Patent Document 1).
Japanese Patent Laid-Open No. 2002-80055

When the body is released after the container body part is squeezed out by squeezing the container body, outside air flows in between the container body outer layer and the inner layer, and the outer layer is elastically restored, but the inner layer remains compressed. Thus, outside air does not enter the inner layer, and the antibacterial filter is provided inside the liquid outflow hole, so that the liquid in the container is not contaminated by bacteria.
The present invention is also provided so that outside air does not enter the container body and bacteria that have entered with the outside air are not mixed into the container body liquid.

As a first means, the gas pressure in the container body 1 is made to pass through the central portion of the top wall of the aerosol liquid ejection container whose pressure is slightly higher than atmospheric pressure, and the liquid outflow stem 2 is urged upward to stand up. The discharge valve provided at the lower end of the stem is opened by the lowering of the stem 2 due to the depression of the depression head 4 with the nozzle 3 fitted to the upper part of the stem, and a small amount of liquid is allowed to flow out of the nozzle 3 . An inward flange 23 is attached to the upper end of the short cylinder 22, and a cover 21 provided by raising the mounting table 25 from the upper surface of the flange is fitted to the upper end of the container body, and the pressing head peripheral wall 8 In the state where the mounting plate 12 is attached to the lower outer surface and the lower end of the mounting plate 12 is mounted on the mounting table, liquid outflow from the nozzle 3 due to the pressing of the pressing head 4 is impossible. The nozzle 3 protrudes from the front part of the peripheral wall 8 of the pressing head. The abutting protrusion 11 having substantially the same length as the protruding length of the nozzle 3 is protruded rearward from the rear portion of the peripheral wall 8 to be moved, and the cap fitting cylinder 24 is connected to the mounting plate 12 from the outer periphery of the inward flange 23 of the cover 21. The cap wall 31 of the cap 31 with the pressing head 4 covered is fitted into the cap fitting cylinder 24, and the front end surface of the nozzle 3 is the cap peripheral wall 32 when the cap is fitted. The rear end face of the contact protrusion 11 is formed to be able to contact the inner surface of the cap peripheral wall 32 in an airtight manner.

  As a second means, a filter 10 for preventing bacteria inflow was fitted into the nozzle 3 of the pressing head 4 while having the first means.

As the third means, the first or second means is provided, and the stopper 26 is erected from either the left or right side surface of the mounting table 25. The latching table 28 is raised from the inward flange 23 with the clearance above the upper surface of the mounting table 25 so that the pressing head 4 is positioned at the upper limit and the mounting plate 12 is positioned between the stopper 26 and the locking table 28. In the state where the mounting plate 12 is movable between the stopper 26 and the locking base 28 and the mounting plate 12 is positioned above the small gap 27, the pressing head 4 with respect to the container body 1 is moved. It was possible to push down.

By using the first means, the gas pressure in the aerosol container is slightly increased by the atmospheric pressure, so that the liquid flowing out from the nozzle slightly flows out when the head is pushed down, so that the liquid flowing out is dropped. It can be dropped into the eye etc., and the liquid flows out with the gas pressure in the container, so there is no risk that the outside air will flow into the container after the liquid dripping is completed, so that bacteria will not enter the container with the outside air. . In addition, a safety device that makes it impossible to press down the pressing head can be provided. Furthermore, the pressing head can be fixed in the cap, and the nozzle hole can be hermetically closed.

By using the second means , bacteria do not enter the nozzle, and do not enter the container through the nozzle.

By using the third means , it is possible to easily switch the safety device on and off and prevent malfunction.

  Referring to the drawings, reference numeral 1 denotes an aerosol-type container body, and a stem 2 is erected from the center of the top wall of the container body so as to pass through the top wall. It is fitted. The pressing head is fitted from the lower surface of the center portion of the top wall 5 to the upper outer surface of the stem 2 to suspend the communication cylinder 6 and causes the nozzle cylinder 7 to protrude forward along the lower surface of the top wall 5 from the upper end of the communication cylinder. The nozzle cylinder front end is slightly forwardly projected from the front surface of the peripheral wall 8 to form the nozzle 3.

  The stem is provided with an upward bias as is well known, and a discharge valve is provided at the lower end, and when the push-down head is pushed down against the bias, the discharge valve opens, and the high-pressure liquid nozzle 3 in the container body is opened. It is possible to flow through.

In the present invention, the inside of the container is made slightly higher than the atmospheric pressure, and is provided so as to gently flow out of the nozzle when the stem is lowered by the depression of the depression head, and the gas pressure is about 1.5 to 3 kg / cm @ 2. do it. The nozzle 3 is provided so as to protrude forward from the front surface of the peripheral wall, and a filter 10 for preventing bacterial inflow is fitted into the nozzle 3. The filter may be extended into the nozzle cylinder 7. A contact protrusion 11 having a length substantially the same as the nozzle protrusion length protrudes rearward from the rear portion of the peripheral wall facing the nozzle protrusion portion.

  A mounting plate 12 is provided vertically on the lower outer surface of the peripheral wall 8. A cover 21 is fitted to the outer surface of the upper end portion of the container body. The cover is provided with an inward flange 23 at the upper end of a short cylinder 22 fitted to the upper outer surface of the peripheral wall of the container body. The mounting table 25 is erected from a part of the upper surface of the inward flange of FIG. 4, and the stopper 26 is erected from one of the left and right side surfaces of the mounting table. As shown in FIG. 2, the locking base 28 is erected with the small gap 27 therebetween. The locking stand is raised higher than the upper surface of the mounting table 25 like the stopper. The lower end surface of the mounting plate 12 described above is provided so as to be mounted on the upper surface of the mounting table 25, and even if an attempt is made to rotate the pressing head from the mounting state toward the stopper 26, the lower surface of the mounting plate 12 rotates in contact with the stopper 26. In the state where the movement is prevented and the mounting plate is positioned above the small gap 27, the liquid can be discharged by pressing down the stem 2 via the pressing head 4, and when it is further rotated, The mounting plate 12 comes into contact with 28 and rotation is prevented.

  31 is a cap, and the lower part of the cap peripheral wall 32 that covers the pressing head 4 and is suspended from the outer periphery of the top wall is screwed to the outer surface of the cap fitting cylinder 24 described above. The cap has an inner cap 33 formed of a soft material such as elastomer on the inner surface of the cap except for the lower portion of the cap peripheral wall as shown in the figure, and the cap peripheral wall 32 is screwed into the cap fitting cylinder 24. At this time, the front end surface of the nozzle 3 is provided so as to be airtight or watertight to the inner wall surface of the inner cap peripheral wall, and the rear end surface of the contact protrusion 11 is also in contact with the inner wall surface of the inner cap peripheral wall.

  In the above configuration, for example, when an eye drop is put into the container body and instilled, the cap 31 is first removed, the container body is tilted, the nozzle 3 is positioned above the eyes, and the top wall 5 of the push-down head 4 is pushed in this state. Lower. Then, the eye drop slightly increased in pressure can be dripped from the nozzle 3 by opening the discharge valve below the stem 2.

  After using the container, the cap 31 is fitted again. When the cap is fitted, the nozzle front end surface is in airtight or watertight contact with the inner wall surface of the inner cap peripheral wall, and the rear end surface of the abutting protrusion 11 is also in contact with the inner surface of the inner cap peripheral wall. It will be securely held inside.

It is a side view of this invention container which shows a principal part as a cross section. It is a top view of a container of Drawing 1 shown in the state where a cap was removed. FIG. 3 is a plan view showing a state in which a pressing head is rotated from the state of FIG. 2 to a pressing position. It is explanatory drawing of the safety device for a depression prevention of a depression head with respect to the cover fitted to the container body upper part.

Explanation of symbols

1 container body 2 stem 3 nozzle 4 pressing head
10 Filter 12 Mounting plate
21 Cover 24 Cap fitting cylinder
25 Mounting base 26 Stopper
27 Small gap 28 Locking base
31 Cap 33 Inner cap

Claims (3)

Let the gas pressure in the container body (1) pass through the center of the top wall of the aerosol-type liquid ejection container whose pressure is slightly higher than atmospheric pressure, and erection the liquid outflow stem ( 2 ) upwardly, in the descent of the stem (2) by depression of the nozzle fitted into the stem upper portion (3) with pressing head (4), small amount of liquid discharge valve is opened which is provided on the stem lower end of the nozzle (3) A cover (21) that is formed so that it can flow out , has an inward flange (23) attached to the upper end of the short cylinder (22), and the mounting table (25) is raised from the upper surface of the flange. In the state where the mounting plate (12) is attached to the lower outer surface of the pressing head peripheral wall (8) and the lower end of the mounting plate (12) is mounted on the mounting table, The liquid is prevented from flowing out from the nozzle (3) by the pressing of the pressing head (4), From the rear part of the peripheral wall (8) facing the protruding part of the nozzle (3) from the front part of the lowering head peripheral wall (8), the abutting protrusion (11) having substantially the same length as the protruding length of the nozzle (3) is projected backward. The cap fitting cylinder (24) is raised from the outer periphery of the inward flange (23) of the cover (21) with the mounting plate (12) positioned inward, and the push-down head (4) is The peripheral wall (32) of the covered cap (31) is fitted into the cap fitting tube (24), and the front end surface of the nozzle (3) is airtightly connected to the inner surface of the cap peripheral wall (32) when the cap is fitted. A trace liquid outflow container, wherein the rear end surface of the contact protrusion (11) is formed on the inner surface of the cap peripheral wall (32) so as to be able to contact each other . The trace liquid outflow container according to claim 1, wherein a filter ( 10 ) for preventing bacterial inflow is fitted into the nozzle ( 3 ) of the pressing head ( 4 ) . The stopper (26) is erected from either the left or right side surface of the mounting table (25), and from the upper surface of the mounting table (25) with a small gap (27) on the side not having the stopper. The locking base (28) is raised from the inward flange (23), the pressing head (4) is positioned at the upper limit, and the mounting plate (12) is connected to the stopper (26) and the locking base (28). In this state, the mounting plate (12) can move between the stopper (26) and the locking base (28), and the mounting plate (12) is positioned above the small gap (27). The trace liquid outflow container according to claim 1 or 2, characterized in that the push-down head (4) can be pushed down with respect to the container body (1) in the state of being .

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