JP3177695B2 - Chemical injection container - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a medical liquid ejecting container capable of properly injecting a chemical into an affected part or the like.

[0002]

2. Description of the Related Art Throat medicines containing iodine as a main ingredient are often used by being housed in a liquid medicine injection container and directly jetting to an affected part as needed.

[0003] The chemical liquid ejecting container used in such an application comprises a container main body, a pump mechanism attached to an opening of the container main body, and a pressing body for operating the pump mechanism as main members.
The nozzle for injecting the chemical is protruded from the side surface of the pressing body. Therefore, the user can eject the liquid medicine in the container body toward the affected part by grasping the container main body with fingers other than the index finger, hanging the index finger on the upper part of the pressing body and pressing the pressing body. The pump mechanism has
A compression spring is built in, and by expanding and contracting the whole via a pressing body, the chemical solution in the container body can be sucked and the sucked chemical solution can be ejected from the nozzle.

[0004]

In the prior art, since the nozzle is formed integrally with the pressing body, the nozzle moves up and down together with the pressing body when operating the pump mechanism by pressing the pressing body. As a result, there is a problem that it is not easy to properly inject the liquid medicine to the affected part.

Accordingly, an object of the present invention is to provide a nozzle provided on an adapter separate from the pressing body, in consideration of the problems of the prior art, so that the pressing mechanism can be pressed to operate the pump mechanism. Can be kept immobile,
An object of the present invention is to provide a chemical liquid ejecting container that can easily and correctly eject a chemical liquid to a predetermined position.

[0006]

In order to achieve the above object, the present invention is directed to a chemical solution which is attached to a mouth of a container body via a container body and a cap, and the whole is expanded and contracted to suck a chemical solution from below. Pump mechanism for pumping
An adapter mounted on the top of the cap, and a pressing body that operates the pump mechanism via a seal body slidably housed in the adapter, and the adapter has a nozzle protruding from the side that ejects the chemical from the pump mechanism. The main point is to do.

[0007] The seal body and the pressing body can be integrally connected, and the adapter may form a guide cylinder for guiding the pressing body in the axial direction.

Further, a detachable cover can be attached to the nozzle, and the cover can cover the upper surface of the pressing body.

[0009]

According to the structure of the present invention, the pump mechanism can push and operate the pressing body to expand and contract the whole, so that the chemical solution in the container body can be sucked and ejected from the nozzle. On the other hand, since the nozzle is projected from the adapter and is formed separately from the pressing body, even if the pressing mechanism is pressed to operate the pump mechanism, the nozzle does not move up and down together with the pressing body. , Can be kept immobile.
In addition, the seal body is slidably mounted on the adapter, movably seals the upper part of the adapter,
The operating force applied to the pressing body is transmitted to the pump mechanism.

When the seal body and the pressing body are integrally connected, both can be incorporated into the adapter at once.

If the guide cylinder is provided on the adapter, the pressing body can be guided in the axial direction correctly via the guide cylinder, so that the pressing operation of the pressing body can be more easily and reliably performed.

If a cover is attached to the nozzle, the cover
It is possible to prevent the nozzle from being carelessly soiled when not in use. Further, the cover that covers the upper surface of the pressing body can effectively prevent the pressing body from being erroneously pressed when not in use and the chemical liquid spilling out.

[0013]

Embodiments will be described below with reference to the drawings.

The chemical injection container includes a container body 11, a pump mechanism 20, a cap 12, an adapter 13, and a seal 1
4. The pressing member 15 is a main member (FIGS. 1 and 2).

The container main body 11 is a container for accommodating a chemical liquid having an opening 11a with an external thread 11a1 at the top. It is assumed that the container main body 11 is formed in a size and a shape that can be easily grasped by hand as a whole.

The cap 12 has a knurl 12a on its outer periphery.
And is a cap nut-shaped member having an internal thread 12b on the inner periphery.
Complies with a1. In the center of the cap 12, a through hole 12 is provided.
c is formed downward, and a large piston 23 incorporated in the pump mechanism 20 is slidably penetrated through the through hole 12c. An upwardly facing cylindrical portion 12d is formed around the through hole 12c.

The pump mechanism 20 is constructed by coaxially assembling a cylinder 21, a small piston 22, and a large piston 23.

The cylinder 21 is a stepped cylindrical body having a lower part as a small diameter part 21a and an upper part as a large diameter part 21b.
At the lower end of the cylinder 21, a cylindrical body 21c1 into which the suction tube 21c is inserted is formed, and at the upper end, an outward flange 21d is formed. The cylinder 21
Has a bottom hole 21c communicating with the suction tube 21c.
2 are formed, and the suction tube 21 c reaches the bottom of the container body 11. The upper half of the large-diameter portion 21b has a slightly larger diameter, and a through hole 21b1 is formed on the side surface.
Are formed.

The small piston 22 is provided at the lower end of the shaft 22a.
A flared seal portion 22b that fits the small diameter portion 21a of the cylinder 21 is formed upward. A stepped hole 22c is formed in the lower part of the shaft 22a so as to face downward in the axial direction. The upper part of the hole 22c communicates with the outside above the seal part 22b through a through hole 22c1. However, the shaft 22a is covered with an elastic tube 22e so as to cover the through hole 22c1. Also, the shaft 22
The upper end of a is a conical-pointed, small-diameter short cylinder 22
f is projected.

The large piston 23 is provided at the lower end of the shaft 23a.
A flared seal portion 23b that fits the large diameter portion 21b of the cylinder 21 is formed downward. The shaft 23a is formed with a shaft hole 23c having a conical step 23c1 in the middle, and the shaft hole 23c has a shaft 22a of the small piston 22 formed therein.
The upper half is slidably inserted from below. The upper portion of the shaft hole 23c is narrowed down to a small diameter, and the dish-shaped recess 23c is formed.
2, and is open at the upper end of the shaft 23a.

The pump mechanism 20 is connected via the cap 12
It is attached to the mouth 11a of the container body 11. However,
A packing 24 is interposed between the lower surface of the flange 21d of the cylinder 21 and the upper end surface of the mouth 11a, and a soft packing 25 is provided between the upper surface of the flange 21d and the top surface of the cap 12. It is interposed. The packing 25
The cap 12 extends downward along the outer periphery of the through hole 12c, and the lower end thereof is narrowed inward, and is in contact with the outer periphery of the shaft 23a of the large piston 23 passing through the through hole 12c. Also,
A compression spring 26 that urges the small piston 22 upward is provided in the small diameter portion 21 a of the cylinder 21.

Therefore, the shaft 22a of the small piston 22 is inserted into the shaft hole 23c of the large piston 23 from below,
The conical slope at the upper end is the conical step 23 of the shaft hole 23c.
By contacting c1 from below, the shaft hole 23c
Can be closed. The large piston 23 is urged upward by the compression spring 26 via the small piston 22, and the upper surface of the seal portion 23 b is engaged with the lower end of the through hole 12 c of the cap 12 via the lower end of the packing 25. By combining, they are positioned at an appropriate position.

An adapter 13 is mounted on the cap 12. The adapter 13 has a partition wall 13 in the middle.
a, the outer cylinder 13b, the inner cylinder 13c
Are fitted to the outer periphery of the upper portion of the cap 12 and the outer periphery of the cylindrical portion 12d of the cap 12, so that the cap 1
2 are mounted watertight.

On the side surface of the adapter 13, a nozzle 16 is provided to protrude horizontally. The nozzle 16 includes a core 13d protrudingly formed below the partition wall 13a of the adapter 13 and a nozzle tube 16a fitted outside the core 13d. 13d1 is formed (FIGS. 2 and 3). A nozzle hole 16a1 is opened at the tip of the nozzle cylinder 16a (FIGS. 2 and 4). A conical recess 16a2 is formed in the inner surface of the tip of the nozzle cylinder 16a facing the tip of the core 13d.
1 and a pair of shallow grooves 16a3, 16a
a3 is formed symmetrically in the tangential direction of the recess 16a2. The nozzle cylinder 16a is attached to the adapter 13 in a watertight manner by inserting a base into an annular groove 13e formed around the core 13d.
The groove 13d1 communicates with the inside of the inner cylinder 13c of the adapter 13 through the through hole 13f. Also, the nozzle cylinder 16a
An annular engaging ridge 16a4 is formed on the outer surface of the base.

A seal body 14 is slidably mounted on the adapter 13 (FIG. 2).

The sealing member 14 has a partition wall 14a1 at an intermediate portion.
An upper and lower seal part 14b is formed on the outer periphery of the upper part of a cylindrical body 14a having
3 can be inserted into the inner cylinder 13c, and the inner cylinder 13c can be movably sealed.

The upper end of the shaft 23a of the large piston 23 is inserted into the lower part of the cylinder 14a (FIGS. 2 and 5). The outer diameter of the upper end of the shaft 23a is reduced over two steps, and the inner surface of the cylindrical body 14a is also stepped in conformity with the shaft 23a. A horizontal groove 14a2 is formed in the lower surface of the partition wall 14a1 in the diameter direction, and vertical grooves 14a3, 14 which are continuous with both ends of the horizontal groove 14a2 are formed in the inner surface of the cylindrical body 14a.
a3 is formed (FIGS. 6 and 7). Therefore, even if the upper end of the shaft 23a of the large piston 23 is inserted into the cylindrical body 14a (FIG. 2) and the upper end surface of the shaft 23a contacts the lower surface of the partition wall 14a1, the upper part of the shaft hole 23c of the large piston 23 remains. , The recess 23c2, the horizontal groove 14a2, and the vertical grooves 14a3, 14a3 communicate with the lower portion of the cylindrical body 14a.

On the upper part of the seal body 14, a pressing body 15 is mounted. The pressing body 15 forms a shallow and smooth concave portion 15a on the upper surface, and has three skirts 15b, 15c, 15c.
It is a cap-shaped member that forms d coaxially. The outer diameter of the outer skirt 15b is slightly smaller than the inner diameter of the outer cylinder 13b of the adapter 13, and the inner diameter of the intermediate skirt 15c is
It is slightly larger than the outer diameter of the cylindrical body 14a of the seal body 14. The outer diameter of the inner skirt 15d matches the inner diameter of the cylindrical body 14a. However, the middle skirt 15c is formed short, and the pressing body 15 is integrally connected to the seal body 14 by fitting the middle portion of the inner skirt 15d and below into the cylindrical body 14a. The pressing body 15 is
It is movable with respect to the adapter 13 together with the seal body 14.

A detachable cover 17 is attached to the nozzle 16 (FIG. 1). The cover 17 has a half-cylindrical main body 17a having a top surface 17a1 and a cylindrical projection 17b for accommodating the nozzle 16 formed therein.
When the nozzle 16 is mounted on the nozzle 16 such that the nozzle 16 is housed in the protruding portion 17b, the top surface 17a1 can cover about 1/2 or more of the upper surface of the pressing body 15 (two-dot chain line in FIG. ). The cover 17 has an annular engagement ridge 17b1 formed on the inner surface of the base of the projection 17b.
Since 7b1 exceeds the engaging ridge 16a4 on the nozzle 16 side, the nozzle 16 can be detachably mounted.

The operation of the chemical injection container is as follows.

First, when the cover 17 is removed, the nozzle 1
6. Since the entire pressing body 15 can be exposed to the outside, the index finger F1 is then hung on the upper surface of the pressing body 15,
The container body 11 is grasped with another finger, and the nozzle 16 is directed toward the affected part of the throat and the whole is held (FIG. 8). At this time, the small piston 22, the large piston 23, the seal body 14,
The pressing body 15 is pushed up as a whole and stands by (FIGS. 1 and 2). The compression spring 26 is a small piston 2
This is because the pressing body 15 is attached to the upper end of the large piston 23 urged upward by the small piston 22 via the seal body 14.

Next, when the pressing body 15 is pressed downward via the index finger F1, the pressing body 15 can push down the large piston 23 and the small piston 22 of the pump mechanism 20 via the seal body 14 (see FIG. 1). FIG. 9 (A)). Therefore, the air in the space A below the seal portion 22b of the small piston 22 in the cylinder 21 and the air in the suction tube 21c are compressed by the small piston 22 and the hole 22 in the small piston 22 is compressed.
c, a tube 22 made of an elastic material through the through hole 22c1.
e can be pushed up from the inside to flow into the space B above the seal portion 22b.

Subsequently, when the pressing force applied to the pressing body 15 is removed, the small piston 22, the large piston 23, the seal body 14, and the pressing body 15 are moved upward integrally by the compression spring 26, and the original piston is moved. It returns to the standby state (FIG. 8B).

At this time, since the elastic tube 22e is in close contact with the outer periphery of the small piston 22 and closes the through hole 22c1, a negative pressure is generated in the space A, and the chemical in the container body 11 is
It is possible to suck into the space A via the suction tube 21c. While the small piston 22 and the large piston 23 are completely returning to the standby state, while the upper surface of the seal portion 23b of the large piston 23 does not reach the lower end of the packing 25, the through hole 12c of the cap 12 and the through hole The seal between the large piston 23 penetrating through 12c and the large piston 23 is incomplete (FIG. 3A). Therefore, during this time, the space C above the seal portion 23b communicates with the space D below the seal body 14, and therefore, the space D, the through-hole 12
Outside air can be introduced through c, the space C, and the through hole 23b1. The space D includes the through hole 13f and the groove 1 in the nozzle 16.
This is because 3d1 communicates with the outside through the nozzle hole 16a1.

When the pressing body 15 is pushed down again, the chemical solution sucked into the space A can flow into the space B in exactly the same manner as described above (FIG. 3A). Then, when the pressing body 15 is returned to the standby state, a new chemical solution can be sucked into the space A while holding the chemical solution in the space B (FIG. 13B).

Subsequently, when the pressing body is pressed down again, the pressure of the chemical in the space B rises, and the small piston 22 is pressed down relatively to the large piston 23 against the compression spring 26 ( FIG. Therefore, the conical slope of the upper end of the small piston 22 is separated from the conical step 23c1 of the shaft hole 23c of the large piston 23,
Open c. Therefore, the chemical in the space B can be ejected from the nozzle hole 16a1 of the nozzle 16 toward the affected part via the shaft hole 23c and the space D. The upper end of the shaft hole 23c is provided with a concave portion 23c2 at the upper end of the large piston 23,
No. 4 communicates with the space D via the horizontal groove 14a2 and the vertical grooves 14a3, 14a3 (FIG. 7).
This is because it communicates with the nozzle hole 16a1 through the groove 13d1 (FIG. 2).

When the chemical solution in the space B is injected in this manner, the pressure in the space B decreases, and the small piston 22
Return upward with respect to the large piston 23, the shaft hole 2
3c is closed, and thereafter, the chemical solution in the space A can flow into the space B according to the above-described operation principle. Therefore, thereafter, by repeating the pressing operation of the pressing body 15, it is possible to intermittently eject the liquid medicine to the affected part via the nozzle 16.

That is, the pressing body 15 operates the pump mechanism 20 via the seal body 14, and the pump mechanism 20
By repeatedly pressing the pressing body 15, the whole expands and contracts, and the chemical solution sucked from the lower part through the suction tube 21 c and the bottom hole 21 c 2 is discharged into the upper space D, and the nozzle 1
6 to the outside.

In the above description, the recess 16a2 and the groove 16a3 formed around the nozzle hole 16a1 of the nozzle 16
, 16a3 create an appropriate swirling direction flow for the chemical supplied to the tip of the nozzle 16 through the groove 13d1, thereby preventing the chemical ejected from the nozzle hole 16a1 from scattering finely. That is, the nozzle hole 16a
1. The shape of the recess 16a2 and the grooves 16a3, 16a3 is optimally set according to the properties of the chemical so that the chemical is ejected in a lump.

The outer cylinder 13b of the adapter 13 and the inner cylinder 1
An annular deep groove 13d formed between the pressing members 15c
When pressing the skirt, the skirt 15 outside the pressing body 15
b is stored (FIG. 2). Therefore, the deep groove 13d is a guide cylinder that guides the pressing body 15 in the axial direction.

When the cover 17 is not in use,
The upper surface of the pressing body 15 may be entirely covered so that the pressing body 15 is not inadvertently pressed.

The outer cylinder 13b of the adapter 13 is raised to substantially the same height as the upper surface of the pressing body 15 in the standby state, and has an upward cutout on the opposite side of the nozzle 16 into which the index finger F1 can enter. Can be provided. Index finger F
When pressing the pressing body 15 through the first finger 1, the forefinger F1
Can enter the notch so that the direction of the nozzle 16 can be correctly recognized, and the pressing body 15 is not inadvertently pushed by the outer cylinder 13b of the adapter 13 when not in use. The cover 17 includes the nozzle 16
Only can be protected.

The recess 15a on the upper surface of the pressing body 15 can be formed in a shallow, smooth groove shape in the same direction as the nozzle 16 (FIG. 10). Pressing body 1 according to the direction of recess 15a
The index finger F1 is put on the upper surface of the nozzle 5 so that the nozzle 16
Direction can be recognized correctly. The adapter 13 and the pressing body 15 at this time are formed by forming an axial guide groove 13c1 and a ridge 15b1 that engage with each other with respect to the former inner cylinder 13c and the latter outer skirt 15b (FIG. 11). ), Both can be positioned in the rotation direction. However, the guide groove 13c1 and the ridge 15b1
Is such that the nozzle 16 and the recess 15a are in the same direction,
After the relative rotation positions of the adapter 13 and the pressing body 15 are determined, the forming position and the shape thereof may be arbitrarily changed as long as the pressing body 15 can be moved relative to the adapter 13 in the axial direction. .

The present invention can be widely applied not only to the throat throat, but also to any other purpose of properly ejecting any other throat to a predetermined position. At this time, the nozzle hole 16a1, the concave portion 16a2 and the groove 16a
3 and 16a3 may be configured such that the chemical liquid is sprayed in the form of mist or fine particles by appropriately setting their shapes and sizes.

[0045]

As described above, according to the present invention, by combining the pump mechanism mounted on the mouth of the container body, the adapter, and the pressing body for operating the pump mechanism via the seal body, Even if the pressing body is pressed, the nozzle protruding from the adapter can be kept stationary and only the pump mechanism can be operated, so that the liquid medicine can be easily and correctly injected to a predetermined position. Has an effect.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of the entire configuration.

FIG. 2 is an enlarged view of a main part of FIG. 1;

FIG. 3 is an enlarged sectional view taken along line WW of FIG. 2;

FIG. 4 is an enlarged sectional view taken along line XX of FIG. 2;

FIG. 5 is an enlarged sectional view taken along line YY of FIG. 2;

FIG. 6 is an enlarged sectional view taken along line ZZ of FIG. 2;

FIG. 7 is a schematic explanatory view of a main part.

FIG. 8 is an explanatory view of a use state.

FIG. 9 is an explanatory diagram of an operation.

FIG. 10 is an external view of a main part showing another embodiment.

11 is an enlarged cross-sectional view taken along line X1-X1 in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 ... Container main body 11a ... Mouth 12 ... Cap 13 ... Adapter 14 ... Sealing body 15 ... Pressing body 16 ... Nozzle 17 ... Cover 20 ... Pump mechanism

Claims (5)

(57) [Claims] 1. A pump mechanism which is attached to an opening of the container body via a container body and a cap, and which expands and contracts the entire body to pump a chemical solution sucked from a lower portion to an upper portion, and is attached to an upper portion of the cap. An adapter, and a pressing body that operates the pump mechanism via a seal body slidably housed in the adapter, wherein the adapter has a side face provided with a nozzle that ejects a chemical solution from the pump mechanism. A chemical liquid ejecting container characterized in that: 2. The chemical liquid ejection container according to claim 1, wherein the seal body and the pressing body are integrally connected. 3. The chemical liquid ejecting container according to claim 1, wherein the adapter forms a guide cylinder for guiding the pressing body in an axial direction. 4. The chemical liquid ejecting container according to claim 1, wherein the nozzle is provided with a detachable cover. 5. The liquid medicine ejection container according to claim 4, wherein the cover covers an upper surface of the pressing body.