JP2003284759A - Liquid absorbing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a liquid absorbing device which can be injected and absorbed in common use to both ampule and vial. <P>SOLUTION: A second liquid absorber 5 is fitted on a periphery of a first liquid absorber 3 contractibly in a longitudinal direction in such a manner that the second liquid absorber 5 is contracted when the first liquid absorber 3 is inserted into a rubber stopper of a vial, and the second liquid absorber 5 is inserted into an ampule, and a second absorbing opening 6 of the second liquid absorber 5 is brought into close contact with an inner wall of the ampule when a liquid is absorbed from the ampule. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to bottles with rubber stoppers such as vials and bottles, and liquid absorbents capable of sucking fluid from ampoule bottles, and more particularly to synthetic resin liquid absorbents.

[0002]

2. Description of the Related Art As one example of the use of bottles with rubber stoppers such as vials and bottles and ampoule bottles, for example, take raw food from a vial bottle with a rubber stopper and put it in an ampoule bottle containing powder. It is practiced to inject the drug solution to adjust the drug solution, and then to suck the mixed drug solution from the ampoule bottle to inject the drug solution into the syringe body.

As a work in this case, when performing each work with one metallic injection needle, the injection needle is pierced into the rubber stopper of the vial bottle to take the raw food inside the syringe, and the raw food is injected into the ampoule bottle. It is possible. Therefore, a single injection needle can be used to generate a mixed drug solution in the ampoule bottle. However, when aspirating the drug solution created in this way from the ampoule bottle with the same injection needle, the drug solution that has accumulated at the bottom of the ampoule bottle may be removed depending on the length of the injection needle, the depth of the ampoule bottle, the diameter of the opening of the ampoule bottle, etc. It may not be possible to completely aspirate. The reason is that the length of the injection needle is short with respect to the depth of the ampoule bottle from the opening to the bottom, and the tip of the injection needle does not reach the bottom of the ampoule bottle.

Further, as shown in FIG. 5, the ampoule bottle is leveled or tilted so that the opening 12c thereof is slightly downward, and the liquid E accumulated near the opening 12c.
It is also common to inhale. In this case, the liquid in the ampoule bottle 12 collects in the corner 12b of the enlarged shape from the opening 12c to the container body, and the liquid can be easily sucked even if the injection needle C is short. However, when the metal injection needle C is inserted to suck the liquid E in the corner 12b, the tip of the metal injection needle C may not reach the inner wall of the corner 12b. Further, even when reaching the inner wall of the corner portion 12b, the tip shape of the metal needle C is a considerably acute inclined shape and the suction port C1 is formed at the tip, so that a part of the suction port C1 is a corner. The liquid may not be sucked just by being immersed in the liquid of the portion 12b.

Particularly, in consideration of troubles such as erroneous puncture and safety of handling, a suction member made of synthetic resin may be used instead of the injection needle made of metal. As shown in FIG. 6, in the suction body D made of synthetic resin, in consideration of the case of piercing a rubber stopper such as a vial bottle or a bottle, the tip portion is usually formed in a pointed shape, and the tip end is sucked. The one without the mouth D1 is used. The suction port D1 is formed on the side surface portion at a position slightly retracted from the tip portion. Even if an attempt is made to suck the liquid E in the corner 12b of the ampoule bottle 12 using the synthetic resin suction body D, since the suction port D1 of the suction body D is provided on the side surface, The liquid E accumulated in the corner portion 121b can only be sucked up to the middle thereof, and a part of the liquid E in the corner portion 12b remains (FIG. 6).

[0006] With the above-mentioned syringe or suction body, the liquid in the ampoule bottle cannot be sucked cleanly. Therefore, it is conceivable to use a suction body dedicated to the ampoule bottle, in addition to the injection needle that can be pierced into the vial bottle. By doing so, you can cleanly suck from both types of bottles,
It is necessary to prepare two types of liquid absorbers. For this reason, the work becomes complicated, and improvement is strongly requested from the site.

[0007] For example, as a liquid absorbent from a vial, a liquid absorbent having a narrow-mouthed vial needle similar to a metal needle at the tip is known. An example of this is JP-A-9-84.
The one disclosed in Japanese Patent No. 875 is known. This publication discloses that an accordion-like protector is provided around the injection needle. This protects accidents such as accidentally piercing a person with a sharp-pointed injection needle by the protector, and when the rubber stopper of the vial is pierced, the bellows-shaped protector contracts, so that only the injection needle is You can pierce the rubber stopper. By using a dedicated aspirator like this, it is possible to prevent accidental accidents such as accidental sticking of the injection needle, but with this injection needle, the problems described above occur during aspiration. Had to prepare.

[0008]

[Problems to be Solved by the Invention] If a dedicated liquid absorbent is used for bottles with rubber stoppers such as vials and ampoule bottles, it is possible to cleanly and completely suck the liquid chemicals from the respective bottles. Since it is necessary to use separate dedicated liquid absorbents and the workability is poor, there has been a demand for a suction body that can be injected and sucked commonly in both an ampoule bottle and a vial bottle.

According to the present invention, like a metal injection needle, a rubber stopper can be punctured to aspirate from a vial bottle or the like, and can also be inserted into an ampoule bottle to completely aspirate a medicinal solution from an ampoule bottle or the like. To provide.

[0010]

In order to achieve the above object, the invention according to claim 1 is a needle-like first liquid absorbent having a first suction port capable of piercing the rubber stopper of a bottle with a rubber stopper. And a second liquid absorber having a second suction port at the tip, which is fitted to the first liquid absorber and has a diameter smaller than that of the opening of the ampoule bottle in the longitudinal direction of the first liquid absorber. When the first stopper is attached to the rubber stopper so as to be contractible, the second sucker contracts to puncture the first suction port, and at the same time, from the ampoule bottle. When sucking the fluid, the second liquid suction device is inserted into the ampoule bottle, and the second liquid suction device
The suction port sucks the liquid in the ampoule bottle.

In this structure, by properly using the two liquid absorbers provided in one liquid absorbent, it is possible to cleanly suck the liquid such as the drug solution from both the ampoule bottle and the vial bottle without leaving the fluid in the ampoule bottle and the vial bottle. Moreover, since you can work with one liquid absorbent,
The work is easy and it is hard to make mistakes.

According to a second aspect of the present invention, in the suction body according to the first aspect, the second suction port of the second liquid absorber is made of a material that can be deformed following the wall surface of the ampoule bottle. Even if the ampule bottle is different in type and shape, the liquid in the ampoule bottle can be sucked. In particular, the second suction port does not completely deform to the shape of the wall surface of the ampoule bottle, and even if there is a small gap between the two, it can be almost sucked by the negative pressure during suction, so strictly It can be used without deforming to the shape of the bottle.

According to a third aspect of the present invention, in the liquid absorbent according to the first aspect, the first suction device is made of rigid plastic and the second suction device is made of rubber or elastomer. The rubber stopper is pierced by the first liquid absorber, and the second liquid absorber is contracted to absorb liquid from the first liquid absorber, while the second liquid absorber is extended for the ampoule bottle. , The liquid medicine can be sucked cleanly from the second liquid suction device.
Even when sucking the liquid collected in the corner of the ampoule bottle, the second suction port of the second suction device can be elastically deformed along the shape of the corner, so that the shape of the R is severe like the corner. Also, the liquid in this part can be suctioned cleanly.

According to a fourth aspect of the present invention, in the liquid absorbent according to the second or third aspect, the first suction port of the first liquid absorber is opened in a side surface portion of the first liquid absorber, Since the tapered projection is provided at the tip of the first suction port, it is possible to puncture a rubber stopper such as a vial bottle smoothly without generating rubber scraps.

According to a fourth aspect of the present invention, in the liquid absorbent according to any one of the second to fourth aspects, the second suction port of the second suction device is opened obliquely to the tip of the second suction device. Since the tip portion of the second suction port is formed slightly longer than the tip portion of the first suction device in the normal state, when sucking the liquid accumulated in the corner of the ampoule bottle, the second suction port is formed. Can be elastically deformed and sucked according to the shape of the corner.

[0016]

1 to 3 show an example of an embodiment of the present invention. The liquid absorbent 1 is a syringe-shaped container body 2
The first liquid absorber 3 is connected to the end of the by means of fitting or screwing. In the first embodiment, the first liquid absorber 3 for the liquid absorbent 1 is fitted onto the end of the container body 2. The first liquid suction device 3 is made of plastic and has a needle-shaped first suction port 4 at its tip.
Is equipped with. The second liquid absorber 5 is fitted on the first liquid absorber 3. The second liquid absorber 5 is made of rubber or elastomer and is attached to the first liquid absorber 3 so as to be capable of expanding and contracting in the longitudinal direction. The second liquid suction device 5 is provided with a second suction port 6 at the tip thereof, and the second suction port 6 is formed to be inclined and normally slightly protrudes from the first suction port 4.

A state in which the liquid absorbent 1 is used will be described.
When puncturing a rubber stopper of a bottle with a rubber stopper such as a vial (herein referred to as the vial bottle 10) for sucking the solution, as shown in FIG. The first suction port 4 of No. 3 is pierced into the rubber stopper 11 to communicate with the inside. At this time, the second liquid absorber 5 comes into contact with the rubber stopper 11 and contracts. In this state, the fluid in the vial bottle 10 is sucked.

Next, as shown in FIG. 3, the sucked solvent is injected into the ampoule bottle 12 to dissolve the powder in the ampoule bottle 12. At this time, the second liquid suction port 6 of the second liquid suction device 5 is extended to the original state and protrudes from the first suction port 4, but the second liquid suction device 5 is the inner diameter of the opening of the ampoule bottle 12. Since it has a smaller outer diameter, it can be inserted into the ampoule bottle 12.

The ampoule bottle 12 produced in this way
The solution E therein is sucked again with the same liquid absorbent 1. Normal,
The amount of the solution E in the ampoule bottle 12 is very small, and the solution E shown in FIG.
As shown in (A), the ampoule bottle 12 is leveled or tilted downward so that the solution E is supplied to the corner portion 1 of the ampoule bottle 12.
Collect in 2b. With the ampoule bottle 12 in such a state, the second liquid absorber 5 is inserted into the ampoule bottle 12. At this time, as shown in FIG. 3 (A), the second liquid absorber 5 has the corner portion 1
Since the second suction port 6 is pressed against 2b and elastically deforms to a shape along the wall surface of the corner portion 12b, and the second suction port 6 comes into contact with the wall surface of the corner portion 12b as much as possible, the liquid in the corner portion 12b can be sucked cleanly. . At this time, the second suction device 5 is made of a flexible material, the second suction port 6 follows the wall surface of the ampoule bottle, and the liquid remaining on the wall surface can be suctioned (though not completely adhered). Thereby, the liquid can be sucked even when the suction port formed in the rigid needle tube cannot suck the liquid.

The ampoule bottle 12 is shallow and the second
When the liquid absorber 5 is inserted up to the bottom 12a of the ampoule bottle 12 and suction is performed from here, as shown in FIG. 3 (B), the second suction port 6 made of rubber or air elastomer is placed on the bottom 12a. It is partially deformed according to the shape and follows the shape of the bottom 12a. Therefore, from the second suction port 6 to the ampoule bottle 12
You can cleanly suck the liquid medicine.

FIG. 4 shows a modified example of the first liquid absorber relating to the second embodiment. The same parts as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted. The first liquid absorber 23 is made of rubber or elastomer, an acute-angled protrusion 23a is formed at the tip of the first liquid absorber 23, and the first suction port 24 has the protrusion 2
It is provided on the side surface slightly behind 3a, that is, on the inclined surface 23b. In the second embodiment, the second liquid absorber 25 is inserted into the ampoule bottle 12, and the corner portion 1 of the ampoule bottle 12 is inserted.
Aspirate the liquid accumulated in 2b. At that time, the first liquid absorber 2
Since the first suction port 24 of No. 3 is not provided at the tip,
Although the suction of the liquid E located below the suction port 24 becomes a problem, in the second embodiment, the second liquid absorber 25 is provided by being fitted to the first liquid absorber 23. Second of the liquid container 25
Since the liquid E is sucked from the suction port 26, the liquid E can be sucked almost completely.

Although the second suction devices 5 and 25 are externally fitted and fixed to the first suction devices 3 and 23, if the fixation is insufficient, the second suction devices 5 and 25 are fixed to the second suction devices 5 and 25. The end portions on the opposite side of the suction ports 6 and 26 may be fixed to the first suction devices 3 and 23 by using a joining means such as bonding.

In the above-described embodiment, the second suction devices 5, 2
5 is externally fitted to the first suction devices 3, 23, and the first suction devices 3, 2,
It is attached so that there is almost no gap between the third suction device 5 and the second suction device 5, 25. Therefore, when aspirating the liquid,
By applying negative pressure, it can be done efficiently,
preferable.

However, when the contraction allowance of the second suction devices 5 and 25 is insufficient, a gap may be provided between them. In that case, make sure that the fluid does not enter between them.
In the state shown in FIG. 1, a seal portion is provided between the first suction port 4 and the inner surface of the second suction device 5, and when the second suction device 5 contracts, this seal portion causes the first suction port 4 to move. To be slidable against the outer diameter of. The seal portion can be formed integrally with the second suction device 5 or provided separately, but it is preferable to provide the seal portion integrally because the number of parts is reduced.

[0025]

According to the present invention, the second liquid absorber is fitted around the first liquid absorber so as to be contractible in the longitudinal direction, and when the rubber stopper such as a vial bottle is punctured with the first liquid absorber. Is designed such that the second liquid absorber contracts, and when the fluid is sucked from the ampoule bottle or the like, the second liquid absorber is inserted into the ampoule bottle, Since the suction port follows the wall shape of the ampoule bottle, liquid can be sucked cleanly from the ampoule bottle.

Further, when the second liquid absorber is made of rubber or elastomer, it can be elastically deformed following the shape of the corner and bottom of the ampoule bottle, so that the liquid in the ampoule bottle can be sucked cleanly.

[Brief description of drawings]

FIG. 1 shows a liquid absorbent according to a first embodiment of the present invention.

FIG. 2 is a diagram showing a case where the liquid absorbent of FIG. 1 is used in a vial bottle.

FIG. 3 is a diagram showing a case where the liquid absorbent of FIG. 1 is used in an ampoule bottle. FIG. 3 (A) shows the case of sucking the liquid at the corner of the ampoule bottle, and FIG. 3 (B) shows the case of sucking the liquid at the bottom of the ampoule bottle.

FIG. 4 is a partially enlarged sectional view of a suction device according to the second embodiment.

FIG. 5 is a diagram illustrating a state where a conventional syringe is used to suck liquid in an ampoule bottle.

FIG. 6 is a diagram illustrating a state where a liquid in an ampoule bottle is being sucked using a synthetic resin suction device.

[Explanation of symbols]

1 liquid absorption 2 Liquid absorbing container body 3 First liquid absorber 4 First suction port 5 Second liquid absorber 6 Second suction port 10 vials 11 rubber stopper 12 ampoule bottle

Claims (5)

[Claims] 1. An injection needle-shaped first liquid absorber provided with a first suction port capable of piercing the rubber stopper of a bottle with a rubber stopper,
A second liquid absorber fitted to the first liquid absorber and having a smaller diameter than the opening of the ampoule bottle and having a second suction port at the tip is attached so as to be contractible in the longitudinal direction of the first liquid absorber. When piercing the rubber stopper with the first liquid suction device, the second liquid suction device is contracted to puncture the first suction port, and when the fluid is sucked from the ampoule bottle. The second liquid absorber is inserted into the ampoule bottle, and the liquid in the ampule bottle is sucked by the second suction port of the second liquid absorber. 2. The liquid absorbent according to claim 1, wherein the second
The second suction port of the liquid absorber is made of a material that can be deformed following the wall surface of the ampoule bottle. 3. The liquid absorbent according to claim 2, wherein the first
The liquid absorber is made of rigid plastic, and the second liquid absorber is made of rubber or elastomer. 4. The liquid absorbent according to claim 2 or 3, wherein the first suction port of the first liquid suction device is opened in a side surface portion of the first liquid suction device, and is located at a tip of the suction port. It is characterized by having a tapered projection. 5. The liquid absorbent according to any one of claims 2 to 4, wherein the second suction port of the second suction device is formed so as to be inclined and opened at the tip of the second suction device, The tip portion is characterized in that it is disposed slightly longer than the tip portion of the first suction device in the normal state.