JP3997811B2 - Liquid absorption - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a bottle with a rubber stopper such as a vial bottle or a bottle, and a liquid absorbent capable of sucking a fluid from an ampule bottle, in particular, a liquid absorbent made of a synthetic resin.
[0002]
[Prior art]
One example of the use of bottles with rubber stoppers such as normal vials and bottles and ampoule bottles is, for example, taking raw food from vials with rubber stoppers and pouring them into ampoule bottles containing powder. After adjustment, the mixed drug solution is sucked from the ampoule bottle and injected into the syringe body.
[0003]
In this case, when each work is performed with one metal injection needle, it is possible to stab the injection needle into the rubber stopper of the vial and take the raw food inside the syringe and inject the raw food into the ampule bottle. It is. Therefore, a mixed drug solution can be generated in an ampoule bottle using a single injection needle. However, when the drug solution created in this way is sucked from the ampoule bottle with the same injection needle, the drug solution accumulated at the bottom of the ampoule bottle depends 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 aspirate completely. The reason is that the length of the injection needle is short with respect to the depth of the ampule bottle from the opening to the bottom, and the tip of the injection needle does not reach the bottom of the ampule bottle.
[0004]
In addition, as shown in FIG. 5, the ampoule bottle is leveled or inclined so that its opening 12c is slightly lower, and the liquid E accumulated near the opening 12c is often sucked. ing. In this case, the liquid in the ampoule bottle 12 collects in the enlarged corner 12b 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 at the corner 12b, the tip of the metal injection needle C may not reach the inner wall of the corner 12b. Even if the inner wall of the corner portion 12b is reached, the tip shape of the metal needle C is a sharply inclined shape, and the suction port C1 is formed at the tip thereof. The liquid may not be sucked only by being immersed in the liquid of the portion 12b.
[0005]
In particular, a synthetic resin suction body may be used in place of a metal injection needle in consideration of trouble countermeasures such as erroneous puncture and safety of handling. As shown in FIG. 6, in the suction body D made of synthetic resin, in consideration of the case of puncturing a rubber stopper such as a vial or a bottle, the tip portion is usually formed in a sharp shape, and the tip is sucked. The one in which the mouth D1 is not formed is used. The suction port D1 is formed in the side surface portion at a position slightly retracted from the tip portion. Even if the suction body D made of the synthetic resin is used to suck the liquid E in the corner portion 12b of the ampoule bottle 12 as described above, the suction port D1 of the suction body D is provided on the side surface. As a result, the liquid E accumulated in the corner portion 121b can be sucked only halfway, and a part of the liquid E in the corner portion 12b remains (FIG. 6).
[0006]
With the syringe and suction body as described above, the ampule bottle liquid cannot be sucked cleanly. Therefore, it is conceivable to use a suction body dedicated to an ampule bottle, separately from the injection needle that can be inserted into the vial bottle.
[0007]
By doing so, it is possible to cleanly draw from both types of bottles, but it is necessary to prepare two types of liquid absorbers. Therefore, the work becomes complicated, and improvement is strongly demanded from the field.
[0008]
For example, as a liquid absorption from a vial, a liquid absorption having a narrow vial needle similar to a metal needle at the tip is known. An example of this is known as Japanese Patent Laid-Open No. 9-84875. This publication discloses a bellows-like protector provided around the injection needle. In this case, the protector prevents accidental accidents such as a needle with a sharp tip from being accidentally stuck into a person. It can be inserted into a rubber stopper.
[0009]
If a dedicated suction device is used in this way, it is possible to prevent accidents such as accidental puncture of the injection needle. However, since this needle causes the problems described above during suction, another suction device is used. It was necessary to prepare.
[0010]
[Problems to be solved by the invention]
For each bottle with rubber stopper such as a vial and ampoule bottle, etc., if you use each dedicated liquid absorption, you can aspirate the chemical solution etc. completely from each bottle, but use separate dedicated liquid absorption Since it is necessary and the workability is poor, a suction body that can be used for injection and suction in common for both ampoule bottles and vial bottles has been desired.
[0011]
The present invention provides a liquid-absorbing liquid that can be punctured into a rubber stopper in the same manner as a metal injection needle and sucked from a vial or the like, and can be inserted into an ampoule bottle or the like so that a chemical solution can be completely sucked from the ampoule bottle or the like. It is in.
[0012]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the first invention is provided with an injection needle-like first liquid absorber provided with a first suction port capable of being inserted into the rubber stopper of a bottle with a rubber stopper, and the first liquid absorber. Is attached to the rubber stopper so as to be shrinkable in the longitudinal direction of the first liquid absorber. The second liquid absorber is attached to the rubber stopper and is smaller in diameter than the opening of the ampoule bottle. When puncturing the first suction device, the second suction device is contracted to puncture the first suction port, and when sucking fluid from the ampule bottle, the second suction device is punctured. The liquid container is inserted into the ampule bottle, and the liquid in the ampule bottle is sucked by the second suction port of the second liquid sucker.
[0013]
In this configuration, by properly using two liquid absorbers provided in one liquid absorption liquid, fluid such as a chemical liquid can be neatly sucked from both the bottles without leaving them in the ampoule bottle and the vial bottle. In addition, since it is possible to work with a single liquid-absorbing liquid, the work is easy and it is difficult for erroneous work to occur.
[0014]
According to a second aspect of the present invention, in 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 ampule bottle. Even so, the liquid in the ampule bottle can be sucked. In particular, the second suction port does not completely deform into the shape of the wall surface of the ampoule bottle, and even if there is a slight gap between them, it can be sucked almost by the negative pressure during suction, so strictly It can be used without being deformed into a shape that conforms to the shape of the bottle.
[0015]
According to a third invention, in the first invention , the first suction device is made of rigid plastic, and the second liquid suction device is made of rubber or elastomer. The device is punctured and the second liquid absorber can be reduced to absorb liquid from the first liquid absorber, and the second liquid absorber is extended to the ampoule bottle to clean the chemical liquid from the second liquid absorber. Can suck. When sucking the liquid accumulated 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. Even this part of liquid can be sucked cleanly.
[0016]
According to a fourth invention, in the second or third invention , the first suction port of the first liquid absorber is opened at a side surface of the first liquid absorber, and is tapered at the tip of the first suction port. Therefore, even when puncturing a rubber stopper such as a vial, it can be smoothly punctured without generating rubber scraps.
[0017]
According to a fifth invention, in any one of the second to fourth inventions , the second suction port of the second suction device is formed to be inclined and open at the tip of the second suction device. Since it is arranged slightly longer than the tip of the first suction device in the normal state, the second suction port is elastic to match the shape of the corner when sucking the liquid accumulated in the corner of the ampoule bottle. Can be deformed and sucked.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
1 to 3 show an example of an embodiment of the present invention. The liquid absorption 1 is formed by connecting the first liquid absorber 3 to the end of a syringe-like container body 2 by fitting or screwing. In the first embodiment, the first liquid absorber 3 for the liquid absorption 1 is fitted on the end of the container body 2. The first liquid absorber 3 is made of plastic and includes a needle-like first suction port 4 at the tip. A 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 stretchable in the longitudinal direction. The second liquid absorber 5 has a second suction port 6 at the tip, and the second suction port 6 is formed to be inclined and normally protrudes slightly from the first suction port 4.
[0019]
A state in which the liquid absorbing liquid 1 is used will be described. When puncturing a rubber stopper of a bottle with a rubber stopper such as a vial bottle or a bottle (here, referred to as a vial bottle 10) in order to suck the solution, as shown in FIG. The first suction port 3 is punctured into the rubber stopper 11 to communicate with the inside. At this time, the second liquid absorber 5 contacts the rubber stopper 11 and contracts. In this state, the fluid in the vial 10 is aspirated.
[0020]
Next, as shown in FIG. 3, the sucked solvent is poured 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 extends to the original state and protrudes from the first suction port 4, but the second liquid suction device 5 has an inner diameter of the opening of the ampoule bottle 12. Can be inserted into the ampoule bottle 12.
[0021]
The solution E in the ampoule bottle 12 generated in this way is again sucked with the same liquid absorption 1. Usually, the amount of the solution E in the ampoule bottle 12 is very small. As shown in FIG. 3A, the ampoule bottle 12 is horizontally or inclined downward, and the solution E is poured into the corner of the ampoule bottle 12. Collect in part 12b. With the ampoule bottle 12 in such a state, the second liquid absorber 5 is inserted into the ampoule bottle 12.
[0022]
At this time, as shown in FIG. 3A, the second liquid absorber 5 is pressed against the corner portion 12b and elastically deformed into a shape along the wall surface of the corner portion 12b, so that the second suction port 6 has a corner as much as possible. Since it comes in contact with the wall surface of the portion 12b, 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, and the second suction port 6 follows the wall surface of the ampoule bottle so that the liquid remaining on the wall surface can be sucked (but not completely contacted). Thereby, even when the suction port formed in the rigid needle tube cannot suck the liquid, the liquid can be sucked.
[0023]
In addition, when the ampule bottle 12 has a shallow depth and the second liquid absorber 5 is inserted to the bottom 12a of the ampule bottle 12 and sucked from here, as shown in FIG. 3B, rubber or air last is used. The second suction port 6 made of mer is partially deformed according to the shape of the bottom 12a so as to follow the shape of the bottom 12a. Therefore, the chemical solution in the ampule bottle 12 can be sucked cleanly from the second suction port 6.
[0024]
FIG. 4 relates to the second embodiment and shows a modification of the first liquid absorber. Portions similar to those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted. The first liquid absorber 23 is made of rubber or elastomer, and an acute angle protrusion 23a is formed at the tip of the first liquid absorber 23, and the first suction port 24 is a side surface slightly behind the protrusion 23a, that is, an inclined surface. It is provided on the surface 23b.
[0025]
In the second embodiment, the second liquid absorber 25 is inserted into the ampoule bottle 12 to suck the liquid accumulated in the corner 12b of the ampoule bottle 12. At that time, since the first suction port 24 of the first liquid absorber 23 is not provided at the tip, suction of the liquid E located below the first suction port 24 becomes a problem, but in the second embodiment, The second liquid absorber 25 is fitted on the first liquid absorber 23, and the liquid E is sucked from the second suction port 26 of the second liquid absorber 25, so that the liquid E is almost completely removed. Can suck.
[0026]
Note that the second suction devices 5 and 25 are externally fitted and fixed to the first suction devices 3 and 23. However, when the fixing is insufficient, the second suction ports 6 of the second suction devices 5 and 25 are used. , 26 may be fixed to the first aspirators 3 and 23 by using bonding means such as adhesion.
[0027]
In the above-described embodiment, the second suction devices 5 and 25 are externally fitted to the first suction devices 3 and 23, and there is almost no gap between the first suction devices 3 and 23 and the second suction devices 5 and 25. It is installed so that there is no. Therefore, since negative pressure is applied when sucking the liquid, it can be carried out efficiently, which is preferable.
[0028]
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, a seal portion is provided between the first suction port 4 and the inner surface of the second suction device 5 in the state shown in FIG. When the two suction device 5 contracts, it can slide with respect to the outer diameter of the first suction port 4. The seal portion can be formed integrally with the second suction device 5 or provided separately. However, it is preferable to provide the seal portion integrally because the number of parts is reduced.
[0029]
【The invention's effect】
In the present invention, the second liquid absorber is fitted around the first liquid absorber so as to be shrinkable in the longitudinal direction. When the first liquid absorber is punctured into a rubber stopper such as a vial, the second liquid absorber is inserted. The liquid container is contracted, and when sucking fluid from an ampoule bottle or the like, the second liquid absorber is inserted into the ampoule bottle, and the second suction port of the second liquid absorber is the ampoule bottle. Because it follows the wall surface shape, liquid can be sucked cleanly from the ampoule bottle.
[0030]
Further, when the second liquid absorber is made of rubber or elastomer, it can be elastically deformed following the shape of the corners and bottom of the ampoule bottle, so that the liquid in the ampoule bottle can be sucked cleanly without leaving.
[Brief description of the 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 absorption of FIG. 1 is used in a vial.
FIG. 3 is a view showing a case where the liquid-absorbing liquid of FIG. 1 is used in an ampoule bottle. 3A shows a case where the liquid at the corner of the ampoule bottle is sucked, and FIG. 3B shows a case where the liquid at the bottom of the ampoule bottle is sucked.
FIG. 4 is a partial enlarged cross-sectional view of an aspirator according to a second embodiment.
FIG. 5 is a diagram illustrating a state in which a liquid in an ampule bottle is sucked using a conventional syringe.
FIG. 6 is a diagram illustrating a state in which a liquid in an ampule bottle is sucked using a synthetic resin suction device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Liquid absorption 2 Liquid absorption container main body 3 1st liquid absorber 4 1st suction port 5 2nd liquid suction device 6 2nd suction port 10 Vial bottle 11 Rubber stopper 12 Ampoule bottle

Claims (3)

An injection needle-like first liquid absorber provided with a first suction port capable of being inserted into the rubber stopper of the bottle with the rubber stopper;
Is fitted to the first liquid suction device and a smaller diameter than the opening of the ampoule, longitudinally contractible mounted in the second liquid suction device having a second suction port of the first liquid suction device to the distal end And
When puncturing the first liquid suction unit to the rubber plug, the first suction port and the second liquid suction device is contracted with adapted to be punctured to aspirate fluid from the ampoule the time, the second liquid suction device is inserted into the ampoule, being adapted to suck the liquid in the ampoule by the said second suction port of the second liquid suction device,
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, and is formed to be inclined and open at the tip of the second suction device. The part is disposed slightly longer than the tip of the first suction device in a normal state . The liquid-absorbing liquid according to claim 1 ,
The first liquid-absorbing device consists of rigid plastic, liquid absorber second liquid suction device is characterized by comprising a rubber or elastomer. The liquid-absorbing liquid according to claim 1 or 2 ,
Liquid absorber to the first suction port of the first liquid suction unit is opened in the side surface portion of the first liquid suction device, characterized in that it comprises a protrusion of tapered tip than said suction port.

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