JP4894524B2 - Simple dispensing tool - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a simplified extraction instrument, directly mounted on a container mouth to extract and dispense a medical solution in the container directly from the container. <P>SOLUTION: This simplified extraction instrument is fittable to a mouth of the container, and includes: a hub: a cylindrical insert part formed at the lower surface of the hub; a puncture needle provided at the upper end of the hub and having a liquid passage communicated with the insert part; and a holding part formed at the lower surface of the hub to surround the insert part. A lure taper may be provided instead of the puncture needle. <P>COPYRIGHT: (C)2008,JPO&amp;INPIT

Description

  The present invention relates to a simple dispensing tool that can be easily attached to the mouth of a container.

  Usually, the chemical solution is often stored in a container. Containers for storing chemicals are made of glass, so-called vials whose container mouths are sealed with rubber stoppers, and the container body and stopper are integrally fixed together by a hinge part by glass or plastic, and the hinge part is broken. There are various forms such as ampules and simple containers used.

  When taking out a chemical solution from such a container, it takes a lot of time and effort to inject the chemical solution into the inside of the syringe using a syringe and then pour out and administer it again. Had to do.

  However, in particular, in a container in which a chemical solution is divided and sealed for each dose, it is only necessary to use all the chemical solution in the container, so there is no need to take a predetermined amount from the container. If it can be safely dispensed and administered from inside the container, it is not necessary to use a syringe only for collecting chemicals. Also, from the viewpoint of operation, if the process up to the administration of the drug solution is increased, there is a risk that an operation error will be caused by the increase in the process. Therefore, it is preferable that the drug can be directly dispensed and administered from the container.

  In view of this, for a normal vial, a transfer tool has been proposed in which two vials are connected and communicated to mix each drug (Patent Document 1). This has an insertion part with a communicating needle that can puncture the rubber stopper of the vial on both sides across the hub, and each vial is inserted into the insertion part from the container mouth direction. Then, the chemicals in both bottles are mixed together.

JP 2002-172151 A

  However, in the transfer tool as disclosed in Patent Document 1, it is assumed that the rubber stopper is punctured and used. Therefore, it cannot be used for a stopper that is not a rubber stopper, for example, a flexible container that is used by breaking the hinge. Therefore, in a container other than a vial, the medicine in the container must be once collected in a collecting tool such as a syringe, and then dispensed and administered from the collecting tool. Moreover, the said transfer tool has only the use for a chemical | medical solution mixing, and cannot administer a chemical | medical solution directly from a container. Therefore, a separate administration device is required when administering the drug solution. Therefore, a structure is required in which the container itself becomes the dispenser by connecting directly to the container mouth.

  An object of the present invention is to provide a simple dispensing tool that allows a chemical solution in a container to be directly dispensed and administered from the container by being directly attached to the container mouth.

Therefore, the present inventors
(1) A pouring tool that can be attached to the mouth of a container, and is a fluid that communicates with the hub, a cylindrical insertion portion formed on the lower surface of the hub, and the insertion portion provided at the upper end of the hub. A simple dispensing tool comprising a puncture needle having a flow path and a holding portion formed on the lower surface of the hub so as to surround the insertion portion.
(2) The simple extraction tool according to (1), wherein the insertion portion is a luer taper that is reduced in diameter downward.
(3) The simple dispensing tool according to (1) and (2), wherein a luer taper is provided instead of the puncture needle.
Since the insertion portion is fitted into the container port and the engagement piece is engaged with the container port, it can be easily and stably attached. Therefore, the simple dispensing tool does not come off from the container, and the chemical solution does not leak from a place other than the puncture needle (or luer taper). Also, by providing a luer taper instead of a puncture needle, the device can be used by connecting a luer taper (for example, a three-way stopcock or a filter built-in connector) in addition to pouring directly into another drug container or administering puncture. Etc.) and found out that it can be used.

  The simple dispensing tool of the present invention can be easily and stably attached to the container mouth, and can be directly dispensed / administered from the container and can be suitably used for medical treatment.

  Hereinafter, the simple extraction tool of this invention is demonstrated using figures. However, the present invention is not limited to the exemplary embodiments described in these drawings.

  FIG. 1 is a longitudinal sectional view of an embodiment of a simple dispensing tool of the present invention. Fig.2 (a)-(c) is a bottom view of the example of the implementation aspect of the holding | maintenance part shape of the simple extraction tool of this invention. Fig.3 (a)-(c) is a front view of the implementation example of a puncture needle shape about the simple dispenser of this invention. FIG. 4 is a front view of an embodiment in which a luer taper is provided for the simple dispensing tool of the present invention. FIG. 5 is a longitudinal cross-sectional view of the state in which the simple dispensing tool shown in FIG. 1 is attached to the container mouth of the chemical liquid container. FIG. 6 is a top view of a container whose outer periphery of the container opening is not cylindrical.

  FIG. 1 shows a disc-shaped hub 1, a tapered insertion portion 2 which is located at the center of the hub and protrudes downward from a flat lower surface and has a diameter reduced downward, and an insertion portion 2 of the hub. This is a simple dispensing tool including a puncture needle 3 formed on the opposite side through the hub and a holding portion 4 formed on the outer periphery of the lower surface of the hub. The liquid passage 5 communicates from the lower end of the insertion portion to the tip of the puncture needle. On the lower inner wall of the holding portion 4, an engagement piece 41 that protrudes toward the axial center is formed. Eight ribs 7 extending radially from the shaft center are formed on the upper surface side of the hub.

  By fitting the insertion portion 2 into the inner wall of the container mouth, the inner wall 4 and the engagement piece 41 of the holding portion are also engaged with the outer wall of the container mouth. Thereby, when the chemical liquid is poured out from the container, the simple dispensing tool does not fall out of the container due to the pressure of the chemical liquid. Thus, the simple dispensing tool can be easily and stably attached to the container mouth. Therefore, the container itself can be used as a dispenser.

  About the material of the simple extraction tool of this invention, if it does not react with the chemical | medical solution in a container, it will not specifically limit. Examples of the material used include polyethylene, polypropylene, polyethylene terephthalate, polycarbonate, ABS resin, and stainless steel.

  The hub 1 does not have to be a circular plate, but may be a flat plate shape or a truncated cone shape. However, it is preferable that at least the lower surface is a substantially flat surface because it is versatile. However, there is a dedicated container to which the simple dispensing tool of the present invention is applied, especially when the container opening of the dedicated container has a unique shape (the outer periphery of the container opening is recessed, the container opening has a notch portion, etc.) On the other hand, you may shape | mold in the lower surface shape fitted to the container port of a dedicated container.

  The insertion part 2 has a cylindrical shape protruding downward so that the outer wall can be fitted to the inner wall of the container mouth. However, when there is a dedicated container to which the simple dispensing tool of the present invention is applied, the design may be appropriately changed to a shape that can be fitted to the inner wall of the container mouth of the dedicated container. In particular, for a container in which the stopper and the container main body are fixed by a hinge part, it is assumed that the chemical solution in the container is collected by a syringe, and the syringe nozzle is connected to the container opening without connecting a needle to the syringe. Since there are many cases where the inner diameter shape of the container port is tapered so that the chemical solution can be collected by directly inserting it into the container, it is particularly preferable to have a tapered shape with a diameter decreasing downward.

  The holding portion 4 is formed on the lower surface of the hub 1 so as to surround the periphery of the insertion portion 2. In addition to fitting the outer wall of the insertion portion and the inner wall of the container mouth, the inner wall of the holding portion 4 is fitted to the outer wall of the container mouth, and the container mouth is held by the insertion portion 2 and the holding portion 4. When the chemical liquid is more poured out, it is possible to prevent the simple pouring tool from dropping from the container due to the pressure of the chemical liquid being applied to the lower surface of the insertion portion. Further, when used for a container having an annular rib projecting on the outer periphery of the container mouth, an engagement piece 41 projecting in the axial direction is formed on the lower inner periphery of the holding portion, and the engagement piece and the lower surface of the annular rib are further formed. It is possible to engage and fit more firmly. As described above, the design of the holding portion can be appropriately changed so as to conform to the shape of the outer wall of the container mouth.

  Moreover, about the range in which the holding | maintenance part 4 is formed, it is not restricted only to a cylinder shape, If a simple extraction tool does not drop from a container, it will not specifically limit. For example, when the container mouth is simply fitted between the inner wall of the holding portion and the outer wall of the insertion portion, it may be formed in a cylindrical shape as shown in FIG. 2 (a), or as shown in FIG. In the type in which the engagement piece is engaged with the container opening, at least a part of the cylinder is missing as shown in FIG. 2B so that the container opening can be pushed to the hub side from the engagement piece. It may be formed in a (C-shaped column shape or double bracket shape). Further, as shown in FIG. 2 (c), it may be provided in a four-leg shape in which the number of portions where the cylinder is missing is increased. By appropriately providing a portion lacking the holding portion, it can be applied to a container having a container opening that is not cylindrical as shown in FIG.

  The puncture needle 3 has a liquid flow path that communicates from the lower end of the insertion portion 2, and the tip shape of the puncture needle 3 is a shape having a flow outlet 61 of a side hole called a so-called rocket needle shown in FIG. Or a general needle shape as shown in FIG. The material is not particularly limited as long as it does not react with the chemical solution in the container. For example, polyethylene, polypropylene, polyethylene terephthalate, polycarbonate, ABS resin, stainless steel and the like can be used. About the method with which the hub 2 of the puncture needle 3 is equipped, if it is the same material as the hub 2, you may form integrally, you may form separately from the hub 2 and may adhere to the hub 2. Usually, plastic rocket needles are used for connecting to other chemical containers, and those used for direct administration to the human body are those made of stainless steel as shown in FIG. A general needle is preferably provided.

  Instead of the puncture needle 3, a luer taper may be formed as shown in FIG. In this case, the simple dispensing tool of the present invention can also be applied to a device (for example, a three-way cock or a filter built-in connector) to which a luer taper can be connected. Moreover, even when it is desired to administer directly from the container, it can be used as it is as an administration device if a general needle is connected to the luer taper. Furthermore, a hood having an internal thread provided on the inner wall may be formed so as to surround the lure taper so that the threaded connection can be established.

  The state which attached the simple extraction tool of this invention to the container A is shown in FIG. The state shown in FIG. 5 can be obtained by inserting the insertion portion 2 of the simple dispensing tool into the container mouth of the container A. At this time, the insertion portion 2 is fitted into the container port, and the engagement piece 41 is engaged with the annular rib on the outer periphery of the container port. Therefore, when pushing out the chemical solution from the container, there is no possibility that the simple dispensing tool is pushed out by the pressure of the chemical solution and falls off. Further, the drug solution in the container does not leak from other than the puncture needle (or luer taper), and it is possible to directly pour out from the container to the human body or other drug containers without using an administration tool such as a syringe.

  The simple dispensing tool of the present invention can be easily and stably attached to the container mouth as described above, and can be directly dispensed / administered from the container and can be suitably used for medical treatment.

The longitudinal cross-sectional view of the example of one embodiment of the simple extraction tool of this invention. (A)-(c) The bottom view of the implementation example of the holding | maintenance part shape of the simple extraction tool of this invention. (A)-(c) The front view of the implementation example of a puncture needle shape about the simple dispenser of this invention. The front view of the embodiment which provided the lure taper about the simple extraction tool of this invention. The longitudinal cross-sectional view of the state which attached the simple extraction tool shown by FIG. 1 to the container mouth of the chemical | medical solution container. The top view of the container whose container mouth outer periphery is not cylindrical.

Explanation of symbols

A container 1 hub 2 insertion part 3 puncture needle 4 holding part 41 engaging piece 5 luer taper 6 liquid flow path 61 flow path outlet 7 rib

Claims (3)

A pouring tool that has a rib extending outward from the center at a symmetrical position of the mouth of the container, and can be attached to the mouth of a flat container having a long diameter in the extending direction of the rib ,
A hub,
A cylindrical insertion part formed on the lower surface of the hub;
A puncture needle provided at an upper end of the hub and having a liquid flow path communicating with the insertion portion;
To the hub lower surface, it is seen including a formed holder so as to surround the insertion portion,
The holding portion has a double bracket shape in which a symmetrical position is missing,
Simple dispensing tool. The simple dispensing tool according to claim 1, wherein the insertion portion is a luer taper that decreases in diameter downward. The simple dispensing tool according to claim 1 or 2, wherein a luer taper is provided instead of the puncture needle.

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