JPS646824Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improvement in an apparatus for infusing a liquid by inserting an infusion needle or the like into a rubber stopper of a container in order to discharge the liquid in the container or mix it with a different type of liquid.

Infusion devices are often used for mixing and injecting medical solutions, etc. For example, when injecting one drug solution into different drug containers, infusion devices conventionally consist of a double-edged needle and a disc-shaped collar fitted into the center of the same needle. The device was inserted into the rubber stopper of one container, the other end of the double-edged needle was inserted into the rubber stopper of the other inverted container, and the containers were stacked one on top of the other for infusion.

It is difficult to keep the container vertically upright using only the flange provided around the double-edged needle, and it is inconvenient that the container must be manually held. That is, in the case of a large amount of liquid or a concentrated solution, it takes a long time to infuse, which is inappropriate.

Such an infusion device has a configuration in which the collar of the infusion needle is placed in the center of a cylindrical body as a partition wall, the mouth of the drug solution container is inserted into and abuts the cylindrical body, and the upper and lower containers are supported by the cylindrical body ( Utility Model No. 53-156399, etc.) are known. However, the closer the cylindrical inner diameter and the outer diameter of the container opening, the higher the supporting ability, but the larger the difference in diameter, the more support will be required with the infusion needle inserted. I disliked the lack of versatility, such as the need to prepare a

Furthermore, when draining the liquid from the container or connecting it to other infusion equipment such as a medical infusion set, simply puncturing the infusion needle into the container may cause the needle to come out or leak, and the stopper, other nozzle, or tube may There were cases where the connection with other devices was poor.

In view of the above points, this invention has a simple structure and can be manufactured at low cost.
The purpose is to propose an infusion device that not only prevents liquid leakage, but also has good connections with other nozzles, pipes, etc., and can be fixed to both containers when they are stacked one on top of the other for infusion from one container to another. It is said that

That is, this invention consists of a main body consisting of an infusion needle consisting of a double-edged needle or a single-edged needle that pierces a rubber stopper of a drug solution container, and a flange provided around the infusion needle, and a flange that is pierced on at least one side of the flange. This infusion device is characterized by having a suction cup attached to the outer surface of the rubber stopper.

More specifically, the infusion device according to this invention, when stacking infusion containers one on top of the other for mixed injection, can fix both containers regardless of the outer diameter of the container, especially the rubber stopper, etc., making the infusion easy. Furthermore, when used as an infusion device such as an infusion set, it has the advantage that a pierced infusion needle can be easily fixed to a rubber stopper of a container, thereby preventing the needle from coming off or leaking.

Next, one embodiment of this invention will be described based on the drawings. FIG. 1 is a longitudinal cross-sectional side view when this device is used for infusion from container to container.

A double-edged needle 1 whose both ends can puncture a rubber stopper of a container is used as an infusion needle, and a disc-shaped collar 2 is provided around the outer periphery of the central portion of this double-edged needle 1.

The collar 2 here has a size corresponding to the diameter of the bottom of the container 10, and the suction cup 3, which has a diameter smaller than the diameter of the collar 2, is oriented with the opening surface of the suction cup 3 toward both tips of the double-edged needle 1. The structure is such that they are provided on each of the front and back surfaces of the tsuba 2.

Additionally, a rubber stopper 11 that closes the opening of the container 10 is provided.
Generally, a cap seal 12 made of metal or synthetic resin is often used, which has a thinner central part to make it easier to puncture the double-edged needle 1, and which integrally seals the open end of the container 10 and the rubber stopper 11. has been done.

Here, when using two containers 10 and injecting the liquid 13 from the container 10 to the other container 10 by inverting one and stacking it on top of the other, first insert a double-edged needle into the rubber stopper 11 of the lower container 10. 1, and the tip of the other double-edged needle 1 is pierced into the rubber stopper 11 of an inverted container 10, and the containers are stacked and placed on the suction cup 3. Then, the pair of front and back suction cups 3 provided on the collar 2 suck the rubber plug 11, so the rubber plug 11 is attracted with the collar 2 provided at the center of the double-edged needle 1 facing toward the center.
Both containers 10 are firmly fixed, and transfusion can be performed without manually grasping the containers. In the drawing, rubber stopper 1
Since the central part of the cap seal 1 is a recessed part, the cap seal 12 is in close contact with the cap seal 12 and is sucked by the suction cup 3.

Furthermore, if the diameter of the suction cup 3 is as large as that of the collar 2, it is possible to suction and adsorb it regardless of the size of the diameter of the rubber stopper 11, that is, the size of the opening diameter of the container 10. Furthermore, by moving the ears at the circumferential end of the suction cup 3, air can be easily introduced into the contact surface, making it easy to attach and detach the suction cup 3.

Above, we have explained the case where the diameter of the tsuba 2 is larger than that of the suction cup 3, but conversely, the diameter of the suction cup 3 is
If the diameter of the flange 2 and the suction cup 3 are large (see FIG. 2), the diameters of the collar 2 and the suction cup 3 may be the same (see FIG. 3). Needless to say, the shape of the collar 2 is not limited to a disk shape, but can also be a square, a polygon, or the like.

Furthermore, as shown in FIG. 4, instead of using the suction cup 3 on the entire surface of the collar 2, a suction cup 3a may be wound around the double-edged needle 1 in a band shape to partially absorb the suction cup.
Also, although not shown, a plurality of small-diameter suction cups can be provided, and can be adapted to the shape of a rubber stopper or the like to be sucked.

In the above embodiments, a case has been described in which suction cups are provided on both the front and back surfaces of the collar, but it is of course also possible to provide suction cups on only one side, and this embodiment will be described based on FIG. 5.

A suction cup 3 is provided on the collar 2, with the opening surface of the suction cup 3 facing toward the tip of the needle 1a of the collar 2, which is attached to the infusion needle 1a that punctures the rubber stopper 11 of the container 10. The bladeless end of the tube protrudes and is provided with a protrusion 4 that is integrated with the collar 2, for example, a connecting pipe 21 of an infusion set 20 having an infusion tube 22.
This protrusion 4 is fitted and connected.

Further, it is also possible to adopt a configuration in which the drip tube 22 of the infusion set 20 is integrated with the rear projection 4 of the collar 2.

Here, the infusion needle 1a punctured into the rubber stopper 11 of the container 10 is fixed to the rubber stopper 11 and the container 10 by the collar 2 fixed thereto and the suction cup 3 that sucks the rubber stopper 11, thereby preventing the needle from coming out. Ru. Also, as in the previous embodiment, in the case of the drawing, since the cap seal 12 is in close contact with the suction cup 3, the liquid 13 is transferred to the needle 1a.
Even if liquid were to leak from the gap between the rubber stopper 11 and the rubber stopper 11, it would not come out of the suction cup, thereby preventing the liquid from leaking.

Next, the materials of the infusion device according to this invention will be explained. Infusion needles such as double-edged needles can be made of metal or hard synthetic resin, and if the flange around the needle is made of the same metal or hard synthetic resin as the needle,
When suction is performed using the suction cup provided on the flange, the flange and needle are integrated, so it can be firmly fixed to the stopper of the container.

Further, the suction cup can be made of soft synthetic resin, rubber, etc., and the collar can be made of hard synthetic resin, rubber, etc. integrally with the suction cup. Therefore, since it is easy to integrally mold and process, it can be manufactured at low cost.

As is clear from the detailed examples, the infusion device according to this invention is provided with a suction cup on one or both of the front and back surfaces of the flange surrounding the infusion needle, in order to suction and adsorb the rubber stopper of the container into which the needle is pierced. It is an excellent transfusion device that can be used for a wide variety of transfusions, and has the advantages of fixing the needle to the container while preventing the needle from coming out or leaking, and also being able to connect and fix the containers.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal side view showing the implementation of the infusion device according to this invention, Figs. 2, 3, and 4 are partially cutaway perspective views showing the infusion device of this invention, and Fig. 5 shows the suction cup attached to the collar. FIG. 2 is a partially cutaway side view showing the implementation state of the infusion device according to the invention, which is installed in one direction. In the diagram, 1...double-edged needle, 1a...infusion needle, 2...
Tsuba, 3... Suction cup, 4... Protrusion, 10... Container, 1
1...Rubber stopper, 12...Cap seal, 13...
...Liquid, 20...Infusion set, 21...Connection pipe, 22...Drip tube.

Claims (1)

[Scope of utility model registration request] The main body consists of an infusion needle consisting of a double-edged needle or a single-edged needle that pierces a rubber stopper of a drug solution container, and a flange provided around the infusion needle, and a flange is provided on at least one side of the flange and on the outer surface of the pierced rubber stopper. An infusion device characterized by being equipped with a suction cup that can be sucked.