JP2942559B1 - Intermediate container for infusion - Google Patents

Abstract

Abstract: PROBLEM TO BE SOLVED: To provide an intermediate container for infusion with an air vent so that the next chemical can be smoothly injected after using one chemical, or with a chemical outlet for connecting to more kinds of infusion sets. To provide. SOLUTION: This is a cylindrical intermediate container for infusion having a chemical solution inlet and an air vent at an upper part and a chemical solution outlet at a lower part, and an air needle having a vent hole communicating the air vent with the inside and outside of the container. The cap is attached with a rubber-like elastic body cap attached with its tip outside, and the lower chemical solution outlet is formed of a rubber-like elastic body capable of inserting a chemical solution container insertion needle into the opening at the bottom of the container. The intermediate container for infusion according to claim 1, wherein the intermediate container is constituted by inserting a stopper.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an intermediate container for infusion, which is mounted in the middle of an infusion set and for confirming the remaining amount of a reduced drug solution, and after the completion of one drug solution, the next drug solution is smoothly placed. The present invention relates to an infusion intermediate container having an air vent for injecting, or a medicinal solution outlet capable of being connected to various types of infusion sets.

[0002]

2. Description of the Related Art As shown in FIG. 1, a general drip infusion set uses an infusion set including a drug solution container insertion needle 3, a tube 4, a trap 5, a clamp 6, a wing 7, a human body insertion needle 8, and the like. The infusion set is inserted by inserting the drug solution container insertion needle 3 into the stopper 2 of the drug solution container 1 containing the solution for infusion. When the infusion is performed by such a method, it is necessary to immediately terminate the infusion immediately before the chemical liquid in the chemical liquid container 1 runs out, or to perform a switching process of replenishing the chemical liquid or changing the connection to the new chemical liquid container 1. However, since a large volume such as a drug solution bag is usually used as the drug solution container 1, it is difficult to predict the grace time until the switching process is performed when the solution volume is low. The nurse needed to be monitored.

[0003] Therefore, as shown in FIG. 2, a drug solution inlet 10 for mounting a tube 4 connected to the drug solution insertion needle 3,
An intermediate container 9 comprising a graduated cylindrical container having an air vent 11, an auxiliary liquid inlet 12, and a trap 13 for checking the drip rate has been developed. Air vent 11
Is provided for bleeding air when injecting a chemical solution into the intermediate container 9, and a nonwoven fabric 14 is fitted at the tip as shown in an enlarged view of FIG. Auxiliary liquid inlet 12
3 is provided as an injection port for adding and mixing another chemical solution to the chemical solution injected from the chemical solution injection port 10, and FIG.
As shown in the enlarged view of (b), a rubber cap 15 is covered on the tip, so that a medical solution can be injected by inserting a syringe needle whenever necessary. This intermediate container 9 is generally sold as a set in which the body 13 is integrally formed from the trap 13 through the tube 4, the clamp 6, the wing 7, and the like.

[0004]

SUMMARY OF THE INVENTION Such an intermediate container 9 is described.
Is used, it is possible to accurately estimate the remaining amount of the liquid medicine when the liquid amount of the liquid medicine container 1 becomes small, that is, the grace time until the switching treatment is performed, and there is an advantage that the burden on the nurse can be reduced. . However, such a conventional intermediate container 9 has the following problems. The intermediate container 9 is supposed to be disposable each time, and the air vent 11 provided at the upper part has a nonwoven fabric 14 fitted at the tip, so that the air smoothly escapes during the first chemical injection, and the chemical injection is performed. However, when the intermediate container 9 is filled with the liquid and the chemical liquid comes into contact with the nonwoven fabric 14, the nonwoven fabric 14 expands and loses air permeability. For this reason, when replacing the chemical liquid container 1, a new intermediate container is used, or an air needle is inserted into the rubber cap 15 of the auxiliary chemical liquid inlet 12 provided as an additional chemical liquid inlet to secure an air outlet. Needed.

The intermediate container 9 is commercially available as a set in which the human body insertion needle 8 is integrally formed.
Since the size, shape, and the like from 3 to the human body insertion needle 8 vary depending on the condition of the patient and the like, it is necessary to always have a variety of intermediate container sets so as to correspond to each situation. In view of the state of the prior art, the present invention is provided with an air vent so that the next drug solution can be smoothly injected after using one drug solution, or a drug solution outlet that can be connected to more types of infusion sets. It is an object of the present invention to provide an infusion intermediate container provided with:

[0006]

According to the present invention, there is provided (1) a cylindrical intermediate container for infusion having a chemical liquid inlet and an air vent at an upper part and a chemical liquid outlet at a lower part, wherein the air vent is a container. An air needle having an air hole communicating with the inside and outside of the air needle is attached with a tip of the air needle with the tip outside, and a cap made of a rubber-like elastic body is attached, and if necessary, the top of the cap is pushed down and the tip of the air needle is passed through the cap. The intermediate container for infusion, wherein the air in the intermediate container for infusion can be discharged through the air hole of the air needle; and The intermediate container for infusion according to the above (1), wherein the intermediate container for liquid transfusion is constituted by inserting a stopper of a rubber-like elastic body into which a drug solution container insertion needle can be inserted.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings. FIG. 4 is a schematic explanatory view showing one embodiment of the present invention. A cylindrical intermediate container 21 with a scale has a chemical liquid inlet 22, an air vent 23, and an auxiliary chemical liquid inlet 24 at the upper part of the container, and a rubber-like elastic plug 26 capable of inserting a chemical liquid container insertion needle at an opening at the lower part of the container. Chemical solution outlet 2
5 is provided. As shown in the enlarged view of FIG. 5A, the air vent 23 of the intermediate container 21 of the present invention is formed of a rubber-like elastic body with an air needle 27 having a ventilation hole communicating with the inside and outside of the container with its tip outside. The cap 28 is attached with the cap 28 attached thereto, and when necessary, the upper part of the cap 28 is pushed down to penetrate the tip of the air needle 27 through the cap 28 as shown in FIG. The structure is such that the air can be discharged through the air hole of the air needle 27. The cap 28 is made of a rubber-like elastic material such as natural rubber latex or isoprene rubber.
In the state shown in FIG. 5A, the airtightness is maintained. As shown in FIG. 5B, the tip of the air needle 27 can be easily penetrated by pushing down with a fingertip or the like, and the air in the intermediate container 21 can be discharged. it can. When the air is exhausted, the cap 28
By returning to the original state, the vent hole is closed again.
Since the air vent 23 has such a structure, it can be used repeatedly any number of times, so that the replacement of the chemical solution container can be easily performed.

As shown in FIG. 5C, it is preferable that a safety cap 29 made of a resin harder than the cap 28 is placed over the air vent 23. This safety cap 2
If 9 is made of a flexible material and the projections 30 are provided, it is possible to raise and lower the cap 28 without removing the safety cap 29 only by pressing with a finger from the outside. It should be noted that the intermediate container 21 is prepared for injection of an additional chemical solution as shown in FIG.
It is preferable to provide an auxiliary liquid inlet 24 having the same structure as the auxiliary liquid inlet 12 shown in FIG.

The chemical solution outlet 25 in the intermediate container 21 is
It has a structure in which a stopper 26 made of a rubber-like elastic material such as natural rubber latex or isoprene rubber, into which a drug solution container insertion needle can be inserted, is inserted into an opening at the bottom of the container. By adopting such a structure, an infusion set having a variety of configurations available on the market according to the conditions of infusion such as a patient's condition is inserted into the stopper 26 by inserting a drug solution container insertion needle at one end of the infusion set. Connection can be established. That is, it is sufficient to connect a commercially available infusion set corresponding to the infusion conditions, as in the case of the conventional intermediate container in which the components from the lower trap to the human insertion needle shown in FIG. 2 are integrally configured. Therefore, it is not necessary to prepare a large number of intermediate containers each having a structure capable of coping with each drip condition.

FIG. 6 shows an example of a commercially available infusion set. The infusion set shown in FIG. 6A includes a drug solution container insertion needle 3, a tube 4, a trap 5, a clamp 6, a wing 7, and a human body insertion needle 8. The infusion set in FIG. 6B is a drug solution container insertion needle. Reference numeral 3 is directly connected to the trap 5 and has no wing.

[0011]

According to the present invention (1), since the air vent of the intermediate container is constituted by an air needle covered with a rubber-like elastic cap, the air vent can be used repeatedly, and the replacement operation of the chemical liquid container can be performed. Has the effect of becoming easier. Further, according to the present invention (2), the chemical solution delivery port at the lower portion of the intermediate container is configured such that a rubber-like elastic plug capable of inserting a drug solution container insertion needle is inserted into the opening at the lower portion of the container, thereby providing a multiplicity of components. It is possible to connect to various types of infusion sets, and there is an effect that one kind of intermediate container can correspond to various kinds of infusion conditions.

[Brief description of the drawings]

FIG. 1 is a schematic explanatory view showing a system configuration of a conventional general drip.

FIG. 2 is a schematic explanatory view showing a system configuration of a drip using a conventional intermediate container.

FIG. 3 is an enlarged view showing a structure of an air vent and an auxiliary liquid inlet in a conventional intermediate container.

FIG. 4 is a schematic explanatory view showing one embodiment of the intermediate container of the present invention.

FIG. 5 is an enlarged view showing a structure of an air vent in the intermediate container of the present invention.

FIG. 6 is a schematic explanatory view showing a configuration example of a commercially available infusion set.

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-10-328300 (JP, A) JP-A-6-86813 (JP, A) JP-A-4-44771 (JP, A) (58) Field (Int.Cl. ⁶ , DB name) A61M 5/36 A61M 5/00 331 A61M 5/168

Claims (2)

(57) [Claims] 1. A cylindrical intermediate container for an infusion having a chemical solution inlet and an air vent at an upper portion and a chemical solution outlet at a lower portion, wherein the air has an air hole communicating the inside and outside of the container with the air vent. The needle is attached with the tip of the needle facing outward and a rubber-like elastic cap is attached to the cap.If necessary, the upper part of the cap is pushed down, and the tip of the air needle penetrates the cap to remove the air in the infusion intermediate container. An intermediate container for infusion, characterized in that it can be discharged through a vent of a needle. 2. The liquid medicine outlet of the lower part is configured by inserting a stopper of a rubber-like elastic body capable of inserting a needle for inserting a liquid medicine container into an opening of a lower part of the container. 2. The intermediate container for infusion according to 1.