JP2003135593A - Liquid passage assisting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a liquid passing means being easy to attach to a medicine bag and adapted to pass liquid between a plurality of split medicine compartments. SOLUTION: In this liquid passing device 1, the means for passing liquid is attached to a medicine container having a plurality of compartments, in such a way that a blocked liquid passing part is opened. The liquid passing means includes at least a container retaining part 2 for retaining the liquid passing part, an introducing part 5 for introducing the liquid passing part into the retaining part, and a detachment prevention part 6 for preventing detachment of the liquid passing part from the liquid passing means.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention In peritoneal dialysis therapy, it is used as a dialysate infusion container to be injected into the peritoneal cavity of a patient, and more specifically, for the purpose of passing fluid between divided compartments before infusion. Related to the liquid passing means.

[0002]

2. Description of the Related Art Among the products related to peritoneal dialysis, polyvinyl chloride (hereinafter
PVC) is the most common, and the main form of drug is that all the liquids are contained in one chamber. However, recently, due to vigilance against "endocrine disrupting substances", the material of the container has been de-PVCed, and due to advances in peritoneal dialysis therapy, the drug has been split into two liquids. Under these circumstances, the bag for the peritoneal dialysis solution, which is made of olefin (mainly polypropylene) and has a double chamber, is becoming the mainstream.

The method for producing this olefin double-chamber bag is roughly classified into two types: a peelable seal part called an easy peel seal that divides the two chambers, and a removable clip that divides the two chambers. It When the two chambers are separated by the latter clip, there are cases in which heat sterilization causes creases that are difficult to restore to the (bag) sheet portion where the clip abuts, and that tacking occurs in which the lumen surface is in close contact. Further, if the material of the bag is made of olefin, the hardness of the sheet is added, and it becomes difficult to carry out the liquid passing operation of passing and mixing the two liquids. Due to the above-mentioned factors, if the two liquids divided into the compartments are not permeated and mixed and injected into the abdominal cavity of the patient, the peritoneum of the patient may suffer considerable damage and impair its function.

Therefore, when using a drug solution which is separately stored in the compartments and mixed before administration to be administered to a patient, it is necessary to confirm that the drug solutions in each compartment have been sufficiently passed and mixed. is important. If possible, it is desirable that the chemicals in each compartment be forcibly passed and mixed by some means. In particular, during nighttime peritoneal dialysis (APD therapy) using a cycler, the machine automatically injects and discharges peritoneal dialysis fluid during sleep, so it is necessary to ensure that the two chambers are fluidized and mixed. Is.

[0005]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a liquid-passing means with good operability that can surely and easily perform liquid-passage / mixing in each compartment. Further, another object of the present invention is to provide an inexpensive liquid passing means with a simple mechanism (structure) which does not have an operating (movable) portion in the liquid passing means itself. It is another object of the present invention to provide the above-mentioned liquid passing means devised so as not to be easily detached from the chemical liquid container during the liquid passing / mixing.

[0006]

In the present invention, the above problems can be solved by the following means. That is, the present invention relates to a liquid-liquid container equipped with a plurality of compartments separated and stored by the blocking means so as to open the liquid-passing part that has been blocked (after removal of the blocking means). The liquid passing means is a container holding part for holding the liquid passing part (of the chemical liquid container), an introducing part for introducing the liquid passing part to the holding part, and the liquid passing part is A liquid passage auxiliary device comprising at least a detachment prevention portion for preventing the liquid passage device from being detached (removed).

In the introduction part, it is desired that the liquid passage part of the liquid medicine container be easily and smoothly guided to the holding part. In the holding part, not only the liquid passing part of the container is held, but also the liquid passing is blocked and blocked (by pressing in the vertical direction) by the side of the container (which is welded) and is blocked. It is necessary to have a pressing function for forcibly opening the inner surface of the part. More specifically, this pressing function is a pressing in a direction different from the direction in which it was pressed by the blocking means to form the compartment, and is further substantially perpendicular to the pressing direction by the blocking means. It is desirable to press in any direction.

Further, in the detachment prevention portion, when the liquid passage portion of the container is introduced into the holding portion, it does not become an obstacle, and once the liquid passage portion is arranged in the holding portion, it becomes difficult to detach.
(Progress is easy, but retrograde is difficult) It is preferable to have a retrograde prevention function.

[0009]

Further, in the present invention, more excellent effects can be obtained by taking the following embodiments as needed. That is, as one example,
The overall shape including both the introduction part and the container holding part is a substantially U-shape, and is the above-mentioned liquid passage auxiliary device having at least both side parts facing each other and a connecting part connecting these parts. In this embodiment, as shown in FIG. 3, both side portions 2 facing each other and the connecting portion 3 function as a container holding portion. Then, particularly, both side portions 2 of the container holding portion press the liquid passage portion 4 from both sides, thereby opening and maintaining the state.

Further, the taper 5 formed on the tip side of the both side portions 2 is an introduction portion for introducing the liquid passage portion 4 of the chemical liquid container into the holding portion. Further, the stepped portion 6 formed on the proximal end side of the taper 5 functions as a detachment preventing portion that holds the liquid passage portion 4 from the liquid passage auxiliary device 1 so as not to be detached. As described above, by forming the liquid passage auxiliary device of the present invention in a substantially U-shape, it is possible to provide each of the above functions with a simple structure.

Here, the chemical solution container 7 is arranged such that the liquid passage portion 4 is sandwiched between the both side portions 2, but the distance t1 between the both side portions is the same as the liquid passage portion 4 arranged between the both side portions. If it is smaller than the crossing distance t2 in the natural state of the liquid portion, the liquid passage portion 4 is forcibly kept pressed from both sides. Therefore, in order to effectively maintain the open state, it is desirable that the distance t1 between both sides be smaller than the crossing distance t2.

The distance t1 between the two side parts is 0.5 to 0.5 of the crossing part distance t2 in the natural state of the liquid passage part.
When the ratio is 0.9 times, it is possible to maintain the open state of the liquid passage portion without making it difficult to insert the liquid passage portion 4 into the container holding portion, which is preferable.

The liquid flow assisting device in which a part of the connecting portion 3 also serves as a gripping portion for holding the liquid medicine container can be moved while holding the liquid medicine by the patient. So convenient.

As shown in FIG. 2, the introduction portions 5 are provided on the tip ends of the both side portions 2, and the introduction portions 5 are tapered so that the distance between the introduction portions facing each other increases as the introduction portions 5 become closer to the tip ends. If it is formed, it is easy to insert the liquid passage portion 4 into the container holding portion.

When the step portion 6 formed on the taper base end side of the introduction portion 5 is provided as the detachment preventing portion, the liquid passage portion 4 once arranged in the container holding portion becomes difficult to detach, which is preferable. . This step 6 does not get in the way when it is inserted,
When a force acts in the direction of detachment, the anti-reverse function works to prevent detachment.

The outer periphery of the liquid passage portion 4 arranged in the container holding portion is constrained in shape by a rectangle surrounded by an imaginary line connecting both side portions 2, the connecting portion 3 and both step portions 6 as shown in FIG. Will be done. Therefore, the above-mentioned distance t1 between both sides is made too smaller than the crossing distance t2, and the (substantially U-shaped)
If the distance t3 from the connecting portion to the step portion is smaller than t2-t1, the open state will be deteriorated, which is not preferable.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will be described below with reference to the drawings.

The liquid passage auxiliary device of the present invention is a U-shaped clip 1 in which the inner space between both side portions 2 of the U-shape is the width of the liquid passage portion 4 of the multi-chamber container in a natural state, that is, the transverse direction. Part distance: t
Dimensionally designed to be narrower than 2. A taper 5 is formed at the tip of each side portion 2 so that the liquid passage portion 4 can be easily attached to the clip 1. Further, after the liquid passage portion 4 is attached to the clip 1, a "reverse" shaped step portion 6 is formed so that it is unlikely to come off. Figure 4
FIG. 6 is a perspective view of an embodiment of a liquid passage auxiliary device of the present invention, and FIG. 5 is a schematic view showing a state of the liquid passage auxiliary device as seen from a plane (c), a front face (b), and a side direction (a). Is.

Next, a method of using the liquid passing clip 1 will be briefly described. As shown in FIG. 2, the blocking means (not shown) that has blocked the compartment is removed. After that, the liquid passage clip 4 is approached from above or below the liquid medicine container 7. The liquid passage portion 4 is guided from the introduction portion formed with the taper 5 so that the liquid passage portion 4 is arranged in the container holding portion formed by the both side portions 2 and the connecting portion 3.

When inserting the liquid passage portion 4 into the introduction portion, the two liquids are sufficiently mixed, and then the compartment 8 on one side is pressed to inflate the liquid passage portion 4 with the liquid. This is because the liquid passage portion 4 is swollen in the vertical direction so that the liquid passage portion 4 can be easily inserted into the introduction portion 5. In that state, the liquid passing clip 1 is inserted to release the pressure on the one side chamber.

The liquid passage portion 4 arranged in the container holding portion is pressed from both sides to open the liquid passage portion 4. Then, the outer circumference of the liquid passing portion pressed from both sides swells in the vertical direction, and as a result of the bulging being locked by the step portion 6 being locked, a force acting to detach the chemical liquid container from the liquid passing clip 1 acts. Even if you do, it will not come off easily.

[0022]

INDUSTRIAL APPLICABILITY The liquid flow assisting device of the present invention can be attached to a chemical liquid container by a simple operation, and the liquid flow part of the chemical liquid container is forcibly pressed so that the liquid flow part is opened to separate compartments. The chemical liquid can be surely distributed and mixed. Further, since the liquid passage auxiliary device is formed with the detachment preventing portion, the liquid passage portion once arranged in the holding portion is not easily detached and the open state can be stably maintained.

Therefore, even when an automatic injecting / exhausting device such as an automatic peritoneal dialysis device is used, the liquid passage portion can be surely kept in an open state, and the pump may be overloaded due to blockage. Therefore, it became possible to administer the drug solution into the abdominal cavity of the patient by passing and mixing the solutions in both chambers almost satisfactorily.

[Brief description of drawings]

FIG. 1 is a schematic view showing an outline of an embodiment of a liquid passage assistance device of the present invention.

FIG. 2 is a schematic diagram showing an outline of a drug solution container (b) viewed from the side, a liquid passage auxiliary device (a) immediately before being attached to the container, and a drug solution container (c) seen in a plan view.

FIG. 3 is a schematic view showing the shape and dimensions of an embodiment of a liquid medicine container and a liquid passage auxiliary device.

FIG. 4 is a perspective view showing an embodiment of a liquid passage assistance device of the present invention.

5 is each schematic view showing a state of the liquid flow assisting device of FIG. 4 as viewed from the plane (c), front (b) and side direction (a).

[Explanation of symbols]

1. Liquid passing auxiliary device (liquid passing clip) 2. Both sides (container holder) 3. Communication unit (container holding unit) 4. Liquid passing part 5. Taper (introduction part) 6. Step (detachment prevention part) 7. Chemical solution container 8. Compartment t1. Distance between both sides t2. Crossing distance t3 in the natural state of the liquid passing portion of the liquid medicine container arranged between the both sides. Distance from contact to step

Claims (8)

[Claims] 1. A means for liquid passage, which is installed in a liquid medicine container having a plurality of compartments so as to open a liquid passage portion that has been blocked (after removing the blocking means), The liquid passing means includes a container holding portion that holds the liquid passing portion (of the chemical liquid container), an introducing portion that introduces the liquid passing portion into the holding portion, and the liquid passing portion is detached (removed) from the liquid passing means. ) At least a detachment prevention portion for preventing the liquid passing auxiliary device. 2. The overall shape including both the introducing portion and the container holding portion is substantially U-shaped, and has at least both opposing side portions and a connecting portion connecting these.
The liquid passage auxiliary device described. 3. The liquid passage portion, wherein the container holding portion is arranged such that the liquid passage portion of the chemical liquid container is sandwiched between the both side portions, and a distance t1 between the both side portions is arranged between the both side portions. 3. The liquid passage auxiliary device according to claim 2, which is smaller than the crossing distance t2 in the natural state. 4. The liquid passage auxiliary device according to claim 2, wherein the distance t1 between the both side portions is 0.5 to 0.9 times the distance t2 of the horizontal portion of the liquid passage portion in the natural state. . 5. The part of the connecting portion also serves as a holding portion for holding the liquid medicine container in order to carry it.
The liquid passage auxiliary device according to any one of items 1 to 4. 6. The introduction parts are respectively provided on the tip ends of the both side parts, and the introduction parts are tapered so that a distance between the introduction parts facing each other becomes larger as the introduction parts are closer to the tip end side. The liquid passage auxiliary device according to any one of claims 2 to 5. 7. The liquid passage auxiliary device according to claim 6, wherein the detachment preventing portion is a step portion formed on the tapered proximal end side of the introducing portion. 8. The liquid passage auxiliary device according to claim 7, wherein a distance t3 from the (substantially U-shaped) connecting portion to the step portion is larger than t2-t1.