JPH059000Y2 - - Google Patents

Description

[Detailed explanation of the idea]

<Industrial Application Field> This invention relates to an infusion amount measurement aid for an infusion bag, which is attached to an infusion bag and has a scale for visually checking the amount of infusion, and assists in measuring the amount of infusion. <Conventional technology> Conventionally, hospitals and other institutions have used high-calorie infusions containing glucose, amino acids, electrolytes, vitamin sugars, etc. for the purpose of pre- or post-surgical nutritional supplementation or nutritional improvement for people who are unable to take oral intake. It is being administered in vivo. Flexible plastic containers are preferred over vials and bottles as containers for storing the above-mentioned infusions, as they have many advantages such as no contamination by airborne bacteria during administration and the ease of disposing of empty containers. Infusion bags are widely used. Normally, the infusion bag is filled with an amount of infusion fluid that is somewhat smaller than the capacity of the infusion bag, for example, about 1200 ml for a 2000 ml bag, with almost no air space (space). There is. The reason for this is to cope with the case where other component liquids are mixed and administered, and also to perform the mixing operation aseptically without air entering or exiting. <Problem to be solved by the invention> However, when the above-mentioned infusion bag was used, there was a major problem in that it was extremely difficult to grasp the content of the infusion. In other words, when using conventional vials, etc., it was possible to measure the content based on the liquid level, whereas when using an infusion bag, the liquid level did not correspond to the content, so it was possible to measure the content based on the liquid level. , that was impossible. This is because, as mentioned above, the infusion bag is flexible and has almost no voids, so when the infusion bag is hung on a stand etc. during administration, the part occupied by the infusion will have a swollen shape; The portion has a flattened shape, and as a result, a small amount of infusion fluid rises due to capillary action, and as shown in FIG. Because it will be.
Furthermore, a phenomenon occurs in which the liquid level hardly decreases even if the amount of infusion decreases. Generally, in order to provide nutritional support or administer drugs to a patient, the dosage per unit time must be adjusted depending on the patient's condition. Therefore, solving the above problem has been long awaited in the medical field. In view of the above-mentioned problems, the object of this invention is to provide an infusion bag measuring aid for infusion, which can accurately measure the amount of infusion and enable administration of an accurate amount of infusion. <Means for Solving the Problems> In order to achieve the above object, the infusion bag infusion amount measurement aid according to this invention includes a flexible infusion bag equipped with a scale for visually checking the infusion amount. It is equipped with a pair of clamping pieces that are attached while sandwiching the surface of the infusion bag, and the interval between the pair of clamping pieces is such that the infusion bag is slid on the surface of the infusion bag while being gently compressed. It is characterized by being set at a predetermined interval that is larger than the thickness of the infusion bag so that most of the infusion solution can be shifted to the lower part of the infusion bag. <Function> According to the infusion amount measuring aid for an infusion bag configured as described above, the infusion amount measuring aid can be moved downward along the surface of the infusion bag while the infusion bag is being gently compressed by the pair of clamping pieces. By sliding, most of the infusion is shifted to the lower part of the infusion bag, and by creating internal pressure in the lower part of the infusion bag, the shape of the lower part of the infusion bag can be approximately specified according to the amount of infusion. Therefore, it is possible to obtain a uniform level according to the amount of infusion, and therefore, the amount of infusion can be accurately measured. When administering an infusion, the infusion amount measuring aid attached to the infusion bag containing a predetermined amount of infusion is pushed down, the infusion is shifted to the lower part of the infusion bag, and internal pressure is generated in the lower part. Since administration is started from the same state, smooth administration is possible.Also, as the administration progresses and the infusion level falls, the infusion volume measurement aid is pushed down again to measure the remaining infusion volume and then administered. By comparing the amount of infusion at the start, the amount of infusion administered at that point can be accurately determined. In particular, the spacing between the clamping pieces is set to a predetermined interval that is larger than the thickness of the infusion bag, so when the infusion volume decreases, the infusion volume measuring aid must be removed and reattached. You can slide the infusion volume measurement aid downwards without any effort as the infusion volume decreases, while still wearing it.
Easy to use. <Example> Hereinafter, an example of this invention will be described with reference to the drawings. FIG. 1 is a perspective view showing an infusion amount measuring aid for an infusion bag as an embodiment of this invention. The frame body 2 is a flat frame body 2 which is made of a hard and transparent material such as polycarbonate, polystyrene, etc., and which can be fitted onto the outside of the infusion bag 1. The frame 2 has a horizontally long rectangular shape when viewed from the side. In the frame 2, both ends of the planar holding pieces 3 and 4 are connected by a pair of connecting parts 2a and 2b. A scale 1e is attached to the surface 1a of the infusion bag 1 so that the amount of infusion in the infusion bag 1 can be visually measured. Normally, the infusion bag 1 contains an accurately measured amount of infusion solution in a hermetically sealed container. The infusion solution is stored with a certain amount of room left. The reason why this margin is left is that when administering an infusion using infusion bag 1, there are cases where other component solutions are added to infusion bag 1 using a syringe needle, etc. to increase the total volume. Therefore, this is to deal with this. Therefore, the maximum capacity of the scale 1e is also set to be larger than the initial storage capacity in order to cope with the increase in capacity. The spacing between the clamping pieces 3 and 4 is such that the clamping pieces 3 and 4 can slide up and down along the surfaces 1a and 1b of the infusion bag 1 while pressing the pair of surfaces 1a and 1b. In addition, to prevent the infusion from moving above the clamping pieces 3 and 4,
It is preferable to set the thickness to about 1 to 5 mm depending on the thickness of the infusion bag 1. Further, on the outer peripheral side surface of the frame body 2, a base line m is marked for setting the level of the amount of infusion. According to this embodiment, when administering an infusion, the frame 2 is fitted onto the upper part 1c of the infusion bag 1 which has previously contained a predetermined amount of infusion, and the pair of clamping pieces 3 and 4 are used to hold the infusion bag 1. While pressing the surfaces 1a and 1b of the clamping pieces 3 and 4,
By sliding it downward along lines a and 1b, most of the infusion is shifted to the lower part 1d of the infusion bag 1, as shown in FIG. 1, and internal pressure is generated in this lower part 1d. . In this state, the scale of the scale 1e indicated by the base line m is read in advance. It is preferable that the baseline m is marked at an appropriate position on the side of the clamping piece to indicate the initial storage volume of the infusion solution. There is no problem in measuring the amount of change. When the administration progresses and the infusion level falls, the frame 2 is pushed down again to shift the infusion to the lower part 1d of the infusion bag 1, and this lower part 1d
generates internal pressure. At this time, infusion bag 1
Since internal pressure is generated in the lower part 1d of the infusion bag 1, the shape of the lower part 1d of the infusion bag 1 can be approximately specified according to the amount of infusion, and the scale 1e of the infusion bag 1 indicated by the base line m at this time can be read. This makes it possible to accurately measure the amount of remaining infusion. By comparing this accurate remaining amount of infusion with the amount of infusion at the time of initiation of administration, the amount of infusion to be administered at that point can be accurately determined, making it possible to administer an accurate amount of infusion. Strictly speaking, in this case, a small amount of infusion remains on the upper part of the frame 2, but the amount is so small that it does not affect the reading of the scale, so there is no problem. Further, in the above embodiment, the frame 2 is made transparent, and the frame 2 is provided with a baseline m for setting the level of the infusion amount.
However, the frame 2 may be made non-transparent so that the lower end of the frame 2 is at the level of the infusion surface. Furthermore, in the above embodiment, as shown in FIG. 4, by providing a pair of protrusions 3a, 4a in the central longitudinal direction of the clamping pieces 3, 4, the surface pressure of clamping is increased, and the surface 1a , 1b can be reliably pinched. FIG. 5 shows another embodiment of the infusion amount measuring aid for an infusion bag of this invention. In the same figure, this infusion amount measuring aid B has one ends 5a, 6a of a pair of clamping pieces 5, 6 rotatably connected by a shaft 7. At the other end 5b of the clamping piece 5,
An elastic convex piece 5c having a catch part 5d is provided in a protruding manner, and the other end 6b of the clamping piece 6 has a notch formed with a step part 6d that can be engaged with the catch part 5d of the elastic protrusion piece 5c. 6c is provided. When the open holding pieces 5 and 6 are closed, the elastic convex piece 5c is elastically deformed, and the catch portion 5d crosses over the stepped portion 6d and is engaged with the stepped portion 6d. When releasing this engagement, move the elastic convex piece 5c outward (P in the figure).
direction). Further, in the central longitudinal direction of the clamping pieces 5, a pressing protrusion 5e provided on one of the clamping pieces 5 is protruded, and the other clamping piece 6 is provided with a through hole 6e through which the pressing protrusion 5e is inserted. It is set up. The cross section of the holding convex portion 5e is jagged. According to this embodiment, in addition to achieving the same effects as the embodiment shown in FIG. Also, the infusion bag can be held from the sides by the clamping pieces 5 and 6, and the workability of attaching the infusion bag to the infusion bag is good. In addition, by introducing the infusion bag into the through hole 6e while being held down by the holding convex portion 5e having a zigzag cross section, the opposing surfaces of the infusion bag can be more reliably compressed. FIG. 6 shows yet another embodiment of an aid for measuring the amount of infusion in an infusion bag. In the figure, this infusion amount measuring aid C consists of a pair of separable holding pieces 8 and 9. At both ends 8a and 8b of the clamping piece 8, there is an elastic convex piece 8 having hook parts 8e and 8f.
c, 8d protrude from both ends 9a, 9 of the clamping piece 9.
Insertion holes 9c and 9d are bored in b, through which the elastic protrusions 8c and 8d are inserted. Elastic convex pieces 8c, 8
The hooking parts 8e and 8f of d are connected to the insertion holes 9c and 9
d and is engaged with the outer surface 9e of the clamping piece 9,
In addition, the elastic convex pieces 8c and 8d are inserted into the insertion holes 9c and 9.
By pushing it into d, the engagement is released. According to this embodiment, in addition to producing the same effect as the embodiment shown in FIG. Even if the infusion bag is attached to the infusion bag, the holding pieces 8 and 9 can sandwich the infusion bag from the front and back, making it easy to attach the bag to the infusion bag. FIG. 7 shows yet another embodiment of an aid for measuring the amount of infusion in an infusion bag. In the figure, this infusion amount measuring aid D consists of a pair of separable holding pieces 10 and 11. Side walls 10a and 10b that can be opened and expanded are provided at both ends of the clamping piece 10, and hook parts 10c and 10c are provided on each side wall 10a and 10b.
10d is provided protrudingly. At both ends of the clamping piece 11 are provided recesses 11a and 11b into which the hooks 10c and 10d can be engaged. In this embodiment as well, the same effects as in the embodiment shown in FIG. 6 can be obtained. FIG. 8 shows yet another embodiment of an aid for measuring the amount of infusion in an infusion bag. In the figure, this infusion amount measuring aid E consists of a pair of clamping pieces 12 and 13.
have. One end 12 of both clamp pieces 12, 13
a, 13a are connected by the shaft 14 to both the holding pieces 12,
13 are connected so as to be rotatable along the in-plane direction. The end face 13b on the rotating side of the clamping piece 13 is
The side wall portion 12c has a curved surface with a curvature equal to the rotation radius, and has a curved inner circumferential surface 12d that can press and hold the end surface 13b of the clamping piece 13 on the rotation side of the clamping piece 12. There is. In addition, the side wall portion 12
A support piece 12e is provided protruding from c to provide support when the pair of clamping pieces 12 and 13 are pressed. According to this embodiment, the clamping piece 13 is
After aligning the clamping piece 12 along the infusion bag in a state substantially perpendicular to the bag, rotating the clamping piece 12,
The end surface 13b of the clamping piece 13 is connected to the side wall portion 1 of the clamping piece 12.
By holding the infusion bag under pressure by the inner circumferential surface 12d of the infusion bag 2c, the pair of clamping pieces 12 and 13 can clamp the surface of the infusion bag, producing the same effect as the embodiment shown in FIG. In addition, it can also be attached to an infusion bag suspended from a stand, making it easy to attach. FIG. 9 shows yet another embodiment of an aid for measuring the amount of infusion in an infusion bag. In the figure, this infusion amount measuring aid F consists of a pair of clamping pieces 15 and 16 that are connected to each other by a folded part 14 so as to be rotatable about one side end. In addition, similarly to the embodiment shown in FIG.
a, 16b are provided, but the elastic convex piece 15
The difference is that each pair of the elastic convex pieces 15a and 15b are provided in opposite directions. According to this embodiment, in addition to producing the same effects as the embodiment shown in FIG. 1, it can also be attached to an infusion bag suspended from a stand, and the attachment workability is good. Moreover, the elastic convex piece 15a,
15b are provided in pairs in opposite directions, so that the gripping pieces 15 and 16 can be engaged with each other reliably. FIG. 10 shows yet another embodiment of an aid for measuring the amount of infusion in an infusion bag. In the same figure, this embodiment differs from the embodiment shown in FIG. 9 in that the holding pieces 15 and 16 are formed to be vertically rotatable by the folded portion 14 at the upper end, and the above-mentioned The folded portion 14 is provided with an insertion hole 14a through which an infusion bag can be inserted. According to this embodiment, after the infusion bag 1 is inserted into the insertion hole 14a of the folded part 14 with the clamping pieces 15 and 16 open, the clamping pieces 15 and 16
This allows the infusion bag 1 to be compressed, producing the same effect as the embodiment shown in FIG. <Test> When measuring the amount of infused fluid, a case where an aid for measuring the amount of infused fluid having the same configuration as the embodiment shown in Fig. 1 above is used;
A comparative test was conducted with a case in which it was not used. The exam is
This was done by filling an infusion bag capable of holding 3 liters of infusion with 1.2 liters of infusion, measuring or predicting the amount of infusion from the scale of the infusion bag, and measuring the error. The measurement test was conducted 10 times using the same infusion bag, and the results shown in Table 1 on the next page were obtained. In other words, when not used, the maximum error is 130 milliliters,
The average error was 56 milliliters, while in use the maximum error was 30 milliliters and the average error was 15 milliliters. From this result, it was found that by using the infusion amount measuring aid, the infusion amount could be measured with about 3 to 4 times the accuracy of the conventional method.

[Table] Note that this invention is not limited to each of the above embodiments, and instead of the illustrated clip mechanism,
A known clip mechanism can be used, and various other design changes can be made without changing the gist of the invention. <Effects of the invention> As described above, according to the infusion amount measurement aid for an infusion bag of this invention, the infusion amount measurement aid can be used to infuse an infusion with the infusion bag being gently compressed by a pair of clamping pieces. By sliding the bag downward along the bag surface, the infusion solution is shifted to the lower part of the infusion bag, and by generating internal pressure in the lower part of the infusion bag, the shape of the lower part of the infusion bag is adjusted to the amount of infusion. It is possible to approximately specify the amount according to the amount of infusion, and it is possible to obtain a uniform level depending on the amount of infusion. Therefore, the amount of infusion can be measured accurately. When administering an infusion, the infusion amount measurement aid attached to the infusion bag containing a predetermined amount of infusion is slid on the surface of the infusion bag and pushed down, thereby shifting the infusion to the lower part of the infusion bag. Since the administration starts from the state where internal pressure is generated in the lower part, smooth administration is possible.
In addition, when the administration progresses and the infusion level falls, slide the infusion volume measurement aid again on the surface of the infusion bag and push it down to measure the remaining infusion volume.
By comparing the amount of infusion with the amount of infusion at the start of administration, the amount of infusion to be administered at that point can be accurately determined, and an accurate amount of infusion can be administered. In particular, the spacing between the clamping pieces is set to a predetermined interval that is larger than the thickness of the infusion bag, so when the infusion volume decreases, the infusion volume measuring aid must be removed and reattached. It is easy to use and allows the infusion volume measurement aid to be slid downwards in response to a decrease in the volume of infusion without any effort.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing how an infusion volume measurement aid as an embodiment of this invention is used, Fig. 2 is a perspective view of the infusion volume measurement aid, and Fig. 3 is a perspective view of the infusion volume measurement aid. A plan view, FIG. 4 is a partially cutaway perspective view showing an infusion amount measuring aid according to a modification of the embodiment shown in FIG. 1, and FIGS. 5 to 10 show infusion amount measuring aids according to other embodiments of this invention. It is a perspective view which shows each tool. FIG. 11 is a perspective view of an infusion bag showing conventional infusion volume measurement. A to G... Infusion amount measuring aid, 1... Infusion bag, 1a, 1b... Surface, 1d... Lower part, 1e...
...Scale, 3, 4, 5, 6, 8, 9, 10, 1
1, 12, 13, 15, 16... clamping pieces.

Claims (1)

[Scope of Claim for Utility Model Registration] A flexible infusion bag with a scale for visually checking the amount of infusion is provided with a pair of clamping pieces that are attached to the infusion bag so that the surface of the bag is sandwiched between them. The spacing between the pair of clamping pieces is set so that most of the infusion can be shifted to the lower part of the bag by sliding it on the surface of the bag with gentle pressure on the bag. An infusion amount measuring aid for an infusion bag, characterized in that the infusion bag is set at predetermined intervals that are larger than the thickness.