JP7355355B2 - Infusion bag pressurization device with pressurization bag - Google Patents

Description

The present invention relates to an infusion bag pressurizing device, and more particularly to an infusion bag pressurizing device that can restrain a pressurizing bag from excessive expansion or distortion.

Infusion fluid is a liquid injected into the human body when shock, dehydration, malnutrition, etc. occur, and it contains blood and various electrolyte solutions such as physiological saline and Ringer's solution, which have the same osmotic pressure as blood. It is a type of medicine.

Fluid is a liquid that is injected into a patient's veins during surgery, treatment, shock, dehydration, malnutrition, etc. It contains blood, electrolyte solutions, drugs similar to blood, etc. These drugs include physiological saline, Ringer's solution, nutritional supplements, and intravenous solutions that have the same osmotic pressure as body fluids.

Conventionally, as a drug injection device for supplying such an infusion, an infusion bag (fluid bag) is hung upside down and positioned higher than the human body, and an injection tube and needle connected to the infusion bag are used to inject drugs into the human body. A device was used to inject.

However, in operating rooms and the like, there is a need to urgently inject large amounts of drugs, and conventional drug injection devices have a problem in that it is difficult to achieve this purpose.

In order to solve these problems, piston-type drug injection devices and syringe-type drug injection devices have been developed, but their structures are complex, there is a high risk of failure, and they still require a large amount of drug injection. There are still problems in that drug injection is difficult and the overall manufacturing cost is high.

The technology behind the present application is disclosed in Patent Document 1.

Korean Patent Publication No. 10-2003-0095847

The present invention was devised to solve the above problems, and its purpose is to provide an infusion solution with an improved structure so that the pressure bag can be restrained from excessive expansion or distortion. An object of the present invention is to provide a back pressurizing device.

In order to achieve the above object, an infusion bag pressurizing device according to the present invention is a device that can pressurize an infusion bag containing an infusion, and includes an air storage space in which air can be stored; and a pressurizing bag provided to pressurize the infusion bag by expanding when air flows into the air storage space, and the air storage space is spatially separated by a spacing member. The spacing member includes at least one unit space section arranged in the air storage space, and one end of the spacing member is connected to the inner surface of one end of the pressurizing bag, and the other end is connected to the inner surface of one end of the pressurizing bag. It is characterized in that the pressure bag is restrained from expanding excessively by being coupled to the inner surface of the other end of the pressure bag.

Here, it is preferable that the spacing member includes a flexible member that cannot substantially resist shear force.

Here, it is preferable that the spacing member includes a band-like member that extends in the length direction and has a predetermined thickness and width.

Here, it is preferable that the unit spaces are provided so as to expand at substantially the same expansion rate.

Here, the spacing member extends along an imaginary first central axis extending from the upper end of the pressure bag to the lower end of the pressure bag, and a plurality of the spacing members are provided to It is preferable that they are arranged at a predetermined interval apart from each other along a second central axis that intersects with the second central axis.

Here, it is preferable that at least one of the upper end portion and the lower end portion of the plurality of unit spaces communicate with each other.

Here, it is preferable to further include an infusion bag accommodating part that can removably accommodate the infusion bag.

Here, the infusion bag may be integrally coupled to the pressure bag.

According to the present invention, an apparatus capable of pressurizing an infusion bag containing an infusion solution includes an air storage space in which air can be stored, and an air storage space that expands when air is introduced into the air storage space. and a pressurizing bag provided so as to be able to pressurize the infusion bag, and the air storage space includes at least one or more unit spaces spatially separated by a spacing member. , one end of the spacing member is coupled to an inner surface of one end of the pressure bag, and the other end is coupled to an inner surface of the other end of the pressure bag when disposed in the air storage space. By doing so, it is possible to restrain the pressurization bag from excessively expanding or distorting, thereby dramatically shortening the pressurization time, and unlike conventional methods, the infusion flow is not obstructed. This has the effect that it is easy for the user to visually confirm the amount of the infusion solution to be discharged, and the infusion solution stored in the infusion bag can be discharged without leaving any residue behind.

According to the present invention, a pressurizing bag for pressurizing the infusion bag can be integrally combined with the infusion bag, making it easier to manage the infusion fluid and improving the convenience of use for medical personnel. This also has the effect of reducing overall manufacturing costs.

FIG. 1 is a front view showing an infusion bag pressurizing device according to an embodiment of the present invention. 2 is a rear view of the infusion bag pressurizing device shown in FIG. 1. FIG. FIG. 3 is a rear view of the infusion bag pressurizing device in which the spacing member extends in the left-right direction. FIG. 2 is a diagram for explaining a usage state of the infusion bag pressurizing device shown in FIG. 1. FIG. FIG. 2 is a sectional view taken along line AA of the infusion bag pressurizing device shown in FIG. 1. FIG. FIG. 4 is a cross-sectional view taken along line BB in a state where the pressure bag shown in FIG. 3 is inflated. 2 is a sectional view taken along lines CC and DD of the infusion bag pressurizing device shown in FIG. 1. FIG. 6 is an enlarged perspective view of the VII portion of the infusion bag pressurizing device shown in FIG. 5. FIG. FIG. 7 is a drawing showing an infusion bag pressurizing device according to another embodiment of the present invention. FIG. 7 is a drawing showing an infusion bag pressurizing device according to another embodiment of the present invention.

In the following, preferred embodiments of the invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a front view showing an infusion bag pressurizing device according to an embodiment of the present invention, and FIG. 2 is a rear view of the infusion bag pressurizing device shown in FIG. FIG. 3 is a diagram illustrating how the infusion bag pressurizing device shown in FIG. 1 is used.

Referring to FIGS. 1 to 3, an infusion bag pressurizing device 100 according to a preferred embodiment of the present invention is a device that can pressurize an infusion bag 30 containing an infusion to discharge the infusion to the outside. , and a pressure bag 20.

Before explaining the pressurizing bag 20, the infusion bag 30 will first be explained.

The infusion bag 30 is a bag-shaped container for storing medical fluid to be injected into the human body, and is manufactured using a relatively thin synthetic resin film.

The fluid is a fluid injected through the veins of a patient during surgery, treatment, shock, dehydration, malnutrition, etc., and includes blood, electrolyte solutions, drugs similar to blood, etc. These drugs include physiological saline, Ringer's solution, nutritional supplements, and intravenous solutions that have the same osmotic pressure as human body fluids.

The infusion bag 30 may be manufactured using a flexible film made of polystyrene, polyolefin, polyurethane, polyester, vinyl chloride, or the like.

The infusion bag 30 includes an infusion storage space 31 that can accommodate infusion, an infusion outlet 32 for discharging the infusion stored in the infusion storage space 31 to the outside, and an infusion outlet 32 at the end of the infusion outlet 32. and a cap part 33 that is arranged to seal the infusion outlet 32.

The infusion outlet 32 is a tubular member disposed at the lower end of the infusion bag 30 and communicates with the infusion storage space 31 .

The cap portion 33 has a configuration into which an introduction needle (not shown) connected to an infusion tube (not shown) can be inserted, and this is well known to those skilled in the art and will not be described in detail. is omitted.

The infusion bag 30 may be a standard product widely used for medical purposes, or may be a non-standard product.

According to one embodiment of the present application, the upper part of the pressurizing bag 20 is a part manufactured using a relatively thin synthetic resin film, and is a part for supporting the infusion bag pressurizing device 100 on a vertical structure or the like. A hole may be formed in the center, but the invention is not limited thereto.

The pressurizing bag 20 may be provided in the form of a bag so that the infusion bag 30 can be pressurized by being expanded with air.

As an example, the pressure bag 20 may be made of a material containing polyolefin resin, but is not limited thereto. It can be made of a variety of materials with hardness that can support it.

The pressure bag 20 includes a first sheet 21 , a second sheet 22 , a third sheet 23 , an air storage space 24 , an air inlet 25 , an infusion bag hook 26 , and a spacing member 27 . Here, the pressure bag 20 has a horizontal length W and a vertical length L that are determined in advance.

The first sheet 21 may be placed in front of the pressure bag 20, as shown in FIG. Also, the second sheet 22 may be placed behind the pressure bag 20, as shown in FIG.

Further, according to an embodiment of the present application, at least one of the first sheet 21 and the second sheet 22 includes a fabric in which a film is fused to a nylon material to improve waterproof and windproof functions. However, the present invention is not limited to this. As another example, at least one of the first sheet 21 and the second sheet 22 may include a fabric having properties similar to those of a material commonly used for cuffs such as blood pressure monitors. However, it is not limited to this.

The second sheet 22 is a member disposed to face the first sheet 21, and in this embodiment, it can have the same thickness and shape as the first sheet 21, but there are some exceptions. However, the thickness, shape, material properties, etc. of the first sheet 21 and the second sheet 22 may be different from each other according to embodiments of the present invention. In particular, in the case of an infusion bag pressurizing device 200 according to another embodiment of the present application in which an infusion bag 30 and a pressure bag 20 are integrally coupled, which will be described later, the load due to the infusion bag 30 integrally coupled to the pressure bag 20, etc. In consideration of this, the first sheet 21 and the second sheet 22 may have different thicknesses.

The frames of the first sheet 21 and the second sheet 22 are fused to each other by a fusion method, so that the air storage space 24, which will be described later, is formed in an airtight manner. For example, the above-mentioned fusion method may include, but is not limited to, a heat fusion method, and the present application includes various methods for interconnecting the frames of the first sheet 21 and the second sheet 22. Needless to say, the fusion method is applicable.

The third sheet 23 is disposed in front of the first sheet 21 and may be, for example, a translucent or transparent synthetic resin film.

By joining the left and right end portions of the third sheet 23 to the left and right end portions of the pressure bag 20 by a fusion method, an infusion bag accommodating portion 231 is formed as shown in FIG. 4 .

The infusion bag accommodating part 231 may be a space in which the infusion bag 30 can be removably housed. For reference, in the case of the infusion bag pressurizing device 200 according to another embodiment of the present application, which will be described in detail below, the infusion bag 30 and the pressurizing bag 20 are combined as one body, so that the infusion bag accommodating section 231 is not provided. I can do it.

An upper end opening 232 is formed at the upper end of the infusion bag accommodating section 231, and a lower end opening 233 is formed at the lower end of the infusion bag accommodating section 231.

That is, the third sheet 23 is connected to both left and right ends of the first sheet 21 in a kind of "belt" form, and is a member capable of pressurizing the infusion bag 30, as shown in FIG. be.

Since the upper and lower ends of the infusion bag accommodating part 231 are open, the user can easily insert or pull out the infusion bag 30 through the upper opening 232 or the lower opening 233 of the infusion bag accommodating part 231.

The air storage space 24 is a space in which air injected from the outside can be stored, and in this embodiment, the inner surface of the first sheet 21 and the inner surface of the second sheet 22 cooperate with each other. It is formed by

The air inlet 25 is an air inlet communicating with the air storage space 24, and is provided at the center of the lower end of the back surface of the pressurizing bag 20, as shown in FIG.

The infusion bag hook 26 is an annular member for hanging the infusion bag 30, and is provided at the upper end of the front surface of the pressure bag 20, as shown in FIG.

The spacing member 27 is a member for restraining the pressure bag 20 from expanding excessively during the expansion process.

In this embodiment, the spacing member 27 is disposed in the air storage space 24, and as shown in FIG. 5, one end is joined to the inner surface of the first sheet 21 by a fusion method, The other end portion is bonded to the inner surface of the second sheet 22 by a fusion method.

As shown in FIG. 4, the spacing member 27 is preferably a flexible member that cannot substantially resist shear forces.

However, it is preferable that the spacing member 27 can sufficiently withstand the tensile force generated by the aerodynamic force.

In this embodiment, the spacing member 27 may be made of the same synthetic resin film as the third sheet 23, but is not limited thereto.

On the other hand, according to the first embodiment of the present application related to the arrangement of the spacing member 27 of the infusion bag pressurizing device 100, 200, the spacing member 27 is arranged in the pressurizing bag as shown in FIGS. 1 and 2a. The pressure bag 20 can be linearly extended in the vertical direction along an imaginary first central axis C1 extending from the upper end of the pressure bag 20 to the lower end of the pressure bag 20. As another example, according to the second embodiment of the present application, the spacing member 27 extends from the left end of the pressure bag 20 to the right end of the pressure bag 20, as shown in FIG. 2b. It can be linearly extended in the left-right direction (horizontal direction) along the imaginary second central axis C2.

In this regard, although not shown in the drawings, according to embodiments of the present application, the spacing member 27 may be moved in a diagonal direction defined by the left-right direction and up-down direction (for example, in the 1 o'clock direction in FIGS. 2a to 3). (from 7 o'clock to 7 o'clock, or from 11 o'clock to 5 o'clock, etc.) or along a predetermined inclined direction that is relatively oblique to the horizontal and vertical directions. The plurality of spacing members 27 may be arranged at various positions and intervals with respect to the pressure bag 20, such as in an X-shaped cross shape, etc.).

Meanwhile, referring to FIGS. 1 and 2a, a plurality of the spacing members 27 are provided and are spaced apart from each other by a predetermined spacing W1 along a second central axis C2 that intersects the first central axis C1. However, the present invention is not limited to this, and according to embodiments of the present application, the spacing between the spacing members 27 may be set differently for at least some of the pair of spacing members 27. can be.

Similarly, referring to FIG. 2b, the spacing member 27 arranged along the second central axis C2 (for example, sometimes referred to as a horizontal arrangement) is also preliminarily arranged along the first central axis C1. Although the spacing members 27 may be arranged at a predetermined distance from each other, the present invention is not limited thereto. may be set differently for each section.

In connection with this, according to an embodiment of the present application, in the case of the spacing member 27 extending linearly along the second central axis C2, the infusion contained in the infusion bag 30 continues to be discharged to the outside. Pressurize the undischarged infusion fluid remaining at the bottom of the bag 30 while the upper part of the bag 20 (for example, the upper region relative to the remaining volume of infusion fluid in the infusion bag 30) is rolled along the lower direction to infuse the infusion fluid. In the process of pressurizing the remaining infusion solution area of the bag 30 in the downward direction, even when the remaining infusion volume is relatively small, the spacer 27 is designed to easily apply downward pressure by the spacer 27. Although the spacing members 27 may be arranged in such a manner that the distance between them gradually decreases over time, the present invention is not limited thereto.

Further, according to an embodiment of the present application, some of the plurality of spacing members 27 include vertical members extending along the first central axis C1, and the remaining parts extend along the second central axis C2. It may be provided in a combination of a left-right arrangement (horizontal arrangement) and a vertical arrangement (vertical arrangement) including an extending horizontal member. For example, the above-mentioned vertical member may be arranged on the upper side of the pressure bag 20, and the above-mentioned horizontal member may be arranged on the lower side of the pressure bag 20, but the invention is not limited to this. do not have.

In this embodiment, the spacing member 27 includes a band-shaped member having a predetermined thickness T and width H+2S, as shown in FIG.

Here, the width H+2S of the spacing member 27 corresponds to the maximum separation distance H between the first sheet 21 and the second sheet 22 when the pressure bag 20 is inflated to the maximum, as shown in FIG. I get to decide.

As a result, the air storage space 24 includes at least one unit space 24a that is spatially separated by the spacing member 27, as shown in FIG.

In this embodiment, since the length L1 of the spacing member 27 is formed shorter than the length L of the pressure bag 20, as shown in FIGS. The upper and lower ends of 24a are all in communication with each other.

In this embodiment, the upper and lower ends of the plurality of unit spaces 24a are all in communication with each other, all the unit spaces 24a have internal spaces of the same capacity, and the air inlet 25 is Since the unit spaces 24a are provided at the center of the lower end of the back surface of the pressure bag 20, the unit spaces 24a can be expanded at substantially the same expansion speed.

Below, an example of a method of using the infusion bag pressurizing device 100 or the infusion bag pressurizing device 200 having the above-described configuration will be described.

First, as shown in FIG. 3, the infusion bag 30 is attached to the infusion bag accommodating section 231, and the infusion bag 30 is fixed by hanging on the infusion bag hook 26. However, in the case of an infusion bag pressurizing device 200 according to another embodiment of the present application in which a pressurizing bag 20 and an infusion bag 30 are integrally combined, which will be described later, the infusion bag accommodating section 231 is not provided. 30 to the infusion bag storage section 231 can be omitted.

When air is not injected into the air storage space 24 of the pressurizing bag 20, the pressurizing bag 20 remains uninflated, as shown in FIG. At this time, the spacing member 27 also maintains its folded state.

When a separate air injection device (not shown) is connected to the air injection port 25 and the air injection device is moved, air flows into the air storage space 24, and the pressurization bag 20 is moved as shown in FIG. It will begin to expand as shown in the figure.

The air injection device (not shown) may have various configurations, such as a piston type pump, an electrically operated air pump, etc., so a detailed description thereof will be omitted.

By injecting air into the air storage space 24 of the pressurizing bag 20, the pressurizing bag 20 gradually expands, and the spacing member 27 becomes in a stretched state as shown in FIG. , the distance H between the first sheet 21 and the second sheet 22 is restrained from increasing beyond a predetermined value.

At this time, the upper and lower ends of the plurality of unit spaces 24a are all in communication with each other, the unit spaces 24a all have internal spaces of the same capacity, and the air inlet 25 is connected to the Since the unit spaces 24a are provided at the center of the lower end of the back surface of the pressure bag 20, the unit spaces 24a expand at substantially the same expansion speed.

When the maximum amount of air is injected into the air storage space 24, the middle part of the pressure bag is partitioned by the spacing member 27, unlike the conventional pressure bag, which has a thicker thickness than the edge part. Although the thickness of the plurality of unit spaces 24a may be maintained relatively uniform, the thickness is not limited to this, and according to embodiments of the present application, the distance between the spacing members 27 or the spacing members 27 may be maintained relatively uniform. 27 is appropriately adjusted, a predetermined unit space 24a among the plurality of unit spaces 24a is expanded to be relatively thicker than the remaining unit spaces 24a, but is expanded relatively thinly. Expanded forms can also be provided.

When the internal air pressure of the air storage space 24 increases, as shown in FIG. Due to the difference in external atmospheric pressure, the infusion stored in the infusion storage space 31 of the infusion bag 30 can be discharged to the outside through the infusion outlet 32 .

The infusion discharged through the infusion outlet 32 may be injected into a blood vessel through the cap part 33 and a drip tube (not shown).

The infusion bag pressurizing device 100 configured as described above is a device that can pressurize the infusion bag 30 in which an infusion is stored, and includes an air storage space 24 that can accommodate air, and the air storage space. The air storage space 24 includes a pressurizing bag 20 that is provided so as to be able to pressurize the infusion bag 30 by expanding when air flows into the infusion bag 24 . The spacing member 27 includes at least one divided unit space 24a, and one end of the spacing member 27 is coupled to the inner surface of one end of the pressurizing bag 20 when the spacing member 27 is disposed in the air storage space 24. By connecting the other end to the inner surface of the other end of the pressure bag 20, the pressure bag 20 is restrained from excessively expanding or distorting in the front-rear direction C3, and the pressurization time is It has the advantage of being able to reduce

After all, when the infusion bag pressurizing devices 100 and 200 are used, there is no "distortion phenomenon" between the pressurizing bag 20 and the infusion bag 30, so unlike the conventional method, the infusion flow is not obstructed and the user can It has the advantage that it is easy to visually confirm the amount of infusion discharged, and the sheet is directly adhered to form an air storage space, which is different from the conventional registered patent (registration number 10-2070393) in which the spacer 27 is not provided. ), a large amount of air was required for the pressurization pressure to reach a predetermined pressure level; however, according to the infusion bag pressurization devices 100 and 200 disclosed in the present invention, There is an advantage that a predetermined pressure level can be easily reached with only a small amount of air, and there is also an advantage that the infusion solution contained in the infusion bag 30 can be discharged without leaving any residue.

In the infusion bag pressurizing device 100, since the spacing member 27 includes a flexible member that cannot substantially resist shear force, air is not injected into the pressurizing bag 20, as shown in FIG. Since the spacing member 27 can be folded in this state, there is an advantage that the overall storage volume is reduced.

On the other hand, in the case of the infusion bag pressurizing device 100 of a type in which the unit space portions 24a are provided so as to expand at substantially the same expansion speed, the pressurizing bag 20 expands at substantially different expansion speeds. There is an advantage in that the entire area of the infusion bag 30 can be pressurized with uniform pressure without the risk of distortion.

Unlike this, in the case of an infusion bag pressurizing device 100 of a type in which the standard, expansion speed, etc. of a predetermined unit space 24a among a plurality of unit spaces 24a are set differently from those of the remaining unit spaces 24a, There may be an advantage in that the pressurization of the infusion fluid contained in the infusion bag 30 is facilitated.

To give a more specific example, in the case of the infusion bag pressurizing device 100 including a plurality of spacing members 27 extending linearly along the second central axis C2, a plurality of unit spaces formed by the spacing members 27 Since the upper unit space formed on the upper side of 24a is configured to expand preemptively, it is possible to pressurize the infusion liquid located relatively below in a downward direction so as to squeeze the infusion bag 30. This allows the pressurization time to be further shortened.

In addition, as described in detail above, the infusion bag pressurizing device 100 is configured such that the interval holding member 27 is located at a virtual first point extending from the upper end of the pressurizing bag 20 to the lower end of the pressurizing bag 20. Either a plurality of members are provided extending along the central axis C1 and arranged spaced apart from each other along the second central axis C2 (in other words, a vertical arrangement), or the spacing member 27 is connected to the pressurizing bag. A plurality of pressurizing bags 20 are provided extending along an imaginary second central axis C2 extending from the left end of the pressure bag 20 to the right end of the pressurizing bag 20, and are arranged in a state that they are spaced apart from each other along the first central axis C1. In other words, the pressure bag 20 can be easily deformed to surround the infusion bag 30 while inflating.

Furthermore, the infusion bag pressurizing device 100 further includes an infusion bag accommodating section 231 that can removably accommodate the infusion bag 30, so it has the advantage that it can be reused many times as long as the infusion bag 30 is replaced. be.

On the other hand, FIGS. 8a and 8b show an infusion bag pressurizing device 200, which is another embodiment of the present invention. Since the infusion bag pressurizing device 200 has most of the same configuration and effects as the above-mentioned infusion bag pressurizing device 100, only the differences between the two will be described below.

The infusion bag pressurizing device 200 does not include the infusion bag accommodating section 231, which is a space in which the infusion bag 30 can be removably housed. are integrally connected to.

That is, the difference is that the first sheet 21 and the third sheet 23a cooperate with each other to form the infusion storage space 31 of the infusion bag 30.

Therefore, although the infusion bag pressurizing device 200 is a one-time device unlike the reusable infusion bag pressurizing device 100, it does not require a process for the medical personnel to attach a separate infusion bag. It has the advantage that emergency patients can be treated quickly and there is no risk of medical accidents such as cross contamination.

In this embodiment, the spacing member 27 includes a flexible film-type member that cannot substantially resist shear force, but is in the form of a beam that can resist shear force and bending force of a certain magnitude. Needless to say, it may be a member of. When the spacing member 27 is a beam-shaped member, the pressure bag 20 has the advantage of being able to withstand external bending force applied around the second central axis C2.

In this embodiment, as shown in FIG. However, it goes without saying that it is possible to extend linearly along the second central axis C2 that intersects the first central axis C1.

On the other hand, in the case of the pressure bag 20 in which the spacing member 27 extends linearly along the second central axis C2, according to an embodiment of the present application, the infusion contained in the infusion bag 30 continues to be discharged to the outside. In response to the fact that the remaining infusion volume is decreasing and the infusion that has not been discharged to the lower part of the infusion bag 30 remains, the upper part of the pressurizing bag 20 (for example, the upper part relative to the remaining infusion volume of the infusion bag 30 The residual infusion area of the infusion bag 30 is pressurized in the downward direction while the infusion bag 30 is rolled up in the downward direction, thereby promoting the discharge of the remaining infusion. In this regard, the upper part of the pressure bag 20 may be wound downward in a circular manner in the up-down direction, for example, with the spacing member 27 as an axis.

In this embodiment, the unit spaces 24a are arranged from the left end of the pressure bag 20 to the right end of the pressure bag 20, but from the upper end of the pressure bag 20 to the pressure bag 20. It goes without saying that they may be lined up to the bottom edge of the .

In this embodiment, the spacing member 27 is made of a film material that does not allow air to pass through, like the first sheet 21, but it goes without saying that it may be made of another material that allows air to pass through. stomach.

In this embodiment, the pressure bag 20 is manufactured using polyethylene film, but it goes without saying that it may be manufactured from other materials.

In this embodiment, various elements of the infusion bag pressurizing device 100 are fused to each other by a heat fusion method, but various fusion or bonding methods such as high frequency fusion and pounding fusion may be used. Needless to say, it's fine.

In this embodiment, the pressure bag 20 is formed by stacking and adhering two films, the first sheet 21 and the second sheet 22, but by using one pipe-shaped film. Needless to say, it may be formed. In such a case, there is an advantage that the number of times the heat fusion method is performed can be reduced.

Although the present invention has been described above, the technical scope of the present invention is not limited to the contents described in the above-mentioned embodiments, and equivalents or equivalents modified or changed by a person having ordinary knowledge in the technical field. It is clear that the configuration does not depart from the scope of the technical idea of the present invention.

Claims (8)

A device capable of pressurizing an infusion bag containing an infusion, the device comprising:
A pressurizing bag is provided to form an air storage space in which air can be stored, and to expand when air is introduced into the air storage space, thereby pressurizing the infusion bag. ,
The pressurizing bag includes a spacing member that spatially divides the air storage space into at least one unit space,
The spacing member has one end coupled to an inner surface of one end of the pressure bag and the other end coupled to the inner surface of the other end of the pressure bag when disposed in the air storage space. An infusion bag pressurizing device that restrains the pressurizing bag from excessively expanding. The infusion bag pressurizing device according to claim 1, wherein the spacing member includes a flexible member that is substantially incapable of resisting shear forces. The infusion bag pressurizing device according to claim 1 or 2, wherein the spacing member includes a band-like member extending in the length direction and having a predetermined thickness and width. The infusion bag pressurizing device according to any one of claims 1 to 3, wherein the unit spaces are provided to expand at substantially the same expansion rate. The spacing member extends along an imaginary first central axis extending from the upper end of the pressure bag to the lower end of the pressure bag, and a plurality of the spacing members are provided and intersect with the first central axis. The infusion bag pressurizing device according to any one of claims 1 to 4, wherein the infusion bag pressurizing device is arranged in a state separated from each other at a predetermined interval along a second central axis. The infusion bag pressurizing device according to claim 5, wherein at least one of the upper and lower ends of the plurality of unit spaces communicates with each other. The infusion bag pressurizing device according to any one of claims 1 to 6, further comprising an infusion bag accommodating portion that can detachably house the infusion bag. The infusion bag pressurizing device according to any one of claims 1 to 7, wherein the infusion bag is integrally coupled to the pressurizing bag.

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