JP7637358B2 - Bandage wrap - Google Patents

Description

Article 30, paragraph 2 of the Patent Act applied. Exhibited at the 6th Medical and Nursing General Exhibition (Medical Japan Osaka) held at Intex Osaka from February 26 to 28, 2020, and featured in the Nikkan Kogyo Shimbun on May 21, 2020.

The present invention relates to a bandage wrapper that can wrap an elastic bandage with constant tension.

When the blood flow rate in the veins slows, it becomes easier to develop deep vein thrombosis (DVT, economy class syndrome), which causes blood clots. In particular, the lower limbs, where blood flows against gravity, are more susceptible to blood clots if anesthesia induces blood vessel dilation or if muscles relax and the pumping function becomes insufficient. There is a risk that this blood clot may break off (become free) and become lodged in the pulmonary artery, causing pulmonary embolism.

As a method for preventing deep vein thrombosis, there are medical elastic stockings as disclosed in Patent Document 1. Medical elastic stockings exert a much stronger pressure than regular stockings, and are designed to exert the strongest pressure on the ankles and weaken toward the thighs in order to facilitate the flow of venous blood and lymph fluid toward the heart. However, medical elastic stockings are prefabricated in sizes S, M, and L, and are not made to order, so the sizes do not fit many patients. Medical elastic stockings are also used to prevent lymphedema (swelling), but prefabricated stockings do not fit patients with severe lymphedema or deformed limbs. Furthermore, the pressure required for deep vein thrombosis is different from that required for edema, but the pressure required for medical elastic stockings cannot be adjusted.

A method of wrapping an elastic bandage around the limbs, as disclosed in Patent Document 2, was then devised. Elastic bandages can be used on any shape of the lower limb, and have the advantage that the pressure and range of compression can be adjusted according to the condition of the disease and the limb. Even when elastic stockings cannot be worn, the size is not suitable, or they have been discontinued due to skin disorders, or stockings cannot be worn due to surgery or deformation of the lower limb, the limbs can be compressed using an elastic bandage. Compression with this elastic bandage is used not only to prevent deep vein thrombosis, but also to stop bleeding, control edema, treat varicose veins, and treat lymphedema. Furthermore, elastic bandages are not only used for "compression," but also as bandages for "wound protection," for "fixation" to fix and rest fractures, dislocations, and sprains, and for "holding and support" to hold dressings and medicines that are prone to slipping, and to support IV tubes and splints.

Elastic bandages must be wrapped around the affected area with a specified range of pressure. For example, to prevent deep vein thrombosis, the pressure must be between 26.7 hPs and 40 hPs (20 mmHg and 30 mmHg). Capillary pressure is 42.7 hPs, so if an elastic bandage is applied with more pressure than this, the capillaries will become blocked and blood will no longer flow to the skin tissue, so to prevent bedsores, the bandage must be kept below this number. Furthermore, when compressing the lower limbs, in order to facilitate the flow of venous blood and lymph fluid toward the heart, the bandage must be wrapped with the strongest pressure at the ankles and weaker pressure toward the thighs. For example, the ratio of ankles to calves to thighs is 10:7:4.

Elastic bandages are usually applied by nurses, but to apply the required pressure to the affected area, the bandage must be pulled with the required tension and wrapped the required number of times. Wrapping the bandage the required number of times is not particularly difficult, but pulling the bandage with the required tension is extremely difficult and requires skill. Although various techniques are taught, the current situation is that nurses rely on their sense, which creates the problem of individual differences. In addition, when wrapping a wide elastic bandage, the elastic bandage is pulled by placing it against the thumb and the ball of the foot, so the tension is not uniform across the width. Because of this variation in pressure caused by the elastic bandage, it is necessary to frequently remove the elastic bandage and check for abnormalities such as redness.

Patent document 3 discloses an automatic bandager that adjusts the tension of the bandage by adjusting the rotational force of the bandage with finger pressure. This causes problems such as the finger pressure not being constant and the tension of the bandage changing if the radius of the bandage being wrapped changes.

In addition, even if the elastic bandage is pulled out of the bandage winding device with a certain tensile force, there is a risk that the part that is not yet wrapped around the affected area will come loose. In particular, until the first wrap, the tip of bandage B must be held down with the other hand, otherwise the bandage will come off the affected area, so the bandage winding device 1C must be turned once with one hand, which often causes the part that is not yet wrapped around the affected area to come loose.

Therefore, the inventor of the present application came up with a bandage wrapper as shown in Patent Document 4, in which the tension of the bandage does not change even if the radius of the bandage changes, by pressing the outer plate with an appropriate amount of hand pressure on the bandage passing between the two plate surfaces of the bandage outlet.

The inventors of this application have also devised a bandage wrapper that allows even non-experts to apply a predetermined tension to the elastic bandage by changing the length of the narrow path through which the bandage is unwound, as shown in Patent Document 5.

JP 2014-188116 A Special Publication No. 2015-526224 JP 2001-137290 A JP 2018-143265 A JP 2019-50989 A

The bandage winding device of Patent Document 4 has an adjustment screw for adjusting the gap between the two plate surfaces through which the bandage passes, but as shown in FIG. 4 of Patent Document 4, the support 33 on which this adjustment screw is held has two guides 33c that simply fit into the guide holes 21d of the case 21, and the support 33 is not held or fixed to the case 21. Therefore, unless the support 33 is pressed by the thumb or the ball of the foot, the gap between the two plate surfaces through which the bandage passes is not maintained at a specified dimension. In other words, Patent Document 4 has the disadvantage that, even if the adjustment screw is attached, the bandage cannot be pulled with a specified tension unless it is pressed by the thumb or the ball of the foot. For example, when wrapping multiple bandages around a lower limb, the bandage is switched between the right and left hands, and at this time, the pressure on the support 33 of Patent Document 4 is interrupted, which may cause the bandage to loosen.

The bandage winding device of Patent Document 5 has a double structure of an inner case and an outer case to provide a narrow and long path for the bandage to be unwound. This has the disadvantage of making the outer diameter larger. For female nurses with small hands, a larger outer diameter makes it difficult to wind a bandage, so it is preferable to have a device that is as small as possible.
SUMMARY OF THE PRESENT EMBODIMENT An object of the present invention is to provide a small-sized bandage winding device that can pull an elastic bandage with a predetermined tension without the need for manual pressure.

To solve the above problems, one aspect of the bandage winding device of the present invention is characterized in that a gap is provided at the bandage pull-out opening of a cylindrical bandage storage section that stores a bandage, which applies resistance to the pull-out of the bandage, and the gap is formed by a passage wall through which the bandage passes and a pressure element fixed opposite the passage wall.

The bandage winding device of the present invention applies tension to the bandage by the resistance of the gap, so there is no need for multiple cases and it is compact. In addition, because the gap is formed by a pressure element fixed to the passage wall, the gap remains constant, eliminating the need for manual pressure and allowing for a stable tension to be maintained, making it easy to wind the bandage.

In the bandage wrapper of the present invention, it is preferable that the indenter is rotatably fixed and has an operating part that rotates the indenter and adjusts the gap. With this configuration, the gap with the opposing passage wall can be changed by rotating the indenter with the pressure operating part, and the tension of the bandage can be adjusted.

In the bandage winding device of the present invention, the operating unit is preferably provided on the side of the bandage storage unit. With this configuration, the operating unit can be easily operated with a finger even during the bandage winding operation, and the tension of the bandage can be easily adjusted.

In the bandage wrapper of the present invention, it is preferable to provide a protrusion along the side of the bandage storage section. With this configuration, the palm of the hand can be placed on the protrusion and the device can be rotated, making it easy to switch between left and right hands. This configuration is also very easy to use for nurses with small hands.

In the bandage winding device of the present invention, it is preferable that a roller is provided on the outside of the bandage storage section, and that the roller is deformable. The roller provided on the outside of the bandage storage section can reduce loosening of the bandage unwound from the bandage winding device, and such a configuration of the roller allows the roller to follow the curvature of the human body, making the winding operation easier.

1 is a line graph showing the relationship between tension of an elastic bandage and compression pressure applied by the elastic bandage, which is the result of an experiment conducted by the inventor of the present invention. A is an image of the adjustment knob side of a prototype with an elastic bandage attached to the bandage wrapper of the embodiment, B is an image of the opposite side to A, and C is an image of the roller side. A is an image of the gear side, and B is an image of the opposite side to A. 1 is an image showing how to wrap an elastic bandage. FIG. 1A is a right side view showing the right side of the bandage wrapper of the embodiment, and FIG. 5A is a cross-sectional front view taken along line VIA-VIA of FIG. 5A, and FIG. 5B is a cross-sectional bottom view taken along line VIB-VIB of FIG. 5A projected from the bottom surface of A. FIG. 7 is a right side cross-sectional view taken along line VII-VII of FIG. 6A. A is an image showing the use of the first roller, and B is an image showing the use of the second roller.

The following describes the mode for carrying out the present invention with reference to the embodiments and drawings. However, the embodiments shown below are not intended to limit the present invention to those described herein, and the present invention is equally applicable to various modifications that do not deviate from the technical ideas set forth in the claims. In addition, in each drawing used for explanation in this specification, each component is shown at a different scale so that each component is large enough to be recognizable on the drawing, and is not necessarily shown in proportion to the actual dimensions.

The background to the invention of the bandage wrapper 1 of the embodiment will be explained using Figure 1. The inventors conducted experiments on the tension of the elastic bandage EB and the compression pressure applied by the elastic bandage EB. As a result, as shown in Figure 1, it was found that there is a correlation between the tension of the elastic bandage EB and the compression pressure. For example, if an approximation equation is obtained from the experimental data using the least squares method, it is possible to determine the tension of the elastic bandage EB to achieve the desired compression pressure. Conversely, it is also possible to determine the compression pressure from the tension. Based on these experimental results, the inventors thought that if they invented a bandage wrapper 1 that adjusts the tension, it would be possible to wrap the elastic bandage EB at a constant desired compression pressure.

The compression pressure considered suitable for compression therapy is 26.7 hPs to 40 hPs (20 to 30 mmHg), so the tension of the elastic bandage EB suitable for compression therapy is approximately 6 N to approximately 13 N as shown in Figure 1. The inventors also conducted tensile tests on the tension and elongation of the elastic bandage EB. As a result, it was found that the bandage stretches rapidly when it exceeds 20 N, but at approximately 6 N to approximately 13 N, which is suitable for compression therapy, it stretches in proportion to the tension. Based on these results, the invention of the bandage wrapper 1 was made.

[Embodiment]
2 to 7, the configuration of the bandage wrapper 1 of the embodiment capable of wrapping the elastic bandage EB at a constant desired compression pressure will be described. Note that Fig. 5A is a perspective view of the right side of the bandage wrapper in order to show the main parts of the present invention.
The bandage winding device 1 comprises a bandage storage section 2, a first roller R1, and a second roller R2.

[Bandage storage section]
The bandage storage section 2 stores the elastic bandage EB and has an adjustment function for changing the resistance at which the elastic bandage EB is unwound in order to adjust the tension when the elastic bandage EB is wrapped around the bandage. Specifically, the bandage storage section 2 is made up of a case 3, a bottom cover 4, a first roller upper attachment 5, a second roller upper attachment 6, a top cover 7, and a gap adjustment section 8.

The case 3 is made of injection-molded synthetic resin or extruded aluminum material, and is cylindrical with a C-shaped cross section (with the opening facing downward) as shown in Figures 4 and 7. Bosses 31 are formed at both ends of the C shape and at three points in the center, and female threads 32 (see 32 in Figure 6) are threaded at both ends of each boss 31. As shown in Figures 2B and 7, the central boss 31 protrudes outward along the cylindrical side of the case 3, forming a protrusion in the bandage storage section 2.

As shown in FIG. 6A, the bottom cover 4 covers the bottom of one end of the case 3 and houses part of the gap adjustment unit 8 described below. Specifically, the bottom cover 4 is made up of an inner cover 41, an outer cover 42, a first roller bottom mounting fixture 43, and a second roller bottom mounting fixture 44.

The synthetic resin inner lid 41 and outer lid 42 are made of roughly the same shape, consisting of a roughly circular portion that covers the opening of the case 3 and a portion that protrudes from the circular portion to mount the first roller R1 and second roller R2 (portions that form the first roller bottom mounting fixture 43 and second roller bottom mounting fixture 44, which will be described next). The inner lid 41 and outer lid 42 form a space on the opposing side, and the bottom lid 4 is configured to accommodate part of the gap adjustment part 8 within this formed space.

The first roller bottom mounting fixture 43 is attached to one end of the first roller R1, and the second roller bottom mounting fixture 44 is attached to one end of the second roller R2. The first roller bottom mounting fixture 43 extends integrally from each of the inner lid 41 and the outer lid 42, and the portion extending from the inner lid 41 and the portion extending from the outer lid 42 overlap to form one first roller bottom mounting fixture 43. Similarly, the second roller bottom mounting fixture 44 extends integrally from each of the inner lid 41 and the outer lid 42, and the portion extending from the inner lid 41 and the portion extending from the outer lid 42 overlap to form one second roller bottom mounting fixture 44.
5A and 6B, the bottom cover 4 is screwed onto the three bosses 31 of the case 3 with three second bolts B2 to close the bottom, which is one end of the case 3.

Next, the other end of the case 3 will be described. As shown in FIG. 5B, the first roller-mounted fixture 5 and the second roller-mounted fixture 6 are parts for mounting the first roller R1 and the second roller R2, and are shaped to protrude from the case 3 and are made of synthetic resin. As shown in FIG. 5B and FIG. 6B, the first roller-mounted fixture 5 and the second roller-mounted fixture 6 are screwed to the boss 31 at the end of the case 3 by the third bolt B3. This first roller-mounted fixture 5 faces the first roller bottom mounting fixture 43 on the opposite side via the first roller R1. Also, the second roller-mounted fixture 6 faces the second roller bottom mounting fixture 44 on the opposite side via the second roller R2.

As shown in FIG. 6A, the top cover 7 covers the upper opening at the other end of the case 3. The top cover 7 is also made of synthetic resin. As shown in FIG. 5B and FIG. 6B, the top cover 7 is screwed to the top of the central boss 31 of the case 3 with a third bolt, thereby closing the top of the case 3.

The top cover 7 is provided with two protruding screw caps 71 that hide the third bolt B3 that screws together the first roller-mounted attachment 5 and the second roller-mounted attachment 6. The screw caps 71 fit into the recesses 51, 61 into which the heads of the third bolts B3 of the first roller-mounted attachment 5 and the second roller-mounted attachment 6 fit. The configuration of the bandage storage section 2 in this embodiment makes the opening side of the case 3 prone to opening due to bending of the case 3, but the screw caps 71 fitting into the recesses 51, 61 can prevent the case 3 from opening.

The gap adjustment unit 8 provides an adjustment function that changes the resistance with which the elastic bandage EB is unwound. Specifically, the gap adjustment unit 8 is made up of a passage wall 81, a presser 82, an adjustment knob 83, and a transmission gear 84.

The passage wall 81 is provided along the opening of the case 3 and serves as a passage through which the elastic bandage EB unrolled from the case 3 passes, and extends from one boss 31 of the case 3 as shown in FIG. 7. More specifically, as shown in FIG. 7, the passage wall 81 is composed of a horizontal passage wall that forms the passage end, a diagonal passage wall that connects to the horizontal passage wall, and a vertical passage wall that connects to the diagonal passage wall and reaches the boss 31 of the case 3.

The indenter 82 applies resistance when unwinding the elastic bandage EB by bringing the tip 82a of the indenter 82 into contact with the elastic bandage EB passing over the passage wall 81. Specifically, the indenter 82 is provided along the opening of the case 3, similar to the passage wall 81, and has a cross section with rounded corners (oval track) as shown in FIG. 7. Also, as shown in FIG. 7, the indenter 82 is fixed rotatably relative to the passage wall 81. The gap S between the tip 82a of the indenter 82 and the passage wall 81 becomes the passage through which the elastic bandage EB is unwinded. This gap S provided at the bandage withdrawal port applies resistance to the elastic bandage EB.

The indenter 82 has shafts formed on both ends, one of which is supported by the second roller upper mounting fixture 6 (see Figures 4 and 5B), and the other by the outer cover 42 of the bottom cover 4 (see Figure 6A). This configuration allows the indenter 82 to rotate.

By rotating the indenter 82, the gap S formed between the tip 82a of the indenter 82 and the passage wall 81 changes. And by changing the gap S, the resistance to the unwinding of the elastic bandage EB changes. In other words, the gap S gradually widens and narrows as the indenter 82 rotates, and the resistance changes accordingly.

The shape of the tip 82a of the indenter 82 is preferably an arc shape as shown in FIG. 7. The inventors initially designed the shape of the tip 82a of the indenter 82 to be a rounded rectangle, which is different from the shape of this embodiment. However, even when the rounded rectangle indenter 82 was rotated, it was difficult to adjust the resistance applied to the elastic bandage EB due to the straight line portion of the tip 82a. On the other hand, when the tip 82a was shaped as in this embodiment, the resistance applied to the elastic bandage EB could be changed linearly by rotating the indenter 82, and the resistance could be easily and precisely adjusted.

The adjustment knob 83 is operated by the user when rotating the indenter 82 to change the gap S. The adjustment knob 83 is disk-shaped, and its side surface 83a is knurled to make it easy to rotate with the fingers. The adjustment knob 83 is disposed in the space formed by the inner cover 41 and the outer cover 42 of the bottom cover 4, and a part of the side surface 83a of the adjustment knob 83 protrudes from the first roller bottom mounting fixture 43 side of the bottom cover 4, as shown in FIG. 5A. This protrusion of the adjustment knob 83 is provided on the side surface of the bandage storage section 2, and constitutes an operating section that rotates the indenter 82 to adjust the gap S.

The adjustment knob 83 also has an adjustment knob gear 831, and is journaled between the inner lid 41 and the outer lid 42 inside the bottom lid 4. The adjustment knob 83, which is the operating part, can be rotated by the user's finger.

In addition, inside the bottom cover 4, the transmission gear 84 and the indenter gear 821, which rotates together with the indenter 82, are also journaled by the inner cover 41 and the outer cover 42. Therefore, as shown in Figures 5A and 6A, the rotation of the adjustment knob 83 by the user causes the adjustment knob gear 831 to rotate, which is then transmitted to the rotation of the indenter gear 821 of the indenter 82 via the transmission gear 84.

In this way, the bandage storage section 2 has a passage wall 81 through which the elastic bandage EB passes and a facing indenter 82 fixed to it, forming a gap S. As a result, a constant gap S is maintained, and a stable tension can be maintained at all times compared to when the gap S is formed by pressing with the hand, making it easier to wrap the elastic bandage EB.

In addition, when the adjustment knob 83 of the bandage storage section 2 is rotated, the fixed indenter 82 rotates, changing the gap S, changing the resistance with which the elastic bandage EB is unwound, and changing the tension with which the elastic bandage EB is wrapped.

The adjustment knob 83 is located on the side of the bandage storage section 2 and also at the end of the bandage storage section 2. This allows the user to easily operate the adjustment knob 83 with their fingers while still holding the bandage wrapper 1. This makes it easy to change the pressure, for example, when wrapping the elastic bandage EB around the lower leg, so that the pressure is strongest at the ankle and weaker towards the thigh. Furthermore, the gap S is maintained even if the finger is removed from the adjustment knob 83, so there is no need to constantly operate the adjustment knob 83.

In addition, as shown in Figures 3A and 6A, the adjustment knob 83 of this embodiment is slidable in the direction of the rotation axis, and the shaft 833 of the adjustment knob 83 is normally protruded from the outer lid 42 by the coil spring 832. At this time, the inclined convex portion (not shown) provided on the flat surface of the adjustment knob gear 831 and the inclined convex portion (not shown) provided on the inside of the outer lid 42 engage with each other, allowing the adjustment knob 83 to rotate only in one direction (the direction in which the gap S caused by the indenter 82 widens). Therefore, when the bandage winding device 1 is in use, the adjustment knob 83 can normally be rotated only in the direction that weakens the tension of the elastic bandage EB. On the other hand, when the shaft 833 is pressed by the user's finger, the engagement between the inclined convex portion (not shown) provided on the flat surface of the adjustment knob gear 831 and the inclined convex portion (not shown) provided on the inside of the outer lid 42 is released, allowing the adjustment knob 83 to rotate in the other direction (the direction in which the gap S caused by the indenter 82 narrows). Therefore, for example, when rewinding the elastic bandage EB or returning the indenter 82 to its original position, the shaft 833 is pressed by the user.

[First roller/second roller]
The first roller R1 and the second roller R2 come into close contact with the body and support the bandage storage section 2 when the elastic bandage EB is wrapped with the bandage wrapping device 1. The first roller R1 also functions as a roller for pressing the elastic bandage EB that has been unwound outside the bandage storage section 2 toward the human body.

In FIG. 4, the first roller R1 is disposed in the opposite direction to the direction in which the elastic bandage EB is unwound from the bandage storage section 2, and the second roller R2 is disposed in the direction in which the elastic bandage EB is unwound. The first roller R1 and the second roller R2 are the same part. Therefore, their configurations will be explained using the cross-sectional portion of the first roller R1 in FIG. 6B.

As shown in FIG. 6B, the first roller R1 is composed of a core R11 divided into seven pieces, bearings R12 at both ends, and a skin R13 that covers the core R11 and the bearings R12. The core R11 is made of synthetic resin (e.g., ABS resin), and the skin R23 is a pipe made of soft synthetic resin (e.g., silicone). In the prototype shown in FIG. 2 to FIG. 4, for example, as can be seen in FIG. 2C, the skin R13 of the first roller R1 is opaque, and the skin R23 of the second roller R2 is translucent.

At one end of the first roller R1, as shown in FIG. 6B, the first bolt B1 screwed into the first roller top mounting fixture 5 fits into the bearing R12 and core R11 on the one end side. At the other end of the first roller R1, the first bolt B1 screwed into the first roller bottom mounting fixture 43 fits into the bearing R12 and core R11 on the other end side.

With this configuration, the first roller R1 is rotatably supported on the bandage storage section 2 between the first roller top mounting fixture 5 and the first roller bottom mounting fixture 43. The second roller R2 is also rotatably supported on the bandage storage section 2 between the second roller top mounting fixture 6 and the second roller bottom mounting fixture 44.

The first roller R1 is also deformable along the rotation axis direction because the core R11 is divided into multiple parts and the skin R13 is soft. This makes it easier for the first roller R1 to follow the curvature of the human body. The same is true for the second roller R2.

[How to use]
Next, a method of using the bandage winding device 1 of this embodiment will be described. First, as shown in Fig. 4, with the top cover 7 removed, the elastic bandage EB is placed in the case 3 in a counterclockwise direction. At this time, the elastic bandage EB is passed through the gap S between the tip 82a of the indenter 82 and the passage wall 81. Then, the top cover 7 is screwed to the case 3 with the third bolt B3. At this time, the elastic bandage EB that has passed through the gap S is folded back at the end of the passage wall 81 as shown in Fig. 4, and is pulled out toward the first roller R1 (not the second roller R2).

Then, as shown in Figures 8A and 8B, with the first roller R1 and the second roller R2 in close contact with the body, the bandage winding device 1 is moved with the second roller R2 at the front, and the elastic bandage EB is wrapped around the body. At this time, the first roller R1 and the second roller R2 flex to come into close contact with the curved surface of the body, so the work of winding the elastic bandage EB is stable, the tension is uniform, and the first roller R1 applies even pressure to the elastic bandage EB.

During this wrapping operation, the adjustment knob 83 is rotated according to the type of elastic bandage EB and the area to be wrapped so that the compression pressure of the elastic bandage EB becomes a predetermined value. In addition, the adjustment knob 83 can be rotated with the fingers of the hand holding the bandage winding device 1 even during the wrapping operation.

In addition, when the purpose of use of the elastic bandage EB is different, for example when it is used to protect a wound or fix a sprained area, the compression pressure may be changed. In this case, the adjustment knob 83 is operated to obtain the tension that obtains the desired compression pressure. In this way, the tension of the bandage winding device 1 can be adjusted according to the situation, so that the desired compression pressure can be obtained. Note that, although an example using the elastic bandage EB has been described in this embodiment, it is not limited to the elastic bandage EB, and the bandage winding device 1 can be used as a general bandage.

As shown in Figure 7, the central boss 31 of the case 3 is a protrusion that protrudes along the tubular side surface of the bandage storage section 2. This protrusion can be used to hook a finger (see Figure 8A) or to prevent the palm of the hand from slipping, making wrapping easier. In particular, when rotating the bandage winding device 1, the bandage winding device 1 is switched between the left and right hands, and this makes it easier to switch hands.

In the above embodiment, the first roller R1 and the second roller R2 have the same diameter, but they may have different diameters. By changing the diameter of the rollers, it is possible to accommodate various diameters of the affected area. In addition, by making the position of the rollers changeable, it is possible to accommodate various diameters of the affected area.

In addition, the direction in which the elastic bandage EB is stored in the case 3 and the route through which the elastic bandage EB is unwound from the gap S are not limited to the above-mentioned method, and other methods may be used. In this embodiment, the elastic bandage EB is moved with the second roller R2 side at the front. However, for example, the elastic bandage EB that is folded back at the end of the passage wall 81 and pulled out to the first roller R1 side can also be folded back again to the second roller R2 side through the upper side of the first roller R1, so that the elastic bandage EB is moved with the first roller R1 side at the front.

REFERENCE SIGNS LIST 1 Bandage winding device 2 Bandage storage section 3 Case 4 Bottom cover 7 Top cover 8 Gap adjustment section 81 Passage wall 82 Depressor 83 Adjustment knob S Gap

Claims (3)

A bandage storage section for storing bandages, the bandage storage section comprising a cylindrical single-walled case, a bottom cover for closing one end of the case, and a top cover for closing the other end of the case,
The case has an opening for withdrawing the bandage;
A gap is provided between a passage wall provided along the outside of the opening, through which the bandage drawn from the case passes, and a pressure piece fixed opposite the passage wall and in contact with the bandage as it passes, thereby providing resistance to the drawing of the bandage;
At the opening of the case, rollers supporting the bandage storage section are provided along the side of the case on both the front and rear sides of the opening in the bandage pull-out direction ,
The indenter has an elliptical cross section and is rotatably fixed;
A bandage wrapper comprising an operating section on an end side of the case for rotating the indenter and adjusting the gap . The bandage wrapper according to claim 1, characterized in that a protrusion for use in wrapping is provided along the side of the case in the bandage storage section. 2. The bandage wrapper according to claim 1, wherein the roller is made of a plurality of core members and a pipe-shaped skin covering the core members, and is deformable.

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