Bandage

The bandage design addresses the challenges of covering finger wounds by using a sheet substrate with a peelable release paper and intermittent cuts, ensuring proper coverage, reduced stiffness, and enhanced comfort.

JP7666805B2Active Publication Date: 2025-04-22LIBATAPE PHARM CO LTD +1
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Patent Information

Application Number
JP2021108972
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2021-06-30
Publication Date
2025-04-22
Estimated Expiration
2041-06-30

AI Technical Summary

Technical Problem

Conventional bandages struggle to properly cover and protect wounds on fingers, particularly at the fingertip and joint areas, due to issues like gaps between the bandage and the skin, increased stiffness, and discomfort.

Method used

A bandage design featuring a sheet substrate with an adhesive surface and a release paper that can be peeled off in three parts, allowing for intermittent cuts that enable the sheet substrate to be torn and wrapped around the finger without gaps, while minimizing adherence issues and discomfort.

Benefits of technology

The bandage effectively covers wounds on fingers without gaps, reduces stiffness and discomfort, and prevents unintended adherence or twisting, making it easier to apply and ensuring reliable protection.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a plaster applicable preferably, without hindrance, even to a hand finger.SOLUTION: A plaster 1 comprises: a sheet substrate 2 having an adhesion plane 2a on a back surface; and a release sheet 3 for covering the adhesion plane 2a of the sheet substrate 2 in a peelable manner. The plaster is configured with: a non-processed region A remaining on a center part in a longitudinal direction of the sheet substrate 2; processed regions B provided on both side parts in the longitudinal direction sandwiching the non-processed region A; and intermittent incisions 9 provided extending to the non-processed region A from both longitudinal ends of the sheet substrate 2 through cutting together with the release sheet 3, so as to allow the processed regions B on the sheet substrate 2 to be torn together with the release sheet 3 at the incisions 9, for use.SELECTED DRAWING: Figure 1
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Description

[Technical field]

[0001] The present invention relates to an adhesive bandage for covering and protecting a wound on the surface of the skin, and particularly to an adhesive bandage suitable for application to the fingers. [Background technology]

[0002] Adhesive bandages that hygienically protect wounds on the surface of the skin have been known in the past. A typical existing adhesive bandage mainly comprises a sheet substrate made of a urethane nonwoven fabric or the like, the reverse side of which is an adhesive surface that is removably covered with a release paper.

[0003] When using such a bandage, the release paper is peeled off to expose the adhesive surface of the sheet base material, and the adhesive surface is applied to the skin while the affected area is covered and protected with the sheet base material. Protection of the affected area with the sheet base material can be achieved either via a pad provided in the longitudinal center of the adhesive surface or without such a pad.

[0004] For example, a type without pads is suitable for cases such as chapped skin or cuts, where the main purpose is to protect the wound from water while containing the opening, whereas a type with pads is suitable for areas where the skin at the wound surface has severely broken down and is leaking fluid.

[0005] Incidentally, prior art literature relating to this type of adhesive bandage includes, for example, Patent Document 1 below. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] JP 2009-136557 A Summary of the Invention [Problem to be solved by the invention]

[0007] However, it has been pointed out that this type of bandage has problems when applied to fingers.For example, when applied to fingertips, if the sheet base material is wrapped around the tapered fingertip in a cylindrical shape, there is a risk that a gap will be created between the affected part of the fingertip and the sheet base material, making it difficult to cover the affected part, and if the sheet base material is wrapped around the affected part in a cone shape, there is a risk that the sheet base material will be easily removed.In addition, when applied to the joints of fingers, there is a concern that wrapping the sheet base material around the joints in a cylindrical shape will cause stiffness and discomfort.

[0008] The present invention has been made in consideration of the above-mentioned circumstances, and has an object to provide a bandage that can be easily applied to fingers without any problems. [Means for solving the problem]

[0009] The present invention comprises a sheet base having an adhesive surface on the back side of the sheet base, and a release paper releasably covering the adhesive surface of the sheet base, and leaving an unprocessed area in the longitudinal center of the sheet base, and processing areas on both longitudinal sides of the unprocessed area, and processing discontinuous cuts extending from both longitudinal ends of the sheet base to the unprocessed area together with the release paper, so that the processed area of ​​the sheet base can be torn together with the release paper via the cuts and used. A bandage, characterized in that the release paper is divided into three parts: a first release paper piece covering the center of the sheet base material in the longitudinal direction, a second release paper piece covering one side of the sheet base material in the longitudinal direction, and a third release paper piece covering the other side of the sheet base material in the longitudinal direction, and cuts are formed along at least the entire length of the second release paper piece and the third release paper piece. It is something.

[0010] In this way, both longitudinal sides of the sheet base material can be torn along the slits together with the release paper for use. For example, when applying to a fingertip, the release paper can be removed and the adhesive side of the longitudinal center of the sheet base material is placed against the affected area on the fingertip, and each of the torn parts of the sheet base material is wrapped around the opposite side of the affected area while crossing each other, allowing the sheet base to be wrapped around the tapered fingertip without any gaps and ensuring a secure fit that covers the affected area well while being difficult to come off.

[0011] Furthermore, when applied to finger joints, the adhesive side of the longitudinal center of the sheet base material after removing the release paper is placed over the affected area at the joint of the finger, and each torn part of the sheet base material is rolled around the opposite side to the affected area while applying it so as to avoid the joint. This allows the sheet base material to be wrapped around the joint of the finger so as not to restrict the joint as much as possible, and while still covering the affected area well, it is possible to achieve a fit that is less stiff than before and less uncomfortable.

[0013] Furthermore, in the present invention, the release paper is divided into three parts, a first release paper piece covering the center of the sheet substrate in the longitudinal direction, a second release paper piece covering one side of the sheet substrate in the longitudinal direction, and a third release paper piece covering the other side of the sheet substrate in the longitudinal direction, and cuts are made along at least the entire length of the second release paper piece and the third release paper piece. After tearing both longitudinal sides of the sheet base material along the slits, together with the second and third release papers, the first release paper is first peeled off and the adhesive side of the longitudinal center of the sheet base material is placed against the affected area, and then the second or third release paper can be peeled off and applied individually to each torn part of the sheet base material. This makes it possible to leave the second or third release paper behind in the torn parts of the sheet base material that have not yet been applied, in a stiff state where the adhesive surface is not exposed.

[0014] As a result, problems such as each torn part of the sheet base material sticking to an unintended position, the adhesive surfaces of each torn part sticking together, or twisting or wrinkling can be avoided, making it extremely easy to apply the sheet to fingertips or finger joints as described above.

[0015] Although the above describes application to the fingers, which is particularly suitable, when applying to other areas which are relatively easy to apply, it is possible to use it in the same manner as a conventional bandage without tearing both longitudinal sides of the sheet base material.

[0016] Furthermore, in a configuration in which the release paper is divided into three pieces, a first release paper piece, a second release paper piece and a third release paper piece, as described above, it is preferable that the opposing ends of both the second release paper piece and the third release paper piece have gripping portions that are folded back to opposite sides, and that the first release paper piece extends to a position that covers each of the gripping portions.

[0017] In this manner, both end portions of the first release paper piece that overlap with the gripping portions of the second and third release paper pieces become non-adherent portions that are not adhered to the adhesive surface of the sheet base material and are maintained in a slightly floating state, making it possible to easily peel off the first release paper piece by gripping these portions, and it also becomes possible to easily peel off the second and third release paper pieces by gripping their respective gripping portions.

[0018] Furthermore, in the present invention, a pad for application to the affected area may be attached to the adhesive surface in the unprocessed area of ​​the sheet substrate, and the provision of such a pad makes it possible to provide suitable protection for affected areas where the skin at the wound surface has severely broken down and exudates. Effect of the Invention

[0019] The adhesive bandage of the present invention described above can provide a variety of excellent effects as described below.

[0020] (I) According to the invention described in claim 1 of the present invention, both longitudinal sides of the sheet base material can be torn along the slits together with the release paper and used. Therefore, when applied to the fingertips, the sheet base material can be wrapped around the affected area along the tapered fingertip without any gaps, achieving a secure fit that is difficult to come off while adequately covering the affected area. Also, when applied to the joints of the fingers, the sheet base material can be wrapped around the joints of the fingers so as not to restrict the joints as much as possible, achieving a fit that is less stiff than before and less uncomfortable while adequately covering the affected area. This means that the sheet base can be applied satisfactorily without any problems even to fingers, which previously had problems.

[0021] (II) Claims of the present invention 1According to the invention described above, for each of the torn portions of the sheet base material that is not yet in the position to be attached, the second release paper piece or the third release paper piece can be left behind to maintain the adhesive surface in a stiff state without being exposed, thereby preventing problems such as the torn portions of the sheet base material sticking to unintended positions, the adhesive surfaces of the torn portions sticking together, or twisting or wrinkling, and making it extremely easy to attach the sheet to the fingertips or finger joints.

[0022] (III) Claims of the present invention 2 According to the invention described in the above, the first release paper piece can be easily peeled off by pinching both end portions of the first release paper piece that overlap with the gripping portions of the second release paper piece and the third release paper piece, and the second release paper piece and the third release paper piece can also be easily peeled off by pinching their respective gripping portions.

[0023] (IV) Claims of the present invention 3 According to the invention described in the above, it is possible to provide suitable protection for affected areas where the skin on the wound surface has been severely broken down and exudates are being discharged. [Brief description of the drawings]

[0024] [Figure 1] FIG. 1 is a plan view showing an example of an embodiment of the present invention. [Diagram 2] FIG. 2 is a bottom view of the bandage of FIG. 1. [Diagram 3] 3 is a view taken along the line III-III in FIG. 2. [Figure 4] 4 is a view taken along the line IV-IV in FIG. 3. [Diagram 5] 3 is an exploded view of the sheet substrate and release paper in the bottom view of FIG. 2. [Figure 6] 6 is a perspective view of the sheet substrate and release paper of FIG. 5, viewed obliquely from below. [Figure 7] FIG. 2 is an explanatory diagram showing how both longitudinal side portions of a sheet substrate are split into two. [Figure 8] FIG. 11 is an explanatory diagram showing how the sheet base material is applied to an affected area on a fingertip. [Figure 9] FIG. 11 is an explanatory diagram showing how the sheet base material is applied to a fingertip. [Figure 10] FIG. 11 is an explanatory diagram showing a state in which the sheet base material has been completely applied to a fingertip. [Figure 11] FIG. 11 is an explanatory diagram showing how the sheet base material is applied to an affected part of a joint of a finger. [Figure 12] FIG. 11 is an explanatory diagram showing how the sheet base material is applied to the joints of fingers while being torn. [Figure 13] FIG. 11 is an explanatory diagram showing a state in which the sheet base material has been completely applied to the joints of the fingers. [Figure 14] FIG. 11 is a plan view showing another embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0025] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0026] Figures 1 to 13 show an example of a form for implementing the present invention. As shown in Figures 1 to 6, the adhesive bandage 1 in this embodiment comprises a sheet base material 2 having an adhesive surface 2a (see Figures 5 and 6) on the back side relative to the front side, and a release paper 3 releasably covering the adhesive surface 2a of the sheet base material 2. This release paper 3 is divided into three parts: a first release paper piece 4 covering the longitudinal centre of the sheet base material 2, a second release paper piece 5 covering one longitudinal side of the sheet base material 2, and a third release paper piece 6 covering the other longitudinal side of the sheet base material 2 (see Figures 5 and 6 in particular). The opposing ends of both the second release paper piece 5 and the third release paper piece 6 are formed with gripping portions 7, 8 which are folded back to opposite sides, and the first release paper piece 4 extends to a position covering each of the gripping portions 7, 8.

[0027] An unprocessed area A is left in the longitudinal center of the sheet base material 2, and the longitudinal both sides on either side of the unprocessed area A are defined as processed areas B, with intermittent slits 9 extending from both longitudinal ends of the sheet base material 2 to the unprocessed area A processed together with the release paper 3 (see particularly Figures 1 and 2).In the example shown here, the slits 9 are processed to a position slightly longer than the overall length of the second release paper piece 5 and the third release paper piece 6, so that the processed area B in the sheet base material 2 can be torn into two parts via the slit 9 together with the release paper 3 (mainly the second release paper piece 5 and the third release paper piece 6) and used.

[0028] The sheet base material 2 may be any one of woven fabric, knitted fabric, nonwoven fabric, film, or foam, and the adhesive used on the adhesive surface 2a of the sheet base material 2 may be any one of rubber-based, acrylic-based, silicone-based, and urethane-based adhesives, and any of the materials generally used in existing bandages may be used as appropriate.

[0029] In this way, as shown in FIG. 7, both longitudinal sides of the sheet base material 2 can be torn into two at the slits 9 together with the release paper 3 for use. For example, when applying to a fingertip, as shown in FIG. 8, the adhesive surface 2a side of the longitudinal center of the sheet base material 2 from which the first release paper piece 4 has been peeled off is placed against the affected area on the fingertip, and then, as shown in FIG. 9, each of the longitudinal side portions of the torn into two of the sheet base material 2 is wrapped around the opposite side of the affected area and crossed over each other while being applied. As shown in FIG. 10, the sheet base material 2 can be wrapped around the tapered fingertip without any gaps and the affected area can be well covered while still being securely attached so that it is unlikely to come off.

[0030] When applied to the joints of the fingers, as shown in FIG. 11, the adhesive surface 2a side of the longitudinal center of the sheet base material 2 from which the first release paper piece 4 has been peeled off is placed over the affected area at the joint of the finger, and then, as shown in FIG. 12, each of the longitudinal side portions of the bifurcated sheet base material 2 is wrapped around the opposite side of the affected area from the affected area while being spaced apart to avoid the joint. As shown in FIG. 13, the sheet base material 2 is wrapped around the joint of the finger so as not to restrict the joint as much as possible, and it is possible to achieve a fit that is less stiff than before while covering the affected area well and feels less uncomfortable.

[0031] Furthermore, when applying the adhesive bandage 1 of this embodiment to the fingertips or finger joints, since the release paper 3 is divided into three parts, the first release paper piece 4, the second release paper piece 5 and the third release paper piece 6, the longitudinal both sides of the sheet base material 2 are torn into two parts along the cut 9, including the second release paper piece 5 and the third release paper piece 6, and then the first release paper piece 4 is peeled off and the adhesive surface 2a side of the longitudinal center of the sheet base material 2 is placed on the affected area, and then the second release paper piece 5 or the third release paper piece 6 of each of the torn parts can be peeled off individually and applied. This makes it possible to maintain the respective torn parts of the sheet base material 2 in a stiff state in which the adhesive surface 2a is not exposed, leaving the second release paper piece 5 or the third release paper piece 6 for the parts that have not yet been applied.

[0032] As a result, problems such as each of the bifurcated parts of the sheet base material 2 sticking to an unintended position, the adhesive surfaces 2a of each of the bifurcated parts sticking together, or twisting or wrinkling can be avoided, making it extremely easy to apply the sheet to fingertips or finger joints as described above.

[0033] Furthermore, in this embodiment in particular, both end portions of the first release paper piece 4 that overlap with the gripping portions 7, 8 of the second release paper piece 5 and the third release paper piece 6 are non-adhered portions that are not adhered to the adhesive surface 2a of the sheet base material 2 and are held in a slightly floating state, so that the first release paper piece 4 can be easily peeled off by pinching these portions, and the second release paper piece 5 and the third release paper piece 6 can also be easily peeled off by pinching their respective gripping portions 7, 8.

[0034] Furthermore, when application to fingers as described above is envisaged, it is preferable that, for example, the length of the sheet base material 2 is 35 mm to 75 mm, the width of the sheet base material 2 is 12 mm to 30 mm, the length of the slits 9 is 11 mm to 24 mm, and the spacing between the slits 9 is 0.5 mm to 1.5 mm; by producing the bandage within these numerical ranges, a bandage 1 suitable for application to fingers can be obtained.

[0035] However, while the above has been described as being particularly suitable for application to fingers, when applying to other areas which are relatively easy to apply, it is also possible to use it in the same manner as a conventional bandage 1 without splitting both longitudinal sides of the sheet base material 2 (processing area B) into two.

[0036] Therefore, according to the above embodiment, both longitudinal sides of the sheet base material 2 can be torn into two pieces along the slits 9 together with the release paper 3 for use. Therefore, when applied to the fingertips, the sheet base material 2 can be wrapped around the affected area closely along the tapered fingertip, ensuring a secure fit that is difficult to come off while still covering the affected area. Also, when applied to the joints of the fingers, the sheet base material 2 can be wrapped around the joints of the fingers so as not to restrict the joints as much as possible, ensuring a fit that is less stiff than before while still covering the affected area and feeling less uncomfortable. This means that the sheet base material can be applied well without any problems even to fingers, which previously had problems.

[0037] Furthermore, for each of the bifurcated portions of the sheet base material 2 that has not yet been applied, the second release paper piece 5 or the third release paper piece 6 can be left in place to maintain the adhesive surface 2a in a stiff state without being exposed. This makes it possible to prevent problems such as the bifurcated portions of the sheet base material 2 sticking to unintended positions, the adhesive surfaces 2a of the bifurcated portions sticking together, or twisting or wrinkling, and makes it extremely easy to apply the sheet to the fingertips or finger joints.

[0038] Furthermore, the opposing ends of the second release paper piece 5 and the third release paper piece 6 are formed with gripping portions 7, 8 that are folded back to opposite sides, and the first release paper piece 4 is extended to a position that covers the gripping portions 7, 8. Therefore, the first release paper piece 4 can be easily peeled off by pinching both end portions of the first release paper piece 4 that overlap the gripping portions 7, 8 of the second release paper piece 5 and the third release paper piece 6, and the second release paper piece 5 and the third release paper piece 6 can also be easily peeled off by pinching their respective gripping portions 7, 8.

[0039] FIG. 14 shows another embodiment of the present invention, in which, as shown in the figure, a pad 10 to be applied to the affected area may be attached to the adhesive surface 2a in the unprocessed area A of the sheet base material 2. By adopting such a configuration, it is possible to provide suitable protection for affected areas where the skin at the wound surface has severely broken down and exudates.

[0040] It should be further noted that the pad 10 may be constructed of an absorbent layer made of polyester, rayon, polyolefin, etc., and a net made of polyester, polyolefin, etc., and materials generally used in existing adhesive bandage pads may be used as appropriate.

[0041] Furthermore, the adhesive bandage of the present invention is not limited to the above-mentioned examples, and in addition to processing one cut on each side of the longitudinal direction of the sheet base material, it is also possible to process multiple cuts in each direction, the division form of the release paper is not necessarily limited to the example shown in the figure, the application is not limited to fingers, and various other modifications can be made without departing from the gist of the present invention. [Explanation of symbols]

[0042] 1 Bandage 2. Sheet substrate 2a Adhesive side 3 Release paper 4 First release paper 5 Second release paper 6 Third release paper 7 Knob 8 Knob 9. Break 10 Pads A Raw area B Machining area

Claims

1. A bandage comprising a sheet base having an adhesive surface on the back side of the sheet base and a release paper releasably covering the adhesive surface of the sheet base, wherein an unprocessed area is left in the longitudinal center of the sheet base, and both longitudinal sides of the sheet base sandwiching the unprocessed area are processed into discontinuous slits extending from both longitudinal ends of the sheet base to the unprocessed area, the release paper being processed together with the sheet base, so that the processed area of ​​the sheet base can be torn together with the release paper via the slits for use; The release paper is divided into three parts: a first release paper piece covering the longitudinal center of the sheet base material, a second release paper piece covering one longitudinal side of the sheet base material, and a third release paper piece covering the other longitudinal side of the sheet base material, and cuts are made along at least the entire length of the second release paper piece and the third release paper piece.

2. A bandage as described in claim 1, characterized in that the opposing ends of both the second release paper piece and the third release paper piece have tabs that fold back to opposite sides, and the first release paper piece extends to a position that covers each of the tabs.

3. 3. The adhesive bandage according to claim 1 or 2, wherein a pad to be applied to the affected area is attached to the adhesive surface in the unprocessed area of ​​the sheet substrate.

Citation Information

Patent Citations

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