JP2001145656A - Strap - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a strap which can deal easily with the abrupt movement of the joint, or the like, is hardly peelable and can prevent the infiltration of water, or the like, from outside. SOLUTION: This first-aid strap consists of a base material, an adhesive layer applied to approximately the entire part of the one surface of the base material and a pad arranged in the central part of this adhesive layer. The base material has an approximately elliptic shape of 2.5 to 5 in the ratio (L/S) of the length L in a major axis direction to the length S in a minor axis direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an emergency bandage, and more particularly, to applying a pressure-sensitive adhesive to one surface of a base sheet thereof.
A pad member is adhered to a central portion thereof, and the base material has a substantially elliptical shape having a ratio (L / S) of the major axis L to the minor axis S of 2.5 to 5, and has a major axis and a major axis. A first-aid bandage that is symmetric about each of the short axes and is suitable for application to an elongated wound surface, such as cuts, abrasions, etc. of joints of limbs such as knees, elbows, shoulders, wrists, ankles, and finger joints. .

[0002]

BACKGROUND OF THE INVENTION First-aid bandages have become widespread as a means of emergency treatment for unexpected wounds at work or at home. Emergency adhesive plasters of various sizes and shapes are also manufactured and actually used so as to be able to meet various requirements such as the size, shape and wound site of the wound. Many of these first-aid emergency plasters are made by applying an adhesive to the entire surface of one side of a flat base sheet, attaching a pad member to the center thereof, and comprising the adhesive and the pad member. On the surface,
It is sold with a peelable release sheet attached and sealed in a package. Such packaged plasters are hygienic, are mass-produced due to their high demand, are supplied relatively inexpensively, and are widely used. These commercially available bandages generally adopt a rectangular shape or a shape in which the four corners of the rectangle are rounded, from the viewpoint of ease of production, simplification of the process, and the like.

[0003] However, in the case of an emergency bandage adopting such a rectangular basic shape, a pad portion which is actually brought into contact with the wound portion and an adhesive layer surface around the pad portion which prevents the pad portion from peeling off from the wound portion. There was a problem that the shape of the adhesive was poorly balanced and the adhesive was too long in the length direction of the bandage and too short in the width direction. Because of this, knees, elbows,
When attached to joints of the limbs such as the shoulders, wrists and ankles, and joints of the fingers such as the joints of the fingers, the joints cannot cope with large movements of the joint, and the adhesive surface in the width direction of the pad There was a problem that it could be peeled off or partly lifted to allow intrusion of water or the like from the outside. On the other hand, since the skin is unnecessarily long in the length direction, the skin is unnecessarily covered with the adhesive surface, so that the skin may be swelled or irritated.

[0004] As a countermeasure, plasters of various shapes have been proposed so far. For example, Utility Model Publication 1980
Nos. 12980 and 63-195831 disclose a bandage in which an overhang is provided on the surface of the pressure-sensitive adhesive layer in the width direction of the pad. Further, Utility Model Publication No. 56-127723 discloses a bandage in which at least one of corners forming one long side of a rectangle is cut out. However, even in these prior arts, since the basic shape of the rectangle does not change, the above problem has not been completely solved.

[0005]

SUMMARY OF THE INVENTION The present invention relates to an emergency bandage comprising a base material, an adhesive layer applied to substantially one entire surface of the base material, and a pad disposed at the center of the adhesive layer. The present invention relates to an emergency plaster characterized in that the base material has an elliptical shape having a ratio (L / S) of the major axis L to the minor axis S of 2.5 to 5. Further, regarding the first-aid bandage, the first-aid bandage has a shape in which a parallelogram having a line passing through the center of the ellipse and connecting the circumference of the ellipse is inserted. The present invention relates to the first-aid bandage having a shape extended in parallel with the axial direction, and further relates to the first-aid bandage having a shape in which a part of the short-axis direction end is extended in parallel with the short-axis direction. By adopting such a shape, the adhesive layer surface can be appropriately arranged around the pad, the adhesive layer surface beside the pad is hardly peeled off from the skin, and the adhesive bandage does not needlessly cover the skin with the adhesive layer. Can be manufactured.

The ratio L / W of the length W in the width direction to the length L in the width direction of the base sheet of the present invention is 2.5 to 5. If the ratio is less than 2.5, the wound tends to be unnecessarily long in the width direction with respect to an elongated wound, and the adhesion of the pad to the wound tends to be impaired, which is not preferable. If it is 5 or more, the width of the pad becomes too narrow, and the adhesive layer covers the wound surface with a slight shift when applied to the wound, resulting in poor operability.
In addition, the surface of the pressure-sensitive adhesive layer in the width direction of the pad is easily peeled off due to a large joint movement, which is not preferable.

Further, a parallelogram having one side as a line connecting the circumference of the ellipse passing through the center of the ellipse is inserted into the oval shape of the bandage, and the ellipse and the line are inserted therein. Two minutes
The shape may have another two sides of the parallelogram on each tangent of the ellipse at one intersection. In addition, a second parallelogram passing through the center of the parallelogram and having a second line segment connecting the circumference of the ellipse as one side is inserted into the shape, and the ellipse and the second parallelogram are inserted here. It is also possible to adopt a shape in which the other two sides of the second parallelogram are located on the respective tangents of the ellipse at the two intersections of the two line segments. These shapes are particularly suitable for a substrate for a pad suitable for a planar wound having a relatively small ratio of length to width, such as a circle or a square.

Further, a part of the end portion in the major axis direction may be formed to extend in parallel with the major axis direction. This shape is particularly suitable for an adhesive bandage for an elongated pad for a linear wound made of a blade, a piece of glass, or the like, and further when it is desired to prevent peeling of the adhesive layer surface in the lateral direction of the pad. Further, a part of the short-axis direction end may be extended in parallel with the short-axis direction.

The bandage of the present invention mainly comprises a base sheet, an adhesive layer, a pad and a release sheet. The bandage of the present invention can be further wrapped one by one with a wrapping material to form an individual package. The base sheet of the first-aid bandage in the present invention is not particularly limited as long as it has appropriate flexibility and strength. Examples of the material of the base sheet include woven fabrics made of cotton, soup, hemp, synthetic fiber, etc., plastic films such as soft polyvinyl chloride, polyethylene, and polyurethane, non-woven fabrics such as rayon, polyester, and nylon, and Japanese paper. Mention may be made, preferably of a flexible thin film generally used for the backing layer of wound dressings. A film that can be used for a particularly preferred substrate sheet is a moisture-permeable elastic film,
For example, a thin film of polyether polyurethane, polyester polyurethane, hydrophilic polyurethane, soft polyethylene, polypropylene, polyester, polyester polyether and the like can be mentioned. Further, these multilayer film sheets can be used.

Since the pressure-sensitive adhesive in the present invention is applied directly to the skin, it must be one with little skin irritation. Generally, rubbers such as natural rubber, acrylics, polyisobutylenes, silicones, etc.
The pressure-sensitive adhesive used for the bandage can be used. The pad in the present invention covers the wound, and absorbs bodily fluids, blood, etc. leached from the wound,
Examples of the pad material include gauze and other materials having water absorbency. Further, a superabsorbent polymer such as polyacrylic acid may be contained.

The release sheet according to the present invention must be capable of adhering the above-mentioned pressure-sensitive adhesive to an appropriate degree and capable of being easily released when used. As such a release sheet, a plastic film such as polyethylene, polypropylene, or polyvinyl chloride, a paper sheet coated with a release material such as a silicone resin or a fluororesin, or the like can be used. In particular, a paper sheet coated with a releasable material such as a silicone resin or a fluororesin has a strong stiffness, and is suitable in terms of good releasability and easy handling. When individually wrapped with the wrapping sheet, paper, plastic, a composite material thereof, or the like can be used as the wrapping sheet.

The shape of the pad is preferably changed according to the shape of the wound to which the bandage is applied.
A shape such as a rectangle, a rectangle with rounded four corners, a shape with one end or both ends tapered, and an ellipse can be appropriately used. The width of the pad is 0.2 to 0.6 times the average width of the base sheet portion to which the pad is attached. If it is less than 0.2 times, the pad becomes too thin, and the pressure-sensitive adhesive layer covers the wound surface with a slight shift when applied to the wound, which is not preferable. Also, if it exceeds 0.6 times, the width of the adhesive layer on both sides of the pad becomes insufficient, and the joint is largely bent,
When bending is repeated, the bandage may come off. The thickness of the pad is not particularly limited, but is usually 0.5 mm
From 1 mm.

There is no particular limitation on the method for producing the adhesive bandage of the present invention. For example, an adhesive is applied to a release paper having a weaker adhesive force than the base material to the adhesive to be used to form an adhesive layer, The base material is adhered to the adhesive layer, and then the whole is turned upside down, the release paper is peeled off, the release sheet is set on the adhesive layer instead, and the whole is punched out with a bandage-shaped mold. Inventive bandages can be manufactured.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a front view, a left and right side view, a plan view, a rear view, a sectional view taken along the line AA, etc. for explaining a bandage of a first embodiment of the present invention according to claim 1 of the present application. is there. The base material sheet uses polyurethane, the pressure-sensitive adhesive of the pressure-sensitive adhesive layer uses acrylic, and the pad uses gauze. The bandage of this embodiment has a length of about 6c in the long axis direction.
m, an elliptical shape with a width of about 2 cm in the minor axis direction. The pad has a length of about 2.2 cm and a width of 1.1 cm. This bandage is suitable for a wound such as a finger joint of a limb or a small wound of another large joint. If the bandage is increased to 1.5 to 2 times as large, it can cope with a large wound.

FIG. 2 is a front view, a left and right side view, a plan view, a rear view and the like for explaining a bandage according to a second embodiment of the present invention according to claims 2 and 4 of the present invention. The bandage of this example has an elliptical shape having a major axis of about 3 cm and a minor axis of about 1.5 cm, and a rectangular shape having a width of 1.5 cm equal to the minor axis and a length of 2 cm inserted into the minor axis. Has adopted. A portion surrounded by a dotted line and a solid straight line in the rear view represents the rectangle. The length of the pad is a rectangle having a length of about 2.2 cm and a width of 0.7 cm. This bandage is particularly suitable for long and narrow wounds such as joints outside the toes of the limbs.
If the size is increased to 5 to 2 times, it is possible to cope with a large scratch.

FIG. 3 is a front view, a left and right side view, a plan view, a rear view, a sectional view taken along line AA, etc. for explaining a plaster of a third embodiment of the present invention according to claims 2 and 3 of the present invention. . The bandage of the present example has an elliptical shape having a major axis of about 6 cm and a minor axis of about 1 cm.
It adopts a shape in which a rectangle with a length of cm is inserted. A portion surrounded by a solid straight line in the rear view represents the rectangle. The length of the pad is a rectangle having a length of about 2.3 cm and a width of 0.7 cm. This bandage is suitable for a wound such as a finger joint of a limb or a small wound of another large joint. If the bandage is increased to 1.5 to 2 times as large, it can cope with a large wound.

FIG. 4 is a front view, left and right side views, a plan view, a rear view, a sectional view taken along line AA, etc. for explaining a plaster according to a fourth embodiment of the present invention according to claim 8 of the present invention. is there. The bandage of the present example has an elliptical shape having a major axis of about 4 cm and a minor axis of about 2 cm, each of which is about 0.4 to about 1 cm from both ends of the major axis.
Are smoothly extended from each other by 0.5 cm. The length of the pad is a rectangle having a length of about 2.3 cm and a width of 0.7 cm. This bandage is suitable for a wound such as a finger joint of a limb or a small wound of another large joint. If the bandage is increased to 1.5 to 2 times as large, it can cope with a large wound.

[0018]

The adhesive bandage of the present invention can easily cope with a large sudden movement of a joint or the like by omitting an unnecessary adhesive layer surface for supporting a pad as compared with a conventional adhesive bandage. To prevent peeling and prevent intrusion of water or the like from the outside.

[Brief description of the drawings]

FIG. 1 illustrates a first embodiment of a bandage of the present invention.

FIG. 2 illustrates a second embodiment of the bandage of the present invention.

FIG. 3 illustrates a third embodiment of the bandage of the present invention.

FIG. 4 illustrates a fourth embodiment of the bandage of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Base sheet, 2 ... Adhesive layer, 3 ... Pad, 4 ...
Release sheet

Claims (9)

[Claims] A first-aid bandage comprising a base material, an adhesive layer applied to substantially the entire surface of one side of the base material, and a pad disposed at the center of the adhesive layer, wherein the base material is The ratio (L / S) of the length L in the long axis direction to the length S in the short axis direction is 2.5 to
An emergency bandage characterized by having an oval shape of 5. 2. A rescue bandage comprising a base material, an adhesive layer applied to substantially the entirety of one surface of the base material, and a pad disposed at the center of the adhesive layer, wherein the base material is The ratio (L / S) of the length L in the long axis direction to the length S in the short axis direction is 2.5 to
5. Insert a parallelogram having a line segment passing through the center of the ellipse and having a line segment passing through the center of the ellipse into the elliptical shape of No. 5, where the ellipse and the ellipse at two intersections of the line segment are inserted. Characterized in that there are other two sides of the parallelogram on each tangent line of the first aid. 3. The bandage of claim 2, wherein the first line segment is on the major axis of the ellipse. 4. The bandage of claim 2, wherein the line segment is on the short axis of the ellipse. 5. An emergency bandage comprising a substrate, an adhesive layer applied to substantially the entire surface of one side of the substrate, and a pad disposed at the center of the adhesive layer, wherein the substrate is The ratio (L / S) of the length L in the long axis direction to the length S in the short axis direction is 2.5 to
In the elliptical shape of No. 5, a first parallelogram having one side defined by the first line segment passing through the center of the ellipse and separated by the ellipse is inserted, and the ellipse and the line segment are inserted therein. On each tangent line of the ellipse at the two intersections, a shape having another two sides of the parallelogram is provided, and a second line segment passing through the center of the parallelogram and connecting the circumference of the ellipse is formed. A second parallelogram is inserted into one side, and the other two parallelograms are inserted on each tangent of the ellipse at two intersections of the ellipse and the second line segment.
Emergency bandage characterized by having sides. 6. The bandage of claim 3, wherein the first line segment is on the major axis of the ellipse. 7. The bandage of claim 3, wherein the line segment is on the short axis of the ellipse. 8. The apparatus according to claim 1, wherein a part of the longitudinal end is extended in parallel with the longitudinal direction.
The emergency bandage according to any one of the above. 9. The device according to claim 1, wherein a part of the short-axis direction end is extended in parallel with the short-axis direction.
The emergency bandage according to any one of the above.