JP3609105B2 - Adhesive film dressing - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a medical or surgical adhesive film dressing. Specifically, the present invention relates to a thin and transparent adhesive film dressing used for fixing a wound dressing material and a venous catheter (IV catheter).
[0002]
[Prior art / problems to be solved by the invention]
Thin and transparent adhesive film dressings are widely used in medical and surgical treatments and are offered to physicians in various sizes and shapes.
An adhesive film dressing of about 10 cm square is useful for IV catheter fixation, and an adhesive film dressing larger than the above dimensions is also used as a surgical incision drape. When used for IV catheter fixation, it is necessary to observe the catheter insertion portion, and therefore transparency of the adhesive film dressing is required. In addition, the adhesive film dressing is effective in preventing invasion of bacteria and preventing infection. Further, an adhesive film dressing that is excellent in water vapor permeability is useful so as not to disturb the respiration of the covered skin and to suppress the whitening phenomenon of the skin.
[0003]
Various methods for handling an adhesive film dressing are provided as prior art. For example, Japanese Patent Application Laid-Open No. 57-115480, Japanese Utility Model Publication No. 62-42814, Japanese Utility Model Application Publication No. 62-42816, etc. are attached to these adhesive film dressings. The release liner is peeled off and the peripheral edge of the adhesive film dressing is held. In this case, because the finger touches the adhesive surface of the adhesive film dressing, the adhesive surface is fouled by the finger, and this part is lifted after sticking, and bacteria on the operator's fingers adhere to the adhesive surface. There were problems such as not being hygienic. In addition, this adhesive film dressing has a problem that it is difficult to apply while holding and pulling the peripheral edge even when desired, due to the restriction of the peripheral edge (unfavorable when the finger touches the adhesive surface).
Furthermore, in order to prevent the adhesive surface from being soiled by fingers, there are some adhesive film dressings that are not provided with an adhesive, but in this case, the periphery does not adhere to the adherend surface (skin etc.) Therefore, after sticking, there is a problem that it is easy to peel off from this portion.
[0004]
Accordingly, it is an object of the present invention to provide an adhesive film dressing having improved handling characteristics and to provide an adhesive film dressing that can be applied to a patient without touching the adhesive surface of the adhesive film dressing.
[0005]
[Means for Solving the Problems]
The present invention has been made to solve the above-described problems. That is, the present invention relates to 1) a film that can adapt to the skin, 2) a pressure-sensitive adhesive layer provided on one surface of the film, and 3) opposite to the surface of the film having a pressure-sensitive adhesive layer. A peelable backing layer provided on the side surface, and 4) a release film dressing comprising a release liner provided on the pressure-sensitive adhesive layer of the film, wherein the central portion is peeled off to the release liner A perforation line is provided to form an exposed portion of the adhesive, and a perforation line is formed through the film, the pressure-sensitive adhesive layer, the peelable backing layer, and the release liner. This is an adhesive film dressing.
[0006]
The material constituting the film used in the present invention is not particularly limited as long as it can adapt to the skin, such as acrylic polymer, polyethylene, ethylene-vinyl acetate copolymer, polyurethane, polyether polyester, nylon derivative and the like. These polymers are used. Among these, polymers such as acrylic polymers, polyurethanes, polyether polyesters, and nylon derivatives are excellent in water vapor permeability when used as a film, and therefore hardly interfere with breathing of the covered skin, and The reason that the whitening phenomenon can be suppressed, and because it has transparency, it can be applied while looking at the place of application, and in the case of IV catheter fixation, the catheter insertion part can be observed. Is particularly preferred.
[0007]
The thickness of the film is preferably a thickness that can adapt to the skin, and is usually 20 to 150 μm, preferably 25 to 75 μm.
[0008]
Examples of the pressure-sensitive adhesive used in the present invention include various pressure-sensitive adhesives such as natural rubber-based, synthetic rubber-based, acrylic-based, and silicone-based pressure-sensitive adhesives. An acrylic pressure-sensitive adhesive is preferably used because of the transparency of the film and the irritation to the skin.
[0009]
As a means for providing such a pressure-sensitive adhesive layer on a film, for example, a method of applying an adhesive composition on a film, a method of providing a film made of a pre-formed adhesive composition on a film, etc. These are carried out by known means. The thickness of this pressure-sensitive adhesive layer is usually 10 to 60 μm, preferably about 20 to 50 μm.
[0010]
Examples of the release liner material provided on the pressure-sensitive adhesive layer include plastic films (for example, polyethylene, polypropylene, polyester, and laminated composites thereof), paper (for example, high-quality paper, kraft paper, etc.), Preferably, it is paper (for example, high-quality paper, kraft paper, etc.). Moreover, a release liner can be obtained by performing a silicone resin treatment or a fluororesin treatment on these surfaces.
The thickness of the release liner is usually 50 to 250 μm, preferably about 75 to 200 μm.
[0011]
Examples of the material for the peelable backing layer include plastic films (for example, polyethylene, polypropylene, polyester, and laminated composites thereof), paper (for example, high-quality paper, kraft paper, etc.), and preferably paper (for example, high-quality paper). Paper, craft paper, etc.). Further, a peelable backing layer can be obtained by subjecting these surfaces to resin treatment such as polyester and polyolefin.
The thickness of the peelable backing layer is usually 15 to 200 μm, preferably about 20 to 100 μm.
[0012]
Providing a peelable backing layer prevents the film from being damaged or damaged before using the adhesive film dressing, and the adhesive film dressing is often sterilized. This is to keep the film surface and the like in a sterile state for a long time.
[0013]
In the present invention, a film (polymer film) is first extruded onto a peelable backing layer or formed by other means. Then, a pressure-sensitive adhesive layer is provided on the release liner by a known method, and the pressure-sensitive adhesive layer side is adhered to the film provided on the above-described peelable backing layer. Next, a peripheral incision line is formed on the release liner to release the central portion thereof to form an adhesive exposed portion. Inside the incision line, a film, a pressure-sensitive adhesive layer, a peelable backing layer, and a release liner The adhesive film dressing of the present invention can be obtained by providing a perforation line that penetrates through.
[0014]
The score line for forming the pressure-sensitive adhesive exposed portion provided on the release liner is provided inside the pressure-sensitive adhesive film dressing in the shape of a frame parallel to the outer edge of the pressure-sensitive adhesive film dressing, or has irregularities. It is provided in the shape of a frame.
Further, the cut line is preferably a curve or a straight line.
[0015]
The perforation line formed through the film, the pressure sensitive adhesive layer, the peelable backing layer and the release liner provided inside the score line is a frame in which the score line is parallel to the outer edge of the adhesive film dressing. Even if it is a frame which has an unevenness | corrugation, it is provided in the shape of the frame parallel to the outer side of adhesive film dressing.
The perforation line is preferably a curve or a straight line.
[0016]
In the adhesive film dressing of the present invention, the area ratio between the inner part and the outer part formed by the perforation line is preferably 1: 1 to 1: 0.1. If the area ratio between the inner part and the outer part is outside the above range, that is, if the area of the non-pasting part is excessive, it is not only uneconomical but also tends to be an obstacle during the sticking operation. On the other hand, if the area of the non-adhered site is too small, it becomes difficult to hold the adhesive film dressing of the present invention, there is a possibility that the finger touches the applied site when holding the adhesive film dressing, It is unsanitary.
[0017]
Moreover, the adhesive film dressing of this invention WHEREIN: It is preferable that ratio of the penetration part of the said perforation line and a non-penetration part is 15: 1 to 1: 1. When the ratio of the perforated portion and the non-penetrating portion is outside the above range, that is, 15: 1 or more (excessive penetrating portion), the strength of the perforated portion of the adhesive film dressing becomes weak, When the release liner is peeled off, it may break from the perforation line. In addition, when the adhesive film dressing is applied to the skin after the adhesive film dressing is applied to the skin, the strength of the perforated line portion of the adhesive film dressing is strong when the adhesive film dressing is applied to the skin. , It is less likely to break better than the perforation line.
[0018]
Furthermore, in the adhesive film dressing of the present invention, it is preferable that at least one perforation line is provided from the perforation line (frame shape) to the edge portion of the adhesive film dressing. A film, a pressure sensitive adhesive layer, a peelable backing layer and a release liner are penetrated.
[0019]
In the pressure-sensitive adhesive film dressing of the present invention, it is preferable that the peelable backing layer is provided with a score line that divides the peelable backing layer into at least two parts. The cut line is preferably a curve or a straight line.
Moreover, the notch space which divides | segments the said backable backing layer at least into 2 may be provided in the peelable backing layer.
By these cut lines or cut spaces, the peelable backing layer can be more easily peeled off.
[0020]
The adhesive film dressing of the present invention may be individually packaged in a sterilization bag, or may be sterilized by radiation or the like.
[0021]
Next, the present invention will be described in more detail with reference to the drawings.
FIG. 1 is a plan view showing one embodiment of the pressure-sensitive adhesive film dressing of the present invention (a view seen from the release liner side), and FIG. 2 is a sectional view taken along the line AA ′. FIG. 3 is a plan view showing another embodiment of the adhesive film dressing of the present invention (a view seen from the release liner side), and FIG. 4 is a cross-sectional view taken along the line AA ′. FIG. 5 is a plan view (view seen from the release liner side) showing a third embodiment of the adhesive film dressing of the present invention, and FIG. 6 is a cross-sectional view taken along line AA ′.
[0022]
In the figure, 1 is a film that can adapt to the skin (preferably a transparent polymer film), 2 is a pressure-sensitive adhesive layer (preferably a transparent pressure-sensitive adhesive layer), 3 is a release liner, 4 is a release liner Possible backing layers, 5 is a score line provided in the release liner, and 6 is a perforation line penetrating the above 1, 2, 3, and 4 provided inside the score line 5. The adhesive film dressing is divided into a sticking site 61 and a non-sticking site 62 by the perforation line 6, and the non-sticking site 62 is cut off along the perforation line 6 later (that is, after sticking to the skin). Further, the non-stick site 62 may be provided with a perforation line 7 (through the above 1, 2, 3, and 4) for peeling the non-stick site. The peelable backing layer 4 may be provided with a cut line 8 and a cut space 9 that divide the back layer 4 into at least two parts.
[0023]
When sticking the adhesive film dressing of the present invention, the peelable backing layer 4 is first peeled off. Next, the release liner 3 in the inner part surrounded by the score line 5 is peeled to expose the adhesive surface. And the exposed adhesive surface is affixed on a to-be-adhered thing, for example, a skin surface, holding the non-sticking site | part 62. FIG. Finally, the non-sticking part 62 of the adhesive film dressing is cut off by the perforation line 6.
At this time, since the peelable backing layer 4 is peeled in advance, it can be stuck while confirming the part to be stuck. Moreover, since a part of the release liner is attached to the non-sticking part 62, it is easy to hold and the sticking operation can be performed without the fingers touching the adhesive surface directly. Further, since the entire pasting site 61 is an adhesive surface, it adheres firmly to the adherend surface (skin etc.) and does not peel off from the peripheral edge.
[0024]
【Example】
Hereinafter, examples will be given to describe the present invention in detail, but the present invention is not limited to these examples.
[0025]
Example 1
As shown in FIGS. 1 and 2, the adhesive film dressing according to the first embodiment of the present invention uses a polyether polyamide block polymer film having a thickness of 30 μm as the film 1 that can adapt to the skin. A pressure-sensitive adhesive layer 2 made of an acrylic pressure-sensitive adhesive is provided with a thickness of 30 μm, and a release liner 3 made of paper (quality paper) whose surface is treated with a silicone resin is provided on the pressure-sensitive pressure-sensitive adhesive layer 2. Further, it is made of a laminate in which a peelable backing layer 4 made of paper (high quality paper) having a polyolefin resin treatment is provided on a film 1 that can be adapted to the skin.
In the adhesive film dressing, a cut line 5 is provided on the release liner 3, and the film 1 that can adapt to the skin, the pressure-sensitive adhesive layer 2, the release liner 3, and a peelable backing layer inside the cut line 5. A perforation line 6 penetrating 4 is provided. By this perforation line 6, the adhesive film dressing is divided into a pasting part 61 and a non-sticking part 62. Further, the non-stick site 62 is provided with a perforation line 7 (through the above 1, 2, 3, and 4) for peeling the non-stick site. (Inner part of perforation line: area ratio of outer part = 1: 0.75)
[0026]
Example 2
3 and 4 is different from the embodiment shown in FIG. 3 except that the shape of the cut line 5 provided in the release liner 3 is different and the cut-out space 9 is provided in the peelable backing layer 4. The adhesive film dressing is the same as in Example 1. (Inner part of perforation line: area ratio of outer part = 1: 0.75)
[0027]
Example 3
In the embodiment shown in FIGS. 5 and 6, two perforation lines 7 for peeling the non-stick site are provided from the perforation line 6 toward two corners of the adhesive film dressing, and The adhesive film dressing is the same as that of Example 1, except that the score line 8 is provided on the peelable backing layer 4. (Inner part of perforation line: area ratio of outer part = 1: 0.7)
[0028]
【The invention's effect】
The adhesive film dressing of the present invention can be operated without directly touching the adhesive surface of the adhesive film dressing during a sticking operation, and can be operated with one hand. Furthermore, it has the effect that it is hard to peel off from a peripheral part.
[Brief description of the drawings]
FIG. 1 is a plan view (view from the release liner side) showing an embodiment of an adhesive film dressing according to the present invention.
FIG. 2 is a cross-sectional view taken along the line AA ′ in FIG.
FIG. 3 is a plan view (view from the release liner side) showing another embodiment of the adhesive film dressing of the present invention.
4 is a cross-sectional view taken along line AA ′ of FIG.
FIG. 5 is a plan view (viewed from the release liner side) showing a third embodiment of the adhesive film dressing of the present invention.
6 is a cross-sectional view taken along the line AA ′ of FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Film which can adapt to skin 2 Pressure-sensitive adhesive layer 3 Release liner 4 Peelable backing layer 5 Cut line 6 Perforation line 61 Attached part 62 Non-attached part 7 Perforated line 8 Cut line 9 Cut space

Claims (8)

1) a film that can adapt to the skin, 2) a pressure-sensitive adhesive layer provided on one surface of the film, and 3) provided on a surface opposite to the surface having the pressure-sensitive adhesive layer of the film. A peelable backing layer, and 4) an adhesive film dressing comprising a release liner provided on the pressure-sensitive adhesive layer of the film, wherein the central portion of the release liner is peeled to remove the adhesive exposed portion. is around incision lines for forming the provided, the inside of the cut line, a film, a pressure-sensitive adhesive layer, adhesive film dressings which peelable backing layer and perforation lines made through the release liner is provided . The area ratio of the inner part to the outer part formed by a perforation line provided through the film, the pressure-sensitive adhesive layer, the peelable backing layer and the release liner is 1: 1 to 1: 0.1. The adhesive film dressing according to claim 1. The ratio of the penetration part and the non-penetration part in the perforation line provided through the film, the pressure-sensitive adhesive layer, the peelable backing layer and the release liner is 15: 1 to 1: 1. Adhesive film dressing. The film, pressure sensitive adhesive layer, peelable backing layer and release liner penetrate through the film, pressure sensitive adhesive layer, peelable backing layer and release liner from the perforation line to the edge. The adhesive film dressing according to claim 1, wherein at least one perforation line is provided. The pressure-sensitive adhesive film dressing according to claim 1, wherein the score line provided on the release liner is a curve or a straight line. The pressure-sensitive adhesive film dressing according to claim 1, further comprising a score line dividing the peelable backing layer into at least two parts. The adhesive film dressing according to claim 1, wherein the adhesive film dressing is individually packaged in a sterile bag. The adhesive film dressing according to claim 7, which is sterilized.

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