JP2000254164A - Medical rolled adhesive plaster and its housing container as well as its use method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an adhesive plaster which has excellent versatility and can be freely cut to a desired size on site by combining a pressure sensitive adhesive layer disposed on one surface of a base material, release paper affixed onto the same and a supporting body consisting of two plastic films repeelably affixed by thermal compression bonding to the other surface of the base material. SOLUTION: The base material 1 is formed of the plastic film or foil and more particularly preferably a thermoplastic resin of 10 μm to 120 μm in thickness is used. An adhesive having decreased rashes and stimuli as medical use is properly selected for the pressure sensitive adhesive layer 2 to be disposed on one surface of the base material 1. The release paper 3 affixed onto the pressure sensitive adhesive layer 2 is preferably provided with a slit part 3b in a position of 1/4 to 4/5 of the entire width from one end along a longitudinal direction. The intermediate part in the transverse direction on the other surface (rear surface) of the base material 1 is butted in a longitudinal direction and the surface of the base material 1 exclusive of this butt part 6 is provided with the supporting body 5 consisting of the two plastic films repeelably affixed by thermal compression bonding.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for applying a medical device such as a catheter or the like to a human body or an animal body for protecting the wound surface such as burns, cuts, and inflamed areas. The present invention relates to a roll-shaped medical bandage used for fixing, a storage container for the bandage, and a method of using the bandage.

[0002]

2. Description of the Related Art Conventionally, in order to protect wound surfaces such as burns, cuts, and inflamed parts of the body, or to fix medical instruments such as catheters to the skin, they have adhesiveness and are resistant to oxygen and water vapor. On the other hand, a gas-permeable bandage having a high permeability or a water-vapor-impermeable bandage that prevents the release of water vapor from the skin has been widely used. These plasters must completely follow the shape of the body parts,
In addition, since it is directly adhered to the skin, an extremely thin film or foil is required. However,
Due to the thinness of such a thin film or foil-shaped plaster, it was very difficult to apply the plaster as the surface area of the affected area to be stuck was increased. For example, when these adhesive plasters are applied to an affected area having a large surface area, they often wrinkle or curl, and the adhesives stick together.

In order to solve such problems of the prior art, for example, US Pat. No. 4,372,303, US Pat. No. 4,374,520, European Patent No. 51935, US Pat. No. 4,619,253 (JP-B-60-168450).
No. 2), some thin film or foil bandages are proposed. However, all of these plasters are for fixed-size products (cut products) or for fixed-size products, and have been improved. There was a problem such as not becoming.

The present invention has been made in order to solve the problems of the prior art, and an object of the present invention is to be able to cope with a wound surface of any size with one kind of roll size. It can be cut to the desired size freely on site, and can prevent dirt and dust from adhering to the adhesive bandage during storage, and the release paper and the support can be easily peeled off from the base material and used. An object of the present invention is to provide a roll-shaped medical bandage which can be easily stuck to a wound surface without wrinkles and the like, a storage container for the bandage, and a method of using the bandage.

[0005]

Means for Solving the Problems The present invention provides the following (i)
A medical bandage having the configuration of (iv), wherein the bandage is wound around a roll core with a release paper inside: (i) a plastic film or (Ii) a pressure-sensitive adhesive layer provided on one surface of the base material; (iii) release paper adhered on the pressure-sensitive adhesive layer; (iv) the base material A support made of two plastic films abutted in the longitudinal direction at the middle of the other surface in the width direction and removably adhered to the base material by thermocompression bonding except for the abutted portion.

The present invention is also an openable and closable storage container for storing the roll-shaped medical bandage, wherein the container has a drawer opening through which the bandage can be fed out when the container is closed. It is a storage container.

The present invention also provides a method for using the above-mentioned roll-shaped medical plaster characterized by being used according to the following procedures (a) to (f): (B) Peel one release paper from the inside to the outside,
The part of the pressure-sensitive adhesive layer that has been peeled off and is exposed is adhered to the adherend; (c) the other release paper is similarly adhered to the adherend; (d) the pressure-sensitive adhesive layer Lightly press down from above the support so that the whole is firmly fixed to the adherend, and completely adhere the pressure-sensitive adhesive layer to the adherend; (e) Provided on both sides of the support release piece With one of the non-adhesive portions, one side of the support is peeled from the base material from the abutting portion toward one end portion; (f) The remaining non-adhesive portion of the support release piece is left in the same manner with the non-adhesive portion The support is peeled from the base material from the butted portion toward the other end.

In the present invention, since the bandage is formed into a roll, it is not necessary to prepare many sizes unlike conventional ones, and it is easy to carry. In addition, the bandage is sealed in a container that does not need to be opened and closed every time the bag is taken out, and a support that is thermocompression-bonded removably on the base material of the roll-shaped bandage is provided. It has a sanitary function that can prevent dust and dirt from adhering to the base material. At the time of use, the user can freely cut and use the necessary length, so that there is no waste and the performance is also reinforced because the base material is reinforced by the support. Release paper can be easily peeled from the material. Further, the support is provided in a state where two plastic films are abutted on each other, and a support peeling piece is provided on the abutting portion as necessary. After sticking to the adherend, the support is separated from the abutting portion by the terminal. It has a good support release effect that only the support can be easily peeled off without causing a thin film-like or foil-like base material attached to the wound surface. There is no failure to wear.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an example of the present invention will be described with reference to the drawings, but the present invention is not limited thereto. FIG. 1 is a perspective view of a roll-shaped medical bandage of the present invention,
2, 3 and 4 are cross-sectional views, top views and bottom views, respectively, of the band-cut product of FIG. 1, FIG. 5 is a storage container for the roll-shaped medical bandage of the present invention, and FIG. Explanatory drawing showing a state in which a roll-shaped plaster is fed, FIG.
(D) is a usage procedure diagram of the roll-shaped medical bandage of the present invention. In the drawing, reference numeral 1 denotes a film-shaped or foil-shaped substrate, 1a
Is a terminal portion of the substrate 1, 2 is a pressure-sensitive adhesive layer provided on one side of the substrate 1, 3 is a release paper provided on the pressure-sensitive adhesive layer 2, 3a
Is a terminal portion of the release paper 3, 3 b is a slit portion of the release paper 3, 3 c is a graduation line indicating a longitudinal length of an outer surface of the release paper 3, 4 is a roll of a medical bandage, 5 is a base material 1 A support made of two plastic films provided so as to abut against each other, 5a is one end portion of the support 5, 6 is a butt portion of the support 5, and 7 is a portion between the base 1 and the support 5. 8 is a non-adhesive portion of the support release piece 8, 8 is a non-adhesive portion of the support release piece 8, which is formed of a non-adhesive plastic adhesive tape on both sides in the longitudinal direction provided on the butted portion 6 of the support 5.
8b is a pressure-sensitive adhesive portion of the support release piece 8, 9 is a roll core of the roll 4, 10 is a storage container for a roll-shaped medical bandage, 11
Is a flange portion of the storage container 10, and 12 is a bandage outlet provided on the flange portion 12.

The base material 1 used for the medical bandage of the present invention.
Consists of a plastic film or foil, especially with a thickness of 10
It is preferred to be made of a foil-shaped or film-shaped thermoplastic resin having a thickness of from μm to 120 μm. As the thermoplastic resin, those which can be thermocompression-bonded to the extent that they can be re-peeled from the plastic film constituting the support 5 are preferable. For example, polyethylene resin, polypropylene resin, polyvinyl chloride resin, polyurethane resin, polyamide resin, ethylene resin
A vinyl acetate copolymer resin, a polyester resin, a polyvinyl alcohol resin, a polyacrylate resin, a polycarbonate resin, a fluorine-containing copolymer resin, a polystyrene resin, and a polyvinylidene chloride resin are appropriately selected and used. Among them, a polyurethane resin film or foil is most suitable from the viewpoints of air permeability, thermal bonding and the like. When a non-permeable substrate is used, a polyvinylidene chloride resin having a high water vapor impermeability is preferred.

The substrate 1 used in the present invention may be transparent or opaque, and may be colored or non-colored. It is naturally preferable that the transparent material be used in applications where it must be used.

As shown in FIGS. 1 and 2, the medical bandage of the present invention has a pressure-sensitive adhesive layer 2 on one side of the substrate 1.
The pressure-sensitive adhesive layer 2 is appropriately selected from adhesives that are less fogging and irritating for medical use. As the adhesive, for example, an adhesive mainly containing a natural rubber, an aqueous polymer emulsion, a thermoplastic rubber, a polyurethane, a polyacrylester copolymer or the like is appropriately used. As the solvent, either an aqueous solvent or a solvent solvent can be used. On the other hand, the adhesive force of the pressure-sensitive adhesive layer 2 used in the present invention depends on the adherend (especially human or animal skin).
On the other hand, it is preferable to be 500 g / 50 mm to 2000 g / 50 mm. The reason is 500g / 50mm
If it is less than 200, the adhesive strength is too weak, and it may be easily peeled off due to perspiration or movement of the skin.
If it exceeds 0 g / 50 mm, the adhesive strength is too strong, and the skin may be hurt by erroneous attachment or peeling at the time of replacement.

Further, the medical bandage of the present invention is provided with a release paper 3 adhered on the pressure-sensitive adhesive layer 2 as shown in FIGS. 1 and 2, and the release paper 3 From one end along the longitudinal direction to 1/5 to 4 /
It is preferable to have a slit portion 3b slit at the position of No. 5.

The release paper 3 used in the present invention may be any one as long as it is generally used as a release paper for medical bandages. For example, silicone-treated kraft paper, glassine paper, or silicone-treated polyethylene is laminated. Kraft paper and glassine paper are preferably used.

The release force of the release paper 3 from the pressure-sensitive adhesive layer 2 is approximately 2 g / 50 mm to 20 g / 50 mm.
More preferably, it is preferably about 4 g / 50 mm to 10 g / 50 mm. The reason for this is that if the release paper 3 can be peeled off with a light force of less than 2 g / 50 mm, the release paper 3 easily peels off due to the impact or movement during storage or transportation, and the pressure-sensitive adhesive layer 2 may be exposed. And 2
This is because a heavy peeling force exceeding 0 g / 50 mm is not preferable because it takes time to peel off from the pressure-sensitive adhesive layer 2 or causes delamination of the release agent layer in use.

On the other hand, the medical bandage of the present invention has a structure shown in FIG.
As shown in FIG. 2, the base material is abutted in the longitudinal direction at the middle of the other surface (back surface) of the other surface and is removably adhered to the base material by thermocompression bonding except for this abutting portion. A support made of two plastic films is provided. Further, on the abutting portion 6 of the support 5, there is provided a support release piece 8 formed by laminating along a longitudinal direction L a plastic adhesive tape having a desired width with non-adhesive portions 8 b on both sides in the width direction. preferable.

2 constituting the support 5 used in the present invention.
One plastic film has a thickness of, for example, 20 μm to 1 μm.
It is selected from a known thermoplastic polymer having a thickness of 20 μm, and is preferably a material that can be heat-fused to such an extent that it can be re-peeled from the foil or film constituting the substrate 1. As such a plastic film, a film of polyethylene, polypropylene, polyamide, polyvinyl chloride, polyester, or the like is appropriately selected in consideration of the combination with the substrate 1. For example, when a polyurethane film is used as the substrate 1, polyester (PET) suitable as the urethane-based support 5 in consideration of the thermocompression bonding property with the substrate 1 and the hardness and elongation of the support 5 film.
Film is mainly used.

The supporting member 5 is formed by abutting two plastic films, but the position of the abutting portion 6 does not necessarily have to be located only at the central portion, but is located in the middle of the width direction W, preferably the substrate 1. Terminal 5 of support 5 aligned with terminal 1a of substrate 1 in width direction W of
It suffices if it is within the range of about 1/5 to 4/5 of the entire width from a. The reason is that when the support 5 is peeled off from the substrate 1, the terminal 1 a of the substrate 1 must be removed from the substrate 1 so that the support 5 can be smoothly released without causing the end of the substrate 1 attached to the adherend. This is because it is only necessary that the support 5 can be peeled from the inner position with the two films directed toward both ends.

Further, the support 5 is removably thermocompression-bonded to one surface (back surface) of the substrate 1 except for the abutting portion 6, but the thermocompression bonding portion 7 between the support 5 and the substrate 1 is provided. Is preferably larger than the peel strength between the release paper 3 and the pressure-sensitive adhesive layer 2 and smaller than the peel strength between the support 5 and the support release piece 8. Specifically, the peel strength between the support 5 and the substrate 1 is 5 g / 50 mm to 50 g / 5.
0 mm, the peel strength between the release paper 3 and the pressure-sensitive adhesive layer 2 is 2 g / 50 mm to 20 g / 50 mm as described above, and the peel strength between the support 5 and the support release piece 8 is 30 g / 50.
It is preferable that each of them is designed to have a thickness of 50 to 300 g / 50 mm. These values have a peeling force of 500 g / 50 between the adherend and the pressure-sensitive adhesive layer 2 even at the maximum value.
It is preferable that consideration is made so as not to exceed 1/2 of the range of mm to 2000 g / 50 mm. This is a result of taking care not to peel the substrate 1 from the adherend under any condition in each peeling,
If the peeling strength is larger than 1/2, there is a risk that the base material 1 is peeled off from the adherend due to the conditions for sticking the pressure-sensitive adhesive layer 2 to the adherend, such as sweating. This is not preferred. The reason why the peel strength of the thermocompression bonding portion 7 is larger than the peel strength between the release paper 3 and the pressure-sensitive adhesive layer 2 is that the support 5 is first peeled from the base material 1 when the release paper 3 is peeled. The reason for making the peel strength between the support 5 and the support peeling piece 8 smaller than that of the support 5 is that the adhered portions 8a provided on both sides of the support peeling piece 8 This is to prevent the support release piece 8 from being peeled off from the support 5 first when the support 5 is peeled off from the base 1 by being gripped and the support 5 cannot be peeled off from the base 1.

As shown in FIG. 3, the width (W ₃ ) of the adhesive tape used for the support strip 8 is preferably 2 cm to 4 cm irrespective of the width of the roll 4. The length (W2) is preferably 0.5 cm to ₂ cm. Further, the adhesive tape with a dry edge, which is the support release piece 8, may be transparent or opaque as in the case of the support 5, may be colored or not colored,
In the case of sticking while watching the affected part such as a wound, a transparent or colored transparent adhesive tape is preferable.

It is preferable that the outer surface of the release paper 3 has a display indicating the length in the longitudinal direction. For example, as shown in FIG. 4, graduation lines 3c provided at regular intervals in parallel with the width direction (W).
Can be provided. The graduation line 3c is a measure of the length in the longitudinal direction when the bandage is cut into a desired length, and the line interval is desirably, for example, about 0.5 cm to 2 cm. In addition, it is of course possible to print a number, a character or a symbol instead of the scale line 3c or in addition to the scale line 3c, or to print the line only at both ends, which is a measure of the length in the longitudinal direction. Any display may be provided so that the required area can be easily cut out and used.

One example of the method of using the roll-shaped medical plaster of the present invention is as follows. First, as shown in FIG.
Outer diameter of core is 1.5cm ~ 10cm, width is 2cm ~ 30c
m, a roll-shaped plaster wound around a cylindrical roll core 9 is drawn out by a desired length from the outlet of the container 10 as shown in FIG. 6, and the release paper 3 as shown in FIG. Is cut in the width direction with reference to the scale line 3c. Next, FIG.
As shown in (b) and (c), after one release paper 3 is peeled from the pressure-sensitive adhesive layer 2 from the inside to the outside, the pressure-sensitive adhesive layer 2 that has been peeled off and exposed is removed. The part is adhered together with the support 5, and the other release paper 3 is similarly adhered to the adherend. Next, the pressure-sensitive adhesive 2 is lightly pressed from above the support 5 so as to firmly adhere to the adherend, and the pressure-sensitive adhesive layer 2 is completely adhered to the adherend.
Finally, as shown in FIG. 7D, one of the supports 5 is held with one of the non-adhesive portions 8a provided on both sides of the support release piece 8 from the butted portion 6 toward one terminal 5a. Then, the remaining support 5 having the non-adhesive portion 8a of the remaining support peeling piece 8 is peeled from the base 1 from the butt 6 toward the other end 5a. The use method of such a bandage is the terminal portion 1a of the base material 1.
It is effective to easily and safely perform the sticking without causing wrinkles or wrinkling the substrate 1.

Practical example of the roll-shaped medical plaster of the present invention A pressure-sensitive adhesive layer is formed on one surface of a transparent polyurethane film 1 having a length (L) of 10 m, a width (W) of 10 cm and a thickness of 30 μm. Acrylic adhesive 30 μm is applied as 2 and further 4 cm from one end 5 a of the support aligned with the end 1 a of the base material 1 on the pressure-sensitive adhesive layer 2.
A release paper 3 having a slit at the position in the longitudinal direction is attached thereto, and two transparent PP films abutted in the longitudinal direction at the center in the width direction on the other surface of the substrate 1 are supported by the support 5.
This is thermally bonded to the polyurethane film of the base material 1 except for the butted portion 6 and is removably adhered.
Further, a colored transparent PP adhesive tape having a width of 30 mm (W ₃ + W ₂ × 2) having a dry edge of 5 mm on both sides (W ₂ ) is formed on the butted portion 6 as a support peeling piece 8, and the butted portion 6 of the support 5 is formed. Laminated in the same longitudinal direction as
This was wound around a roll core 9 having an outer diameter of 5 cm with the release paper 3 inside, to obtain a roll-shaped medical bandage having a roll diameter of 7 cm as shown in FIGS.

Next, the obtained roll-shaped medical plaster is
After being stored in a storage container 10 having a width 12 cm, a depth 10 cm, and a height 8 cm and having a draw-out opening 12 in a flange portion 11 as shown in FIG. 5, the bandage is placed so that the outer surface of the release paper 3 comes to the upper side from the draw-out opening 12. And along the scale line 3c printed on the back surface of the release paper 3 as shown in FIG.
It was cut to a length of 0 cm, and the performance of the bandage was examined and put to practical use. The results shown in Table 1 were obtained.

[0025]

[Table 1]

As can be seen from Table 1, the performance and practical results of the roll-shaped medical plaster of the present invention were extremely satisfactory.

[0027]

As described above, according to the present invention, since the bandage is in a roll shape, it is convenient for taking out and carrying. In addition, any kind of wound surface can be dealt with by one kind of roll-shaped size, and since it can be cut and used freely on site only for a required area, there is no waste of adhesive bandage. In addition, since the display indicating the length in the longitudinal direction is provided, the required length is estimated at the time of cutting, which is very convenient. Further, since the bandage can be stored in a storage container and stored together with the container, it is possible to prevent dust and dirt from adhering to the bandage or dirt during storage. On the other hand, when used, the support is made of a transparent film, so that the transparent area ratio is high, the effective sticking area can be easily held, and the support can be peeled off from the butted portion toward the terminal. As such, it can be peeled off without causing or wrinkling the thin substrate adhered to the wound surface. Furthermore, since the support and the base material are removably bonded by thermocompression bonding, there is no stickiness such as glue residue on the base material surface after the support is peeled off, so that adhesion of dust and the like can be prevented. Is also obtained.

[Brief description of the drawings]

FIG. 1 is a perspective view of a roll-shaped medical plaster of the present invention.

FIG. 2 is a cross-sectional view of the bandage cut product of the bandage of FIG. 1;

FIG. 3 is a top view of a widthwise cut product of the bandage of FIG. 1;

FIG. 4 is a bottom view of the bandage cut product of the bandage of FIG. 1;

FIG. 5 is a storage container for a roll-shaped medical bandage of the present invention.

FIG. 6 is an explanatory view showing a state in which a roll-shaped plaster is fed from a storage container.

7 (a) to 7 (d) are flow charts showing the use of the roll-shaped medical plaster of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Foil-shaped or film-shaped base material 1a Terminal part of base material 2 Pressure-sensitive adhesive layer 3 Release paper 3a Terminal part of release paper 3b Slit part of release paper 3c Scale line 4 Roll 5 Support 5a Terminal of support Reference Signs List 6: Butt of supporting body 7: Thermo-compression bonding part between base material and supporting body 8: Supporting strip 8a Non-adhesive part of supporting strip 8b: Adhesive part of supporting strip 9 Roll core 10 Storage container 11 Flange 12 Outlet

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Shiro Morioka 3-20-28 Tachibana, Nishinari-ku, Osaka, Osaka Prefecture Kyowa Corporation (72) Inventor Junzo Ota 3--20, Tachibana, Nishinari-ku, Osaka, Osaka No. 28 Kyowa Co., Ltd.

Claims (13)

[Claims] 1. A medical bandage having the following constitutions (i) to (iv), wherein the bandage is wound around a roll core with a release paper inside. Adhesive plaster: (i) a base material made of a plastic film or foil; (ii) a pressure-sensitive adhesive layer provided on one surface of the base material; (iii) a release sticking on the pressure-sensitive adhesive layer (Iv) two sheets that are abutted in the longitudinal direction at the middle of the other surface of the base material in the width direction, and are removably adhered to the base material by thermocompression bonding except for the abutting portion; A support made of a plastic film. And (v) a support release piece formed by laminating a plastic adhesive tape having a desired width on both sides in the width direction on the butted portion of the support in the same longitudinal direction as the butted portion. The roll-shaped medical plaster according to claim 1, further comprising: 3. The roll according to claim 1, wherein the release paper is slit at one-fifth to four-fifths of the entire width from one end along the longitudinal direction. Medical bandage. 4. The roll core has an outer diameter of 1.5 cm to 10 c.
The roll-shaped medical plaster according to any one of claims 1 to 3, wherein the plaster is a cylindrical shape having a width of 2 m to 30 cm. 5. The roll-shaped medical plaster according to claim 1, wherein the release paper has an indication on its outer surface indicating a length in a longitudinal direction. 6. The plastic film or foil constituting the base material is a urethane film or foil having a thickness of 10 μm to 120 μm, and the plastic film constituting the support is a plastic film having a thickness of 20 μm to 120 μm. The roll-shaped medical plaster according to any one of claims 1 to 5, wherein 7. The support according to claim 1, wherein the abutting portion of the support is located at a position 1/5 to 4/5 of the entire width from one terminal of the support aligned with the terminal of the base material. Item 1
The roll-shaped medical bandage according to any one of claims 1 to 6. 8. The peel strength between the support and the substrate is greater than that between the release paper and the pressure-sensitive adhesive layer, and smaller than that between the support and the release piece of the support. The roll-shaped medical plaster according to any one of claims 2 to 7, characterized in that: 9. The method according to claim 2, wherein the peel strength between the support and the support release piece is smaller than １ ／ of that between the adherend and the pressure-sensitive adhesive layer. The roll-shaped medical plaster according to any one of the above. 10. The peel strength between the support and the substrate is 5 g.
/ 50mm-50g / 50mm, The roll-shaped medical bandage according to any one of claims 1 to 9, characterized in that: 11. The roll-shaped medical plaster according to claim 2, wherein the peel strength between the support and the support release piece is 30 g / 50 mm to 300 g / 50 mm. 12. An openable and closable storage container for storing the roll-shaped medical bandage according to any one of claims 1 to 11, wherein the container is capable of drawing out the bandage to a flange when the container is closed. A storage container having a mouth. 13. A method for using the roll-shaped medical plaster according to any one of claims 2 to 11, wherein the method is used according to the following procedures (a) to (f): Unwind the bandage by the desired length and cut it in the width direction; (b) Peel one release paper from inside to outside,
The part of the pressure-sensitive adhesive layer that has been peeled off and is exposed is adhered to the adherend; (c) the other release paper is similarly adhered to the adherend; (d) the pressure-sensitive adhesive layer Lightly press down from above the support so that the whole is firmly fixed to the adherend, and completely adhere the pressure-sensitive adhesive layer to the adherend; (e) Provided on both sides of the support release piece With one of the non-adhesive portions, one side of the support is peeled from the base material from the abutting portion toward one end portion; (f) The remaining non-adhesive portion of the support release piece is left in the same manner with the non-adhesive portion The support is peeled from the base material from the butted portion toward the other end.