KR20240140553A - Medical Dressing Patch And Method For Manufacturing The Same - Google Patents

Abstract

The present invention relates to a medical dressing and a method for manufacturing the same, and more specifically, to a medical dressing and a method for manufacturing the same, comprising: a pad portion (100); a backing film (200) positioned to overlap with one surface of the pad portion (100); an adhesive film (320) positioned to overlap with the other surface of the pad portion (100) and having an edge region that overlaps with the backing film (200); a first adhesive layer (330) positioned on an outer surface of the adhesive film (320) and in close contact with a wound; and a third release film (400) for protecting the first adhesive layer (330); wherein the adhesive film (320) and the first adhesive layer (330) are provided with a plurality of ventilation holes, and the plurality of ventilation holes are positioned only in an area that overlaps with the backing film (200).

Description

Medical dressing material and method for manufacturing the same {Medical Dressing Patch And Method For Manufacturing The Same}

The present invention relates to a medical dressing and a method for manufacturing the same, and more specifically, to a medical dressing which is capable of simultaneously facilitating adhesion to an affected area and absorption of exudate, and minimizing irritation or damage to the skin, and a method for manufacturing the same.

In general, medical dressings are widely used to protect and treat skin wounds such as minor burns, wounds, and trauma. That is, medical dressings function to prevent further contamination by reducing heat evaporation and moisture loss from the wound surface, and provide a function to reduce bacterial growth within the wound.

In the past, disposable gauze-shaped medical bands were used as medical dressing bands. Since the bands extend to both sides of the gauze that come into contact with the wound and adhere to the skin, the gauze can be fixed without coming off the skin while in contact with the wound.

Meanwhile, dressings that can more actively protect and treat wounds have been developed and used recently.

A medical dressing material is composed of a pad part that directly contacts a wound and absorbs and retains exudate from the wound, and an adhesive film that is positioned on the upper part of the pad part and attached to the wound so that the pad part can be fixed to the wound site.

However, when the affected area is large, a pad with a large area that can cover the entire affected area is required, and this causes a phenomenon in which the space between the affected area and the pad is lifted, which poses a problem in that the pad cannot perform its function sufficiently.

Korean Patent Publication No. 2011-0076205

In order to solve the above problems, the present invention aims to provide a medical dressing material that can reliably adhere to a wound even when the pad area is large, and a method for manufacturing the same.

In addition, the present invention aims to provide a medical dressing having a structure that facilitates absorption of exudate from a wound and a method for manufacturing the same.

In addition, the present invention aims to provide a medical dressing material and a method for manufacturing the same that can minimize damage or irritation to the skin.

In order to solve the above problems, a medical dressing according to the present invention comprises: a pad portion (100); a backing film (200) positioned to overlap with one surface of the pad portion (100); an adhesive film (320) positioned to overlap with the other surface of the pad portion (100) and having an edge region that overlaps with the backing film (200); a first adhesive layer (330) positioned on an outer surface of the adhesive film (320) and in close contact with a wound; and a third release film (400) for protecting the first adhesive layer (330); wherein the adhesive film (320) and the first adhesive layer (330) are provided with a plurality of ventilation holes, and the plurality of ventilation holes are characterized in that they are positioned only in an area that overlaps with the pad portion (100).

In addition, in the medical dressing material according to the present invention, the first adhesive layer (330) is made of silicone material, and a second adhesive layer made of acrylic material is applied to the inner surface of the backing film (200).

In addition, in the medical dressing material according to the present invention, a memo line (210) is further provided on the outer surface of the backing film (200).

In addition, in the medical dressing material according to the present invention, a plurality of incision lines (110) having a certain shape are formed on the pad portion (100).

In addition, a method for manufacturing a medical dressing according to the present invention comprises: a first step of preparing a pad portion (100), a backing film (200), an adhesive film (320) having a plurality of first ventilation holes (321) formed therein, a first adhesive layer (330) having a plurality of second ventilation holes (331) formed therein and having one surface in close contact with the adhesive film (320), a second release film (340) having a plurality of third ventilation holes formed therein and being in close contact with the other surface of the first adhesive layer (330), and a third release film (400); a second step of positioning the backing film (200) so as to overlap one surface of the pad portion (100); a third step of overlapping the adhesive film (320) on the other surface of the pad portion (100) and a portion of the edge of the backing film (200); a fourth step of separating the second release film (340) to expose the first adhesive layer (330) to the outside; and a fifth step of positioning the third release film (400) on the exposed surface of the first adhesive layer (330).

In addition, in the method for manufacturing a medical dressing according to the present invention, the adhesive film (320) having a plurality of first ventilation holes (321) formed in the first step, the first adhesive layer (330) having a plurality of second ventilation holes (331) formed, and the second release film (340) having a plurality of third ventilation holes formed are laminated in the following order: a step 1a of preparing a fabric film (300) in which the first release film (310), the adhesive film (320), the first adhesive layer (330), and the second release film (340) are laminated from below; a step 1b of forming a cut area corresponding to the first to third ventilation holes by punching with a mold (500) equipped with a cutter (520) having the same shape as the first to third ventilation holes; And it is characterized by comprising a step 1c of forming the first ventilation hole (321) to the third ventilation hole by separating the first release film (310) from the adhesive film (320) and removing the cutting area.

In addition, in the method for manufacturing a medical dressing according to the present invention, the adhesive film (320) is characterized in that it is made of polyurethane (PU) material.

In addition, in the method for manufacturing a medical dressing according to the present invention, the first release film (310) and the second release film (340) are characterized in that they are made of polyethylene terephthalate (PET), polyethylene (PE), or paper material.

In addition, in the method for manufacturing a medical dressing according to the present invention, it is characterized in that a plurality of incision lines (110) having a predetermined shape are formed in the pad portion (100) in the first step.

In addition, in the method for manufacturing a medical dressing according to the present invention, the incision line (110) is characterized in that it is formed to a certain depth from one side of the pad portion (100) in close contact with the backing film (200) toward the other side.

In addition, in the method for manufacturing a medical dressing according to the present invention, it is characterized in that a memo line (210) is formed on the backing film (200) in the first step.

In addition, in the method for manufacturing a medical dressing according to the present invention, it is characterized in that the inner surface of the backing film (200) in contact with one surface of the pad portion (100) is coated with a second adhesive layer made of acrylic material.

In addition, in the method for manufacturing a medical dressing according to the present invention, it is characterized by further performing a sixth step of forming a memo line (210) in a certain area of the backing film (200).

According to the medical dressing material of the present invention and the method for manufacturing the same, a backing film is positioned on one side of the pad portion, while an adhesive film and an adhesive layer made of silicone are sequentially provided on the other side, so that the pad portion can always maintain a state of close contact with the affected area.

In addition, according to the medical dressing material of the present invention and the manufacturing method thereof, the adhesive film and the first adhesive layer located on the other side of the pad part have ventilation holes provided only in a position overlapping the pad part, so that exudate produced in the affected area can easily move to the pad part, and the second adhesive layer made of acrylic material on the inner side of the backing film does not come into contact with the skin, so that skin irritation or damage can be prevented, which has the advantage.

In addition, according to the medical dressing material of the present invention and the method for manufacturing the same, the pad portion has a number of incision lines, so that not only is the adhesion excellent even when the affected area is curved, but there is also an advantage in that it is easier for the patient to move around.

Figure 1 is a drawing showing the upper surface of a medical dressing material according to the present invention.
Figure 2 is a drawing showing the lower surface of the medical dressing material illustrated in Figure 1.
Figure 3 is a plan view of a pad portion constituting a medical dressing material according to the present invention.
Figure 4 is a cross-sectional view taken along line AA of Figure 1.
FIG. 5 is a perspective view showing a first adhesive layer provided on an adhesive film laminated to the medical dressing material illustrated in FIG. 1.
Figure 6 is a perspective view for explaining a method of using a medical dressing according to the present invention.
Figure 7 is a flow chart for explaining a method of forming ventilation holes in an adhesive film and a first adhesive layer.
Figure 8 is a flow chart for explaining a method for manufacturing a medical dressing material of the present invention.

It should be understood that the terms “include,” “have,” or “equip” in this application are intended to specify the presence of a feature, number, step, component, part, or combination thereof described in the specification, and do not exclude in advance the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

When it is said that an element is "connected" or "connected" to another element, it should be understood that it may be directly connected or connected to that other element, but that there may be other elements in between. On the other hand, when it is said that an element is "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between. Other expressions that describe the relationship between elements, such as "between" and "directly between" or "adjacent to" and "directly adjacent to", should be interpreted similarly.

In addition, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms defined in commonly used dictionaries, such as those defined in common dictionaries, should be interpreted as having a meaning consistent with the meaning they have in the context of the relevant art, and shall not be interpreted in an idealized or overly formal sense, unless explicitly defined in this application.

Hereinafter, a medical dressing material and a manufacturing method thereof according to the present invention will be described with reference to the attached drawings. The same reference numerals are used for the same components in the drawings, and duplicate descriptions of the same components are omitted.

FIG. 1 is a drawing showing the upper surface of a medical dressing material according to the present invention, FIG. 2 is a drawing showing the lower surface of the medical dressing material shown in FIG. 1, and FIG. 3 is a plan view of a pad portion constituting the medical dressing material according to the present invention.

Also, FIG. 4 is a cross-sectional view taken along line A-A of FIG. 1, FIG. 5 is a perspective view showing a state in which a first adhesive layer is provided on an adhesive film laminated to a medical dressing material illustrated in FIG. 1, and FIG. 6 is a perspective view for explaining a method of using a medical dressing material according to the present invention.

As illustrated in FIGS. 1 to 6, a medical dressing material according to the present invention may be configured to include a pad portion (100), a backing film (200), an adhesive film (320), a first adhesive layer (330), and a third release film (400).

First, the pad portion (100) is intended to cover the patient's affected area to prevent infection or to help the wound heal quickly, has a predetermined thickness and area, and may be composed of known absorbent materials such as gauze, cotton, non-woven fabric, hydrocolloid, hydro gel, polyurethane foam, polyacrylate, polyvinyl alcohol, polyvinyl pyrrolidone, and expandable synthetic polymers.

Here, it is preferable that a plurality of cutting lines (110) having a certain shape are formed on the pad portion (100). Specifically, it is preferable that the cutting lines (110) are formed from one side of the pad portion (100) that comes into contact with the backing film (200) toward the other side that comes into contact with the adhesive film (320), and at this time, it is more preferable that the cutting lines (110) do not completely penetrate the pad portion (100). When the cutting lines (110) as described above are provided on the pad portion (100), even if attached to a joint or a curved affected area, it is easy to bend, so excellent adhesion can be maintained, making it easy to absorb exudate and allowing freer movement of the affected area.

Although the shapes viewed from above in FIG. 3 are described as semi-elliptical and wedge-shaped as examples, the shape of the cutting line (110) is not particularly limited as long as the above-described function can be achieved.

The backing film (200) has a thickness of approximately 0.015 to 0.090 mm and is positioned to overlap one side of the pad portion (100) to form the opposite side of the contact surface of the affected area, and serves to protect the pad portion (100) from foreign substances including viruses or bacteria. The backing film (200) may be provided with a material that has waterproof/moisture-proof functions, as well as flexibility and elasticity, and may be manufactured from, for example, polyurethane, polyethylene, a styrene-isoprene copolymer, a styrene-butadiene block copolymer, polyvinyl chloride, polyamide, or a mixture thereof. Although not shown in the drawing, a plurality of ventilation holes may be additionally formed to allow outside air to pass through.

In addition, the inner surface of the backing film (200) facing the pad portion (100) is provided with a second adhesive layer (not shown), for example, a second adhesive layer made of acrylic material, so that it can be firmly bonded to the pad portion (100) and the adhesive film (320).

Meanwhile, a memo column (210) may be additionally provided on the outer surface of the backing film (200). The memo column (210) may be used to record the time of attachment of the medical dressing material so that the replacement time can be known. Of course, it is obvious that other necessary information, such as the size of the wound and the time when the dressing material was first attached, can be recorded.

Continuing, the adhesive film (320) is positioned on the inner surface of the backing film (200), that is, on the other surface of the pad portion (100), and some of the edge area overlaps with the inner surface of the backing film (200), so that the pad portion (100) is interposed between the backing film (200) and the adhesive film (320).

Here, the adhesive film (320) is made of polyurethane (PU) material having a thickness of approximately 0.015 to 0.090 mm.

The first adhesive layer (330) is located on the outer exposed surface of the adhesive film (320), that is, the opposite surface that is not in close contact with the pad portion (100), and is in direct contact with the affected area.

At this time, the first adhesive layer (330) is preferably made of silicone material with a thickness of approximately 0.04 to 0.12 mm, as this provides excellent adhesion to the affected area and is also advantageous in minimizing irritation or damage to the skin.

Meanwhile, the adhesive film (320) and the first adhesive layer (330) are provided with a plurality of ventilation holes so that exudate discharged from the affected area can pass through and move to the pad portion (100). Specifically, the adhesive film (320) is provided with a plurality of first ventilation holes (321), and the first adhesive layer (330) is provided with a plurality of second ventilation holes (331), and the first ventilation holes (321) and the second ventilation holes (331) overlap each other.

And it is preferable that these first ventilation holes (321) and second ventilation holes (331) be located only in the area overlapping the pad portion (100), because this prevents the acrylic material adhesive layer on the inner side of the backing film (200) from being dissolved into the skin, thereby preventing skin irritation or damage.

Although the first ventilation hole (321) is depicted as being circular in FIG. 5, this is only an example and it is obvious that the shape can be changed in any way and the number or inner diameter can also be adjusted.

The third release film (400) is a layer for protecting the first adhesive layer (330), and is maintained in a state of being fixed to the first adhesive layer (330) before use, and is removed before being attached to the affected area (see FIG. 6). Although the drawing shows the third release film (400) as being composed of one sheet, it may be composed of two sheets with some of the middle portions overlapping each other.

FIG. 7 is a flow chart for explaining a method of forming ventilation holes in a first adhesive film and a second adhesive film, and FIG. 8 is a flow chart for explaining a method of manufacturing a medical dressing material of the present invention.

With reference to these drawings 7 and 8, a method for manufacturing a medical dressing according to the present invention will be described.

The method for manufacturing a medical dressing according to the present invention comprises: a first step of preparing a pad portion (100), a backing film (200), an adhesive film (320) having a plurality of first ventilation holes (321) formed therein, a first adhesive layer (330) having a plurality of second ventilation holes (331) formed therein and having one surface in close contact with the adhesive film (320), a second release film (340) having a plurality of third ventilation holes formed therein and being in close contact with the other surface of the first adhesive layer (330), and a third release film (400); a second step of positioning the backing film (200) so as to overlap one surface of the pad portion (100); a third step of overlapping the adhesive film (320) on the other surface of the pad portion (100) and a portion of an edge area of the backing film (200); a fourth step of separating the second release film (340) to expose the first adhesive layer (330) to the outside; and a fifth step of positioning a third release film (400) on the exposed surface of the first adhesive layer (330).

First, to describe the first step in detail, the pad part (100) is composed of known absorbent materials such as gauze, cotton, non-woven fabric, hydrocolloid, hydro gel, polyurethane foam, polyacrylate, polyvinyl alcohol, polyvinyl pyrrolidone, expandable synthetic polymer, etc. as described above, and is prepared to have a certain thickness, area, and shape. Of course, when forming an incision line, a forming blade (not shown) can be used, but it is not necessarily limited thereto as long as an incision line can be formed.

The backing film (200) prepared from polyurethane, polyethylene, styrene-isoprene copolymer, styrene-butadiene block copolymer, polyvinyl chloride, polyamide or a mixture thereof has a larger area than the pad portion (100) so that an area to be fixed to the affected area can be provided.

In addition, an adhesive layer made of acrylic material is applied to the inner surface of the backing film (200), that is, the surface in contact with the pad portion (100), so that it can be closely fixed to the pad portion (100) and the adhesive film (320). Of course, it may be an adhesive used for medical purposes, such as a hydrocolloid adhesive or a hydrogel adhesive.

In addition, a memo line may be attached to a predetermined portion of the outer surface of the backing film (200), that is, the surface on which the second adhesive layer is not applied. Of course, the memo line may be formed after the fifth step of positioning the third release film (400) on the exposed surface of the first adhesive layer (330), or the memo line may be formed by laminating the memo line on the backing film (200) fabric and then cutting the memo line together when cutting the backing film. In addition, it is preferable that a separate adhesive is applied to the inner surface of the memo line so that it can be fixed to the backing film (200).

Meanwhile, an adhesive film (320) having a plurality of first ventilation holes (321) formed therein, a first adhesive layer (330) having a plurality of second ventilation holes (331) formed therein and provided on one surface of the adhesive film (320), and a second release film (340) having a plurality of third ventilation holes formed therein and in close contact with the other surface of the first adhesive layer (330) are formed by punching the raw film (300) to form ventilation holes.

Specifically, referring to Fig. 7, a fabric film (300) is prepared in which a first release film (310), an adhesive film (320), a first adhesive layer (330), and a second release film (340) are sequentially laminated from below (step 1a).

Here, the first release film (310) and the second release film (340) may be made of polyethylene terephthalate (PET), polyethylene (PE), or paper material having a thickness of approximately 0.05 to 0.15 mm.

And the adhesive film (320) is made of polyurethane (PU) material with a thickness of approximately 0.015 to 0.090 mm, and the first adhesive layer (330) is made of silicone material with a thickness of approximately 0.04 to 0.12 mm.

After preparing a fabric film (300) having the above configuration, a ventilation hole is formed by punching (step 1b). That is, a first release film (310), an adhesive film (320), a first adhesive layer (330), and a second release film (340) are sequentially laminated from the top of the fabric film (300) to the bottom of the support member (510) by punching using a mold (500) equipped with a cutter (520).

At this time, the tip of the cutter (520) is moved only to the extent that it can sequentially penetrate the remaining films, namely the second release film (340), the first adhesive layer (330), and the adhesive film (320), without penetrating the first release film (310). Of course, if the tip of the cutter (520) does not completely penetrate the first release film (310), it is acceptable for a portion of the film to be cut.

Although not shown in the drawing, it is obvious that an elevating means for elevating the mold (500) may be further provided, and cutters having a shape and number corresponding to the ventilation holes to be formed are provided on the support member (510).

By going through the above process, a cut region is provided in which a first ventilation hole (321) can be formed in the adhesive film (320), a second ventilation hole (331) can be formed in the first adhesive layer (330), and a third ventilation hole can be formed in the second release film (340). Of course, as described above, the ventilation holes should be formed only in the region overlapping the pad portion.

Next, the first release film (310) is separated from the adhesive film (320) to remove the cut area (A) (step 1c). The adhesive film (320) is made of a flexible polyurethane (PU) material, while the first release film (310) is made of polyethylene terephthalate (PET) or paper material. Therefore, the first release film (310) is separated from the adhesive film (320) relatively easily, and at this time, the cut areas are separated together while remaining attached to the first release film (310).

Subsequently, in the second step, the backing film (200) is positioned so as to overlap with one side of the pad portion (100), and in the third step, a film layer in which the aforementioned multiple ventilation holes are formed and in which the adhesive film (320), the first adhesive layer (330), and the second release film (340) are sequentially laminated from below is overlapped with the other side of the pad portion (100) and a portion of the edge of the backing film (200).

In addition, in the fourth step, the second release film (340) is separated to expose the first adhesive layer (330) that is in close contact with the affected area, and finally, the third release film (400) to prevent contamination of the first adhesive layer (330) is positioned on the exposed surface of the first adhesive layer (330).

Here, the third heteromorphic film (400) may be made of the same material as the second heteromorphic film (340).

While specific portions of the present invention have been described in detail above, it will be apparent to those skilled in the art that these specific descriptions are merely preferred embodiments and that the scope of the present invention is not limited thereby, and that various changes and modifications are possible within the scope and technical idea of the present invention, and it will be apparent to those skilled in the art that such changes and modifications also fall within the scope of the appended patent claims.

100: Pad part
110: Incision line
200: Backing Film
210: Memo
300: Fabric Film
310: 1st heteromorphic film
320: Adhesive film 321: First ventilation hole
330: First adhesive layer 331: Second air hole
340: 2nd heteromorphic film
400: Third heteromorphic film
500: Mold
510: Support 520: Cutter
A: Incision area

Claims (12)

Pad part (100);
A backing film (200) positioned to overlap one side of the above pad portion (100);
An adhesive film (320) positioned to overlap with the surface of the pad portion (100) and having a portion of the edge area overlap with the backing film (200);
A first adhesive layer (330) positioned on the outer surface of the adhesive film (320) and in close contact with the affected area; and
Including a third release film (400) for protecting the first adhesive layer (330);
A medical dressing material characterized in that the adhesive film (320) and the first adhesive layer (330) are provided with a plurality of ventilation holes, and the plurality of ventilation holes are located only in an area overlapping the pad portion (100).
In the first paragraph,
A medical dressing material characterized in that the first adhesive layer (330) is made of silicone material and a second adhesive layer made of acrylic material is applied to the inner surface of the backing film (200).
In the first paragraph,
A medical dressing material characterized in that the outer surface of the backing film (200) further includes a memo line (210).
A method for manufacturing a medical dressing material as described in Article 1,
A first step of preparing a pad portion (100), a backing film (200), an adhesive film (320) having a plurality of first ventilation holes (321) formed therein, a first adhesive layer (330) having a plurality of second ventilation holes (331) formed therein and one surface of which is in close contact with the adhesive film (320), a second release film (340) having a plurality of third ventilation holes formed therein and in close contact with the other surface of the first adhesive layer (330), and a third release film (400);
A second step of positioning the backing film (200) so as to overlap one side of the above pad portion (100);
A third step of overlapping the adhesive film (320) on the surface of the pad portion (100) and a portion of the edge of the backing film (200);
A fourth step of separating the second heteromorphic film (340) to expose the first adhesive layer (330) to the outside; and
A method for manufacturing a medical dressing, characterized by including a fifth step of positioning the third release film (400) on the exposed surface of the first adhesive layer (330).
In paragraph 4,
The adhesive film (320) in which a plurality of first ventilation holes (321) are formed in the first step, the first adhesive layer (330) in which a plurality of second ventilation holes (331) are formed, and the second release film (340) in which a plurality of third ventilation holes are formed,
Step 1a of preparing a fabric film (300) laminated in the order of a first release film (310), an adhesive film (320), a first adhesive layer (330), and a second release film (340) from below;
Step 1b of forming a cutting area corresponding to the first to third ventilation holes by punching with a mold (500) equipped with a cutter (520) having the same shape as the first to third ventilation holes; and
A method for manufacturing a medical dressing, characterized by comprising a step 1c of forming first to third ventilation holes (321) by removing the cutting area by separating the first release film (310) from the adhesive film (320).
In paragraph 5,
A method for manufacturing a medical dressing, characterized in that the above adhesive film (320) is made of polyurethane (PU) material.
In paragraph 5,
A method for manufacturing a medical dressing, characterized in that the first release film (310) and the second release film (340) are made of polyethylene terephthalate (PET), polyethylene (PE), or paper material.
In paragraph 4,
A method for manufacturing a medical dressing, characterized in that a plurality of incision lines (110) having a predetermined shape are formed in the pad portion (100) in the first step.
In Article 8,
A method for manufacturing a medical dressing, characterized in that the above-mentioned incision line (110) is formed to a certain depth from one side of the pad portion (100) in close contact with the backing film (200) toward the other side.
In paragraph 5,
A method for manufacturing a medical dressing, characterized in that a memo line (210) is formed on the backing film (200) in the first step.
In paragraph 4,
A method for manufacturing a medical dressing, characterized in that an inner surface of the backing film (200) in contact with one surface of the pad portion (100) is coated with a second adhesive layer made of acrylic material.
In paragraph 4,
A method for manufacturing a medical dressing, characterized by further performing a sixth step of forming a memo line (210) on a certain area of the outer surface of the backing film (200).

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