TWI781522B - wound care patch - Google Patents

Abstract

A wound care patch, comprising an absorbing layer and an adhesive layer arranged on the absorbing layer. The absorbing layer includes an inner surface and an outer surface on two opposite sides, and four arc-shaped sides connected between the inner surface and the outer surface, engaging with each other, and extending away from each other. Each arc-shaped side has two endpoints, four auxiliary lines respectively connecting the two endpoints of the arc-shaped sides are defined, and the auxiliary lines respectively surround and define four airfoil regions with the arc-shaped sides, the Among the equal airfoil regions, at least one airfoil region has an area larger than the rest of the airfoil regions. The arc design of one of the larger airfoil regions and the arc edges matches the curves of wounds in different parts, thereby improving the tightness of application to the wound.

Description

Wound Care Patches

The invention relates to a wound dressing, in particular to a wound care patch attached to a special part.

Nowadays, there are many kinds of wound dressing products and they are changing with each passing day. Usually, the wounded will choose the appropriate wound dressing according to the nature of the wound after wound debridement or suturing the wound after surgery, and provide a good healing environment for the wound to block foreign objects. And from various bacteria and viruses in the environment to invade the wound and cause infection. However, most of the currently existing wound dressings are rectangular or frame-shaped. , because the local area of the skin pasted around the wound is small, it is easy to lift or fall off. In addition, the wounded person cuts the wound dressing in order to meet the requirement of sticking to a special part, which causes waste of materials used for the wound dressing. Therefore, the existing wound dressing needs to be improved.

Therefore, the object of the present invention is to provide a dressing that does not waste and can Wound care patches that are tightly attached to wounds at special locations.

Thus, the wound care patch of the present invention comprises an absorbent layer, an adhesive layer that has the same shape as the absorbent layer and expands outward at equal intervals, and a first release layer that is detachably arranged on the adhesive layer. , and a second release layer releasably arranged on the waterproof surface of the sticking layer.

The absorbing layer includes an inner surface and an outer surface on opposite sides, four arc edges connected between the inner surface and the outer surface and connected to each other, and extending away from each other, each arc The shape side has two endpoints, define four auxiliary lines respectively connecting the two endpoints of the arc sides, the auxiliary lines surround and define four airfoil regions with the arc sides respectively, the airfoil At least one of the airfoil regions has a larger area than the rest of the airfoil regions. The sticking layer is arranged on the outer surface of the absorbing layer, and the sticking layer includes an adhesive surface connected to the outer surface of the absorbing layer, and a waterproof surface on the opposite side of the sticking surface. The first release layer is on the same side as the inner surface of the absorbing layer. The second release layer includes two adjacent reinforcing pieces located at the center, and two ends of each reinforcing piece are respectively connected to two arc-shaped sides.

The effect of the present invention is that, by using one of the airfoil areas with a larger area than the other airfoil areas, there are differences in the sticking area and the way of sticking, allowing the user to adjust according to the special wound position or sticking position. The method of sticking, especially through the large-area airfoil area to form targeted support and covering, so that the airfoil area can be attached to wounds of different shapes, and at the same time cooperate with the arc edge arc Design, and there will be no bending or warping caused by reflexed corners, so it can increase the compliance and stability of attaching to irregularly shaped parts or parts with high mobility.

1: Absorbent layer

11: Inner surface

12: Outer surface

13: Arc edge

131: endpoint

14:Central District

15: Airfoil area

151: Feature area

2: Attachment layer

21: Adhesive surface

22: waterproof surface

3: The first release layer

31: The first release area

32: The second release area

321: Reflex

4: The second release layer

41: Reinforcing film

7: wound

81: Nipples

82: areola

L: auxiliary line

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, wherein: Fig. 1 is a three-dimensional exploded view illustrating a first embodiment of the wound care patch of the present invention; Fig. 2 is a Side view, illustrating the structure of the first embodiment; Fig. 3 is a front view, illustrating an implementation of the first embodiment; Fig. 4 is a schematic diagram, illustrating a first release layer of the first embodiment The tear-off mode; Fig. 5 is a rear view, illustrating the tear-off mode of a second release layer of the first embodiment; Fig. 6 is a schematic diagram, illustrating the use state of the first embodiment; Fig. 7 is a A schematic diagram illustrating a second embodiment of the wound care patch of the present invention; and FIG. 8 is a schematic diagram illustrating another implementation of the second embodiment.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same numerals.

Referring to Figures 1 and 2, a first embodiment of the wound care patch of the present invention includes an absorbent layer 1 generally in the shape of an asymmetrical petal, an adhesive layer that has the same shape as the absorbent layer 1 and expands outward at equal intervals 2, and a first release layer 3 and a second release layer 4 which are located on opposite sides and are detachably arranged on the sticking layer 2 .

It should be stated in advance that in this embodiment, a wound 7 (shown in FIG. 6 ) located at an areola 82 after traditional or minimally invasive surgery of mammary tumor removal is used as an example for illustration. In terms of environment, it is taken as an example that the size of the wound 7 is different due to various breast-related operations, or the shape and size of the areola 82 of the user is different. However, this embodiment is not limited to the above-mentioned environment and method of use.

The absorbent layer 1 is specifically a foam dressing, which is not easy to stick and can maintain the integrity of the shape after absorbing exudate, and includes an inner surface 11 and an outer surface 12 on opposite sides, four connections The arc edge 13 is between the inner surface 11 and the outer surface 12 and connects with each other, and extends away from each other. Wherein, the inner surface 11 is the side that directly contacts the human body during use.

Referring to Fig. 3, each arc edge 13 has two endpoints 131, defines four auxiliary lines L respectively connecting the two endpoints 131 of these arc edges 13, these auxiliary lines L are connected with these arc edges respectively 13 surrounds and defines four airfoil areas 15, in these airfoil areas 15 The area of one airfoil region 15 is larger than the area of the other said airfoil regions 15 . It should be noted here that in this embodiment, the airfoil area 15 with a larger area in the airfoil areas 15 is defined as the characteristic area 151, and the airfoil areas in the first embodiment The number of characteristic regions 151 of 15 is illustrated by taking one characteristic region 151 as an example, but the number of characteristic regions 151 of the airfoil regions 15 can also be more than one, which is not limited thereto. The auxiliary lines L circumscribe a central area 14 connected between the airfoil areas 15, that is to say, the airfoil areas 15 are connected around the central area 14, so that the central area 14 and These airfoil regions 15 together constitute the entire absorbing layer 1 (shown in FIG. 1 ), which is generally in the shape of an asymmetrical petal with one protruding petal.

Referring again to Figures 1 and 2, the adhesive layer 2 is arranged on the outer surface 12 of the absorbent layer 1, and includes an adhesive surface 21 connected to the outer surface 12 of the absorbent layer 1, and an adhesive surface on the opposite side of the adhesive surface 21. The waterproof surface 22. In addition to covering the outer surface 12 to position the absorbent layer 1 and the adhesive layer 2 , the adhesive surface 21 extends to an area other than the absorbent layer 1 , that is, it can be used to apply to human skin. The material of the adhesive surface 21 is made of a hypoallergenic pressure-sensitive adhesive, which can effectively reduce possible allergic reactions of human skin. The waterproof surface 22 is made of a polyurethane (PU) material, which is soft and stretchable, and is particularly suitable for preventing external moisture from penetrating into the interior. However, the materials of the waterproof surface 22 and the adhesive surface 21 Not limited by the above. In addition, the waterproof surface 22 and the adhesive surface 21 are designed to be transparent, allowing the user to directly observe the changes of the absorbent layer 1 after absorbing the exudate from the wound 7 (shown in FIG. 6 ) to consider whether it is necessary to replace the second layer. one implementation example.

It should be added that the shape and size of the sticking layer 2 are designed to match the absorbing layer 1. When the absorbing layer 1 chooses a different size according to the actual needs of the user, the sticking layer The size of the area 2 also changes with the scale of the overall area of the absorbing layer 1 . In actual implementation, it is preferred to design the attachment layer 2 in such a way that the diameter of the attachment layer 2 is at least 3 cm larger than the diameter of the absorption layer 1, mainly in order to allow the attachment layer 2 to have a sufficient attachment area to enhance The closeness between the absorbent layer 1 and the wound 7 (shown in FIG. 6 ), and the adhesive force between the adhesive layer 2 and human skin.

Referring to Figures 4 and 5 and in conjunction with Figure 1, the first release layer 3 is on the same side as the inner surface 11 of the absorbent layer 1, and the first release layer 3 is used to temporarily protect the inner surface 11 of the absorbent layer 1 The adhesive surface 21 of the sticking layer 2 is used to prevent the first embodiment from being polluted by foreign objects or bacteria in the external environment before use. The first release layer 3 has a first release area 31 , a corresponding larger airfoil area 15 , and a second release area 32 with an outwardly bent reflex 321 . One end of the first release area 31 for the user to hold is covered above the folded portion 321 and is not connected to the folded portion 321 . The reflex 321 of the second release zone is convenient for the user to fix the reflex 321 with one hand to tear off the first release zone 31, and it can hold the second release zone 32 when only the second release zone 32 is left. Hold the folded part 321 to tear it off. If there is no design of the folded part 321, it will be difficult for the user to tear off the second release area 32 because there is no force application point, and it is easy to touch the absorbent layer 1 and The adhesive surface 21 of the attachment layer 2 causes pollution.

It should be added that the first release layer 3 will be torn off directly during actual use, so the adhesive force between the adhesive surface 21 of the attachment layer 2 and the first release layer 3 must be smaller than that of the attachment layer 2 The adhesive force between the adhesive surface 21 and the waterproof surface 22 of the adhesive layer 2 is to avoid destroying the bonding state between the adhesive surface 21 and the waterproof surface 22 when the first release layer 3 is torn off.

The second release layer 4 is a protective film without glue, and is arranged on the waterproof surface 22 of the attachment layer 2, and includes two reinforcing sheets 41 located at the center and adjacent to each other, and the two reinforcing sheets 41 of each The two ends are respectively connected to two of the arc-shaped sides 13. The reinforcing pieces 41 are mirror-symmetrical and are used to strengthen the overall rigidity of the first embodiment, so as to prevent the first embodiment from being bent by an external force to produce creases before use. In addition, there is a junction between the reinforcing sheets 41, which is convenient for the user to hold the reinforcing sheets 41 and take the second release layer 4 away from the waterproof surface 22 of the adhesive layer 2 in a direction away from each other. .

Referring to Fig. 6 together with Fig. 4 and Fig. 5, the usage of the first embodiment is described. As mentioned above, when describing the first embodiment, it is attached to the traditional or minimally invasive surgery of mammary tumor removal. , the wound 7 located at the lower edge of the areola 82 is taken as an example. The user first tears off the first release area 31 of the first release layer 3 in a direction away from the reflex 321 of the second release area 32, and then aligns the central area 14 of the absorbent layer 1 with the corresponding a nipple 81 and the areola 82, align the characteristic area 151 of the airfoil 15 with the wound 7, and stick the adhesive layer 2 to the skin area other than the wound 7 operation, and then tear off the second release area 32 of the first release layer 3 to stick Stick the first embodiment, and finally tear the second release layer 4 off the waterproof surface 22 of the sticking layer 2 to complete the sticking operation.

In the first embodiment, the airfoil regions 15 have a characteristic region 151 to provide the support strength and coverage required by the irregularly shaped wound 7, so that the wound care patch is not easily affected by external force deformation Lifting off the wound 7, coupled with the arc-shaped design of the arc-shaped sides 13 and the connection between the end points 131 of the arc-shaped sides 13, can increase the density attached to the wound 7. fit, and reduce the above-mentioned conventional knowledge that because the local area of the skin around the wound 7 is too small, it is easy to warp or fall off.

Referring to FIGS. 7 and 8 , it is a second embodiment of the wound care patch of the present invention. The difference from the first embodiment shown in FIG. 6 is that the airfoil regions 15 have two characteristic regions 151 . The feature regions 151 may be located on opposite sides as shown in FIG. 7 , or adjacent to each other as shown in FIG. 8 . It is worth noting that in the preoperative evaluation of traditional or minimally invasive breast tumor removal surgery, the doctor will choose the type of surgery and the location of the incision according to the physical condition of each patient, resulting in the wound of each patient7 There are various differences in shape and location. In particular, the second embodiment can be more flexibly applied to the wound 7 with three-dimensional ups and downs in terms of the sticking area and sticking method by virtue of one more characteristic area 151 . In addition, the difference in the arrangement of the characteristic areas 151 can not only increase the product choices of consumers, but also avoid the need to tailor the conventional shapes, or is extra It is possible to increase the number of attachments of the aforementioned known materials, thereby avoiding waste of materials and reducing the burden on users.

It should be added that the wound care patch of the present invention can also be applied to joints with a high degree of human activity, such as elbow joints, knee joints, and shoulder joints, etc. Here, the elbow joint is taken as an example. When the elbow joint bends, straightens, and rotates internally and externally, the contour of the elbow joint will deform and generate a tensile force, which will cause the wound care patch attached to the elbow joint to be affected. The tensile force is correspondingly stretched or distorted. At this time, the characteristic areas 151 will provide a support force to reduce the impact of the stretching force on the deformation of the wound care patch, and cooperate with the rest of the airfoil area 15 to ensure adhesion to the elbow joint If the relationship is not damaged, the wound care patch can be firmly attached to the elbow joint without falling off or being lifted off.

In summary, the wound care patch of the present invention, through the differential design of the characteristic area 151 with a larger area in the airfoil area 15 of the absorbent layer 1, allows the user to adjust the wound according to the shape or location of the wound 7. It can be attached, and can provide better support and covering properties for the wound 7 of different shapes, so as to prevent the wound care patch from being deformed by external force and affecting the adhesion relationship with the wound site. In addition, with the arc design between the curved sides 13 and the end points 131 of the curved sides 13, the problem of too small area of the adhesive area can be avoided, and the wound care patch of the present invention can be added to the wound 7 and the closeness of the skin around the wound 7 . Therefore, can really reach the purpose of the present invention.

But what is described above is only an embodiment of the present invention, and should not be used as The scope of implementation of the present invention is limited, and all simple equivalent changes and modifications made according to the patent scope of the present invention and the content of the patent specification are still within the scope covered by the patent of the present invention.

1: Absorbent layer

11: Inner surface

12: Outer surface

13: Arc edge

2: Attachment layer

21: Adhesive surface

22: waterproof surface

3: The first release layer

31: The first release area

32: The second release area

321: Reflex

4: The second release layer

41: Reinforcing film

Claims (6)

A wound care patch comprising: an absorbent layer comprising an inner surface and an outer surface on opposite sides, four connected between the inner surface and the outer surface and mutually engaged, and facing away from each other Extended arc sides, each arc side has two end points, define four auxiliary lines respectively connecting the two end points of these arc sides, and these auxiliary lines respectively surround and define four an airfoil area, at least one airfoil area in the airfoil area is larger than the area of the rest of the airfoil area; an adhesive layer, which has the same shape as the absorbent layer and expands outward at equal intervals, and is arranged on the airfoil area; The outer surface of the absorbent layer, the sticking layer includes an adhesive surface connected to the outer surface of the absorbent layer, and a waterproof surface on the opposite side of the adhesive surface; a first release layer, which can be peeled off The sticking layer is located on the same side as the inner surface of the absorbing layer; and a second release layer is tearably arranged on the waterproof surface of the sticking layer, and the second release layer includes two centrally located And adjacent reinforcing pieces, the two ends of each reinforcing piece are respectively connected to two arc-shaped sides. The wound care patch according to claim 1, wherein the arc-shaped sides are connected by an arc. The wound care patch as claimed in claim 1, wherein the auxiliary lines surround and define a central area connected between the airfoil areas. The wound care patch as claimed in claim 1, wherein the first release layer has a first release zone, and a second reflex with an outward bend Release zone. The wound care patch according to claim 1, wherein the airfoil region with a larger area among the airfoil regions is defined as a characteristic region, and the airfoil regions have two characteristic regions. The wound care patch as claimed in claim 5, wherein the feature areas are respectively located on opposite sides, or adjacent to each other.

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