JP2008259629A - Wound protective material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an easy-to-manufacture wound protective material excellent in stretchability and flexibility. <P>SOLUTION: The wound protective material 11 comprises: a base material sheet 14 provided with a skin contact surface 12 and a non skin contact surface 13 and having stretchability in at least one direction; an adhesive layer 15 2 which is provided on the skin contact surface 12 of the base material sheet 14; and a pad material 16 attached to a part of the skin contact surface 12 of the base material sheet 14 through the adhesive layer 15 and abuts on a lesion site. On the pad material 16, a cut part 17 in a direction crossing the stretching direction of the base material sheet 14 is formed from one edge part in the pad material 16 to the other opposing edge part. Since the pad material 16 can be stretched and divided due to the stretch of the base material sheet 14 by the cut part 17, the stretchability and flexibility of the wound protective material 11 are improved. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a wound protection material for covering and protecting a wound part.

  Conventionally, a wound protection material protects a wound by covering the wound, and absorbs exudate such as blood and pus, and is used as an auxiliary material for the treatment of the wound.

  Such a wound protection material is composed of a pad material that contacts and covers the wound part, a base sheet for supporting the pad material, and an adhesive layer provided on the base sheet. In use, the adhesive layer is adhered to the skin surface of the wearer, so that the wound protection material is held in the entire wound part.

  Here, there are irregularities on the body surface, and moreover, for example, joints such as fingers, elbows, knees, etc. are repeatedly bent, so the attached wound protection material is easy to peel off, such a part In order to attach the scratch protection material to the surface, it is necessary to improve the stretchability and flexibility of the scratch protection material so as to adapt to the bending motion.

And a base material sheet formed of a pad material having absorbability, a foam or fabric support that is excellent in elasticity and flexibility, and can be adapted to the skin of the wearer; and biocompatible and on the wearer's skin A scratch protection material with improved stretchability and flexibility by forming a scratch protection material from an adhesive layer formed of a pressure-sensitive adhesive that can be adapted is known (see, for example, Patent Document 1). )
JP-A-8-38543 (Page 3, FIG. 1)

  However, in the above-described scratch protection material of Patent Document 1, the base sheet and the adhesive layer have good stretchability and flexibility, but the pad material hardly stretches, so it cannot be adapted to, for example, a bending motion of a joint, As a result, even the portion of the base sheet near the pad material cannot be adapted to the bending motion.

  Therefore, in order for the scratch protection material to adapt to the bending motion, it is necessary to improve the stretchability and flexibility of the pad material. Since the material provided with is limited, and the configuration of the pad material is also limited accordingly, the manufacture is not easy.

  The present invention has been made in view of these points, and an object thereof is to provide a scratch protection material that has good stretchability and flexibility and is easy to manufacture.

The invention described in claim 1 includes a base sheet having a skin contact surface and a non-skin contact surface and having elasticity in at least one direction, and an adhesive layer provided on the skin contact surface of the base sheet. And a pad material that is bonded to a part of the skin contact surface of the base sheet through the adhesive layer and is brought into contact with the wound portion. The pad material includes one of the pad materials. It is the wound protection material in which the notch part of the expansion-contraction direction and cross direction of the said base material sheet was formed over the other edge part which opposes from an edge part.

  The invention described in claim 2 is the scratch protection material according to claim 1, wherein a plurality of the incisions are formed from one edge of the pad material to the other edge opposite to each other. One of them extends in a direction different from that of the other cut portions.

  According to a third aspect of the present invention, in the flaw protection material according to the first or second aspect, the cut portion is formed through the pad material in the cross-sectional direction.

  According to a fourth aspect of the present invention, in the flaw protection material according to any one of the first to third aspects, the notch portion forms a groove portion having a predetermined width, and the pad material passes through the groove portion. It is composed of small pads that are spaced apart.

  According to the invention described in claim 1, the pad material is formed with the cut portion in the direction intersecting with the expansion / contraction direction of the base material sheet, so that the pad material is cut along with the extension of the base material sheet. Since it can be stretched and divided by the insertion portion, the stretchability and flexibility of the scratch protection material can be improved.

  Furthermore, since it can comprise by providing the said notch part in a pad material, there is no limitation of a raw material or a structure, and manufacture is easy.

  Further, in the state where the scratch protection material is extended and the pad material is divided by the cut portion, the exudate is transmitted to the entire pad material by the cut portion, so that the exudate can be absorbed efficiently. .

  According to the invention described in claim 2, a plurality of cut portions are formed in the pad material, and any of these cut portions extends in different directions, so that the base sheet is stretched. Since the pad material can be extended and divided in a plurality of directions by the cut portion, the stretchability and flexibility of the scratch protection material can be further improved.

  Further, in the state where the scratch protection material is extended and the pad material is divided by the cut portion, the exudate is transmitted to the entire pad material by the cut portion, and thus the exudate can be efficiently absorbed. .

  According to the invention described in claim 3, the pad material extends more smoothly by the notch portion as the base sheet is stretched by forming the notch portion through the pad material in the cross-sectional direction. Since it can be divided, the stretchability and flexibility of the scratch protection material can be further improved.

  Further, in the state where the scratch protection material is extended and the pad material is divided by the cut portion, the exudate is transmitted to the entire pad material by the cut portion, and thus the exudate can be efficiently absorbed. .

  According to the invention described in claim 4, the notch part forms a groove part, and the pad material is constituted by the small pads that are spaced apart through the groove part. Since the pad material can be smoothly extended in a plurality of directions by the groove portion, the stretchability and flexibility of the scratch protection material can be further improved.

  Furthermore, even if the base sheet and the pad material are in an unstretched state, the exudate is transmitted to the entire pad material by the groove portion, so that the exudate can be efficiently absorbed.

  Hereinafter, the configuration of the first embodiment of the present invention will be described in detail with reference to FIG. 1 or FIG.

  As shown in FIGS. 1 (a) and 1 (b), the wound protector 11 is, for example, an emergency bandage, which is protected by covering the wound by sticking it to a wound part such as a cut or an abrasion. Used as an auxiliary material.

  And this wound protection material 11 is provided on the non-skin contact surface 13 of the base sheet 14 having a skin contact surface 12 and a non-skin contact surface 13 and having elasticity in at least one direction. The adhesive layer 15 and the pad material 16 that is bonded to a part of the non-skin contact surface 13 of the base sheet 14 via the adhesive layer 15 and is in contact with the wound part are formed in layers. Yes.

  The material of the base sheet 14 is not limited as long as it has stretchability and flexibility, and can be appropriately selected according to the intended use, for example, a synthetic resin film, a woven fabric sheet, a non-woven fabric sheet, etc. However, a laminated sheet made of different materials may be used.

  In order to improve the air permeability of the base sheet 14, it is preferable that the base sheet 14 is provided with a plurality of fine holes.

  The thickness dimension of the base sheet 14 is not limited. However, when the thickness dimension is less than 0.01 mm, the strength of the base sheet 14 is lowered and is easily damaged when stretched, and the thickness dimension is 0.1 mm. If it exceeds 1, the stretchability and flexibility of the base sheet 14 may be lowered. Therefore, the thickness dimension of the base sheet 14 is preferably 0.01 to 0.1 mm.

  Further, the shape of the base sheet 14 is not limited, but a substantially rectangular shape is preferable because the operability when wearing the scratch protection material 11 is good.

  The adhesive layer 15 is formed by applying an adhesive to substantially the entire surface of the skin contact surface 12 of the base sheet 14, and adheres the base sheet 14 and the pad material 16, and when the wound protection material 11 is worn, The wound protector 11 is held around the wound part.

  Here, the adhesive provided on the adhesive layer 15 is not limited as long as it does not exhibit toxicity or irritation to the skin. For example, an adhesive such as rubber, acrylic or silicon is appropriately selected. it can.

  The pad material 16 is smaller than the size of the base material sheet 14, and is adhered to the base material sheet 14 by the adhesive layer 15. When the wound protection material 11 is worn, the pad material 16 comes into contact with the wound portion and exudes blood, pus, etc. Absorb fluid and assist in treatment.

  The placement position of the pad material 16 is not limited, but if it is disposed at a substantially central portion on the skin contact surface 12 of the base sheet 14, the operability of the wound protection material 11 and the adhesive strength to the skin of the wearer are good. It is preferable.

  Further, the shape of the pad material 16 is not limited, and for example, a rectangular shape, a circular shape, an elliptical shape, or the like can be appropriately selected in a plan view.

  The material of the pad material 16 is not limited as long as it has the required absorbency, and can be appropriately selected from, for example, gauze, absorbent cotton, nonwoven fabric, etc., and further formed by combining these gauze, absorbent cotton, nonwoven fabric, etc. May be.

  Note that the pad material 16 does not need to have stretchability, but if formed of a stretchable material, the pad material 16 itself can be stretched along with the stretching of the base sheet 14, and the stretchability of the scratch protection material 11 and Flexibility can be further improved.

  Further, when a net or a perforated film such as polyethylene or nylon is disposed on the surface of the pad material 16, it is preferable that the pad material 16 is easily peeled off from the wound part when the wound protection material 11 is peeled off after use.

  The pad material 16 extends from one edge of the pad material 16 to the other opposite edge, that is, along the width direction of the rectangular pad material 16 in FIG. As shown in FIGS. 2 (a) and 2 (b), the pad material 16 is formed along with the extension of the base sheet 14. Can be stretched and divided by the notch portion 17, the portion of the base sheet 14 on which the pad material 16 is disposed can also be stretched.

  The notch 17 is not limited to being formed in the width direction of the rectangular pad material 16, and may be formed from one edge of the pad material 16 to the other edge facing the pad material 16. Further, the shape of the cut portion 16 is not limited, and may be formed in a continuous linear shape, but may be formed in an intermittent linear shape or a curved shape.

  Further, it is preferable that the cut portion 17 is formed so as to penetrate the pad material 16 in the cross-sectional direction because the pad material 16 can be smoothly stretched and divided by the cut portion 17 as the base sheet 14 is stretched. It is not limited to being formed through, but may be non-through. When the non-penetrating cut portion 17 is formed, the cut portion 17 may be formed on either the skin contact side of the pad material 16 or the contact side with the base sheet 14.

  Next, the operation of the first embodiment will be described.

  When wearing the wound protector 11, the pad material 16 is brought into contact with the wound part, and the adhesive layer 15 provided on the skin contact surface 12 of the base sheet 14 is attached to the skin of the wound part, The attachment position of the scratch protection material 11 is maintained. In addition, since the adhesive layer 15 and the pad material 16 provided on the skin contact surface 12 of the base material sheet 14 are covered with the release paper, the scratch protection material 11 before use is peeled off from the release paper. 11 is pasted.

  And, in the wound protective material 11 in a state of being attached to the entire wound part, the base sheet 14 of the wound protective material 11 and the attached position is a part that is repeatedly bent and moved like a joint part, for example. Since the adhesive layer 15 can be stretched, it can be adapted to bending motion, but the pad material 16 cannot be stretched, and the portion of the base sheet 14 where the pad material 16 is disposed cannot be stretched. It cannot adapt to the bending motion, and the wound protection material 11 is easily peeled off.

  Therefore, by forming a notch 17 in the direction of expansion and contraction of the base sheet 14 from one edge of the pad material 16 of the scratch protection material 11 to the other opposite edge, the base sheet 14 As the pad material 16 can be stretched and divided by the cut portion 17 along with the stretching, the stretchability and flexibility of the wound protection material 11 can be improved, and for example, it can be adapted to a bending motion of a joint portion or the like.

  Further, since the pad material 16 can be configured by providing the notch portion 17, there is no limitation on the material and configuration, and the manufacture is easy.

  The cut portion 17 may be formed through or non-penetrated with respect to the cross-sectional direction of the pad material 16, and when the non-penetrated cut portion 17 is formed, the pad material 16 The cut portion 17 may be formed on either the skin contact side or the contact side with the base material sheet 14, and if the cut portion 17 is formed on the base material sheet 14 side of the pad material 16, the scratch protection material 11 It is preferable because it is possible to prevent a sense of incongruity due to the cut portion 17 when worn, and to make the cut portion 17 inconspicuous.

  Further, when the notch 17 is formed by penetrating the pad material 16 in the cross-sectional direction, the pad material 16 can be stretched and divided more smoothly by the notch 17 as the base material sheet 14 is stretched. The elasticity and flexibility can be further improved.

  Next, a second embodiment will be described with reference to FIG. In addition, about the structure and effect | action similar to said embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  As shown in FIG. 3, two incisions 17 are provided in the extending direction and the crossing direction of the base sheet 14 from one edge of the pad material 16 to the other edge facing each other. That is, two cut portions 17 are formed in the width direction of the rectangular pad material 16.

  In this way, by providing the two notches 17, the pad material 16 can be stretched and divided at two places by the notches 17, and accordingly, the stretchability and flexibility of the wound protection material 11 are further improved. it can.

  Note that the position where the cut portion 17 is formed is not limited to the width direction of the rectangular pad material 16, and may be from the one edge portion of the pad material 16 to the opposite edge portion. Moreover, if the number of the cutting parts 17 is also plural, it will not be limited.

  Next, a third embodiment will be described with reference to FIG. In addition, about the structure and effect | action similar to said embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  As shown in FIG. 4, the cut portion 17 does not penetrate the pad material 16 in the cross-sectional direction, and the cross-sectional shape of the cut portion 17 is formed in a substantially V shape on the skin contact side of the pad material 16. ing.

  Thus, since the pad material 16 can be extended by forming the cut portion 17 in a substantially V-shape, the stretchability and flexibility of the wound protection material 11 can be improved, and the wound portion having a curved surface The degree of adhesion of the pad material 16 to the can be improved.

  Next, a fourth embodiment will be described with reference to FIG. In addition, about the structure and effect | action similar to said embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  As shown in FIG. 5 (a), a plurality of cut portions 17 are formed from one edge portion to the other opposite edge portion, and any one of these cut portions 17 is formed on the other cut portion 17. They are formed so as to be orthogonal to each other. That is, a plurality of the cut portions 17 are formed from one edge portion in the longitudinal direction and the width direction in the substantially rectangular pad material 16 to the other edge portion facing each other. Go straight.

  In this way, by forming the orthogonal cut portions 17, the pad material 16 is stretched in two directions by the cut portions 17 as the base sheet 14 is stretched, as shown in FIG. 5 (b). Further, since it can be divided, the stretchability and flexibility of the scratch protection material 11 can be further improved.

  Further, the position at which the cut portion 17 is formed is not limited, but any one of the plurality of cut portions 17 is formed from one edge in the longitudinal direction of the pad material 16 in the substantially rectangular pad material 16. If the notch 17 is formed so that the pad material 16 is symmetrical and formed over the other opposing edge, it will be stretched and divided by the notch 17 when the wound protection material 11 is stretched. Since the pad material 16 is well balanced, the pad material 16 is easily stretched and divided, and since the exudate is transmitted to the entire pad material 16 by the cut portions 17, the exudate can be efficiently absorbed.

  Next, a fifth embodiment will be described with reference to FIG. In addition, about the structure and effect | action similar to said embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  As shown in FIG. 6, in the substantially rectangular pad material 16, a plurality of cut portions 17 intersecting each other from one edge portion to the other edge portion facing each other are formed in the longitudinal direction and width of the pad material 16. It is formed obliquely with respect to the direction. That is, a plurality of cut portions 17 that intersect with each other are formed along diagonal lines in the rectangular pad material 16.

  In this way, the plurality of cut portions 17 are formed obliquely with respect to the longitudinal direction and the width direction of the pad material 16 so as to intersect with each other, so that the pad material 16 extends in four directions by the cut portions 17. Further, since it can be divided, the stretchability and flexibility of the scratch protection material 11 can be further improved.

  Further, the position where the notch 17 is formed is not limited, but a plurality of notches 17 intersecting each other along the diagonal line of the substantially rectangular pad material 16 so that the pad material 16 is symmetric. By forming the wound protection material 11 and the pad material 16 is divided by the cut portion 17, the exudate is transmitted to the entire pad material 16 by the cut portion 17, so that the exudate is efficiently used. It is preferable because it can be absorbed.

  Next, a sixth embodiment will be described with reference to FIG. In addition, about the structure and effect | action similar to said embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  As shown in FIG. 7, in the rectangular pad material 16, at least a part of the cut portion 17 extends from one edge in the longitudinal direction and the width direction of the pad material 16 to the other edge. A plurality of cut portions 17 are formed so as to be orthogonal to the cut portions 17, and a plurality of cut portions 17 intersecting each other are formed obliquely with respect to the longitudinal direction and the width direction of the pad material 16. That is, the cut portions 17 are provided along the diagonal lines in the rectangular pad material 16.

  In this way, the cut portions 17 extending in a plurality of directions are formed, so that the pad material 16 can be stretched and divided in various directions by the cut portions 17 as the base sheet 14 is stretched. The stretchability and flexibility of the material 11 can be further improved.

  Next, a seventh embodiment will be described with reference to FIG. In addition, about the structure and effect | action similar to said embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  As shown in FIG. 8, a groove 18 as a cut portion having a predetermined width is formed when the scratch protection material 11 is in an unstretched state, and a pad material 16 is formed by small pads 19 that are spaced apart through the groove 18. Is formed.

  Here, the shape of the small pad 19 is not limited to, for example, a rectangular shape as shown in FIG. 8A or a circular shape as shown in FIG. The number of small pads 19 is not limited.

  Further, the width dimension of the groove portion 18 is not limited, and the widths of all the groove portions 18 may not be constant.

  In this way, the pad material 16 is formed by the small pads 19 that are separated from each other via the groove portion 18, so that the pad material 16 can be smoothly extended in multiple directions by the groove portion 18, and the stretchability of the wound protection material 11 And flexibility can be improved.

  Furthermore, even if the scratch protection material 11 is in a non-expanded state, the exudate is transmitted to the entire pad material 16 by the groove portion 18, and thus the exudate can be efficiently absorbed.

  INDUSTRIAL APPLICABILITY The present invention can be used as a wound protection material used as an auxiliary material for wound treatment.

(A) is a top view which shows the wound protection material of the 1st Embodiment of this invention, (b) is sectional drawing which shows the said wound protection material. (A) is a top view which shows the expansion | extension state of the same wound protection material, (b) is sectional drawing which shows the expansion | extension state of the same wound protection material. It is a top view which shows the wound protection material of the 2nd Embodiment of this invention. It is sectional drawing which shows the wound protection material of the 3rd Embodiment of this invention. (A) is a top view which shows the wound protection material of the 4th Embodiment of this invention, (b) is a top view which shows the expansion | extension state of the said wound protection material. It is a top view which shows the wound protection material of the 5th Embodiment of this invention. It is a top view which shows the wound protection material of the 6th Embodiment of this invention. (A) is a top view which shows the wound protection material of the 7th Embodiment of this invention, (b) is a top view which shows the difference in the shape of the pad material of the said wound protection material.

Explanation of symbols

11 Scratch protection material
12 Skin contact surface
13 Non-skin contact surface
14 Base sheet
15 Adhesive layer
16 Pad material
17 notch
18 Groove
19 Small pad

Claims (4)

A base sheet having a skin contact surface and a non-skin contact surface and having elasticity in at least one direction;
An adhesive layer provided on the skin contact surface of the base sheet;
A pad material that is adhered to a part of the skin contact surface of the base sheet through the adhesive layer and is in contact with the wound part;
For the pad material,
A wound protecting material, wherein a cut portion in the direction intersecting with the expansion / contraction direction of the base sheet is formed from one edge of the pad material to the other edge facing the pad material. The notch is
A plurality of pad materials are formed from one edge to the other opposite edge,
Either of these cut | notch parts is extended in the direction different from another cut | notch part. The wound protection material of Claim 1 characterized by the above-mentioned. The notch is
The wound protection material according to claim 1, wherein the scratch protection material is formed so as to penetrate the pad material in a cross-sectional direction. The cut portion forms a groove portion having a predetermined width,
The pad material is
The wound protection material according to any one of claims 1 to 3, wherein each of the wound protection materials is constituted by small pads separated by a groove portion.

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