JP2011125397A - Wound covering material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sanitary wound covering material permitting visual confirmation of a wound and change of a wound pad while retaining the wound in a wet state suitable for treatment without damaging the wound, and permitting visual observation of the wound. <P>SOLUTION: The wound covering material includes a film member 2a which retains the wound in a wet state and can be permeated by part of exudate, and an absorbent pad member 3a layered on the film member for absorbing the exudate. The film member includes a film part which can be permeated by the exudate excluding the outer peripheral edge and which is composed of a transparent or translucent material, and a first adhesive part 12 which is disposed on the whole outer peripheral edge of the lower surface of the film part and which can bond the film part to the skin around the wound. The absorbent pad member includes a pad part 21 for absorbing the exudate, a covering part 22a for covering the pad part, and a second adhesive part 23 which can be bonded to the film part. The bonding strength between the second adhesive part and the film part is lower than the bonding strength between the first adhesive part and the skin. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a wound dressing for protecting and moisturizing wounds.

  Conventionally, a method of directly covering a wound part with a wound dressing material such as adhesive bandage or gauze has been used for protecting and treating the wound part. However, in this method, the exudate is absorbed by the covering material, and the wound part is dried, so that it is not suitable for healing. In addition, the wound part and the covering material may stick to each other due to the exudate or blood, and when the covering material is peeled off, the wound part may be damaged and severe pain may be caused.

  On the other hand, there is a method called wet therapy for keeping the wound in a wet state. The wet therapy is not a conventional method for keeping the wound part dry, but a method for regenerating the wound part by keeping it wet. In this method, it is required to keep the wound part as moist as possible and to keep it moist.

  One of the folk remedies that practice wet therapy is called wrap therapy. In wrap therapy, a wound is kept moist by covering the damaged part with a food wrap. Since this therapy does not stick to the wound part even when it is exchanged, the wound part is rarely damaged. However, in the wrap therapy, when the wrap is applied to the wound portion, the exudate leaks out, or the wrap itself is displaced or swung to prevent the wet state from being maintained. Furthermore, if the wraps are not changed frequently, a bad odor will be generated from the leachate.

  In recent years, a therapy applying wrap therapy called open-type wet dressing therapy has been proposed. In this method, instead of wrapping, a dressing material in which a paper diaper of an appropriate size is put in a perforated polyethylene bag is applied to the wound part, and the wound part is covered with a paper diaper. In this therapy, excess leachate can be absorbed into the paper diaper through the holes in the polyethylene bag to prevent leakage. However, when changing the dressing material, the leachate is removed to replace the entire dressing material, preventing the wet state from being maintained. In addition, when the wound dressing material is exchanged or the healing state of the wound portion is visually confirmed, it is not easy because the paper diaper must be removed and the dressing material removed. Furthermore, this therapy lacks versatility because its use is limited to pressure ulcer treatment.

  Examples of wound dressings or wound care products are disclosed in Patent Documents 1 and 2. The wound dressing described in Patent Document 1 is obtained by laminating a substrate and a wound pad removable from the substrate. The substrate is provided with an opening through which the leachate passes. Moreover, the slit is provided in the board | substrate so that a part of board | substrate can be turned over when visually confirming the healing condition of a wound part. The wound pad is detachably formed on the substrate, and excess exudate passes through an opening provided in the substrate and is absorbed by the wound pad. With such a configuration, when the wound pad is replaced, the substrate is not peeled off, so that damage to the wound portion is small.

  In the wound dressing described in Patent Document 2, a surface sheet provided with a plurality of holes and an intermediate sheet are laminated, and a liquid-absorbent sheet is disposed on the intermediate sheet. With this configuration, excess leachate passes through the top sheet and the intermediate sheet and is absorbed by the absorbent sheet.

Japanese Patent Laid-Open No. 07-163616 JP 2008-113952 A

  However, when the wound covering material described in Patent Document 1 visually confirms the healing state of the wound part, it is necessary to turn a part of the substrate in contact with the wound part. . Moreover, when turning a part of a board | substrate, there exists a possibility that a finger may touch a wound part and the problem on hygiene also arises.

  In addition, the wound dressing described in Patent Document 2 has to peel off the surface sheet when replacing the wound dressing or visually confirming the healing status of the wound, and the wound and surrounding skin. There is a problem that treatment is delayed due to damage to the tissue. Furthermore, since the entire wound dressing is replaced at the time of replacement, there is a problem that the exudate is removed and the wet state is prevented.

  The present invention has been made to solve the above-mentioned problems. The wound part is kept in a moist state suitable for healing, and visual confirmation and wound pad replacement are possible without damaging the wound part. It aims at providing the wound dressing which is.

  In order to solve the above-described problem, the wound dressing of the present invention holds the wound part in a wet state by the exudate from the wound part, and allows the film member to transmit a part of the exudate and the film member. An absorbent pad member that absorbs the leachate that has been laminated and that has passed through the film member, and the film member is capable of transmitting the leachate except for an outer peripheral edge, and is formed of a transparent or translucent material. And a first adhesive part that is disposed around the outer peripheral edge of the lower surface of the film part and can adhere the film part and the skin around the wound part, and the absorbent pad member includes the exudate A pad portion that absorbs the pad portion, a covering portion that covers the pad portion, and a second adhesive portion that is disposed so as to surround the pad portion around the outer peripheral edge of the lower surface of the covering portion and can be bonded to the film portion The have the than the adhesive strength between said skin first adhesive portion, the adhesive strength between the said film portion and the second adhesive portion is characterized by being configured to be lower.

  According to the present invention, the structure having the transparent film part and the pad part removable from the film part does not damage the wound part and keeps the wound part in a wet state suitable for healing. However, it is possible to provide a wound dressing that allows visual confirmation and replacement of the wound pad.

The perspective view which shows the structure of the wound dressing which concerns on Embodiment 1 of this invention. Sectional drawing along the AA line of FIG. The bottom view which shows the structure of the film part which concerns on Embodiment 1 of this invention. Sectional drawing which shows the structure of the wound dressing which concerns on Embodiment 2 of this invention. The perspective view which shows the structure of the test piece of the wound dressing which concerns on Embodiment 1 of this invention. The top view which shows the structure of the film part of this invention

  The wound dressing of the present invention can take the following various modes based on the above-described configuration. That is, in the wound dressing, the region excluding the outer peripheral extension of the film portion may be composed of a porous member.

  Moreover, the part which has adhere | attached with the said 1st adhesion part of the said film part can be set as the structure which has water-impermeable. With this configuration, it is possible to suppress a decrease in the adhesiveness of the first adhesive portion.

  In addition, the first adhesive portion may be hydrophobic, and the lower surface of the film portion may be hydrophobic. With this configuration, the exudate can be prevented from leaking from the wound dressing material, the exudate can be retained, and the wound portion can be retained in a wet state.

  The film member preferably has a wider configuration than the absorbent pad member. Thereby, when removing an absorption pad member, it can suppress that a film member also peels from skin simultaneously.

  Moreover, the said film member can be set as the structure which has the hydrophobic 1st rib arrange | positioned over the perimeter in the inner side vicinity of the said 1st adhesion part arrange | positioned in the lower surface whole periphery of the said coating | coated part. . With this configuration, the first adhesive portion and the leaching solution do not come into contact with each other, and hence it is possible to suppress a decrease in the adhesive force of the first adhesive portion.

  Moreover, the part which has adhere | attached with the said 2nd adhesion part of the said film part can be set as the structure which has water-impermeable. With this configuration, the leachate can reach the portion of the film portion that is bonded to the second adhesive portion, and the decrease in the adhesive force of the second adhesive portion can be suppressed.

  Further, the second adhesive part may be hydrophobic and the covering part may be hydrophobic. With this configuration, the exudate can be prevented from leaking from the wound dressing.

(Embodiment 1)
FIG. 1 is a perspective view showing the configuration of a wound dressing 1a according to Embodiment 1 of the present invention. FIG. 2 is a cross-sectional view of the wound dressing 1a along the line AA in FIG. The wound dressing 1a is configured by detachably laminating an absorbent pad member 3a on a film member 2a.

  The film member 2 a is composed of a film part 11 and a first adhesive part 12. At least the lower surface of the film portion 11 is made of a hydrophobic material, and the first adhesive portion 12 is disposed on the lower surface. A wet holding region 13 is defined by being surrounded by the film portion 11 and the first adhesive portion 12.

  FIG. 3 is a bottom view showing the configuration of the film part 11. The film part 11 has the water permeable part 14 and the non-water permeable part 15, and is comprised with the transparent or translucent film. The water permeable part 14 is formed in the center area | region of the film part 11, and is comprised with the material which permeate | transmits the exudate which exuded from the wound part moderately. As the water permeable part 14, for example, a porous material used as a dialysis membrane or a member provided with a through hole in a non-water permeable film can be used. The non-water-permeable part 15 is formed over the outer periphery of the water-permeable part 14 of the film part 11, and is comprised with the water-impermeable material.

  The film part 11 is manufactured by, for example, pressing or heating the peripheral area of the porous film to crush the hole to form the water impermeable part 15.

  The first adhesive portion 12 is disposed on the lower surface of the film portion 11. The first adhesive portion 12 is bonded to the water impermeable portion 15. With this configuration, it is possible to prevent the leaching liquid from passing through the inside of the film part 11 and coming into contact with the contact surface of the first adhesive part 12 with the film part 11, thereby reducing the adhesive force.

  Further, the first adhesive portion 12 is arranged over the entire lower surface of the film portion 11. Furthermore, the 1st adhesion part 12 is processed so that a side surface may become hydrophobic. With this configuration, the exudate can be held in the wet holding region 13 between the skin and the film part 11. Further, the first adhesive portion 12 maintains sufficient adhesion with the skin around the wound portion to prevent the exudate leached from the wound portion from leaking outside the wound dressing 1a. It has the necessary adhesive strength and adhesive area.

  The absorbent pad member 3a is disposed around the outer periphery of the lower surface of the covering portion 22a so as to surround the pad portion 21 and the pad portion 21a disposed on the pad portion 21. The second adhesive portion 23 is provided. The absorbent pad member 3 a is wider than at least the water permeable portion 14 of the film portion 11 and is formed within a size within the region of the film portion 11. With this configuration, when the absorbent pad member 3a is peeled off, only the absorbent pad member 3a is easily peeled while the film member 2a is adhered to the skin.

  The pad portion 21 is disposed at a position in contact with the upper surface of the water permeable portion 14. The pad portion 21 has a region that is the same as or wider than the region where the water permeable portion 14 is formed. If the pad portion 21 is wide, the possibility that the second adhesive portion 23 is disposed on the water permeable portion 14 when the absorbent pad member 3a is pasted can be reduced. For this reason, it can prevent that the adhesive force of the 2nd adhesion part 23 falls when a leaching liquid touches the 2nd adhesion part 23. FIG. The covering portion 22a is made of a hydrophobic material so that the exudate absorbed by the pad portion 21 does not leak from the wound dressing 1a.

  The second adhesive part 23 is bonded to the non-permeable part 15 of the film part 11. Furthermore, the 2nd adhesion part 23 is processed so that a side surface may become hydrophobic. With this configuration, the leachate absorbed by the pad portion 21 can be prevented from leaking from the wound dressing 1a.

  In addition, the second adhesive portion 23 has an adhesive strength and an adhesive required to ensure sufficient adhesion to prevent the leachate from leaking out of the wound dressing 1a between the second adhesive portion 23 and the upper surface of the film portion 11. Has an area. Furthermore, the material, shape, and size of the second adhesive portion 23 are adjusted so that the adhesive strength with the film portion 11 is lower than the adhesive strength between the first adhesive portion 12 and the skin. The second adhesive part 23 is made of a material that can be repeatedly attached to the film part 11.

  Next, the usage method of the wound dressing 1a is demonstrated. The wound dressing 1a is affixed to the wound part, and the wound part is visually checked and the absorbent pad member 3a is exchanged in a state of being attached.

  First, the case where the wound dressing 1a is affixed to a wound part is demonstrated. The 1st adhesion part 12 surrounds a wound part, and the wound dressing 1a is affixed on a wound part so that the 1st adhesion part 12 may not touch a wound part directly. Since the exudate leached from the wound portion is filled in the wet holding region 13, the wound portion can be held in a wet state. Since the wet holding region 13 is covered with the first adhesive portion 12 and the film portion 11, the exudate does not leak out of the wound dressing 1a.

  Excess leachate passes through the film part 11 and is absorbed and held by the pad part 21. Since the absorbed exudate is covered with the second adhesive part 23 having hydrophobicity and sealing property and the covering part 22a having hydrophobicity, it does not leak out of the wound dressing exterior 1a.

  Next, the case where the absorption pad member 3a is peeled off and the healing state of the wound part is visually confirmed will be described. When the absorbent pad member 3a is peeled off, the adhesive strength between the second adhesive portion 23 and the film portion 11 is lower than the adhesive strength between the first adhesive portion 12 and the skin, so that the film member 2a peels off from the skin. Absent. For this reason, a wound part can be kept in a moist state, without damaging a wound part. When the absorbent pad member 3a is peeled off, the film part 11 is transparent or translucent, so that the healing state of the wound part can be directly visually confirmed.

  After the visual confirmation, the absorbent pad member 3a is again attached to the film member 2a. At this time, the absorbent pad member 3a is attached to the film member 2a so that the pad portion 21 covers the water permeable portion 14 of the film portion 11.

  Next, a case where the absorbent pad member 3a is replaced will be described. When the absorbent pad member 3a is saturated with the leaching solution, or when a malodor occurs due to the leaching solution, the absorbent pad member 3a can be peeled off from the film member 2a and replaced with a new absorbent pad member 3a. Since the film member 2a does not peel from the skin when the absorbent pad member 3a is peeled off, the wound part is not damaged. Furthermore, since the state which covered the wound part with the film member 2a is maintained, the wound part is kept in the moist state.

  As described above, since the wound dressing 1a according to the present embodiment keeps the damaged part in a wet state suitable for healing, the wound part is not damaged. In addition, visual inspection of the damaged part and replacement of the wound pad can be performed without peeling off the film part in contact with the damaged part, and the hygroscopic condition is maintained in a hygienic state without irritating the wound part. It can be carried out.

  Moreover, in this Embodiment, although the coating | coated part 22a and the 2nd adhesion part 23 showed the example comprised by a separate structural member, what was integrated can also be used. Furthermore, what integrated the coating | coated part 22a, the 2nd adhesion part 23, and the pad part 21 can also be used.

(Embodiment 2)
FIG. 4 is a cross-sectional view showing a configuration of a wound dressing 1b according to Embodiment 2 of the present invention. The wound dressing 1b is configured by laminating an absorbent pad member 3b on a film member 2b. The absorbent pad member 3b is formed to be removable from the film member 2b. In addition, in the wound dressing 1b which concerns on this Embodiment, about the component similar to the wound dressing 1a which concerns on Embodiment 1, the same code | symbol is attached | subjected and description is abbreviate | omitted.

The film member 2b includes a film part 11, a first adhesive part 12, a wet holding area 13,
The first rib 16 is hydrophobic. The first rib 16 is made of a hydrophobic material, and the first adhesive of the wet holding region 13 is prevented so that the exudate held in the wet holding region 13 does not come into contact with the first adhesive portion 12 and the adhesive force is not lowered. It is arranged near the boundary with the part 12. If it is the structure by which the 1st rib 16 is arrange | positioned, the 1st adhesion part 12 does not necessarily need to have hydrophobicity.

  The absorbent pad member 3b includes a pad portion 21, a covering portion 22b, and a second rib 24. The covering portion 22b is made of a hydrophobic material, and the lower surface is made of an adhesive material. That is, the covering portion 22a and the second adhesive portion 23 in the first embodiment are integrated. By using the covering portion 22b, the number of parts can be reduced, and the number of manufacturing steps can be reduced.

  The second rib 24 comes into contact with the covering portion 22b in the region where the leachate held by the pad portion 21 adheres to the film portion 11, so that the adhesive force between the covering portion 22b and the film portion 11 does not decrease. Has been placed.

  Even in the configuration of the wound dressing according to the present embodiment as described above, as in the first embodiment, the damaged portion is kept in a wet state suitable for healing, and further, the wound portion is not damaged. Have. In addition, the visual check of the damaged part and the replacement of the wound pad can be performed without peeling off the film member 2b in contact with the damaged part. The damaged part is not stimulated and is maintained in a wet state and is hygienic. It has the effect that it can be performed.

  Furthermore, the wound dressing according to the present embodiment is arranged such that the first rib 16 and the second rib 24 are disposed, whereby the first adhesive portion 12 and the covering portion 22b are bonded to each other by contact with the exudate. It can prevent power loss.

  In the first and second embodiments, the water permeable part 14 of the film part 11 is made of a porous material, or an example in which a plurality of holes are provided. Any configuration may be used as long as the wet holding region 13 can maintain a wet state. For example, the water permeable part 14 may be mesh-shaped.

  Moreover, although the film part 11 and the 1st adhesion part 12 showed the example comprised by a separate structural member, what was integrated can also be used.

  The film part 11 and the pad part 21 are preferably formed of a sterilizable material or an antibacterial material.

  Moreover, when the wound dressing materials 1a and 1b are used for a long time, the adhesive force of the 1st adhesion part 12 will fall. In this case, it is necessary to replace the wound dressings 1a and 1b. However, if the wound dressings 1a and 1b are frequently replaced, the wound part is dried or the wound part is stimulated. That is, it is important to replace the wound dressings 1a and 1b at an appropriate time.

  FIG. 5 is a perspective view showing a configuration of a wound dressing 1c provided with a test piece for indicating the replacement time of the film member. The wound dressing 1c has a configuration in which a test piece 31 which is a portion indicated by a broken line in the wound dressing 1a in the first embodiment is provided. The test piece 31 includes a first test piece 32 extending from the film member 2a and a second test piece 33 extending from the absorbent pad member 3a onto the first test piece 32. The first test piece 32 has a configuration in which the first adhesive portion 12 is disposed on the lower surface of the film portion 11. The 2nd test piece 33 is the structure by which the 2nd adhesion part 23 is arrange | positioned at the lower surface of the coating | coated part 22a.

  The test piece 31 is used, for example, when visually confirming the healing state of the wound part. When the absorbent pad member 3a is peeled off, the second test piece 33 starts to be peeled off. At this time, if the second test piece 33 is peeled off from the first test piece 32, it can be determined that it is not time to replace the film member 2a. On the other hand, if the second test piece 33 is peeled off from the skin together with the first test piece 32, it can be determined that it is time to replace the film part 2a in which the adhesive force of the first adhesive part 12 has decreased.

  Thus, the test piece 31 can determine the replacement time of the film part 2a.

  Moreover, you may attach | subject the marker which shows the sticking position of absorption pad member 3a, 3b on the upper surface of the film part 11. FIG. FIG. 6 is a top view showing a configuration in which the marker 34 is attached to the top surface of the film member 2a. Thereby, an absorption pad member can be correctly affixed on the area | region shown with the broken line. Therefore, the water-permeable part 14 of the film part 11 and the pad part 21 can be aligned. 6 shows an example in which the marker 34 is attached to the positions of the four corners where the absorbent pad member is attached. However, as shown by the broken line in FIG. Also good.

  Furthermore, if the marker 34 is formed of a convex member, alignment can be performed with higher accuracy.

  Moreover, the pad part 21 can be comprised with an elastic material. Thereby, when a force is applied to the wound dressing from the outside, the force can be dispersed, and the leachate can be prevented from leaking to the outside of the wound dressing.

  The present invention has the advantage that it can be visually confirmed and the wound dressing can be replaced while maintaining the wound part in a wet state without damaging the wound part. It can be used as a wound dressing.

DESCRIPTION OF SYMBOLS 1a, 1b, 1c Wound dressing material 2a, 2b Film member 3a, 3b Absorption pad member 11 Film part 12 1st adhesion part 13 Wet holding area 14 Water permeable part 15 Hydrophobic part 16 1st rib 21 Pad part 22a, 22b Cover part 23 2nd adhesive part 24 2nd rib 31 Test piece 32 1st test piece 33 2nd test piece 34 Marker

Claims (8)

A film member that retains the wound part in a wet state by the exudate from the wound part, and is partially permeable to the exudate;
An absorbent pad member that is laminated to the film member and absorbs the leachate that has passed through the film member;
The film member is
A film part that is permeable to the exudate excluding the outer peripheral edge part and is made of a transparent or translucent material;
A first adhesive part that is disposed on the entire outer peripheral edge of the lower surface of the film part, and can adhere the film part and the skin around the wound part;
The absorbent pad member is
A pad portion for absorbing the leachate;
A covering portion covering the pad portion;
It is arranged so as to surround the pad part around the outer peripheral edge of the lower surface of the covering part, and has a second adhesive part that can be bonded to the film part,
A wound dressing characterized in that the adhesive strength between the second adhesive portion and the film portion is lower than the adhesive strength between the first adhesive portion and the skin.   The wound dressing according to claim 1, wherein the region excluding the outer peripheral extension of the film portion is composed of a porous member.   The wound dressing according to claim 1 or 2, wherein a portion of the film portion that is bonded to the first adhesive portion has water permeability.   The wound dressing according to any one of claims 1 to 3, wherein the first adhesive portion has hydrophobicity, and the lower surface of the film portion has hydrophobicity.   The wound dressing according to any one of claims 1 to 4, wherein the film member is wider than the absorbent pad member.   The said film member has the hydrophobic 1st rib arrange | positioned over the perimeter in the inner side vicinity of the said 1st adhesion part arrange | positioned in the lower surface perimeter of the said coating | coated part. The wound dressing according to one item.   The wound dressing according to any one of claims 1 to 6, wherein a portion of the film portion that is bonded to the second adhesive portion has water permeability.   The wound dressing according to any one of claims 1 to 7, wherein the second adhesive portion has hydrophobicity and the covering portion has hydrophobicity.

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