JP2002078730A - Pad to be applied to wound part - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a medical treatment material which does not exert pungency to a wound part, obviates the solidification of the material by the contaminated exudate, the fixation to the wound part and the clogging of the wound in spite of direct contact with the wound part, lessens the infection of the wound part by sucking up the contaminated exudate, prevents the intrusion of benign granulation tissue into a fibrous cotton layer and promotes the recovery from the wound, more preferably a pad to be applied to the wound part. SOLUTION: This pad consists of the liquid permeable fibrous cotton layer to be applied to the wound part and the liquid absorptive fibrous cotton layer to be superposed on the liquid permeable fibrous cotton layer.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pad for removing contaminated exudate from a wound of skin and subcutaneous tissue and for early recovery of the wound.

[0002]

2. Description of the Related Art The treatment of wounds on the skin and subcutaneous tissue with contaminated exudate resulting from surgery, wounds, skin ulcers, pressure ulcers, etc. begins with dibucaine hydrochloride, chlorhexidine gluconate, benzethonium hydrochloride, acrinol and Conventionally, disinfection is performed with podon-iodine or the like, and then gauze or the like is applied to the wound portion to remove contaminated exudate.

[0003]

However, when a liquid-absorbing fiber such as gauze is directly applied to the wound, the gauze or the like that has absorbed the contaminated exudate solidifies on the wound, and the contaminated exudate is removed. Since leakage is prevented, contaminated exudate accumulates in the wound and subcutaneous tissue, which may rather delay the healing of the wound.

[0004] In addition, absorbent cotton and gauze have a drawback that when they are used directly on the wound, they contain a contaminated exudate and become a hotbed for the propagation of various bacteria.

[0005] Therefore, the present invention has no irritation to the wound portion, and does not solidify by the contaminated exudate and adhere to the wound portion to close the wound, even if it is brought into direct contact with the wound portion. Medical treatment to prevent wounds from infecting wound parts by sucking up exudate, and to prevent benign granulation tissue from being entrained by the cotton fiber layer and promote wound recovery when benign granulation tissue is formed It is intended to provide a pad which is applied to the material, in particular the wound site.

[0006]

In order to achieve the above object, the present invention provides a pad for contacting a wound with a liquid-pervious fiber cotton layer to be applied to the wound and a polymer layer on the liquid-pervious fiber cotton layer. Liquid absorbent fiber cotton layer.

Further, a liquid-permeable fiber cotton layer applied to a wound portion, a liquid-absorbent fiber cotton layer polymerized on the liquid-permeable fiber cotton layer, and an adhesive member polymerized on the liquid-absorbent fiber cotton layer And a liquid-permeable fibrous cotton layer polymerizing on the bonding member;
It consists of

When the liquid-permeable fiber cotton layer is used in contact with the wound part, the liquid-permeable fiber cotton layer sucks up the contaminated exudate from the wound part by capillary action. Thus, the fiber portion of the liquid-permeable fiber cotton layer does not absorb the liquid, and the very small gap between the fiber portions allows the liquid to pass through. The sucked-up contaminated exudate is then absorbed by the liquid-absorbent fibrous cotton layer. As a result, the wound portion is less contaminated by infection and the like, and the healing of the wound is promoted.

As the liquid-permeable fiber cotton layer, a polyester fiber cotton layer, a polyamide fiber cotton layer, a polyurethane fiber cotton layer, a polyolefin fiber cotton layer, a polystyrene fiber cotton layer, a polyvinyl chloride fiber cotton layer, A polyacrylonitrile-based fiber cotton layer or a polyvinyl alcohol-based fiber cotton layer is preferred, and a polyester-based fiber cotton layer is particularly preferred.

[0010] The liquid-permeable fibrous cotton layer is effectively sterilized because it directly contacts the wound. Sterilization methods include dry heat sterilization, gas sterilization, and gamma ray irradiation sterilization.

[0011] The liquid-absorbent fiber cotton layer is a fiber cotton layer that absorbs and retains water itself, and is made of gauze, natural cotton,
Cellulose or a cellulose derivative water-absorbing resin is suitable.

The adhesive member polymerized on the liquid-absorbent fiber cotton layer is an adhesive tape or the like such as a bandage, and fixes the liquid-permeable fiber cotton layer and the liquid-absorbent fiber cotton layer.

The liquid-permeable fibrous cotton layer polymerized on the adhesive member replaces the cushion so that pressure is not applied to the wound portion and its surroundings, and can promote the healing of wounds such as pressure sores and ulcers. It is something that can be done.

Further, the pad for applying to the wound portion of the present invention comprises a non-adhesive and non-liquid-absorbing mesh sheet for benign granulation tissue, and a liquid-permeable fibrous cotton layer polymerized on the mesh sheet. And a liquid-absorbent fiber cotton layer polymerized on the liquid-permeable fiber cotton layer.

In addition, non-adhesive to benign granulation tissue,
A non-liquid-absorbent mesh sheet, a liquid-permeable fiber cotton layer polymerized on the mesh sheet, a liquid-absorbent fiber cotton layer polymerized on the liquid-permeable fiber cotton layer, and a liquid-absorbent fiber cotton It comprises an adhesive member polymerized on the layer and a liquid-permeable fiber cotton layer polymerized on the adhesive member.

When benign granulation occurs as the wound gradually heals, use of a non-adhesive, non-liquid-absorbing mesh sheet can prevent bedding of fibrous cotton by benign granulation. Effective for wound healing.

The mesh sheet includes a silicon sheet, a silicon gauze, a polyethylene sheet, or the like.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a view showing a pad for applying to a wound part according to the present invention, in which a liquid-permeable fiber cotton layer 2 is applied on a wound part 1 and a liquid-absorbent fiber cotton layer 3 is superposed thereon. It shows the state where it was turned on.

FIG. 5 is a partially enlarged view of the liquid-permeable fiber cotton layer 2. As can be seen from this figure, the fiber 9 does not absorb the contaminated exudate from the wound, and the fiber 9 and the fiber 9 The very small gap 8 between them sucks up the exudate contaminated by capillary action and allows the contaminated exudate to pass through. The absorbed contaminated exudate is absorbed by the gauze 3 through the gap 8. However, the fibers 9 do not absorb the contaminated exudate and therefore do not adhere to the wound area 1. Since the contaminated exudate is not absorbed by the fibers 9 and does not adhere to the wound portion 1, and the contaminated exudate is sucked up through the gap 8, the wound portion 1 is clean so that bacteria such as MRSA do not easily propagate. State is maintained.

As a result, healing of wounds and the like is promoted. That is, exudate contaminated by bacteria does not accumulate in the wound portion 1 for a long time, so that infection is reduced, benign granulation is promoted, and wound healing is promoted.

Furthermore, unlike the absorbent cotton conventionally used in the medical field, the liquid-permeable fibrous cotton layer 2 has no water absorbency in the fiber 9, so that even if it is directly used for the wound portion 1, the wound portion is made like the absorbent cotton. The contaminated exudate from No. 1 does not serve as a breeding ground for the propagation of various bacteria, and does not solidify with the contaminated exudate and adhere to the wound portion 1 like gauze. Further, since the liquid-permeable fiber cotton layer 2 has no irritation to the wound portion 1 such as absorbent cotton, it can be used directly on the affected part without causing pain to the patient. Further, the liquid-permeable fiber cotton layer 2 is a layer, so it has a certain thickness and is soft, so it has elasticity,
Therefore, it also has a buffering effect against shocks such as external pressure on the wound portion 1, and also prevents circulatory disturbance.

As the liquid-permeable fibrous cotton layer 2 used in the present invention, any fiber may be used as long as the fiber 9 itself has no absorbability and does not have irritation to the wound portion 1. Can be. For example, polyester fiber cotton layer, polyamide fiber cotton layer, polyurethane fiber cotton layer,
Polyolefin fiber cotton layer, polystyrene fiber cotton layer,
Examples thereof include a polyvinyl chloride-based fiber cotton layer, a polyacrylonitrile-based fiber cotton layer, and a polyvinyl alcohol-based fiber cotton layer. Among them, commercially available polyester fiber cotton is preferable from the viewpoints of availability, flexibility and thermal stability, and specific examples of commercially available products include Super Esser, Tetron, Washlon and the like.

As the absorbent fibers constituting the liquid-absorbent fiber cotton layer 3 according to the present invention, those which absorb liquid quickly are preferable. What absorbs and loses shape is not preferable, but those which are reinforced with synthetic fibers or the like so as not to lose their shape can be used. Specific examples include gauze, natural cotton, cellulose or a cellulose derivative water-absorbing resin.

The liquid-permeable fiber cotton layer 2 has various sizes and thicknesses according to the size of the wound portion 1 or the degree of the wound. The liquid-absorbent fiber cotton layer 3 also has various sizes and thicknesses in accordance with the size of the liquid-permeable fiber cotton layer 2 located below.

The thickness of the liquid-permeable fibrous cotton layer 2 is
The thickness is preferably about 1 cm to 10 cm, and more preferably about 5 cm, for buffering external compression.

The thickness of the liquid-absorbent fiber cotton layer 3 is
Is appropriately selected according to the amount of the contaminated exudate from the plant.

Since the liquid-permeable fibrous cotton layer 2 is in direct contact with the wound part 1, it is necessary to sterilize it, but a substance having a bactericidal effect can also be added. Substances having such a bactericidal effect include chemotherapeutic agents,
Antibacterial substances, antibiotics, disinfectants and the like can be mentioned.

As shown in FIG. 2, the liquid-absorbent fiber cotton layer 3 may be fixed with an adhesive tape such as a bandage, or the whole may be gauze, a sheet, or the like, which is slightly larger than the liquid-absorbent fiber cotton layer 3. You may cover it and use it. Liquid absorbent fiber cotton layer 3
It may be replaced at any time depending on the condition containing the contaminated exudate. On the other hand, the liquid-permeable fibrous cotton layer 2 does not need to be replaced frequently because it does not absorb itself and absorbs the contaminated exudate.

FIG. 2 is a view showing a state in which the liquid-absorbent fiber cotton layer 3 is fixed with an adhesive tape 4 such as a bandage, and the liquid-absorbent fiber cotton layer 5 is further applied to the liquid-absorbent fiber cotton layer 3. is there.

The liquid-permeable fiber cotton layer 5 functions as a reduced pressure cushion. That is, it functions as a decompression cushion so that external pressure is not applied to the wound portion 1 and that the wound portion 1 is not affected by external impact.

FIG. 3 is a view showing a state in which a benign granulation 7 is formed on the wound portion 1 and a mesh sheet 6 is applied to the benign granulation 7. This shows a state in which the absorbent fiber cotton layer 2 is overlaid, and the liquid-absorbent fiber cotton layer 3 is overlaid on the liquid-permeable fiber cotton layer 2.

While the condition of the wound portion 1 such as a pressure sore is bad,
The liquid-permeable fibrous cotton layer 2 does not adhere to the wound portion 1, but when the tissue of the wound portion 1 proliferates and the benign granulation 7 becomes good and the generation of contaminated exudate decreases, the benign granulation The tissue may involve the liquid-permeable fiber cotton layer 2 in such a case. In such a case, the surface of the liquid-permeable fiber cotton layer 2 that comes into contact with benign granulation tissue is non-adhesive and non-liquid-absorbing. When the sheets 6 made of non-woven reticulated fibers are overlapped, a benign granulation tissue can prevent the liquid-permeable fibrous cotton layer 2 from getting caught.

The mesh sheet 6 includes a silicon sheet, a silicone gauze, a polyethylene sheet, or the like.

FIG. 4 shows a state in which the liquid-absorbent fiber cotton layer 3 shown in FIG.
A liquid permeable fiber cotton layer 5 on top of
This liquid-permeable fiber cotton layer 5 functions as a pressure-reducing cushion as described above.

The pad applied to the wound portion according to the present invention will be described below by way of a clinical example. Trial example 1 The patient is a 70-year-old man. She was bedridden on angina and anoxic encephalopathy. Nutrition is normal. The pressure ulcer had a size of 14 cm × 29 cm in the sacral region and 9 cm × 5.5 cm in the heel region, and all had a depth reaching the bone. The wound had bacterial infection, necrosis, and poor granulation. After the necrotic tissue was actively removed, the wound was washed once with 500 ml of isodine saline once a day, and the wound was coated with isodine gel. Gauze was laminated and used as the test material. Only the absorbent gauze was changed twice a day, and the dry heat sterilized tetron cotton directly applied to the wound was changed once a day. The exudate decreased remarkably, and 7 days after the use of this test material, dry heat sterilized tetron cotton fibers became attached to the granulation, and the disappearance of bacterial infection and the remarkable growth of benign granulation were observed. confirmed. From this time, the pressure ulcer part was promoted to heal and the wound was reduced.

Clinical Example 2 The patient was a 78-year-old man. Bed rest for a long time due to chronic malabsorption. Nutrition is poor. Pressure ulcer is 5cm x 8cm on the sacrum
And the depth to reach the bone. The wound had necrotic tissue, poor granulation, and bacterial infection. After excision of necrotic tissue, 500 ml of isodine saline
Washes once a day with, and applied to the wound area with isodine gel.
Gauze having a thickness of 2 cm was laminated and used as the test material. The exudate decreased rapidly and almost disappeared 3 weeks after bacterial infection. Poor nutritional status continued, but after 5 weeks, dry heat sterilized tetron cotton fibers began to adhere to the granulation, resulting in good granulation. Although the scale of the wound was small, it was possible to obtain a wound surface that could be implanted.

[0038]

According to the present invention having the above-mentioned structure, there is no irritation to the wound part, and the contaminated exudate from the wound part is immediately transferred to the liquid-absorbent fiber cotton layer, and the wound part is infected. Therefore, the pressure applied to the wound portion from the outside can be reduced, which is effective for early recovery of a disease involving a wound of skin or subcutaneous tissue such as a wound, a skin ulcer, and a pressure sore. If more benign granulations have formed,
It is possible to prevent the liquid-permeable fiber cotton layer from being involved.

[Brief description of the drawings]

FIG. 1 is a view showing a pad for applying to a wound portion of the present invention.

FIG. 2 is a view showing a pad for fixing a liquid-absorbent fiber cotton layer with an adhesive tape and applying the liquid-absorbent fiber cotton layer to a wound portion where the liquid-absorbent fiber cotton layer is applied.

FIG. 3 is a view showing a state in which a mesh sheet is superimposed on a benign granulation tissue in a pad for applying to a wound portion shown in FIG. 1;

4 is a view showing a state in which a net-like sheet is overlaid on a benign granulation tissue in a pad for applying to a wound portion shown in FIG. 2;

FIG. 5 is a partially enlarged view of a liquid-permeable fiber cotton layer.

[Explanation of symbols]

 1. Wound part 2. Liquid permeable fiber cotton layer 3,5 Liquid absorbent fiber cotton layer 4. Adhesive tape 6. 6. Reticulated sheet 7. Benign granulation Gap 9. fiber

Claims (16)

[Claims] 1. A liquid-permeable fiber cotton layer applied to a wound portion,
A liquid absorbent fiber cotton layer polymerized on the liquid permeable fiber cotton layer, and a pad for applying to a wound portion. 2. The liquid-permeable fiber cotton layer is a polyester fiber cotton layer, a polyamide fiber cotton layer, a polyurethane fiber cotton layer, a polyolefin fiber cotton layer, a polystyrene fiber cotton layer, or a polyvinyl chloride fiber cotton layer. The pad for applying to a wound part according to claim 1, wherein the pad is a cotton layer of polyacrylonitrile-based fiber or cotton layer of polyvinyl alcohol-based fiber. 3. The pad for applying to a wound according to claim 1, wherein the liquid-permeable fibrous cotton layer is sterilized. 4. The pad for applying to a wound according to claim 1, wherein the liquid-permeable fiber cotton layer is made of gauze, natural cotton, cellulose or a cellulose derivative absorbing resin. 5. A liquid-permeable fibrous cotton layer applied to a wound portion,
A liquid absorbent fiber cotton layer polymerized on the liquid permeable fiber cotton layer, an adhesive member polymerized on the liquid absorbent fiber cotton layer,
A pad for applying to a wound portion, comprising a liquid-permeable fiber cotton layer polymerized on the bonding member. 6. The liquid-permeable fiber cotton layer is a polyester fiber cotton layer, a polyamide fiber cotton layer, a polyurethane fiber cotton layer, a polyolefin fiber cotton layer, a polystyrene fiber cotton layer, or a polyvinyl chloride fiber cotton layer. 6. The pad for applying to a wound part according to claim 5, wherein the pad is a cotton layer of polyacrylonitrile-based fiber or cotton layer of polyvinyl alcohol-based fiber. 7. The pad for applying to a wound according to claim 5, wherein the liquid-permeable fiber cotton layer is sterilized. 8. The pad according to claim 5, wherein the liquid-permeable fiber cotton layer is made of gauze, natural cotton, cellulose or a cellulose derivative absorbent resin. 9. A non-adhesive, non-liquid-absorbing net-like sheet applied to benign granulation tissue, a liquid-permeable fiber cotton layer polymerized on the net-like sheet, and a liquid-permeable fiber cotton layer on the liquid-permeable fiber cotton layer. A pad for applying to a wound, comprising a liquid-absorbent fiber cotton layer to be polymerized. 10. The liquid-permeable fiber cotton layer is a polyester fiber cotton layer, a polyamide fiber cotton layer, a polyurethane fiber cotton layer, a polyolefin fiber cotton layer, a polystyrene fiber cotton layer, a polyvinyl chloride fiber cotton layer. 10. The pad for applying to a wound portion according to claim 9, wherein the pad is a cotton layer of polyacrylonitrile-based fiber or cotton layer of polyvinyl alcohol-based fiber. 11. The pad for applying to a wound according to claim 9, wherein the liquid-absorbent fiber cotton layer is made of gauze, natural cotton, cellulose or a cellulose derivative absorbent resin. 12. The pad according to claim 9, wherein the mesh sheet is a silicon sheet, a silicone gauze, or a polyethylene sheet. 13. Non-adhesive to benign granulation tissue,
A non-liquid-absorbent mesh sheet, a liquid-permeable fiber cotton layer polymerized on the mesh sheet, a liquid-absorbent fiber cotton layer polymerized on the liquid-permeable fiber cotton layer, and a liquid-absorbent fiber cotton What is claimed is: 1. A pad for applying to a wound, comprising: an adhesive member polymerized on a layer; and a liquid-permeable fibrous cotton layer polymerized on the adhesive member. 14. The liquid-permeable fiber cotton layer is a polyester fiber cotton layer, a polyamide fiber cotton layer, a polyurethane fiber cotton layer, a polyolefin fiber cotton layer, a polystyrene fiber cotton layer, or a polyvinyl chloride fiber cotton layer. 14. The pad for applying to a wound portion according to claim 13, wherein the pad is a polyacrylonitrile-based fiber cotton layer or a polyvinyl alcohol-based fiber cotton layer. 15. The pad according to claim 13, wherein the liquid-absorbent fiber cotton layer is made of gauze, natural cotton, cellulose or a cellulose derivative absorbent resin. 16. The pad according to claim 13, wherein the mesh sheet is a silicon sheet, a silicone gauze, or a polyethylene sheet.