CN204033612U - Exudate-absorbing dressing for cancerous wounds - Google Patents

Abstract

The utility model discloses a dressing is absorbed to special sepage of cancerous wound relates to a medical dressing. The dressing body is formed by sequentially laminating a PE film, super absorbent resin and high polymer composite paper from top to bottom, the layers are bonded and closed through hot melt adhesives arranged on the outer wall of the dressing body, a plurality of openings are arranged on the PE film and the high polymer composite paper at intervals, the cross section of each opening is in a funnel shape with a large upper part and a small lower part, and the high polymer composite paper is provided with a wave-shaped indentation. The utility model discloses can improve the sepage situation of wound effectively, reduce skin infiltration around the wound, alleviate patient's nursing volume, alleviate patient's embarrassment and suppress mood, can help the patient to improve quality of life. And simultaneously, the utility model discloses alleviateed the patient because of the harmful effects that cancerous wound brought, alleviateed the misery for the patient, alleviateed patient's medical expense burden, brought the gospel for the patient, improved clinical care level.

Description

Exudate-absorbing dressing for cancerous wounds

technical field

The utility model relates to a medical dressing, in particular to a special exudate-absorbing dressing for cancerous wounds, which is mainly used for controlling the exudate of cancerous wounds.

Background technique

Cancer cells will infiltrate epithelial tissue and surrounding lymphatic vessels and blood vessels, and cause local tissue ischemia and hypoxia necrosis, forming skin ulcers, which become cancer wounds, also known as malignant fungating wounds. wound). Cancerous wounds develop in 5-10% of patients with metastatic cancer, 62% of which occur in breast cancer. The above-mentioned cancerous wounds have five characteristics: foul smell, large amount of exudate, easy bleeding, pain, and easy damage to the surrounding skin.

In clinical work, cancerous wounds are difficult to take care of effectively. The reasons are as follows: On the one hand, the amount of exudate from cancerous wounds is large and continuous. If the clothes and bed sheets are soaked, it will not only bring embarrassment to the patient, It will also increase the burden on caregivers; on the other hand, the stench produced by cancerous wound anaerobic infection or tumor necrosis often permeates the patient's clothes, which makes the patient's residence often full of stench, This can easily cause depression in patients and caregivers, which is not conducive to the daily care of cancerous wounds. At the same time, when caring for cancerous wounds, if the wound is too dry, the wound dressing will adhere to the wound surface, which will cause granulation tissue damage and pain when the dressing is changed, and it is more likely to cause wound bleeding in cancerous wounds. Studies have shown , dry wounds are more prone to infection than wounds in moist environments.

At present, in order to effectively control the exudate of cancerous wounds, so as to effectively care for cancerous wounds. Both at home and abroad, how to effectively control the exudate of cancerous wounds has been studied. Clinically, the medical supplies used to control wound exudate are as follows: wound drainage or application of ostomy bags, closed hydrocolloid dressings, alginate dressings , foam dressing, silicone dressing, silver ion dressing, iodine dressing and activated carbon dressing, the above medical supplies have their own advantages, but it is difficult to effectively control the exudate of cancerous wounds, which is not convenient for patients to self-care. Liquid medical supplies are described:

a. Wound drainage or application of ostomy bag is one of the methods to control wound exudate. However, it is difficult to apply wound drainage or application of ostomy bag to cancerous wounds clinically due to the characteristics of large wound surface and severe surrounding skin lesions. daily care.

b. When the wound bed is dry or the amount of exudate is low, an occlusive hydrocolloid dressing (such as Coloplast's Comfeel, 3M's Tegasorb) can be used. Hydrocolloid dressings are made by combining hydrophilic molecular particles on a hydrophobic polymer layer. It can absorb exudate 30 times its own weight. The advantage is that the hydrophilic layer can absorb wound exudate, and the hydrophobic layer can prevent Pathogens from the environment invade the wound. It can be well attached to the wound surface, which can reduce the pain caused by changing the dressing. Therefore, the hydrocolloid dressing can seal the wound well and prevent the odor from volatilizing. It is also true that this dressing is not recommended for use on infected wounds, especially cancerous wounds that are highly susceptible to anaerobic infection.

c. Alginate dressings have been clinically used in cancerous wounds. It has a strong absorption capacity and has a hemostatic effect, which greatly increases its application in cancerous wounds. When the wound absorbs exudate, it forms a hydrophilic gel on the surface that absorbs wound exudate and maintains a moist healing environment in the wound bed. Since it stops wound exudate, it reduces wound odor. When using alginate, the residues of excipients should be completely removed to reduce the inflammatory response of the body. The dressing is non-adhesive, and you need to choose a suitable outer dressing to fix it when you use it. There is controversy about the hemostatic function of alginate. Grocott believes that the fiber component of alginate can stimulate the fragile wound tissue and aggravate wound bleeding.

D. When there is a lot of exudate in the wound, you can choose a foam dressing. It can effectively prevent bacteria from entering the wound bed, maintain a proper humidity in the wound bed, and prevent the skin around the wound from being wet and infiltrated. Bed fluid is over-removed and many investigators believe it can be applied to cancerous wounds due to its atraumatic removal and ability to absorb large amounts of exudate. In addition, it is more acceptable to patients from an aesthetic point of view, because it is flat and close to the patient's skin color. Studies have also shown that its application in cancerous wounds is limited, and it is not suitable for necrotic or very dirty wounds, which do not fit some parts of the body, such as armpits and joints. This dressing is more suitable as a second layer of dressing to increase Absorbability, the application of foam silver dressings is also common in clinical practice. These highly absorbent dressings with antibacterial activity can reduce the odor and signs of infection of wounds, but their application and research in cancerous wounds are still lacking.

e. Silicone dressings such as Mepilex (Mepilex) can be effectively used in cancerous wounds. The dressing is highly absorbent and non-sticky, reducing the pain of dressing removal. Mekrut-Barrows studies have shown that Mepilex as the first layer of dressing can remain in the body for 7 days, and only the outer dressing needs to be replaced on time. The use of this dressing in clinical practice is rare, and its effectiveness in cancerous wounds comes only from experimental evidence.

f. Silver ions can be combined into the DNA and RNA of bacteria and denature them, thereby preventing the replication of bacteria. Silver ions can also destroy the electron transfer system of bacteria, so silver ions will reduce the bacterial load, thereby reducing odor and wounds Symptoms of infection. The efficacy of silver ion dressings in acute and chronic wounds has been confirmed by many studies, but there are not many studies on cancer wounds. Some authors suggest that silver ion dressings can be applied to cancer wounds based on observations in clinical practice. Can reduce wound odor. There are many products of silver ion dressings, among which highly absorbable silver ion dressings are more suitable for cancerous wounds. However, silver ion dressings are expensive and can only be used on wounds that require antimicrobial treatment.

g. The bactericidal mechanism of iodine is to penetrate microorganisms and attack their proteins, nucleotides, and fatty acids, which are the basis for bacterial survival. Studies have shown that its application to wounds can reduce wound odor. Cadim iodine has different dosage forms such as adhesive dressings, gel sheets and paste preparations. When the dressing absorbs the exudate, it will form a layer of gel on the surface of the wound to protect the moist environment of the wound and reduce bacterial invasion. The dressing is able to absorb large amounts of exudate and is therefore suitable for cancerous wounds. But Hampton says the dressing can make delicate wounds more likely to bleed, so it should be used with caution.

h. The application of activated charcoal in cancerous wounds is somewhat controversial, and some researchers believe that it is suitable for cancerous wounds because it can absorb those substances that are prone to odor and lock them in the dressing layer. Other scholars believe that it is not suitable for those wounds that need to be sealed and have a lot of exudate, because the exudate will deactivate the carbon. The modified activated carbon dressing (such as: ActisorbSilver220) combined with silver ions can increase the antibacterial ability of activated carbon dressings. This dressing can not only absorb odor, but also the silver ions in it can kill bacteria. Many studies have shown that this dressing is effective in foul-smelling wounds and heavily exuding wounds. It can reduce wound infection and wound stench, and reduce the use of antibacterial drugs.

Contents of the invention

The purpose of the utility model is to overcome the deficiencies of the background technology, and provide a special exudate-absorbing dressing for cancerous wounds, which has low cost and wide application range, can not only effectively control the exudate of cancerous wounds, but also replace the dressing It will not damage the granulation tissue and can reduce the pain of the patient.

In order to achieve the above purpose, the technical solution of the present utility model is: a special exudate-absorbing dressing for cancerous wounds, including a dressing body, characterized in that: the dressing body is composed of PE film, superabsorbent resin and polymer from top to bottom. Composite paper is laminated, and the layers are closed by hot-melt adhesive on the outer wall of the dressing body. The PE film and the polymer composite paper are provided with a plurality of openings arranged at intervals. The cross-sectional shape is a funnel shape with a large top and a small bottom, and the polymer composite paper is provided with wavy indentations.

In actual work, the PE protective film is also called the bottom layer, the super absorbent resin is also called the absorbent core, and the polymer composite paper is also called the surface layer. The absorbent core of the utility model is made of new functional polymer material (high water-absorbing resin), has high water absorption rate, can effectively absorb exudate, and becomes gel after absorbing wound exudate, which can be well combined with The surface of the wound is closely attached, which can reduce the pain caused by changing the dressing; at the same time, the funnel-shaped opening can ensure that the liquid is recycled into the dressing, and can reduce reverse osmosis; finally, the bottom layer of the utility model adopts a non-closed bottom layer to avoid bacterial growth , is beneficial to the control of infected wounds, especially wounds infected by anaerobic bacteria, and prevents odor production.

In the above technical solution, the length of the dressing body is 180-220 mm, and the width of the dressing body is 180-220 mm. When the length of the dressing body is 180-220 mm and the width of the dressing body is 180-220 mm, the utility model has better clinical effect and lower cost.

The utility model can effectively improve the exudate condition of the wound, reduce skin infiltration around the wound, reduce the amount of care for the patient, alleviate the distress and depression of the patient, and help the patient improve the quality of life.

Simultaneously, the utility model alleviates the bad influence of the patient caused by the cancerous wound, alleviates the suffering of the patient, reduces the medical expense burden of the patient, brings good news to the patient, and improves the clinical nursing level.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a sectional view along line A-A of Fig. 1 .

Fig. 3 is a schematic diagram of the structure of the polymer composite paper without openings.

In the figure 1-dressing body, 2-PE protective film, 3-superabsorbent resin, 4-polymer composite paper, 5-opening. 6-hot melt adhesive, 7-wavy indentation.

Detailed ways

The implementation of the utility model will be described in detail below in conjunction with the accompanying drawings, but they do not constitute a limitation of the utility model, and are only examples. At the same time, the advantages of the utility model are made clearer and easier to understand through description.

Referring to the accompanying drawings, it can be seen that the utility model is developed by a subject titled "development and application of a special dressing for cancerous wounds". The dressing body 1 has a square structure with rounded edges and is made of three-layer composite material. The length of the dressing body 1 should be 180-220 mm, and the width of the dressing body 1 should be 180-220 mm. During actual work, when the size of the dressing is 200*200mm, the effect of the utility model is the best. At this time, the clinical effect of the utility model is the best and the cost is the lowest.

Structurally, the utility model is composed of a surface layer, an absorbent core, and a bottom layer arranged sequentially from top to bottom. The materials of each layer are bonded by the hot melt adhesive 6 arranged on the outer wall of the dressing body 1. In actual work, Melt glue 6 can be provided on the forearm, back wall, left side wall and right side wall of dressing body 1 . The surface layer is polymer composite paper 4, the absorbent core is super absorbent resin 3, and the bottom layer is PE film 2. Both the PE film 2 and the polymer composite paper 4 are provided with a plurality of openings 5 arranged at intervals. Shaped indentation 7. The funnel-shaped opening ensures fluid return into the dressing and reduces rewetage. It is preferable that the plurality of openings 5 are arranged in a matrix (criss-cross pattern) on the PE film 2 and the polymer composite paper 4 .

Polymer composite paper is mainly composed of cotton, non-woven fabrics, and pulp. The part of the surface layer that is in direct contact with the wound is used to absorb exudate. The wavy indentation 7 on the surface can reduce reverse seepage.

Super Absorbent Polymer 3 (Super Absorbent Polymer, SAP) is a new type of functional polymer material. It can absorb water hundreds to thousands of times heavier than itself, and it becomes gel after absorbing water, and it is difficult to squeeze out water even if it is pressurized. Superabsorbent resin 3 is non-toxic, harmless and non-polluting; it has extremely strong water absorption capacity and high water retention capacity, and the absorbed water cannot be squeezed out by simple physical methods. Superabsorbent resins are used in medical and hygiene applications, but they are mainly used in sanitary napkins, baby diapers, napkins and medical ice packs; when superabsorbent resins are used as base medical materials for ointments, creams, liniments, cataplasms, etc. When used, it has the functions of moisturizing, thickening, skin infiltration and gelling. Superabsorbent resin can also be made into an intelligent carrier that controls drug release amount, release time, and release space.

The bottom layer is PE film 2, which is composed of PE film and special micropores, which can prevent exudate from seeping back and keep the surface of the dressing breathable and dry.

Other unspecified parts belong to the prior art.

Claims (2)

1. the special sepage absorbent dressing of carcinous wound, comprise dressing body (1), it is characterized in that: described dressing body (1) is from top to bottom successively by PE film (2), super absorbent resin (3) and macromolecule extrusion coating paper (4) are laminated, PUR (6) bonding between layers by being located at dressing body (1) outer wall is closed, described PE film (2) and macromolecule extrusion coating paper (4) are equipped with multiple spaced apart perforate (5), the section shape of described perforate (5) is up big and down small funnel type, described macromolecule extrusion coating paper (4) is provided with waveform impression (7).

2. the special sepage absorbent dressing of carcinous wound according to claim 1, is characterized in that: the length of described dressing body (1) is 180 ~ 220mm, and the wide of dressing body (1) is 180 ~ 220mm.