What Is Medical Dressing?
Medical dressings include natural gauze, synthetic fiber-based dressings, polymer film-based dressings, foamed multi-cluster dressings, hydrocolloid-based dressings, alginate dressings, and the like.
Medical dressing
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- Chinese name
- Medical dressing
- Foreign name
- Medical dressings
- Category
- Wounded supplies
- Including
- Natural gauze
- Natural gauze
- Strong and rapid absorption of wound exudate
- Medical dressings include natural gauze, synthetic fiber-based dressings, polymer film-based dressings, foamed multi-cluster dressings, hydrocolloid-based dressings, alginate dressings, and the like.
- Medical dressings are wound-wound supplies used to cover sores, wounds, or other damaged medical materials. With the in-depth study of the pathophysiology of the wound healing process, people's understanding of the wound healing process has become deeper and deeper, which has led to the continuous improvement and development of medical wound dressings. Today, new dressings for wound care have undergone revolutionary changes compared to earlier days, and a variety of medical dressings with different properties are available for clinical nurses to choose from. At present, alginate dressings are the most advanced medical dressings in the world.
- Medical dressings are wound-wound supplies used to cover sores, wounds, or other damaged medical materials.
- With the in-depth study of the pathophysiology of the wound healing process, people's understanding of the wound healing process has become deeper and deeper, which has led to the continuous improvement and development of medical wound dressings. Today, new dressings for wound care have undergone revolutionary changes compared to earlier days, and a variety of medical dressings with different properties are available for clinical nurses to choose from.
- Natural gauze:
- (Cotton pad) This is the earliest and most widely used type of dressing.
- advantage:
- 1.Powerful and rapid absorption of wound exudate
- 2. The production process is relatively simple
- Disadvantages:
- 1. The permeability is too high, and it is easy to dehydrate the wound
- 2. Adhesive wounds, which will cause re-mechanical damage during replacement
- 3. The external environment microorganisms are easy to pass, and the chance of cross infection is high.
- 4. Large dosage, frequent replacement, time-consuming, and patient suffering
- Due to the reduction of natural resources, the cost of gauze is also gradually increasing. Therefore, in order to avoid over-utilization of natural resources, there has been the application of polymer materials (synthetic fibers) to medical dressings, which are synthetic fiber dressings.
- Synthetic fiber dressing:
- This type of dressing has the same advantages as gauze, such as economical, and has good absorption performance, etc., and some products also have self-adhesion, which makes it easy to use. However, these products also have the same shortcomings as gauze, such as high permeability and no barrier to particulate pollutants from the external environment.
- Polymembrane dressing:
- This is a relatively advanced type of dressing. It has the characteristics that oxygen, water vapor and other gases can be freely permeable, and particulate foreign matter such as dust and microorganisms in the environment cannot pass.
- advantage:
- 1. Block environmental microorganisms from invading wounds and prevent cross infection
- 2. Moisturizing, making the wound moist, not sticking to the wound, so that it will not cause repetitive mechanical damage during replacement.
- 3, self-adhesive, easy to use, and transparent, easy to observe the wound situation
- Disadvantages:
- 1. Poor fluid absorption capacity
- Relatively high cost
- 3. The skin around the wound has a great chance of immersion, so this type of dressing is mainly applied to wounds with little exudation after surgery, or as an auxiliary dressing for other dressings.
- Foam polymer dressing
- This is a type of dressing made of polymer material (PU). The surface is often covered with a polymer semipermeable membrane, and some are self-adhesive. main
- advantage:
- 1.Fast and powerful exudate absorption capacity
- 2. Low permeability, keep the wound surface moist, and avoid recurring mechanical damage when changing dressings
- 3. The barrier property of the surface semi-permeable membrane can prevent the invasion of environmental particulate foreign matter such as dust and microorganisms, and prevent cross infection
- 4, easy to use, good compliance, can be suitable for all parts of the body
- 5, heat insulation, buffering the external momentum
- Disadvantages:
- 1. Due to too strong absorption performance, it may affect the debridement process for low exuding wounds.
- Relatively high cost
- 3. It is not convenient to observe the wound surface because of opacity
- Hydrocolloid dressings:
- Its main component is a hydrocolloid with very strong hydrophilic ability -------- sodium carboxymethyl cellulose granules (CMC), and hypoallergenic medical viscose, plus elastomer, plasticizer, etc. Together they form the main body of the dressing, the surface of which is a semi-permeable polymer film structure. After the dressing comes into contact with the wound exudate, it can absorb the exudate and form a gel to prevent the dressing from adhering to the wound. At the same time, the surface's semi-permeable membrane structure allows oxygen and water vapor to exchange, but it also has Barrier to foreign particles such as dust and bacteria.
- advantage:
- 1.Can absorb wound exudate and some toxic substances
- 2. Keep the wound moist and retain the biologically active substances released by the wound itself. In addition to providing an optimal microenvironment for wound healing, it can also accelerate the process of wound healing.
- 3, with Qing creative use
- 4. Form a gel to protect exposed nerve endings and reduce pain. At the same time, no mechanical damage will be caused when changing the dressing
- 5. Self-adhesive and easy to use
- 6, good compliance, users feel comfortable, and the appearance is hidden
- 7. Block the invasion of foreign particles such as dust and bacteria, and reduce the number of dressing changes, thereby reducing the labor intensity of the nursing staff
- Cost savings due to faster wound healing
- Disadvantages:
- 1. Absorptive capacity is not very strong, so for high exudative wounds, other auxiliary dressings are often required to enhance the absorption performance
- 2.High product cost
- 3. Individual patients may have allergies to ingredients
- It can be said that this is a relatively ideal type of dressing, and its decades of clinical application experience abroad have shown that the effect of hydrocolloid dressing on chronic wounds is particularly outstanding.
- Alginate dressing:
- Alginate dressings are currently one of the most advanced medical dressings. The main component of alginate dressing is alginate, which is a natural polysaccharide carbohydrate extracted from seaweed and is a kind of natural cellulose.
- Alginate medical dressing, a high-absorptive functional wound dressing composed of alginate. After contacting the wound exudate, the medical film can form a soft gel, provide an ideal moist environment for wound healing, promote wound healing, and relieve wound pain.
- Mechanism of action:
- 1. Safe and non-toxic: Alginate medical film is a natural polysaccharide carbohydrate extracted from seaweed. It is a natural polymer material, which has no toxicity to human body and can be used safely.
- 2. High hygroscopicity: Alginate medical film can absorb 11 times of its own weight.
- 3. Hemostasis : The alginate medical film releases Ca2 + when it contacts the wound exudate, which can promote the formation of prothrombin activator and accelerate the blood coagulation process.
- 4. Gel-forming: Absorb wound exudate, and Na + / Ca2 + ion exchange with the exudate, forming a stable network gel on the wound surface. Create a microenvironment for the wound that is good for tissue growth (slightly acidic, anaerobic or hypoxic, moderately moist).
- 5. Promote wound healing: slightly acidic, anaerobic or hypoxic, moderately moist wound environment promotes the release of growth factors, stimulates cell proliferation, improves the regeneration ability of epidermal cells and cell migration, and promotes wound healing.
- 6, antibacterial:
- Good sealing performance, so that the wound is isolated from external bacteria;
- , harmful bacteria are fixed inside the fiber, which effectively inhibits the reproduction of harmful bacteria and reduces the chance of bacteria contacting the wound;
- A humid, slightly acidic environment is conducive to the role of neutrophils, enhancing local bactericidal capacity, and reducing the incidence of infection.
- 7. Reduce local pain: Hydrogels formed on the surface can effectively protect nerve endings and avoid external stimuli; it is not easy to adhere to the wound, easy to remove, and reduce wound pain.
- 8. Reduce scar formation: As there is no irritation or damage to the wound, scar formation is less.
- advantage:
- 1.Powerful and rapid absorption of exudate
- 2. Form a gel to keep the wound moist and non-sticky, protect exposed nerve endings and reduce pain
- 3. Promote wound healing;
- 4, can be biodegraded, good environmental performance;
- 5, reduce scar formation;
- Disadvantages:
- 1. Most products are not self-adhesive and need auxiliary dressings for fixing
- Relatively high cost