Selection of Alginate Dressings for Venous Ulcers

With the aging of the population, the care of chronic wounds related to elderly diseases is becoming increasingly important. In 1962, experts proposed the theory of "moist environment promotes wound healing", laying the theoretical foundation for modern wound dressing. Since the 1980s, a large number of new dressings have been developed for various types of wounds, such as high molecular weight film dressings, foam dressings, hydrogel and hydrocolloid dressings, alginate dressings, and bioactive drug dressings. Proper selection of dressings can accelerate wound repair, reduce the risk of infection, shorten hospital stay, and lower medical costs.


Alginate dressing is an ideal dressing for wound care

Surgical dressing is a general term for further treatment of wounds after initial treatment, including wound examination, removal of pus and necrotic tissue, wound cleaning, and covering dressings. Ideal health medical supplies dressings can construct an environment suitable for wound healing. The dressing needs to absorb necrotic tissue and exudate from the wound, have appropriate air permeability, maintain a moist, low oxygen and weakly acidic environment for the wound, and shield bacteria from the outside, keeping the wound temperature stable. In addition, the contact surface of the dressing should have low adhesion, non-toxic, non-irritating, and not affect the proliferation, differentiation, and adhesion of epithelial cells on the wound surface. Dressings should be selected according to different types of wounds and different wound conditions.


Vascular lower limb ulcers are the most common chronic wounds. Among them, venous ulcers in the lower limbs are the most common. The incidence of active lower limb venous ulcers in Europe is about 0.12% to 1.0%, and there are also 2.5 million patients with venous ulcers undergoing surgical dressing in the United States each year. In treatment, vascular lower limb ulcers need to first treat vascular diseases. Only with appropriate treatment of vascular diseases can ulcer healing be accelerated and recurrence reduced. For different types of wounds, using suitable health medical supplies dressings such as alginate dressings can prevent or control wound infections, eliminate local factors that hinder wound healing, and promote wound healing. Common types of lower limb venous ulcers include dry, exudative, granulation, and epithelialization types, corresponding to the inflammatory phase, proliferative phase, and maturation phase of wound repair.


Alginate dressing is a type of dressing suitable for high exudate wounds

It has a good debriding effect and can absorb fluid 20 times its own weight. After absorbing moisture, it forms a gel to isolate external bacteria and provide a suitable moist environment for the wound. Calcium ions in alginate can actively participate in the body's coagulation process and promote wound clotting. When dressing is changed, the gel formed by alginate can be easily rinsed away with physiological saline, not adhere to the wound and the absorbed exudate will not spread and affect the normal skin around the wound. Applying alginate dressing as a health medical supplies for venous ulcers can promote wound healing and shorten patients' recovery time.

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