Antibacterial dressing with composite function and preparation method thereof

Abstract

The invention discloses an antibacterial dressing with a composite function and a preparation method thereof.The antibacterial dressing is of a four-layer structure, the first layer is a gel layer which has a moisturizing effect and makes direct contact with a wound, the second layer is an antibacterial layer, the antibacterial layers with different liquid absorption amounts can be selected to be combined according to different exudate conditions of the wound, and the composite function is achieved. The antibacterial layer comprises a gauze antibacterial layer, a non-woven fabric antibacterial layer and a polyurethane foam antibacterial layer which are replaceable), the third layer is an adsorption layer (replaceable), and the fourth layer is a backing layer. The antibacterial dressing only plays a role in infected wounds, does not damage or interfere fragile skin flora around the infected wounds and can be replaced for use, and antibacterial layers with different liquid absorption functions are selected according to the seepage amount of a patient.

Description

technical field [0001] The invention belongs to the field of medical dressings, and relates to an antibacterial dressing, in particular to an antibacterial dressing with composite functions and a preparation method thereof. Background technique [0002] A wound is a damage to the integrity of the skin, and microorganisms will take the opportunity to invade and grow in the wound. With the proliferation of microorganisms, the wound will eventually become infected. It is generally divided into acutely infected wounds and chronically infected wounds. [0003] The main manifestations of acutely infected wounds are local redness, swelling, heat, pain, and dysfunction. Systemic symptoms depend on the degree of infection and physical strength. Including purulent wound infection (common in wound cellulitis, wound suppuration, etc.) and specific wound infection (tetanus, tuberculosis, anaerobic gangrene, etc.). [0004] Symptoms of chronic wound infection are mainly redness, swelling...

AI Technical Summary

Problems solved by technology

[0011] The purpose of the present invention is to solve the situation that the fragile skin around the infected wound is damaged. A large amount of silver ions in the existing antibacterial medical dressings are harmful to the health. The worker's workload is heavy, and the defect that the patient suffers unbearably pain when replacing the dressing provides a kind of antibacterial dressing with compound function. The antibacterial dressing of the present invention only acts on the infected wound, and it is effective on the fragile skin flora around the infected wound. It does not produce damage and interference, and can be used interchangeably. According to the amount of exudate of the patient, the antibacterial layer with different liquid absorption functions is selected. The antibacterial component is an inorganic silver ion with a particle size of micron, which is larger and more accurate than nanometer particle size. Safe, will not enter human tissue, will not cause any harm to human tissue

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