Medical hydrogel dressing and preparation method thereof

Abstract

The invention relates to a wound healing hydrogel dressing applicable to nursing various acute and chronic wounds and a preparation method. The hydrogel dressing comprises a hydrogel layer, a fixing non-woven fabric and a medical adhesive tape, the hydrogel layer is fixed on a surface of the non-woven fabric, and the other surface of the non-woven fabric is adhered on the medical adhesive tape. The preparation method includes fixing cross-linking agent on the non-woven fabric; coating solution of a raw material of hydrogel onto one surface of the non-woven fabric, adhering the other surface of the non-woven fabric onto the medial adhesive tape with pressure-sensitive adhesive after crosslinking is finished, arranging the pressure-sensitive adhesive onto one surface of the medical adhesive tape while arranging a separate film backing on the other surface of the medical adhesive tape, and attaching an isolating film on one surface of the hydrogel; and sterilizing after the medical hydrogel dressing is packaged. The medical hydrogel dressing is convenient in use, can rapidly absorb exudation of the wound, prevents the exudation of the wound from excessively steeping the wound, creates a moist wound healing condition, and promotes wound healing. A self-adhesion function of the wound healing hydrogel dressing is greatly convenient for clinic service.

Description

technical field [0001] The invention relates to a wound repairing hydrogel dressing suitable for various acute and chronic wound care. The dressing has unique liquid absorption and self-adhesive functions, is convenient to use and can absorb wound exudate to prevent excessive wound exudate Impregnation of the wound surface can create slightly moist wound healing conditions and promote wound healing. Its self-adhesive function greatly facilitates clinical use. Background technique [0002] Wound repair has always been an important issue facing human beings. In order to speed up wound repair, people have always hoped to find out some method or drug to promote or accelerate this process. In the early days, people used dry therapy on wounds, especially large burn wounds, mainly from the perspective of preventing infection. Later, people found that if the wounds were kept in a certain moist environment, the wounds would heal better. Under the guidance of the theory of "moist wou...

AI Technical Summary

Problems solved by technology

The synthesis method of the composite hydrogel wound dressing mentioned in the patent is currently the most widely used method for making hydrogel dressings. The hydrogel dressing prepared by this method has good biological safety, but the method prepared The hydrogel needs to be re-sterilized in other appropriate ways after covering the gas-permeable membrane, which virtually increases the production cost

Moreover, although the hydrogel prepared by the method described in the patent has high water absorption, the water absorption rate is relatively slow, and its water absorption performance within 30 minutes is limited, which cannot solve the problem of rapid liquid absorption in clinical use.

Images