Nano-film medicinal patch

Abstract

The invention discloses a nano-film medicinal patch. The nano-film medicinal patch is prepared by the following steps of mixing 35-40% of radix flemingiae, 4-7% of radix angelicae sinensis, 4-7% of rhizoma kaempferiae, 4-7% of olibanum, 4-7% of myrrh, 4-7% of radix angelicae, 4-7% of rhizoma chuanxiong, 4-7% of radix gentianae macrophyllae, 4-7% of cortex cinnamomi, 4-7% of rhizoma corydalis, 4-7% of wintergreen essential oil and 4-7% of menthol, grinding into medicine carrying particles with the diameter of 65-100 nanometers, mixing the medicine carrying particles with medical-grade low-sensitivity adhesive according to a certain proportion, forming hydrogel through chemical crosslinking or physical crosslinking, wherein a layer of ultraviolet curing adhesive is coated between the elastic cloth made of polyurethane (PU) and the hydrogel and is cured by ultraviolet irradiation to form an adhesive layer, and the patch with a dressing surface and a stretching surface is produced; the outer side of the hydrogel used as the dressing surface is covered with release paper; and a protective film is attached to the outside of the elastic cloth that serves as the stretching surface. According to the nano-film medicinal patch prepared by the method, the structural body of the nano-scale particles is stored for a long time by using the hydrogel, so that the effect of the traditional Chinese medicinal materials and the service life of the patch are prolonged, and the skin allergy is avoided or the allergy occurrence rate is reduced.

Description

technical field [0001] The invention relates to the technical field of patches, in particular to a method for making a nano-film medicinal patch and the patch made by the method. Background technique [0002] The known medicinal plaster is formed by smearing an adhesive coating on a piece of cloth and covering the adhesive coating with a release paper. The adhesive coating includes two components of adhesive and essential oil, and the essential oil is extracted from Chinese herbal medicines. Therefore, the medicinal patch has the herbal effect of traditional Chinese medicine and can be attached to the skin of the human body. [0003] The known medical patch has the following disadvantages: [0004] First of all, the fast-volatile essential oil shortens the service life of the medicinal patch, and the effect is not good. [0005] Secondly, the thicker cloth is difficult to adhere to the skin surface, and it is easy to warp and fall off; especially, the patch on the joints ...

AI Technical Summary

Problems solved by technology

[0004] First of all, the fast-volatile essential oil shortens the service life of the medicinal patch, and the effect is not good

[0005] Secondly, the thicker cloth is difficult to adhere to the skin surface, and it is easy to warp and fall off; especially, the patch on the joints is easier to loosen and fall off

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