5 results about "Dermal dressing" patented technology

The invention provides a preparation method of traditional Chinese medicine hydrogel for treating psoriasis, the hydrogel preparation is prepared from the following raw material medicines in parts by weight: 20-40 parts of PVA, 60-80 parts of borax, 20-40 parts of glycyrrhizic acid, 8-12 parts of paeoniflorin and 2-3 parts of glycerin, the hydrogel has the advantages of injectability, self-healing, stretchability and the like, can meet the requirements of skin dressing, can be tightly attached to the skin, and has a good application prospect. The separation is easy. Animal experiments prove that after being loaded with paeoniflorin, the gel has the curative effect of treating mild and moderate psoriasis, the treatment effect is remarkable, and the gel has a wide market application prospect.

The invention provides self-healing hyaluronic acid-gelatin hydrogel as well as a preparation method and application thereof, and belongs to the technical field of hydrogel. According to the invention, modifiable sites of hyaluronic acid and gelatin are modified, and phenylboronic acid modified hyaluronic acid and caffeic acid modified gelatin are chemically crosslinked through boric acid ester to form the hydrogel, so that the problem of insufficient adhesive force of hyaluronic acid and gelatin is solved, and meanwhile, the hydrogel has self-healing ability to adapt to constantly changing wound tissues; the epigallocatechin gallate is introduced into a hydrogel system, so that the hydrogel has excellent biocompatibility and good oxidation resistance at the same time. In addition, the preparation method provided by the invention is mild in reaction condition and simple and convenient to operate, and can be widely applied to the fields of skin dressings, tissue processes and the like.

The invention belongs to the technical field of skin dressings, and particularly relates to a composite hydrogel for promoting wound healing and a preparation method thereof. The composite hydrogel for promoting wound healing comprises the following raw materials in parts by weight: 60-80 parts of a composite core, 3-8 parts of I-type collagen, 8-15 parts of gelatin and 8-15 parts of an inclusion compound, a natural biological base material is adopted as a core carrier, the stability and activity of functional components are improved through a clathrate compound technology, the outer layer accurately removes inflammation stress and provides antibacterial protection through oxidation sensitivity characteristics, the middle layer directionally recruits endogenous stem cells through active peptide to activate the repair potential, and the anti-inflammatory effect is achieved. The composite inner core guides ordered deposition of collagen through a bionic structure to achieve scar repair, and the wound healing quality is remarkably improved.

The invention belongs to the technical field of skin dressings, and particularly relates to an eggshell membrane oxidation regenerated cellulose nanofiber membrane and a preparation method and application thereof. The preparation method comprises the following steps: preparing a substrate film layer from a substrate spinning solution by adopting a microfluidic gas jet spinning method; preparing the composite spinning solution on the surface of the substrate fiber membrane by adopting a microfluidic gas jet spinning method to obtain a medicine-containing membrane layer; the eggshell membrane oxidation regenerated cellulose nanofiber membrane is composed of the base membrane layer and the medicine-containing membrane layer. According to the eggshell membrane oxidized regenerated cellulose nanofiber membrane obtained by the preparation method provided by the invention, the dissolution rate and bioavailability of a medicine are remarkably improved, and the preparation method has excellent process reproducibility, so that the stability of product quality and the consistency between batches are ensured; and a reliable technical support is provided for industrial production of the eggshell membrane oxidation regenerated cellulose nanofiber membrane as a skin auxiliary material.

A cover skin wrap (100), for use with cream (20) on skin (10) is provided. The object of the invention is achieved using a sealing layer on a base layer.