Double-layer bletilla striata dressing

Abstract

The invention relates to double-layer bletilla striata dressing, and belongs to the technical field of biological medicines. The double-layer bletilla striata dressing is composed of a surface layer and a dressing layer, wherein the surface layer is composed of a hemostatic material poorly soluble or insoluble in water, the dressing layer is composed of a bletilla striata porous material having good biocompatibility and being easily soluble in water, for the structural design of interpenetrating network connection between the surface layer and the dressing layer, the integrated forming methodis adopted for realizing physical embedding, and a freeze-drying method is adopted for obtaining a lower dressing layer. The design has the advantages that structure is reasonable, the combination isfirm, the realization is easy, due to the poorly soluble surface layer, the problems that the dressing is difficult to take for use, easily has adhesion, has difficulty in applying, and is large in waste, are solved, due to the porous structure of the easily soluble dressing layer, the dressing rapidly dissolves for forming a protection film, thus the hemostasis efficacy is realized, and the optimal environment for wound healing is created. The dressing is integrally composed of the degradable and absorbable material, and is suitable for being applied to the fields of functional dressing and tissue engineering.

Description

technical field [0001] The invention relates to a double-layer bletilla striata dressing, which belongs to the technical field of biomedicine. Background technique [0002] In the clinical use of surgery, the rapid hemostasis of the wound has an important impact on the postoperative recovery of patients. Bletilla striata is a hemostatic material in traditional Chinese medicine, and its tuber extract, Bletilla striata polysaccharide, has excellent hemostasis and strong antibacterial properties, and is a water-soluble substance. Bletilla striata polysaccharide is widely used in the field of wound dressing because of its excellent astringent hemostasis, antibacterial and anti-inflammatory effects, removing putrefaction and promoting muscle growth, and its biological properties are good, biodegradable, and non-toxic and side effects. The existing Bletilla striata dressing is mainly made into a porous structure to improve its water absorption and then enhance its hemostatic perf...

AI Technical Summary

Problems solved by technology

During use, the gloves worn by the doctor during the operation will be stained with blood, which will cause the dressing to dissolve when the bletilla striata dressing is used to treat the patient's wound, which will cause two problems

The first problem is that the dressing is easy to stick to the glove after dissolving, so that the dressing will be uncovered after covering the wound, which is difficult to achieve the purpose of covering the wound to promote healing; the second problem is that part of the dissolved dressing will be wasted and cannot play its role

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