Compound dressing with high liquid absorption performance and preparation method of compound dressing

A high-performance, high-absorbing technology, applied in absorbent pads, pharmaceutical formulations, pharmaceutical sciences, etc., can solve problems such as poor biocompatibility, poor mechanical properties, adverse environmental effects, etc., achieve high porosity, good controllability, Significant social benefits
CN106344952AInactive Publication Date: 2017-01-25QINGDAO CHENLAND MARINE BIOTECH CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
QINGDAO CHENLAND MARINE BIOTECH CO LTD
Publication Date
2017-01-25
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention relates to compound dressing with high liquid absorption performance and a preparation method of the compound dressing. The compound dressing is prepared from chitosan serving as a raw material and consists of a supporting layer and a functional layer, wherein the supporting layer is functional nonwoven cloth; the functional layer is prepared by performing water dissolving, macromolecular crosslinking, foaming, freeze drying and the like on carboxymethyl chitosan. The compound dressing is high in mechanical property and pore-forming property; furthermore, by the compound design of a dual-layer structure, the liquid absorption performance is higher than that of common dressing, and the compound dressing is suitable for perpendicular absorption application. Chitosan is a natural macromolecular polymer and belongs to aminopolysaccharide, so that the dressing is high in mechanical property, high in seepage absorption, and also high in biological compatibility, degradability and nontoxicity, can induce tissue regeneration and remodeling, can effectively promote healing of a wound, and is a more ideal healing promotion material.
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Description

technical field

[0001] The invention belongs to the field of medical devices, and relates to a composite dressing and a production process thereof, in particular to a non-woven dressing made of chitosan and cotton polysaccharide as raw materials, which is suitable for tissue repair with high mechanical strength and high liquid absorption. A biomedical material, the dressing is suitable for covering and treating burn wounds, trauma wounds, chronic ulcer wounds, decubitus wounds, infected wounds, and surgical wounds. Background technique

[0002] Medical dressings are a class of clinical medical materials that temporarily cover burns, ulcers, wounds and other wounds. Its main function is to control the exudate of the wound and protect the wound from external sources such as bacteria and dust particles. With the accelerated pace of modern life and the increasing demand for medical care, the demand for medical dressings is also increasing year by year. From a global perspective,...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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