Chitosan wound dressing

A wound dressing, chitosan technology, applied in the direction of dressings, adhesive dressings, non-adhesive dressings, etc., can solve the problems of limiting wound type and location, etc.

CN110478520AInactive Publication Date: 2019-11-22娄露
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2019-11-22
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a chitosan wound dressing. The chitosan wound dressing is of a layered structure comprising a functional layer, and the functional layer is formed by a chitosan healing promoting layer and a chitosan hemostatic layer. The wound dressing directly makes contact with red blood cells and blood platelets so as to exert the effect without relying on an internal hemostatic mechanism; and irritability is not caused, heat is not released, and the effect can be exerted under the condition of hypothermia. The chitosan wound dressing is suitable for wound fixing, nursing and dressing change of gynecological and obstetric surgery, endoscopic minimally invasive surgery, general surgery, orthopaedic open wounds, cosmetic plastic surgery, outpatient and emergency trauma, superficial skin ulcers and the like as well as various punctures, catheters and cathetering, and nursing and dressing change of wounds and wound surfaces of personal bruises, contusions, knife wounds, small-area burns and the like. The chitosan wound dressing has the effects of hemostasis, healing promoting, analgesia, antibiosis and scar generation inhibition.
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Description

Technical field:

[0001] The invention belongs to the technical field of hemostatic materials, more specifically, the invention relates to a chitosan wound dressing for promoting wound healing. Background technique:

[0002] The skin is an important organ of the human body. It plays a role in controlling body temperature, preventing infection, immunity and sensing. Extensive damage to the skin may result from trauma, abrasions, skin ulcers, and burns. Injured skin can easily lead to bacterial infection, loss of body fluids and complications. In the prior art, wound dressings are usually used to protect the wound, absorb exudate, prevent wound infection, maintain a moist environment of the wound and promote wound healing. The wound dressing has the following requirements: 1) It has a softness similar to that of human skin, and it can maintain a certain shape and strength when it is wet; 2) It can maintain a moist environment on the wound surface and has a good ability to abs...

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Embodiment Construction

[0014] The structure of the chitosan wound dressing of the present invention and its performance will be further described below in conjunction with the specific invention and the accompanying drawings, so as to help those skilled in the art to have a more complete, accurate and accurate understanding of the inventive concept and technical solutions of the present invention. in-depth understanding. Invention 1 The chitosan wound dressing described in Invention 1 is a layered material composed of a backing layer 10 , a common chitosan non-woven fabric 20 , a chitosan particle layer 30 and a cover 40 . Its functional components are chitosan non-woven fabric layer and chitosan particle layer, and does not contain other functional components. The common chitosan non-woven fabric has a thickness of 0.3-0.4 mm and a gram weight of 40-50 g / m 2 , which cannot absorb moisture and exudate, and its composition is glucosamine polymer. The chitosan granular layer is composed of rice-yello...