Functional composite dressing with drug sustained release and self-antibacterial effects and preparation method thereof

A slow-release, drug-based technology, applied in dressings, viscous dressings, non-adhesive dressings, etc., can solve problems such as not being able to be used for a long time, easy to breed bacteria, and easy to stick to granulation, so as to reduce the frequency, reduce the chance of re-injury, reduce The effect of wound scars
CN108939128AInactive Publication Date: 2018-12-07吉林康众新材料科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
吉林康众新材料科技有限公司
Publication Date
2018-12-07
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention disclose a functional composite dressing with drug sustained release and self-antimicrobial effects and a preparation method thereof, belongs to the technical field of medical devices, and solves the technical problems that the existing polyurethane foam dressing has low tendency to breed bacteria, cannot be used for a long time, and has low tendency to adhere with granulation. The functional composite dressing is composed of a wound contact layer, a foam absorbing layer and an external protective layer arranged orderly from inside to outside, wherein the wound contact layer is acomposite material of a slow release medicine and degradable polylactic acid, and the surface of the wound contact layer contains permeation micropores; the foam absorbing layer is an aqueous polyurethane foam material, and the foam absorbing layer has an open cell unit. The external protective layer is thermoplastic polyurethane with a dense surface. The dressing has excellent antimicrobial effect, has low tendency to adhere to a wound, is low in frequency of dressing change, increases the comfort of patients while reducing the degree of skin scars, and is especially suitable for the treatment of wounds caused by device trauma, burns, bacterial fester and ulceration and other reasons.
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Description

technical field

[0001] The invention relates to a functional composite dressing with sustained drug release and self-antibacterial effects and a preparation method thereof, which belongs to the technical field of medical devices and is especially suitable for wound treatment of skin damage caused by device wounds, burns, bacterial infection and festering. Background technique

[0002] Medically, the treatment of skin wounds is usually to cover the wound with a layer of medical dressing to prevent bacteria, dust and other debris from infecting the wound and protect the wound from healing. With the patients' requirements for comfortable experience in the process of wound healing, the types of dressings have also been continuously innovated and improved, gradually developing from traditional medical gauze to today's polyurethane foam wet dressings.

[0003] Due to its excellent hydrophilic absorption, good air permeability and high mechanical strength, polyurethane foam dressin...

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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