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Physical bacteria and stick resistant dressing for medical purpose

An anti-adhesive, medical technology, applied in viscous dressings, dressings, medical science, etc., can solve the problems of unhealed, unfavorable wound healing, secondary infection, etc., to avoid secondary damage, promote wound healing, reduce painful effect

Inactive Publication Date: 2004-11-17
江苏雨林医药工程有限公司
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  • Summary
  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

However, due to the adhesion between the gauze and the wound, chemical drugs also have side effects such as irritation and allergy to the wound in varying degrees, so that the wound is repeatedly damaged and damaged, and it cannot be healed for a long time, and even secondary infection
At present, medical dressings mainly use vaseline gauze, saline wet gauze or non-stick film isolation to achieve the purpose of non-stick wounds, but their poor air permeability, moisture absorption and anti-leakage performance are still not conducive to wound healing
Although activated carbon fiber dressings and composite nanomaterial dressings have been developed recently, these products are all added with various chemical foaming agents, which have certain toxic and side effects, and the production cost is relatively high

Method used

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Examples

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Embodiment Construction

[0012] Formulate positively charged antimicrobial biologicals and detackifiers made from emulsified silicone oils, cationic surfactants.

[0013] Antibacterial and anti-adhesive layer: the gauze layer in contact with the skin. Soak the degreasing gauze in antibacterial biological agents for 10-20 minutes, press rollers to remove water, and dry at 80°C-130°C for 5-20 minutes. The adhesive reduces the surface tension of the gauze, and the cationic groups form a positive electric field on the surface of the gauze. When the wound bacteria touch the surface of the gauze, the negatively charged bacteria are attracted to form a covalent bond structure, which in turn destroys the cell wall of the bacteria, making The content of the bacteria is leaked to death, and at the same time, it continuously absorbs the microorganisms and tissue debris on the wound surface, promotes the softening and separation of the necrotic tissue, and quickly kills the bacteria. Molecular groups form a longi...

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Abstract

The invention relates to a physical antibiotic antiseizing medical dressing through sewing five functional layers, the first layer is an antibiotic antiseizing layer, the second layer is a hydrophilic layer made of hydrophilic nonwoven fabrics, the third layer is a macromolecular absorption layer, the fourth layer is an auxiliary layer, the outmost layer is a hydrophobic layer.

Description

technical field [0001] The present invention relates to materials for medical care, in particular to medical dressings with antibacterial, anti-adhesive, hydrophilic and hydrophobic functions. Background technique [0002] Wound healing is the prerequisite for the recovery of body function after trauma, so the research on accelerating wound healing is particularly important. Among them, the development of wound dressings is one of the hot spots in medical research in recent years. Traditional wound care mainly uses degreasing gauze as the material, which is impregnated in disinfection and sterilization drugs to achieve antibacterial effect. However, due to the adhesion of the gauze to the wound, the chemical drugs also have side effects such as irritation and allergy to the wound in varying degrees, so that the wound is repeatedly damaged and damaged, and cannot be healed for a long time, and even secondary infection. At present, medical dressings mainly use vaseline gauze,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F13/02A61L15/22A61L15/44
Inventor 凌晨
Owner 江苏雨林医药工程有限公司
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