Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Novel multifunctional wound dressing for treating chronic wounds

A chronic wound and multifunctional technology, applied in the field of medical materials, can solve the problems of poor antibacterial and anti-inflammatory effects and high prices, and achieve the effects of easy industrial scale production, short product process, and reduced wound damage

Inactive Publication Date: 2021-08-27
周建大
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention intends to provide a new multifunctional wound dressing for treating chronic wounds, which solves the problems of high price and poor antibacterial and anti-inflammatory effects of existing medical accessories

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Novel multifunctional wound dressing for treating chronic wounds
  • Novel multifunctional wound dressing for treating chronic wounds
  • Novel multifunctional wound dressing for treating chronic wounds

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A new multifunctional wound dressing for treating chronic wounds, including a base layer, one side of the base layer is provided with a dressing mesh made of copper alloy wire and cotton spinning, and the copper alloy wire and cotton spinning adopt an embedded composite spinning method Wear woven into dressing mesh. The preparation method of the above-mentioned copper alloy wire adopts the following steps: Utilize the vacuum gas protection smelting technology and the down-drawing continuous casting technology to make copper alloy rods, the vacuum gas protection smelting technology can effectively prevent the metal from being oxidized, and make the casting surface more smooth Castings are free of pores, defects and impurities, etc.; at the same time, the down-drawing continuous casting technology can control the density and precision of the material to the greatest extent by drawing copper alloy rods from the melt, and avoid shrinkage cavities or pores. Copper alloy rods...

Embodiment 2

[0038] The difference between this example and Example 1 is that the diameter of the copper alloy ultrafine wire is different, and the diameter of the copper alloy wire obtained in this example is 40 μm. The chemical composition in the copper-iron alloy is percentage by weight: iron (Fe): 1%, and the balance is copper (Cu). The diameter of the iron alloy ultra-fine microwire is 40 μm, the deformation rate is 7%, its tensile strength is 1220Mpa, and the elongation rate after breaking is 10.4%;

[0039] The qualitative antibacterial performance testing method of the wound dressing of this example is the same as in Example 1, and the results show that the wound dressing of this example has antibacterial effects on ATCC27853, Sam25923, MRSA, and ATCC22019.

[0040] Quantitative measurement: dilution plate method

[0041] Take the ATCC27853 strain solution (concentration 4.5×108CFU / mL) and add it dropwise to the blank control and the wound dressing of this embodiment. Use sterili...

Embodiment 3

[0043] The difference between this example and Example 1 is only that the diameter of the copper alloy ultrafine wire is different, and the diameter of the copper alloy wire obtained in this example is 55 μm. The chemical composition in the copper-iron alloy is percentage by weight: iron (Fe): 3%, and the balance is copper (Cu). The diameter of the obtained copper-iron alloy bar is 12 mm. The diameter of the iron alloy ultrafine microwire is 55 μm, the deformation rate is 6%, its tensile strength is 1120Mpa, and the elongation rate after breaking is 20.1%;

[0044] The qualitative antibacterial property testing method of the wound dressing of this example is the same as that of Example 1, and the results show that the wound dressing of this example has antibacterial effects on ATCC27853, Sam25923, MRSA, and ATCC22019.

[0045] Quantitative measurement: dilution plate method

[0046] Take the ATCC27853 strain solution (concentration 4.5×108CFU / mL) and add it dropwise to the bl...

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
Login to View More

PUM

PropertyMeasurementUnit
diameteraaaaaaaaaa
diameteraaaaaaaaaa
elongation at breakaaaaaaaaaa
Login to View More

Abstract

The invention discloses a novel multifunctional wound dressing for treating chronic wounds, and particularly relates to the technical field of medical materials. The novel multifunctional wound dressing for treating chronic wounds comprises a base layer, a dressing net woven by copper alloy wires and cotton spinning wires in a penetrating mode is arranged on one side of the base layer, and the cotton spinning wires are made of a degreased cotton yarn material. According to the technical scheme, the problems that existing medical auxiliary materials are high in price and poor in antibacterial and anti-inflammatory effect are solved, and the antibacterial property of the dressing can be enhanced.

Description

technical field [0001] The invention relates to the technical field of medical materials, in particular to a novel multifunctional wound dressing for treating chronic wounds. Background technique [0002] The repair and regeneration of chronic wounds has always been a key point in medical development and clinical treatment. With the continuous development of my country's social economy, changes in lifestyle and the arrival of an aging population, chronic refractory wounds are increasing year by year, such as: the incidence of diabetic foot, pressure sores, chronic vascular ulcers and severe trauma continues to rise, leading to infection Chronic wounds have become a difficulty and burden in clinical treatment. [0003] At present, the clinical treatment of chronic wounds is mainly in the form of external application of medical dressings. Its main function is to allow wound exudate to evaporate as soon as possible, and at the same time prevent harmful bacteria from invading th...

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): A61L15/18A61L15/40A61L15/42A61L15/44A61L15/46A61F13/00C22C9/00C22C1/02B22D11/04C22F1/08C22F1/02C21D1/26
CPCA61L15/42A61L15/18A61L15/40A61L15/44A61L15/46A61F13/00063C22C9/00C22C1/02B22D11/004B22D11/04C22F1/08C22F1/02C21D1/26A61L2300/102A61L2300/41A61L2300/412A61F13/01034A61F13/01012A61F13/01029A61F13/01017
Inventor 周建大吴先睿李萍申一宇李泽楠
Owner 周建大
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com