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

Composite polypropylene mesh and preparation method thereof

A technology for compounding polypropylene and polypropylene mesh, which is used in medical science, prosthesis, etc., can solve the problems of easy separation, fast degradation of chitosan, and incompatibility between chitosan film and polypropylene mesh. , to achieve the effect of not easy to degrade and induce fascia reconstruction

Active Publication Date: 2015-06-24
海南德拉米克投资有限公司
View PDF8 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the degradation rate of chitosan in the above-mentioned polypropylene mesh is fast, and the combination of the chitosan hanging film and the polypropylene mesh is not tight and easy to separate, which is not conducive to clinical use.

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
  • Composite polypropylene mesh and preparation method thereof
  • Composite polypropylene mesh and preparation method thereof
  • Composite polypropylene mesh and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0028] The present invention also provides a kind of preparation method of composite polypropylene mesh, comprises the following steps:

[0029] A) the polypropylene mesh is placed in the dopamine aqueous solution to react to obtain the polydopamine-polypropylene mesh;

[0030] B) The polydopamine-polypropylene mesh is placed in a fibroblast growth factor solution for reaction, and the polypropylene mesh is compounded.

[0031] Before the polypropylene mesh is reacted with the dopamine aqueous solution, the present invention first pretreats the polypropylene mesh, that is, the polypropylene mesh is placed in an ethanol solution with a volume fraction of 75% to 95% for surface treatment , to remove impurities, and can achieve the purpose of sterilization.

[0032] In the invention, the pretreated polypropylene mesh is placed in the dopamine aqueous solution for reaction to obtain the polydopamine-polypropylene mesh.

[0033] The dopamine aqueous solution of the present invent...

Embodiment 1

[0045] The polypropylene mesh is placed in an ethanol solution with a volume fraction of 75% for surface treatment to obtain a pretreated polypropylene mesh.

[0046] Preparation of dopamine solution: 10 mM Tris-HCl buffer solution was used to prepare a dopamine solution with a concentration of 2 mg / ml and a pH value of 8.5. The dopamine aqueous solution is sterilized by filtering through a 0.22 μm filter membrane.

[0047] Soak the pretreated polypropylene mesh in dopamine solution, react at 25° C. for 12 hours, and rinse with deionized water for 5 times to obtain a polydopamine-polypropylene mesh.

[0048] Take out the above-mentioned polydopamine-polypropylene mesh, soak it in the fibroblast growth factor buffer solution with a concentration of 10 μg / ml and a pH value of 8.5, the buffer solution is 10 mM Tris-HCl buffer solution, at 25 ° C After reacting for 12 hours, take it out, rinse it with deionized water for 5 times, and finally dry it with argon flow to obtain a com...

Embodiment 2

[0106] The polypropylene mesh is placed in an ethanol solution with a volume fraction of 75% for surface treatment to obtain a pretreated polypropylene mesh.

[0107] Preparation of dopamine solution: use 10 mM Tris-HCl buffer to prepare a dopamine solution with a concentration of 1 mg / ml and a pH value of 9.0. The dopamine aqueous solution is sterilized by filtering through a 0.22 μm filter membrane.

[0108] Soak the pretreated polypropylene mesh in dopamine solution, react at 25° C. for 12 hours, and rinse with deionized water for 5 times to obtain a polydopamine-polypropylene mesh.

[0109] Take out the above-mentioned polydopamine-polypropylene mesh, and soak it in a fibroblast growth factor buffer solution with a concentration of 15 μg / ml and a pH value of 9.0. After reacting for 12 hours, take it out, rinse it with deionized water for 5 times, and finally dry it with argon flow to obtain a composite polypropylene mesh.

[0110] The properties of polypropylene mesh, po...

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
concentrationaaaaaaaaaa
concentrationaaaaaaaaaa
Login to View More

Abstract

The invention discloses a composite polypropylene mesh. The composite polypropylene mesh is bonded by a polypropylene mesh and a fibroblast growth factor through polydopamine. In the premise condition of not changing the mechanical strength and the surface structure of the original polypropylene mesh, the fibroblast growth factor is grafted on the surface of the polydopamine after the polydopamine is grafted on the surface of the polypropylene mesh, and the composite mesh separation phenomenon cannot be generated. Simultaneously the fibroblast growth factor is hard to degrade in the body, the fibroblast growth can be induced and then the fascia reconstruction is induced.

Description

technical field [0001] The invention belongs to the technical field of tissue engineering, and in particular relates to a composite polypropylene mesh and a preparation method thereof. Background technique [0002] Female pelvic floor dysfunction is a common disease and frequently-occurring disease in middle-aged and elderly women over 50 years old, which seriously affects the life and health of middle-aged and elderly women. The current treatment method is to use some mesh belts or sheets of medical polypropylene synthetic materials to reconstruct the pelvic floor function through surgery. [0003] The pelvic floor functional reconstruction polypropylene mesh designed by Johnson & Johnson, with a dry weight of about 50g / m 2 , the researchers improved the weaving process of the mesh, making each fiber of the mesh thinner, larger in aperture, and lighter in weight, in order to reduce side effects. Although the weaving process has been improved, the pure polypropylene mesh s...

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): A61L27/54A61L27/18
Inventor 崔文国陈信良
Owner 海南德拉米克投资有限公司
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