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

Large-pore light hernia repair mesh and knitting method thereof

A light-weight hernia and patch technology, applied in medical science, prosthesis, etc., can solve problems such as foreign body reaction, limited abdominal wall movement, and surgical stiffness, and achieve the goals of reducing chronic pain in the abdominal wall, strong anti-infection ability, and improving comfort Effect

Active Publication Date: 2016-01-27
SHANGHAI XINHUA RUISI MEDICAL SCI & TECH
View PDF9 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional densely woven heavy meshes can cause surgical site stiffness, foreign body reactions, and restricted abdominal wall motion

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
  • Large-pore light hernia repair mesh and knitting method thereof
  • Large-pore light hernia repair mesh and knitting method thereof
  • Large-pore light hernia repair mesh and knitting method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] 1. Selection of raw materials for macroporous light non-absorbable hernia repair patch

[0045] Medical PP, PET, PVDF, and PTFE are all non-absorbable materials with good mechanical and biocompatibility. Among them, medical PP and PET hernia repair patches are generally used for placement outside the abdominal cavity, and are currently the most widely used patch types. PTFE and PVDF are inert materials, and compared with the same type of PP and PET patches, they can reduce the adhesion between the intestine and the mesh in the body. Non-absorbable mesh can also be combined with anti-adhesion material or absorbable material to form a composite patch that can be placed in the abdominal cavity.

[0046] In this embodiment, medical polypropylene monofilament is selected as a raw material, and its properties are shown in Table 1.

[0047] Table 1 Material selection and performance

[0048] Raw material type

diameter (mm)

Breaking strength (g / d)

Elongat...

Embodiment 2

[0071] 1. Selection of raw materials for macroporous light non-absorbable hernia repair patch

[0072] In this embodiment, medical polypropylene monofilament is selected as the raw material, and the properties of the raw material are shown in Table 5.

[0073] Table 5 Material selection and performance

[0074] Raw material type

diameter (mm)

Breaking strength (g / d)

Elongation at break (%)

PP monofilament

0.2

5.8

30

[0075] 2. Warping process

[0076] This embodiment adopts section warping, that is, all required monofilament raw materials are divided into several sections and wound into narrow section warp beams, and then the section warp beams are assembled into warp beams on the warp knitting machine.

[0077] 3. Weaving process parameters of macroporous lightweight non-absorbable hernia repair patch

[0078] This macroporous lightweight non-absorbable hernia repair patch is woven through the warp knitting process in textile...

Embodiment 3

[0092] 1. Selection of raw materials for macroporous light non-absorbable hernia repair patch

[0093] In this embodiment, medical polyvinylidene fluoride monofilament is selected as the raw material, and the properties of the raw material are shown in Table 8.

[0094] Table 8 Material selection and performance

[0095] Raw material type

diameter (mm)

Breaking strength (g / d)

Elongation at break (%)

PVDF monofilament

0.08

3.2

25

[0096] 2. Warping process

[0097] This embodiment adopts section warping, that is, all required monofilament raw materials are divided into several sections and wound into narrow section warp beams, and then the section warp beams are assembled into warp beams on the warp knitting machine.

[0098] 3. Weaving process parameters of macroporous lightweight non-absorbable hernia repair patch

[0099] This macroporous lightweight non-absorbable hernia repair patch is woven through the warp knitting proce...

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
Apertureaaaaaaaaaa
Gram weightaaaaaaaaaa
Diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a large-pore light hernia repair mesh. The structure of the hernia repair mesh is in a double-carded perforating queenscord atlas net structure knitted by medical synthetic monofilaments. The hernia repair mesh is mesh knitted fabric and has rhombus-shaped meshes in a surface thereof. The hernia repair mesh ranges from 2.6 to 7.5 mm in pore diameter and ranges from 18 to 55g / m2 in gram weight. Additionally, the invention further discloses a knitting method of the large-pore light hernia repair mesh.The large-pore light hernia repair mesh has following beneficial effects: the large-pore light hernia repair mesh is good in structural compliance, low in weight, large in pores and high in ability of anti-infection, which is desirable to ingrowth of fibroblasts and penetration of macrophage and leucocyte; chronic abdominal wall pains and foreign body sensation of a patient are relieved so that comfort level of the patient is greatly increased; the large-pore light hernia repair mesh can be tailored to be a flat sheet, a mesh plug by hot pressing or a specially-designed three-dimensional structure and serves as a part of a composite mesh; and the large-pore light hernia repair mesh has fine an application prospect.

Description

technical field [0001] The invention relates to a hernia repair sheet, in particular to a large-hole light-weight hernia repair sheet and its weaving method. Background technique [0002] Hernia disease, commonly known as hernia, is a tissue or organ in some parts of the human body that leaves its original position and enters another part through some defects, gaps and weaknesses of the human body, resulting in dysfunction of some organs. Hernia disease is a frequently-occurring disease in surgery, especially abdominal wall hernia is the most common. Surgical treatment is the most effective way to treat hernia, including traditional suture repair and tension-free hernia repair using repair materials. At present, tension-free repair has become the mainstream surgical method for the treatment of adult hernias due to its advantages of less trauma, less postoperative pain, faster recovery, shorter learning curve for surgical operation, and lower recurrence rate. [0003] In te...

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
IPC IPC(8): A61F2/02
Inventor 隋纹龙钱禹一王俊杰
Owner SHANGHAI XINHUA RUISI MEDICAL SCI & TECH
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