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Knit With Zones Without Barbs, Method Of Making Same And Prostheses Obtained Therefrom

A braiding and barb technology, applied in the field of patch braiding, can solve the problems of cumbersome and complicated processes, and achieve the effect of optimizing the manufacturing process

Active Publication Date: 2014-09-03
SOFRADIM PROD SAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such a process is cumbersome and complicated

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
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  • Knit With Zones Without Barbs, Method Of Making Same And Prostheses Obtained Therefrom
  • Knit With Zones Without Barbs, Method Of Making Same And Prostheses Obtained Therefrom
  • Knit With Zones Without Barbs, Method Of Making Same And Prostheses Obtained Therefrom

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The following knitted fabrics according to the invention were made on a warp knitting machine:

[0039] Braid A: has the following diagrams according to the ISO11676 standard:

[0040] - Comb B1: 1.0 / 0.1 / /

[0041] - Comb B2: 1.0 / 5.5 / 1.0 / 3.3 / /

[0042] - Comb B3: 2.1 / 5.5 / 3.4 / 0.0 / /

[0043] The individual diagrams of bars B1, B2 and B3 are shown in Figures 1A to 1C .

[0044] Alternatively, the illustration of bar B2 can be replaced by the following:

[0045] 1.0 / 7.7 / 6.6 / 7.7 / /

[0046] Bars B1 and B2 were each made of a monofilament yarn with a diameter of 0.08 mm made of polyethylene terephthalate (PET) purchased from the company SIDER ARC at 1 full across the width of the braiding machine. , 1 empty continuous threading. The melting point of the monofilament yarn made of polyethylene terephthalate (PET) was 258°C.

[0047] The barb-producing bar B3 was continuously threaded with a 0.15 mm diameter heat-fusible monofilament yarn made of polylactic acid over the ...

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Abstract

The present invention relates to an openwork prosthetic knit (1) made from a single piece based on first yarns of biocompatible polymer materials that define a first face (2) and a second face that are opposite one another and on a second biocompatible yarn that generates barbs (3) that protrude outwards from at least said first face, characterized in that said first face comprises at least one zone in which it is provided with said barbs and at least one zone (5) in which it is free of such barbs. It also relates to a process for manufacturing such a knit (1) and to a prosthesis comprising such a knit (1).

Description

technical field [0001] The present invention relates to a prosthetic knit made from a single piece, at least one face of which comprises one or more areas provided with barbs and one or more areas without barbs. Such braids may be particularly useful in the manufacture of prostheses requiring variable fastening properties on the surface of the prosthese, eg for fastening into biological tissue. Background technique [0002] Wall reinforcement patches (eg, for the abdominal wall) are widely used in surgical procedures. These patches are designed to treat hernias by filling in tissue defects either temporarily or permanently. These patches are generally made of biocompatible patch fabric and can have a variety of shapes, such as rectangular, circular or oval, depending on the anatomy they are to accommodate. Some patches are made of fully bioabsorbable yarn and are to disappear after completing their reinforcement, while cell clustering and tissue repair take over. Other pa...

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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Application Information

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IPC IPC(8): D04B21/12A61F2/00
CPCD10B2401/12A61F2/0063A61F2002/0068D06C7/00D04B21/12D10B2403/0111D04B21/20D10B2509/08D10B2501/0632F04C2270/041A61F2240/001
Inventor 朱莉·勒屈弗雷皮埃尔·巴伊
Owner SOFRADIM PROD SAS
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