Machine woven artificial trachea

A technology of artificial trachea and outer tube, which is applied to devices with tubular structures of the human body, fabrics, textiles, etc., can solve the problems of difficult control and cumbersome fixing of elastic materials, and achieve the difficulty of simplifying operation, simplifying the difficulty of design and operation, and ensuring diameter effect on support performance

Inactive Publication Date: 2011-04-13
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method can improve the radial strength of the artificial trachea, the fixing of the elastic material is

Method used

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  • Machine woven artificial trachea
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  • Machine woven artificial trachea

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0024] Example 1

[0025] Taking the double-layer tissue as an example, the weaving method of this artificial trachea structure is introduced. The material of artificial trachea adopts 90D / 36f polyester multifilament and polypropylene monofilament with diameter of 0.18mm; the tissue adopts 2 / 1 right twill weave on the outer surface, 1 / 2 right twill weave in the inner weave, and the surface warp joint and the inner warp joint. Alternate use of bilayer tissue. The warp and weft yarns of the surface layer are made of polypropylene monofilament, and the warp and weft yarns of the inner layer are made of polyester multifilaments. Table warp: table latitude = 1:2, inner warp: inner latitude = 1:2. The weaving parameters are shown in Table 1. After weaving, its organizational chart is as follows image 3 shown.

[0026] Table 1 Weaving parameters

[0027] Warp density*Weft density (root / 10cm)

Example Embodiment

[0028] Example 2

[0029] Taking weft duplex as an example, the weaving method of this kind of artificial trachea structure is introduced. The material of the artificial trachea is the same as that of Example 1; the tissue adopts a weft double weft formed by 1 / 5 right twill weave on the outer surface and 2 / 1 right twill weave in the inner weave. The warp is made of polyester multifilament; the outer weft is made of polypropylene monofilament, and the inner weft is made of polyester multifilament. Table weft: inner weft = 1:1. The weaving parameters are shown in Table 2. After weaving, its organizational chart is as follows Figure 4 shown.

[0030] Table 2 Weaving parameters

[0031] Warp density*Weft density (root / 10cm)

[0032] Number of reeds worn (in / reed)

Example Embodiment

[0033] Example 3

[0034] Taking weft duplex as an example, the weaving method of this kind of artificial trachea structure is introduced. The artificial trachea is made of 180D PLA multifilament and PDS monofilament with a diameter of 0.23mm; the weft double weft is formed by 1 / 7 right twill weave on the surface and 3 / 1 right twill weave in the inner weave. The warp is PLA multifilament; the outer weft is PDS monofilament, and the inner weft is PLA multifilament. Table weft: inner weft = 1:1. The weaving parameters are shown in Table 3 below. After weaving, its organizational chart is as follows Figure 5 shown.

[0035] Table 3 Weaving parameters

[0036] Warp density*Weft density (root / 10cm)

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Abstract

The invention provides a machine woven artificial trachea. The machine woven artificial trachea is characterized by comprising an inner trachea wall and an outer trachea wall, wherein double-layer tissues or double-weft tissues are adopted by the inner trachea wall and the outer trachea wall. Through the machine woven artificial trachea, the radial supporting performance of the machine woven artificial trachea is guaranteed, the design and operating difficulty of the prior art is simplified, and a differentiable machine woven artificial trachea can be quickly and conveniently obtained by varying different binding tissues and basic tissues.

Description

technical field [0001] The invention relates to a woven artificial trachea, which belongs to the technical field of medical artificial human organs. Background technique [0002] The artificial trachea is a mesh tube made of medical polymer materials to replace the trachea or part of the bronchi that have been removed due to cancer or accidental injury. The artificial trachea can heal or ingrow the attached tissue, and can withstand the deformation caused by the pressure from the surrounding tissue. A common problem of woven artificial trachea is insufficient radial strength. The current solution is to fix a helical elastic filament outside the common artificial trachea. Although the radial strength of the artificial trachea can be improved by adopting this method, the fixing of the elastic material is cumbersome; moreover, the manufacturing process needs to be implemented step by step, and the control is relatively difficult. Contents of the invention [0003] The obje...

Claims

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Application Information

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IPC IPC(8): D03D3/02D03D13/00A61F2/04
Inventor 李毓陵李倩王文祖杨夫全王云云
Owner DONGHUA UNIV
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