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Two-lay machine-knitted structure textile type artificial blood vessel

An artificial blood vessel, textile-type technology, applied in the direction of the catheter, etc., to achieve the effect of tight structure

Inactive Publication Date: 2010-11-17
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the selection of collagen coating materials will be limited by conditions such as degradation performance, human compatibility, and product storage cycle.

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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  • Two-lay machine-knitted structure textile type artificial blood vessel
  • Two-lay machine-knitted structure textile type artificial blood vessel
  • Two-lay machine-knitted structure textile type artificial blood vessel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The outer woven structure is 3 / 1 twill weave, see figure 2 , using 300dtex / 250f polyester filament as warp, 300dtex / 250f polyester filament as weft; inner woven structure is 1 / 3 twill weave, see image 3 , with 30dtex / 24f polyester filament as warp, 30dtex / 24f polyester filament as weft. The outer and inner yarns are interwoven by the binder yarns, see Figure 4 .

[0021] Tubular fabrics are woven on shuttle looms. The warp density of the outer woven fabric is 400 threads / 10cm, and the weft density is 400 threads / 10cm. The warp density of the inner fabric is 1000 threads / 10cm, and the weft density is 1000 threads / 10cm.

[0022] The water seepage of the outer layer is 1100ml / cm 2 ·min·16kPa, the water seepage of the inner layer is 280ml / cm 2 ·min·16kPa.

Embodiment 2

[0024] The outer woven structure is 3 / 1 twill weave, see figure 2 , using 300dtex / 250f polyester filament as warp, 300dtex / 250f polyester filament as weft; inner woven structure is 1 / 3 twill weave, see image 3 , with 30dtex / 24f polyester filament as warp, 30dtex / 24f polyester filament as weft. The outer and inner yarns are interwoven by the binder yarns, see Figure 4 .

[0025] Tubular fabrics are woven on shuttle looms. The warp density of the outer woven fabric is 400 threads / 10cm, and the weft density is 400 threads / 10cm. The warp density of the inner fabric is 1000 threads / 10cm, and the weft density is 1000 threads / 10cm.

[0026] The water seepage of the outer layer is 1200ml / cm 2 ·min·16kPa, the water seepage of the inner layer is 290ml / cm 2 ·min·16kPa.

Embodiment 3

[0028] The outer woven structure is 3 / 1 twill weave, see figure 2 , using 300dtex / 250f polyester filament as warp, 300dtex / 250f polyester filament as weft; inner woven structure is 1 / 3 twill weave, see image 3 , with 30dtex / 24f polyester filament as warp, 30dtex / 24f polyester filament as weft. The outer and inner yarns are interwoven by the binder yarns, see Figure 4 .

[0029] Tubular fabrics are woven on shuttle looms. The warp density of the outer woven fabric is 400 threads / 10cm, and the weft density is 400 threads / 10cm. The warp density of the inner fabric is 1000 threads / 10cm, and the weft density is 1000 threads / 10cm.

[0030] The water seepage of the outer layer is 1300ml / cm 2 ·min·16kPa, the water seepage of the inner layer is 300ml / cm 2 ·min·16kPa.

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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Abstract

The present invention relates to a textile type artificial blood vessel with double-layer machine-woven structure. It is characterized by that it includes outer layer machine-woven structure whose water permeability is 1000-3000 ml / sq.cm.min.16kPa and inner layer machine-woven structure whose water permeability is 250-300 ml / sq.cm.min.16kPa, and adopts stitching warp or stitching weft to make theabove-mentioned outer layer machine-woven structure and inner layer machine-woven structure be combined together so as to obtain the invented artificial blood vessel.

Description

technical field [0001] The invention relates to an artificial blood vessel, in particular to a textile-type artificial blood vessel with a double-layered woven structure. Background technique [0002] In the 1950s, the manufacture of textile-type artificial blood vessels began after the observation of cells growing on threads dipped in blood. Since then, the selection of suitable fiber materials and ideal fabric structure has become the focus of artificial blood vessel research. Today, more than 50 years later, textile artificial blood vessels have been widely used in clinics to replace damaged blood vessels in the human body, and have achieved good clinical results. However, although the textile artificial blood vessel has been widely used in clinical practice, due to the functions of promoting the ingrowth of cells and tissues and avoiding blood oozing of the vessel wall during surgery, an ideal textile structure is sought to obtain a textile artificial blood vessel with ...

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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Patent Type & Authority Patents(China)
IPC IPC(8): A61L29/06
Inventor 丁辛李毓陵王璐杨旭东
Owner DONGHUA UNIV
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