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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 catheters, etc., to achieve the effect of tight structure

Inactive Publication Date: 2007-11-14
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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The woven structure of the outer layer is 3 / 1 twill weave, as shown in Figure 2, using 300dtex / 250f polyester fiber filaments as warp yarns, and 300dtex / 250f polyester fiber filaments as weft yarns; the inner layer woven structure is 1 / 3 twill weave , see Fig. 3, make warp with 30dtex / 24f polyester filament, 30dtex / 24f polyester filament make weft. The outer yarn and the inner yarn are interwoven through the binder yarn, see Figure 4.

[0021] Tubular fabrics are woven on shuttle looms. The warp density of the outer layer 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 permeability 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 woven structure of the outer layer is 3 / 1 twill weave, as shown in Figure 2, using 300 dtex / 250f polyester fiber filaments as warp yarns and 300dtex / 250f polyester fiber filaments as weft yarns; the inner layer woven structure is 1 / 3 twill weave Organization, see Fig. 3, make warp with 30dtex / 24f polyester filament, 30dtex / 24f polyester filament make weft. The outer yarn and the inner yarn are interwoven through the binder yarn, see Figure 4.

[0025] Tubular fabrics are woven on shuttle looms. The warp density of the outer layer 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 permeability 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 woven structure of the outer layer is 3 / 1 twill weave, as shown in Figure 2, using 300dtex / 250f polyester fiber filaments as warp yarns, and 300dtex / 250f polyester fiber filaments as weft yarns; the inner layer woven structure is 1 / 3 twill weave , see Fig. 3, make warp with 30dtex / 24f polyester filament, 30dtex / 24f polyester filament make weft. The outer yarn and the inner yarn are interwoven through the binder yarn, see Figure 4.

[0029] Tubular fabrics are woven on shuttle looms. The warp density of the outer layer 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 permeability of the outer layer is 1300ml / cm 2 ·min·16kPa, the water seepage of the inner layer is 300ml / cm 2 · min · 16kPa.

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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 the above-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 artificial blood vessel whose pipe wall is a double-layer woven structure. Background technique [0002] In the 1950s, since the phenomenon of cells growing on silk soaked in blood was observed, the history of fabricating artificial blood vessels began. Since then, the selection of suitable fiber materials and ideal fabric structures 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 textile artificial blood vessels have been widely used clinically, due to the function of promoting cell tissue growth and avoiding blood leakage during surgery, it is necessary to look for a textile artificial blood vessel with an ideal textile structure to obtain suitable wall p...

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): A61L29/06
Inventor 丁辛李毓陵王璐杨旭东
Owner DONGHUA UNIV
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