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Double-layer weaving polyester artificial vessel

An artificial blood vessel, double-layer technology, applied in the field of artificial blood vessel and artificial blood vessel manufacturing, can solve the problems of inability to promote the endothelialization of the inner wall of the blood vessel and the large amount of bleeding, so as to avoid pre-coagulation operation, good growth and healing, and avoid needles Effect of pinhole phenomenon

Inactive Publication Date: 2010-05-26
林增华 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But in fact, animal experiments have shown that the amount of blood oozing is large when the two are implanted, and preoperative pre-coagulation is still required, and they cannot promote the endothelialization of the inner wall of the blood vessel.

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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  • Double-layer weaving polyester artificial vessel
  • Double-layer weaving polyester artificial vessel
  • Double-layer weaving polyester artificial vessel

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] The present invention adopts the 5 / 2 weft surface reinforced satin weave (such as image 3 ) and 4 / 4 floating tissue (such as Figure 4 ) are combined into a double-layer structure, which overcomes the defect of large blood leakage of the previous artificial blood vessels, and can promote the process of adhesion, invasion and growth of recipient tissues on the outer wall of the blood vessel, and endothelialization of the inner wall. The clinical application indicators of artificial blood vessels have been comprehensively improved.

[0021] The 5 / 2 weft surface that the present invention adopts strengthens the satin weave (as image 3 ), the warp is double floating and three sinking, that is, the warp is lifted twice, and there are two wefts below; the warp sinks three times, and there are three wefts above.

[0022] The present invention is to make two sinking wefts and three floating wefts approach, merge and overlap. Under this condition, the tissue points are not ...

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Abstract

Double layered weaving artificial blood vessel made of terylen fiber can provide good suturing performance and promote affinity, adhesion and intrusive growth of receptor tissue. The artificial bloodvessel is compact enough, has low porosity thereby exempting blood pre-coagulation in operation. The artificial blood vessel is prepared from 5 / 2 filling face soleil weave as inner wall of blood vessel and 4 / 4 huckaback weave as outer wall of blood vessel by combine weaving into double-layer structure with combination of soleil weave and tabby as inner layer and huckaback weave as outer layer.

Description

technical field [0001] The invention relates to the field of medical artificial organs, in particular to an artificial blood vessel implanted in an animal or a human body and a manufacturing method of the artificial blood vessel. Background technique [0002] Artificial blood vessels are widely used in the field of surgery. Artificial blood vessels are used to replace autologous diseased blood vessels, or to be implanted as bypass vessels when autologous blood vessels are blocked, or to establish new vascular pathways in vascular reconstruction. [0003] The most commonly used prosthetics are fabric prostheses, which can be woven, knitted or velvet. Early use was usually of the woven type, and later knitted prostheses were considered superior to woven prostheses in many respects. In particular, it is due to the high porosity, softness, and good elasticity of the knitted fabric, and the fluffy fibers on the inner wall promote the healing of vascular endothelialization, that ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/06D03D1/00A61L27/14
Inventor 林增华孙立忠郑军黄福华潘旭东
Owner 林增华