Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Machine knitting artificial pleat-free blood vessel and its making method

A technology of artificial blood vessels and blood vessels, applied in the manufacture of artificial blood vessels and the field of artificial blood vessels, can solve the problems of affecting the direction of blood flow, the compression resistance of the tube wall, and the unsatisfactory flexural strength, so as to reduce the possibility of thrombosis and improve the compression resistance. effect on flexural strength

Inactive Publication Date: 2008-01-30
无锡莱福纶生物材料有限公司
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Various woven artificial blood vessels with different forms or structures composed solely of fibers are shown in Figure 1. The common problem of this kind of blood vessels is that the wall composed of fibers is unsatisfactory in terms of compressive strength and flexural strength, and cannot meet the requirements. Human body shoulders, elbows, wrists, knees and other joints with frequent bending and large bending angles, as well as the back of the hands, insteps and other parts close to the epidermis and subjected to large external pressure require vascular reconstruction surgery; in addition, the groove on the inner wall of the blood vessel 1 will directly affect the direction of blood flow

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Machine knitting artificial pleat-free blood vessel and its making method
  • Machine knitting artificial pleat-free blood vessel and its making method
  • Machine knitting artificial pleat-free blood vessel and its making method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] As shown in the figure: the vascular tube blank 5 is interwoven with warp and weft yarns, and there is an elastic belt 3 on the outer surface of the vascular tube blank 5. The material of the elastic belt can be polymer material or memory alloy, and the shape can be spiral or network. Shape, the strength of the material can be selected according to the compression or bending strength of different blood vessels. When supported by network-shaped memory alloy wires, it can meet the needs of interventional operations; the interweaving sequence of warp and weft yarns is determined by the amount of water seepage.

[0015] On the outer wall of the tube blank 5, there are yarn loops 4 that are picked at intervals by warp yarns in a yarn-picking manner. The yarn loops 4 are arranged on the outer wall of the tube blank 5 in a spiral or network shape, and the elastic belt 3 penetrates each yarn loop. 4, the loop 4 is positioned on the outer wall of the tube blank 5 to form a woven...

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
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention relates to an artificial blood vessel and its production method. Its main technical scheme lies in that the outer wall of its vessel blank has several coils which are spaced and made up by warp yarn in the taking-out mode, and the coils are arranged on the outer wall of vessel blank in spiral form or network form, and elastic band is passed through the coils, and positioned on the outer wall of the vessel blank by means of coils. Said invented blood vessel can raise anti-bending strength and anti-compressing strength of artificial blood vessel.

Description

technical field [0001] The invention relates to the field of medical artificial organs, in particular to an artificial blood vessel and a method for manufacturing the artificial blood vessel. Background technique [0002] Various woven artificial blood vessels of different forms or structures composed solely of fibers are shown in Figure 1. The common problem of this kind of blood vessels is that the wall composed of fibers is not ideal in terms of compressive strength and flexural strength, and cannot meet the requirements Human shoulders, elbows, wrists, knees and other joints with frequent bending and large bending angles, as well as the back of the hands, insteps and other parts close to the epidermis and subjected to large external pressure require vascular reconstruction surgery; in addition, the groove on the inner wall of the blood vessel 1 will directly affect the direction of blood flow. The general principle of fluid dynamics shows that the flowing blood will tur...

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/06D03D1/00
Inventor 华峰林增华华卫国
Owner 无锡莱福纶生物材料有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com