Silk woven medical suture with color discrimination and anti-bacterial functions and preparing method thereof

A technology for color identification and suture, applied in the field of medical textiles, can solve the problems of high requirements on the type of polymer absorbable materials, complex processing technology, and potential safety hazards, and achieves soft and delicate hand feel, short process flow, and easy soaping. and washing effect

Active Publication Date: 2016-04-20
HUBEI SAILUO BIOLOGICAL MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The Chinese patent with the publication number CN103816564A and the title of invention "a long-acting slow-release antibacterial silk braided medical suture and its preparation method" discloses that quinolone antibacterial drugs are uniformly dispersed in polymer absorbable materials, and then coated with The core yarn and the braided yarn are treated by the layer method, and then woven into an antibacterial medical suture with a long-term sustained-release function. Although the quinolone antibacterial drugs selected in this scheme have good antibacterial effects, they need to be loaded at high temperature first. Among molecular absorbable materials, the preparation process is complicated, and the requirements for the types of polymer absorbable materials are relatively high
The Chinese patent with the publication number CN104857556A and the title of invention "a chemically grafted long-acting slow-release antibacterial silk suture and its preparation method" discloses that the silk suture is activated in a buffer containing EDC and NHS, and then Then add antibacterial nanoparticles for grafting to prepare antibacterial silk sutures with long-term slow-release function. The preparation process of this method is relatively complicated, and the chemical substances used are potentially harmful to the human body.
[0005] At present, the dyes used in silk sutures with color recognition function on the market are synthetic dyes, which have potential safety hazards
The antibacterial component of antibacterial silk suture is a synthetic antibacterial agent, which has poor tissue compatibility, and the processing technology is complicated and the cost is high

Method used

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  • Silk woven medical suture with color discrimination and anti-bacterial functions and preparing method thereof
  • Silk woven medical suture with color discrimination and anti-bacterial functions and preparing method thereof

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preparation example Construction

[0025] A method for preparing a silk braided medical suture with both color recognition and antibacterial functions, comprising the following steps:

[0026] a Weigh natural dyes with 5-10% mass of silk threads, add the natural dyes to distilled water 30-50 times the mass of silk threads and dissolve them for 5-10 minutes to obtain a dyeing solution; then soak the silk threads into the prepared dyeing solution , raising the temperature of the dyeing solution to 40-50° C., incubating and dyeing for 10-20 minutes, then raising the temperature of the dyeing solution to 70-80° C., and incubating and dyeing for 70-90 minutes to obtain dyed pretreated silk threads. The natural dye can be gallnut or Keshu or oak leaf, the silk thread is a single thread, and the linear density specification of each thread can be 13 / 15D or 17 / 19D or 20 / 22D or One of 27 / 29D or 30 / 32D or 40 / 44D.

[0027] Existing silk dyeing process is to carry out degumming pretreatment to silk earlier, adopts syntheti...

Embodiment 1

[0039] a Weigh 1 kg of silk thread with a linear density specification of 13 / 15D, then weigh 50 g of Galla gall natural dye, add the weighed natural dye to 30 kg of distilled water and dissolve for 5 minutes to obtain a dyeing solution. Then soak the silk thread in the prepared dyeing solution, raise the temperature of the dyeing solution to 40° C., keep it warm for 20 minutes, then raise the temperature of the dyeing solution to 70° C., keep it warm for 90 minutes, and obtain the dyed pretreated silk thread.

[0040] b prepare 30kg concentration of acetic acid aqueous solution of 0.5g / L, then add 150g FeSO 4 Add to acetic acid aqueous solution and dissolve for 5 minutes to obtain a mordant bath. Then soak the dyed pretreated silk thread in the prepared mordant dyeing bath, raise the temperature of the mordant dyeing bath to 40°C, keep it warm for 50 minutes, and then carry out conventional soaping and water washing on the mordant treated silk thread, and dry it to obtain dyed...

Embodiment 2

[0044] a Weigh 1 kg of silk thread with a linear density specification of 17 / 19D, then weigh 100 g of Keshu natural dye, add the weighed natural dye to 50 kg of distilled water and dissolve for 10 minutes to obtain a dyeing solution. Then soak the silk threads in the prepared dyeing solution, raise the temperature of the dyeing solution to 50° C., keep it warm for 10 minutes, then raise the temperature of the dyeing solution to 80° C., keep it warm for 70 minutes, and obtain the dyed pretreated silk thread.

[0045] b prepare 50kg concentration of 1g / L acetic acid aqueous solution, then add 500g FeSO 4 Add to acetic acid aqueous solution and dissolve for 10 minutes to obtain a mordant bath. Then soak the dyed pretreated silk thread in the prepared mordant dyeing bath, raise the temperature of the mordant dyeing bath to 50°C, keep it warm for 40 minutes, and then carry out conventional soaping and water washing on the mordant treated silk thread, and then dry it to obtain dyed ...

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Abstract

The invention discloses a silk woven medical suture with color discrimination and anti-bacterial functions and a preparing method thereof. One-ply silk threads are used as a raw material and are dyed through a natural dyestuff post-mordant method; waxing and rewinding are simultaneously conducted on the dyed silk threads with food-grade beeswax, and center threads and shell threads are arranged by the ratio of center threads: shell threads=0.083-0.25 and woven on an automatic weaving machine to obtain silk woven threads; high-temperature fast heat setting is carried out on the silk woven threads, Co60 irradiation sterilization is carried out, and the silk woven medical suture with the diameter range of 0.04-0.5 mm is obtained, wherein the tensile strength is 1.5-50 N, the appearance color is black, the silk woven medical suture does not fade when washed with water, the rate of inhibiting staphylococcus aureus and escherichia coli is 99% or more, and the bacterium inhibiting duration time is 7 days or longer. The physical properties and antibacterial performance of the silk woven medical suture meets related standards, and the silk woven medical suture is easy to recognize in the operation process and has excellent antibacterial performance.

Description

technical field [0001] The invention belongs to the technical field of medical textiles, and relates to a multifunctional medical suture and a preparation method thereof, in particular to a silk braided medical suture with both color recognition and antibacterial functions and a preparation method thereof. Background technique [0002] Medical suture refers to the special thread used for ligation hemostasis, suture hemostasis and tissue suture in surgical operation, and its quality level plays a vital role in the success of the operation. Currently, there are many types of surgical sutures on the market, including polyglycolide sutures, glycolide and lactide copolymer sutures, polydioxanone sutures, polylactic acid sutures and other absorbable sutures , and non-absorbable sutures such as polypropylene sutures, polyamide sutures, polyester sutures, and silk sutures. Among them, silk sutures, which have been used for thousands of years, still occupy an important position in t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L17/14A61L17/08A61L17/00D02G3/36
CPCA61L17/005A61L17/08A61L17/14A61L2300/404A61L2300/442D02G3/36
Inventor 张传杰马兆成颜超
Owner HUBEI SAILUO BIOLOGICAL MATERIAL CO LTD
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