Medical polylactic acid (PLA) suture line and manufacturing method

A polylactic acid and suture technology, applied in the field of medical materials, can solve the problems of limited use, lack of sterilization, anti-inflammation and hemostasis

Inactive Publication Date: 2016-01-20
钊桂英
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although the sutures commonly used in the medical field are more prominent in terms of absorbability, they are limited in use becau

Method used

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  • Medical polylactic acid (PLA) suture line and manufacturing method
  • Medical polylactic acid (PLA) suture line and manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Example 1 A medical polylactic acid (PLA) suture, prepared from the following main raw materials, all in parts by weight (35g / part): 9 parts of Lycoris chinensis; 10 parts of Andrographis paniculata; 7 parts of Forsythia japonicus; 5 parts of Folium Folium ; 6 parts of Fangfeng; 3 parts of peanut coat; 6 parts of gardenia; 8 parts of Niu Xixi; 4 parts of madder (charcoal); (PLA) 20 parts; chitin 15 parts, appropriate amount of cross-linking agent, appropriate amount of stabilizer, appropriate amount of antibacterial agent.

[0045] A kind of preparation method of medical polylactic acid (PLA) suture is:

[0046] (1) Gardenia is soaked in 0.3-0.5 times the amount of licorice honey water for 10-16 hours (preferably gardenia is soaked in 0.35-0.45 times the amount of licorice honey water for 12-14 hours), wherein the mass ratio of licorice to honey The ratio is 2:1, take it out, dry it over medium heat, grind it into fine powder together with dried blood, forsythia and m...

Embodiment 2

[0053] Example 2 A medical polylactic acid (PLA) suture, prepared from the following main raw materials, all in parts by weight (15g / part): 13 parts of wolfberry; 16 parts of Andrographis paniculata; 11 parts of forsythia; 9 parts of Daqingye ; 8 parts of Fangfeng; 7 parts of peanut coat; 10 parts of gardenia; (PLA) 34 parts; chitin 25 parts, appropriate amount of cross-linking agent, appropriate amount of stabilizer, appropriate amount of antibacterial agent.

[0054] A kind of preparation method of medical polylactic acid (PLA) suture is:

[0055] (1) Soak gardenia in 0.5 times the amount of licorice honey water for 16 hours, wherein the mass ratio of licorice to honey is 2:1, take it out, dry it over medium heat, and grind it together with dried blood, forsythia and madder charcoal into a Fine powder, mix evenly, pass through a 95-mesh sieve, and set aside;

[0056] (2) Put Fangfeng in a stir-frying container, heat and stir-fry over low heat until the surface of the med...

Embodiment 3

[0061] Example 3 A medical polylactic acid (PLA) suture, prepared from the following main raw materials, all in parts by weight (30g / part): 10 parts of wolfberry; 12 parts of Andrographis paniculata; 8 parts of forsythia; 6 parts of Daqingye ; 6.5 parts of Fangfeng; 4 parts of peanut coat; 7 parts of gardenia; 9.5 parts of Niu Xixi; 5.5 parts of madder (charcoal); (PLA) 24 parts; chitin 18 parts, appropriate amount of cross-linking agent, appropriate amount of stabilizer, appropriate amount of antibacterial agent.

[0062] A kind of preparation method of medical polylactic acid (PLA) suture is:

[0063] (1) Gardenia is soaked in 0.35 times the amount of licorice honey water for 12 hours, wherein the mass ratio of licorice to honey is 2:1, taken out, dried over medium heat, and crushed together with dried blood, forsythia and madder charcoal into a Fine powder, mix well, pass through 75 mesh sieve, set aside;

[0064] (2) Put Fangfeng in a stir-frying container, heat and st...

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Abstract

The invention discloses a medical polylactic acid (PLA) suture line. The medical polylactic acid (PLA) suture line is mainly prepared from, by weight, 9-13 parts of bidens tripartite, 10-16 parts of andrographis paniculata, 7-11 parts of phillyrin, 5-9 parts of folium isatidis, 6-8 parts of saposhnicovia divaricata, 3-7 parts of peanut coats, 6-10 parts of cape jasmine, 8-13 parts of patience dock roots, 4-9 parts of carbonized rubia cordifolia, 6-9 parts of humifuse euphorbia herb, 5-10 parts of panax notoginseng, 3-6 parts of resina draconis, 8-11 parts of agrimonla pilosa ledeb, 20-34 parts of PLA, 15-25 parts of chitin, an appropriate amount of crosslinking agents, an appropriate amount of stabilizer and an appropriate amount of antibacterial agents. The medical polylactic acid (PLA) suture line has the advantages that the suture line has the effects of resisting bacteria, eliminating inflammation, stopping blood and alleviating pain, can effectively restrain growth of pathogenic bacteria, prevent postoperation wound infection and accelerate wound healing, and is safe, effective and free of any toxic and side effects.

Description

technical field [0001] The invention relates to the field of medical materials, in particular to a medical polylactic acid (PLA) suture and a preparation method. Background technique [0002] Medical suture is a kind of thread material used for human surgical suturing. For thousands of years, suture materials of different materials have been used, and debated. From the perspective of material development, its development history has gone through: silk thread, catgut, chemical synthesis thread, and pure natural collagen suture; from its physical form, it can be divided into single fiber body and multi-fiber body; according to the raw material The sources are divided into two types: natural sutures (animal tendon sutures, sheep catgut, silk and cotton threads) and artificial sutures (nylon, polyethylene, polypropylene, PGA, stainless steel wire and metal tantalum wire); Look, divided into non-absorbable sutures and absorbable sutures. Closing the epidermis, especially the fa...

Claims

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Application Information

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IPC IPC(8): A61L17/12A61K36/889A61K36/896A61P29/00A61P31/04
Inventor 不公告发明人
Owner 钊桂英
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