Absorbable suture line and method for preparing the same
A technology of suture and collagen, which is applied in medical science, surgery, surgical instruments, etc., can solve the problems of high cost and slow absorption, and achieve the effect of low cost, stable and reliable absorption, and good biocompatibility
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[0025] Example 1:
[0026] An absorbable suture thread, which is mainly made of the following raw materials according to the mass ratio: 24 parts of collagen, 23 parts of silk protein, 12 parts of silk fibroin, 13 parts of sericin, 12 parts of glycolic acid, 11 parts of lactic acid, and poly 2 parts of glycolide, 6 parts of polylactide, 4 parts of polyglycolide lactide, 1 part of sodium carbonate, 40 parts of deionized water.
[0027] A method for preparing absorbable sutures includes the following steps:
[0028] (1) Dissolve sodium carbonate in deionized water to prepare the base solution, the mass concentration of sodium carbonate is 3%;
[0029] (2) Dissolve collagen, silk protein, silk fibroin and sericin in the base solution obtained in step (1), and stir until completely dissolved;
[0030] (3) Put glycolic acid, lactic acid, polyglycolide, polylactide, and polyglycolide lactide in a reaction kettle, and make a melt under the conditions of a temperature of 230°C and a pressure o...
Example Embodiment
[0033] Example 2:
[0034] An absorbable suture thread, which is mainly made of the following raw materials according to the mass ratio: 48 parts of collagen, 46 parts of silk protein, 21 parts of silk fibroin, 18 parts of sericin, 16 parts of glycolic acid, 22 parts of lactic acid, and poly 11 parts of glycolide, 17 parts of polylactide, 12 parts of polyglycolide lactide, 5 parts of sodium carbonate, 60 parts of deionized water.
[0035] A method for preparing absorbable sutures includes the following steps:
[0036] (1) Dissolve sodium carbonate in deionized water to prepare the base solution, the mass concentration of sodium carbonate is 6%;
[0037] (2) Dissolve collagen, silk protein, silk fibroin and sericin in the base solution obtained in step (1), and stir until completely dissolved;
[0038] (3) Put glycolic acid, lactic acid, polyglycolide, polylactide and polyglycolide lactide in a reaction kettle, and make a melt under the conditions of a temperature of 325℃ and a pressure...
Example Embodiment
[0041] Example 3:
[0042] An absorbable suture thread, which is mainly made of the following raw materials according to the mass ratio: 55 parts of collagen, 56 parts of silk protein, 27 parts of silk fibroin, 23 parts of sericin, 30 parts of glycolic acid, 28 parts of lactic acid, and poly 14 parts of glycolide, 20 parts of polylactide, 16 parts of polyglycolide lactide, 7 parts of sodium carbonate, 65 parts of deionized water.
[0043] A method for preparing absorbable sutures includes the following steps:
[0044] (1) Dissolve sodium carbonate in deionized water to prepare the base solution, the mass concentration of sodium carbonate is 8%;
[0045] (2) Dissolve collagen, silk protein, silk fibroin and sericin in the base solution obtained in step (1), and stir until completely dissolved;
[0046] (3) Put glycolic acid, lactic acid, polyglycolide, polylactide, and polyglycolide lactide in a reactor, and make a melt under the conditions of a temperature of 360°C and a pressure of 2....
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