CN102389587A - Manufacturing method of novel medical carbon fiber suture - Google Patents

Abstract

The invention provides a manufacturing method of a novel medical carbon fiber suture, and relates to the technical field of medical sutures. The method is characterized in that: carbon fiber with extremely high tensile strength is pre-immersed with epoxy resin to form a composite reinforced material, namely one-way continuous fiber; a silicon carbide layer is gasified outside the carbon fiber, and polypropylene is adhered outside the silicon carbide layer along the tension direction to form a polypropylene layer; and a polyglycolic acid material is used for coating to form the novel medical carbon fiber suture. The whole manufacturing process is green and pollution-free. The novel medical carbon fiber suture has the characteristics of high tensile strength, light weight, good flexibility, good biocompatibility, convenience in use and convenience in suturing.

Description

The manufacturing approach of new medical carbon fiber suture

Technical fieldThe present invention relates to the medical suture technical field, specifically relate to a kind of manufacturing approach of new medical carbon fiber suture.

Background technologyThe present invention relates to the medical suture technical field.Suture is one of material the most basic in the operation, and it is to sew up all kinds of tissues and internal organs that suture is applied in the operation, and until operation wound heal, but both blood vessel is sewed up in ligation, also can be used to hemostasis.Suture is a kind of sterilization long filament, can be monofilament suture, also can be the multifibres suture; Usually after the operation, the suture wound is infected easily, and suture requires aseptic, antibiotic, and requires suture to have certain mechanical performance, pliability and firmness.Most important requirement is that the bio-compatibility of suture will be got well, and human body is not had toxic and side effects.Existing suture can not satisfy many-sided high performance requirements, is of limited application.Improve the performance of sutures, for accelerating wound healing, reduce post-operative complication, it is significant to improve the operation quality.

Summary of the inventionIn view of the defective that prior art exists, the objective of the invention is to provide a kind of tensile strength high, light weight, pliability is good, and bio-compatibility is good, and is easy to use, the manufacturing approach of the new medical carbon fiber suture of being convenient to sew up.

For realizing above-mentioned purpose, the technical solution that the present invention adopted is that the carbon fiber that tensile strength is high becomes composite reinforcing material with the epoxy resin preimpregnation, is unidirectional continuous fiber; The outer gas phase sedimentation method that adopts of carbon fiber through heat, reacts chlorosilane and high-purity hydrogen; Chlorosilane is cracked into hydrogen chloride and carborundum; Carborundum is deposited on carbon fiber surface and forms silicon carbide layer, and the silicon carbide layer skin along being drawn direction to paste polypropylene, forms polypropylene layer again; Reuse polyglycolic acid material carries out peplos, processes a kind of novel composite construction suture.Green non-pollution in whole manufacturing process.The present invention has strengthened the stressed of original suture, has increased the stretch capability of structure, has improved the intensity of structure, rigidity, crack resistance, extensibility.

Carbon fibre material is the high-strength carbon fiber unidirectional array, with the trace resin impregnated after as renovation reinforced reinforcement material, improved the tensile strength of original carbon fiber, have in light weight, high resiliency, high strength, the characteristics of high-durability.Behind the gasification silicon carbide layer, need natural curing to reach initial cure in 3～5 hours, setting up period is avoided external interference and collision.

Because the present invention has the tensile strength height, light weight, pliability is good, and bio-compatibility is good, and is easy to use, and the characteristics of being convenient to sew up are a kind of new techniques with promotional value.

Description of drawings

Fig. 1 is a carbon fiber structural sketch map of the present invention;

Fig. 2 cuts open a layer sketch map for structure of the present invention.

Reference numeral shown in Fig. 1～Fig. 2 is following: 1, carbon fiber, 2, epoxy resin, 3, carborundum, 4, polypropylene, 5, polyglycolic acid.

The specific embodiment

The technical solution that the present invention adopted is with carbon fiber 1 usefulness epoxy resin 2 preimpregnation becoming composite reinforcing material, is unidirectional continuous fiber; The carbon fiber 1 outer gas phase sedimentation method that adopts through heat, reacts chlorosilane and high-purity hydrogen; Chlorosilane is cracked into hydrogen chloride andcarborundum 3;Carborundum 3 is deposited on carbon fiber 1 surface and forms 3 layers of carborundums, and 3 layers of skin of carborundum along being drawn direction to pastepolypropylene 4, form 4 layers of polypropylene again; Reusepolyglycolic acid 5 materials carry out peplos, process a kind of novel composite construction suture.

Behind the gasification silicon carbide layer, need natural curing to reach initial cure in 3～5 hours, setting up period is avoided external interference and collision.

Claims (1)

1. the manufacturing approach of new medical carbon fiber suture is characterized in that carbon fiber is become composite reinforcing material with the epoxy resin preimpregnation, is unidirectional continuous fiber; The outer gas phase sedimentation method that adopts of carbon fiber through heat, reacts chlorosilane and high-purity hydrogen; Chlorosilane is cracked into hydrogen chloride and carborundum, and carborundum is deposited on carbon fiber surface and forms silicon carbide layer, needs spontaneous curing 3～5 hours behind the gasification carborundum; The silicon carbide layer skin is again along being drawn direction to paste polypropylene; Form polypropylene layer, reuse polyglycolic acid material carries out peplos, processes a kind of novel composite construction suture.

Images