A kind of preparation method of graphene-coated surgical blade

Abstract

The invention discloses a preparation process of a graphene-coated surgical blade, which comprises the following preparation process: glass bottle pretreatment, adding graphite powder to the solution in step 1, shaking it evenly, and processing it through an ultrasonic processor equipped with a standard probe, Then collect the supernatant graphene dispersion CH-GRP; the stainless steel material used to manufacture the surgical blade is ultrasonically treated with acetone, 70% ethanol and double distilled water respectively, and the stainless steel obtained from the above treatment is subjected to plasma under oxygen gas treatment for surface functionalization; the treated stainless steel was immersed in CH, CH‑GRP and CH‑GRP‑Ti oxygen NPs coating dispersions, respectively; all coated samples were dried in an oven. The metal surgical blade prepared by the method is added with a graphene coating, the blade has high sharpness, can effectively reduce the infection rate, and can alleviate the pain of the patient; the graphene coating has an anti-corrosion function, and provides a guarantee for the preservation of the surgical blade. Convenience, high social and practical value.

Description

technical field [0001] The invention relates to a preparation process method of a graphene-coated surgical blade, which belongs to the field of medical instruments. Background technique [0002] When a doctor uses a surgical blade made of metal to operate on a patient, the surgical blade itself does not have bactericidal effect, and there is a risk of metal ion diffusion and contamination, which is likely to cause wound infection, make the wound recovery poor, and bring unnecessary pain to the patient. Painful; if the sharpness of the surgical blade is not large enough, it will be difficult to cut hard tissues during the operation, and it will easily cause uneven wounds; metal surgical blades are easily corroded, and rust spots are likely to occur if they are not stored properly. . [0003] The coatings selected for the existing coated surgical blades include silver coating, nano-ta-C coating (patent authorization announcement number: CN203234802U), diamond composite coatin...

AI Technical Summary

Problems solved by technology

[0002] When a doctor uses a surgical blade made of metal to operate on a patient, the surgical blade itself does not have bactericidal effect, and there is a risk of metal ion diffusion and contamination, which is likely to cause wound infection, make the wound recovery poor, and bring unnecessary pain to the patient. Painful; if the sharpness of the surgical blade is not large enough, it will be difficult to cut hard tissues during the operation, and it will easily cause uneven wounds; metal surgical blades are easily corroded, and rust spots are likely to occur if they are not stored properly.

[0003] The coatings selected for existing coated surgical blades include silver coating, nano-ta-C coating (patent authorization announcement number: CN203234802U), diamond composite coating (patent authorization announcement number: CN111733383A), etc. The silver coating has good bactericidal properties , but it is harmful to the human body and has been banned in European and American countries; the nano-ta-C coating improves the sharpness of the scalpel, reduces the amount of bleeding during the operation, and improves the wear resistance of the knife, but it is not bactericidal; the diamond composite coating is strong and wear-resistant, However, no literature has reported its bactericidal

After searching, it was found that there is also a pure graphene scalpel (patent authorization announcement number: CN106667550A), but it has not been widely used because of its high cost, and the application of this kind of scalpel needs to be verified.

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