Preparation process method of surgical knife blade with graphene coating

Abstract

The invention discloses a preparation process method of a surgical knife blade with a graphene coating. The preparation process method comprises the following preparation processes of performing glassbottle pretreatment, adding graphite powder to a solution obtained in step 1, uniformly shaking the solution, and carrying out treatment through an ultrasonic processor provided with a standard probeto collect a supernatant graphene dispersion CH-GRP; respectively carrying out ultrasonic treatment on a stainless steel material for manufacturing the surgical knife blade by using acetone, 70% ethanol and double distilled water, carrying out plasma treatment on the stainless steel obtained by the treatment under oxygen gas, and carrying out surface functionalization treatment; respectively immersing the treated stainless steel into CH, CH-GRP and CH-GRP-Ti oxygen NPs coating dispersions; and drying all coating samples in a drying oven. The graphene coating is added to the metal surgical knife blade prepared through the method, the sharpness of the blade is high, the infection rate can be effectively reduced, and the pain of a patient can be relieved; and the graphene coating has an anti-corrosion function, provides convenience for storage of the surgical knife blade, and has extremely 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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