What material is used for medical parts

u200bAccording to the working characteristics of medical parts, it is required to be resistant to a certain temperature during disinfection (usually high-temperature steam disinfection), not to rust, high strength, hardness (scalpel), and not easy to deform. Generally, stainless steel is selected, while stainless steel The materials with the above characteristics are martensitic stainless steel, such as 3Cr13 and 4Cr13 martensitic stainless steel and 9Cr18 stainless spring steel, etc., and martensitic stainless steel is the cheapest stainless steel, which can meet the requirements of medical equipment. u200bThe heat treatment process is basically quenching + low temperature tempering. 3Cr13 steel quenching temperature 1000~1050°, oil quenching, tempering temperature 150~350°4Cr13 steel quenching temperature 1050~1100°, oil quenching, tempering temperature 150~350°Choose the higher one when tempering. The temperature, such as 300°, is for high temperature sterilization (high temperature sterilization water vapor can reach 300°). 9Cr18 steel quenching temperature is 1000~1050, oil quenching, tempering temperature is 200~300. Of course, all kinds of surgical medical treatment are pointed out above. Materials such as scalpels (scalpel handles and blades, skin knives, wart peeling knives, willows Leaf knife, spatula, razor, dander scraper, pick knife, front knife, pedicure knife, manicure knife, scalpel), surgical scissors (ordinary surgical scissors, tissue scissors, integrated tissue scissors, suture removal scissors, plaster Scissors, dissecting scissors, gauze bandage scissors, educational surgical scissors), various forceps (ordinary hemostatic forceps, small blood vessel hemostatic forceps, mosquito hemostatic forceps, tissue forceps, cemented carbide insert needle holders, ordinary needle holders, Wound crack removal forceps, skin pressure forceps, bullet forceps, gauze peeling forceps, sponge forceps, scarf forceps, skin tube forceps, instrument forceps), forceps for basic surgery (small vessel forceps, non-invasive forceps, tissue forceps, plastic forceps) , Needle-holding forceps, health forceps (simple forceps), plucking forceps, towel forceps, dressing forceps, dissecting forceps, hemostatic clip), basic surgical needles, hooks (aneurysm needles, probes, hair pushing needles, hair transplanting needles) , Needle picking, teaching straight-pointed needle, vein retractor, wound hook, flat retractor, double-ended retractor, skin retractor, anatomical hook), stethoscope, etc., excluding materials for medical equipment, such as X-ray machines, ultrasound, CT , Photographing equipment, laboratory equipment, etc. The materials of these overall equipments are based on the different technical requirements of the parts of the equipment, and there are a wide range of choices and a wide range of types.u200b