Plastic suppliers have been increasingly responding to the needs of medical device manufacturers’ requirements of lightweight, aesthetically pleasing, but strong materials for their devices and components. They are responding to the movement toward smaller products and handheld devices. As well as, addressing the problem of breaking down from the chemicals and cleaners used to disinfect them.
Polycarbonate Various Grades and Fillers
Polycarbonate is impact resistant, clear, high heat resistance resin. This resin has dimensional stability, is resistant to UV light, and has flame retardant properties. Gamma and EtO sterilization can be done. Ultra sonic welding can be used with this material. Typical applications include reservoirs, artery cannulas, high-pressure syringes, stopcocks, centrifugal force separators, lures, blood filter housings and dialyzer housings such as glucose meters, pumps, insulin pens, surgical device handles and housings.
Glass filled polycarbonates are increasingly being used in the design and manufacturing of medical devices and equipment housings. These glass filled blends provide structural support, durability and compatibility with several devices because they have the same structural support of traditional materials like metal. However, the parts can be made smaller and thinner reducing the weight of the part and providing ease of use. These resins are injection molded into handheld surgical instruments to diabetic monitors to insulin pens where stiffness, design flexibility and aesthetically pleasing appearance are required. These resins are available with different amounts of filler and used in a variety of applications. The intended function will determine the amount of glass filler used and outside factors like pressure or force that will be exerted on the product, the environment in which the product will be used and the desired life of the part or device.
Makrolon Polycarbonate resin is lightweight and has glass-like transparency. Medical grades can be sterilized using steam, gamma or ethylene oxide methods. This material has an unusual combination of strength, rigidity and toughness that helps prevent potentially life-threatening material failures. It has excellent heat resistance with a glass transition temperature. It provides glasslike clarity, a critical characteristic for clinical and diagnostic settings were visibility of tissues, blood and other fluids are required.Read More