MEDICAL DEVICE DISINFECTION—HOW TO PREVENT CRACKING AND CRAZING Understanding polymer performance is key to minimizing disinfectant-related failures DISINFECTANT-RELATED DAMAGE ON POLYMER HOUSINGS Strong chemicals used to reduce hospital- acquired infections can damage equipment and result in material failures, such as: • Stress cracking • Crazing • Discoloration CHEMICAL RESISTANCE REQUIREMENTS VARY BY ENVIRONMENT • Patient/exam rooms • Operating and radiology rooms • Reception areas • Home (patient equipment & devices) Healthcare devices must perform flawlessly in a myriad of challenging environments and engineers must be certain their devices can withstand increasingly potent disinfectants, which have begun to outstrip the performance of traditional polymers. Additionally, the wide variability of environments that medical devices might see, which can range from home to hospital, mean devices must be able to withstand varying disinfectant strengths, exposure levels and frequencies. Whether you are designing for a medical device housing or a surgical device in the operating room, we offer solutions to meet a wide variety of performance specifications and application needs.

It is the responsibility of the medical device manufacturer and the person placing the medical device on the market to ensure compliance of the medical device with all applicable laws and regulations, including the suitability of all raw materials and components used for its manufacture.

It is the responsibility of the medical device manufacturer and the person placing the medical device on the market to ensure compliance of the medical device with all applicable laws and regulations, including the suitability of all raw materials and components used for its manufacture.

It is the responsibility of the medical device manufacturer and the person placing the medical device on the market to ensure compliance of the medical device with all applicable laws and regulations, including the suitability of all raw materials and components used for its manufacture.

gate location, fill/pack/warp/cool) & material solution • Evaluates component design viability with preferred Avient material solution • Fiber analysis determines fiber orientation and length • Predicts part quality and manufacturability (shrink, warp, weld line location) FILLING PART QUALITYFIBER ORIENTATION Finite Element Analysis (FEA) • Virtually simulates how an application will perform in real-world conditions with a high level of precision • Able to represent a variety of problems, test methods, models and outputs to evaluate the design, process and material combination for validation or optimization • Dynamic - Acceleration - Impact - Break/no break - Transmitted force - Energy absorption • Thermal Mechanical - Temperature Computational Fluid Dynamics (CFD) - Heat path - Dominant heat transfer - Temperature mapping - Coupling with mechanical simulations FEA Simulation Capabilities • Static - Displacement/rotations - Stress and strains - Contact pressure - Reaction forces/moments - Factors of safety • Vibration - Eigen frequencies - Harmonic response ○ Harmonic displacement, acceleration and stress Software Used • Autodesk Moldflow • Digimat • Simulia/Abaqus • MSC Cradle • CAD/CAE - MSC Apex - SolidWorks Failure Mode Effect Analysis (FMEA) Support By leveraging mold filling simulation, multiphysics simulation, and the understanding of the link between design, process and material, we can help inform your decision-making process for product development.

Pipe, Fittings And Fluid Handling Medical Tubing Medical Packaging

Barrel Temperatures °F (°C) PP Mineral-Filled PP Glass-Filled PP HDPE LDPE Rear Zone 360–390(182–200) 400–420 (204–216) 415–435 (213–224) 400–420 (204–216) 370–390 (188–199) Center Zone 370–400(188–204) 410–430 (210–221) 425–445 (218–229) 410–430 (210–221) 380–400 (193–204) Front Zone 390–410(200–210) 420–440 (216–227) 435–455 (224–235) 420–440 (216–227) 390–410 (199–210) Nozzle 400–425(204–219) 415–435 (213–224) 430–450 (221–232) 430–450 (221–232) 400–425 (204–219) Melt Temperature 400–425(204–219) 415–435 (213–224) 430–450 (221–232) 430–450 (221–232) 400 - 425 (204–219) Mold Temperature °F (°C) 60–120 (16–49) Pack & Hold Pressure 50–75% of injection pressure Injection Velocity (in/s) 1.0–3.0 Back Pressure (psi) 50–100 Screw Speed (rpm) 30–100 Drying Parameters Hours @ °F (°C) Not typically required.

Our diagnostic experts can help with analysis and testing related to early stage development for medical devices

Special formulations for medical applications

A leading medical contract manufacturer faced an unacceptably high number of rejected parts for a pulmonary device housing.