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Alpharetta, Georgia – Solvay Specialty Polymers’ Udel polysulfone (PSU) and Radel polyphenylsulfone (PPSU) medical-grade polymers has helped Medical Illumination International to design an innovative, more compact version of its flagship MI-1000 surgical lighting unit. Solvay’s high-performance polymers form three injection-molded components in Medical Illumination’s new MI-750 LED lighting system: a handle, a handle post, and the lamp’s yoke attachment. In addition to supporting stable placement of the lamp during surgery, Udel and Radel polymers enable the molded components to deliver durable performance after frequent chemical disinfection and steam sterilization.
“Medical Illumination owes its success in this market to the meticulous design and reliable performance of its surgical lighting systems, which dependably meet or exceed the demanding requirements of the operating theater,” says Steve Rowey, chief operating officer for Medical Illumination. “Solvay’s materials consistently exhibit a high level of quality and performance – from the molding process to the end-use application – which were both critical in enabling us to meet the exacting criteria for our innovative new lamp design.”
Medical Illumination designed its MI-750 lamp to provide bright, cool, and energy-efficient LED illumination to minimize shadows and improve tissue rendition for exams or minor procedures. Medical Illumination selected California-based Mold Precision Engineering to injection mold the three components fabricated with Solvay’s high-performance polymers.
“Solvay’s expertise and advanced polymer technology impart a high level of confidence to injection molders,” states Peter Minaskanian, president of Mold Precision Engineering. “Their materials process easily, offer value-added options for overmolding and deliver dependable performance from batch to batch. That helps us to reliably produce high quality finished parts and meet our customers’ criteria for success.”
Medical Illumination uses Solvay’s Udel PSU to form the lamp’s handle and the yoke attachment that holds a bearing in place to enable the cantilevered light to pivot. Udel PSU withstands repeated autoclave cycles up to 121°C (250°F) without a significant loss of properties. It also complies with the American National Standards Institute autoclave standard AAMI-SSSA-1988 for steam sterilization in healthcare facilities.
About Solvay Specialty Polymers Solvay Specialty Polymers manufactures over 1500 products across 35 brands of high-performance polymers – fluoropolymers, fluoroelastomers, fluorinated fluids, semi-aromatic polyamides, sulfone polymers, aromatic ultra-high performance polymers, high-barrier polymers and cross-linked high-performance compounds – for use in aerospace, alternative energy, automotive, healthcare, membranes, oil and gas, packaging, plumbing, semiconductors, wire & cable, and other industries. |
About Mold Precision Engineering Inc. |
About Medical Illumination International Medical Illumination International, established in 1978, is one of the world's premier manufacturers of medical lighting equipment, operating room tables, equipment management systems, and advanced, high-definition video integration, which are all sold through medical equipment and supply distributors worldwide. The company’s product range covers the complete spectrum of lighting for surgery, emergency procedures, examination, and specialty uses, along with video monitor and camera models, surgery tables, and equipment pendants. |
Udel PSU’s high stiffness and dimensional stability were important performance criteria for the yoke attachment. These properties ensure that the part applies a precise amount of pressure on the bearing it encloses, allowing the lamp to pivot freely, yet remain stable when released. In addition, Udel PSU provides strong chemical resistance, as the yoke must be cleaned frequently with stringent disinfectants that can degrade lower performing polymers.
For the 102mm (4") handle post of the MI-750 lamp, Medical Illumination chose Solvay’s Radel PPSU for its ability to improve the impact strength and stiffness of the part while also offering better resistance to chemical sterilants vs. polycarbonate, which had not performed adequately in earlier lamp designs.
Further, Udel PSU and Radel PPSU both supported Medical Illumination’s need to color match the injection-molded parts to the powder-coated Polar White palette of its new lighting system.
“Solvay’s broad portfolio of advanced, medical-grade polymers offer a versatile toolbox of solutions for forward-looking designers like Medical Illumination,” says Dane Waund, global healthcare market manager for Solvay Specialty Polymers. “Our advanced materials reliably meet demanding performance criteria to give our global healthcare customers the confidence they need to innovate more freely.”
Source: Solvay Specialty Polymers
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