China's Medshine Uses Solvay's Radel PPSU and AvaSpire PAEK in Locally-Produced Medical Sterilisation Case

28 October 2014

Medshine Medical Devices, a medical device manufacturer based in Qingdao, China states it has introduced one of the first locally-produced surgical sterilisation cases made of high-performance thermoplastics from Solvay Specialty Polymers.

The company claims the sterilisation case, made of Radel polyphenylsulfone (PPSU) and AvaSpire polyaryletherketone (PAEK) resins, can withstand repeated steam sterilisation cycles and autoclave temperatures up to 273°F (134°C) without significant loss of properties.

According to Medshine, its five-year product development effort resulted in the selection of Radel PPSU over metal and other thermoplastics because of its excellent steam sterilisability, toughness and strength, and multiple colour options.

Zhou Pishun, Medshine’s Chief Executive Officer explains for the injection moulded rigid container, Radel provided other key performance benefits including transparency and chemical resistance. Pishun noted that medical products, such as high-end cases and trays, are imported from the U.S. and Europe, and this new high-end product is one of the first to be produced by a local supplier using Solvay materials.

“For our application, the material has a long history in the market and gives us a high degree of confidence,” explained Pishun. “Radel PPSU has played a major role by delivering resiliency and exceptional sterilisation to meet our demanding requirements.”

According to Solvay, Lightweight Radel PPSU is a highly tough, transparent plastic that offers excellent chemical resistance and can withstand repeated disinfection and autoclaving – over 1,000 cycles – while maintaining its toughness and impact resistance.

The company states the case’s latch component is injection moulded of AvaSpire PAEK, a versatile family of proprietary formulations tailored to provide new and unique combinations of performance and value. AV-600 Series products deliver excellent chemical resistance, good impact strength, and can withstand more than 1,000 cycles of steam sterilisation.

There are four types of sterilisation cases available in a wide range of sizes, ranging up to 600-mm (23.6-in) by 300-mm (11.8-in) by 260-mm (10.2-in). Medshine commercialised the Radel sterilisation case via a distributor agreement in July and plans global availability in the near future. The device maker is also considering the use of Solvay’s Udel polysulfone (PSU) resin for a laparoscopic case and tray.

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