Tenor Apes: New TPE increases the flexibility and durability of catheters in peristaltic pump applications

HC Plastics News:

A range of new medical grade thermoplastic elastomers (TPEs) for peristaltic pump tubing provide flexibility over a wide temperature range and are able to withstand the stresses generated by pump motion over time. Unlike silicone, these new elastomers can be welded and heat sealed.

Teknor Apex's new Medalist® range of compounds includes transparent, translucent and opaque grades for the biotechnology and pharmaceutical industries, medical infusion systems and dialysis machines (see table). Compared to other TPEs, Medalist TPE has less spallity (spreading refers to particles falling off the inner surface of the catheter due to repeated compression and release during pump operation). The resilience of these compounds allows the catheter to be synchronized with the rapid movement of the pump, while its durability allows it to remain shape and intact over time.

Medalist compounds are low in extractables, compatible with a wide range of chemicals, and can be sterilized by electron beam, gamma radiation or ethylene oxide. Special specifications are available for biopharmaceutical applications with extremely low temperature requirements.

Rossvan Royen, senior marketing manager for regulated products, said: "The new Medalist compounds for peristaltic pump applications are extremely durable and provide reliable performance over a wide range of operating temperatures. They are based on cooperation with equipment OEMs and processors. Mature technology with excellent extrusion speed."

TeknorApex produces Medalist compounds through its ISO-13485 certified facilities in the US and Singapore. These new materials are manufactured from ingredients listed by the FDA (US Food and Drug Administration) and are certified to ISO 10993-5 biocompatibility standards and meet REACHSVHC requirements. They are free of DEHP (dioctyl phthalate) and other phthalates, BPA (bisphenol A) and latex. The standard grade does not contain ADM (animal derived material).

Introduction to Teknor Apex

Teknor Apex is a private company founded in 1924 and is now one of the world's leading manufacturers of custom plastic compounds. Teknor Apex manufactures flexible and rigid vinyl products, thermoplastic elastomers, nylons, masterbatches, specialty chemicals and hoses. Headquartered in Pawtucket, Rhode Island, USA, the company has 13 manufacturing facilities located throughout the United States, Belgium, Germany, China and Singapore. For more information, please visit

Teknor Apex's Thermoplastic Elastomers Division is a TPE compound supplier that offers the broadest portfolio of TPE compounds. The division has eight TPE compound plants in the US, Europe and Asia, including: Elexar® (electrical and electronic applications), Medalist® (medical equipment), Monprene® (consumer and industrial products) and Sarlink® (traffic) ).

Editor in charge: Yao Chunlin

Liquid Reservoir

4 Channel Reagent Reservoirs,8 Channel Reagent Reservoirs,12 Channel Reagent Reservoirs,96 Well Reservoir,384 Well Reservoir, from Yongyue Medical, is made of strong clear polypropylene (PP). Low profile designation which is suitable for small volume robotic tips used in high flux instruments. In the automatic pipetting process, the reservoir can perfectly overcome the surface tension of the liquid and minimize residual liquid

Our Reservoir Plates are perfect for storing volumes of samples to be pipetted into other microplates for further applications.
These plates are manufactured in cleanroom facilities which are certified free of RNase, DNase, human genomic DNA and endotoxins. We use only the highest medical grade virgin polypropylene with high resistance against chemicals such as DMSO, phenol, and chloroform. Pyramid channel bases are best for small volume recovery. The standard SBS footprint ensures its compatibility with automation.
Our sturdy and reusable reagent reservoirs can stand-up to autoclaving, exposure to temperature extremes, and chemicals. Made from polypropylene these reservoirs offer a stable base that makes them suitable for manual procedures as-well-as automation.
These fully automation compatible reservoirs feature an SBS footprint and can be used in plate handlers or stackers. To minimize space on platforms (when a stacker is not in use) or under hoods, these reservoirs can be filled and stacked.