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How Diversified Plastics and Carbon printers are enabling better medical supply transport

September 16, 2020 By Chris Newmarker

IQ-ler Thaddeus Medical Systems Diversified Plastics

The IQ-ler is meant to reliably transport temperature-sensitive medical supplies. [Image courtesy of Thaddeus Medical Systems, per Diversified Plastics]

Diversified Plastics (Brooklyn Park, Minn.) turned to Carbon printers and Digitial Light Synthesis technology to help startup Thaddeus Medical Systems create what it touts as more reliable active, smart cold-chain packaging.

Thaddeus — a five-year-old company in the Mayo Clinic’s home city of Rochester, Minn. — found that conventional 3D-printing or manufacturing methods were unable to create the complex, design-patented gyroid lattice structures needed for its IQ-ler. The IQ-ler is meant to reliably transport temperature-sensitive medical supplies and specimens such as expensive biological therapies, vaccines, blood and tissue samples.

The gyroid lattice structures inside the IQ-ler minimize vibration and shock and mazimize airflow in the payload, battery and sensitive electronic compartments.

“To find the right solution to manufacture these components, we tried parts made from several 3D printers, some very well-known brands. The prototypes from these 3D printers didn’t meet specifications and didn’t have a smooth surface finish,” said Dr. Steve Scully, founder of Thaddeus Medical Systems.

“The material for the gyroid lattice needed to be compliant, flexible and resilient to provide exceptional vibration damping with smooth-surface finish characteristics,” Scully said. “The only prototype parts that matched our specifications were manufactured using the Carbon DLS process, the core of DPI’s Acceleration Station.”

Carbon (Redwood City, Calif.) boasts a fast sterolithography printing technology with little impact on the growing part — coupled with a focus on using production-worthy materials and capturing data for better performance.

gyroid lattice structures IQ-ler Thaddeus Medical Systems

The gyroid lattice structures inside the IQ-ler [Image courtesy of Thaddeus Medical Systems, per Diversified Plastics]

Aliza Alverson, sales engineer at DPI, recalled that Thaddeus’ file sies for the gyroid lattice structure were intricate and large. “So, they worked with our in-house engineering team to make the design manufacturable using DPI’s Acceleration Station. We printed samples with different lattice sizes and material options, including EPU 40 and SIL 30, both of which are used for prototypes as well as production parts. The prototypes made from SIL 30 met the desired performance requirements.”

“One of the most exciting parts of our job as a contract manufacturer is to see the evolution of a part and the success of the product it goes into,” Alverson said.

Thaddeus is now working with Christian Brothers University fon product testing, such as vibration and drop tests compared to competitors’ products.

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