RTP Company, Winona, MN, has released a group of proprietary alloys that are formulated for the design and manufacture of hospital equipment and plastic housings that require frequent disinfection. The RTP 2000 HC series materials offer superior resistance to the damage, cracking, and premature failure caused by harsh cleaners and disinfectants. Ideal applications include equipment such as x-ray machines, enteral feeding devices, drug pumps, blood filtration, and other frequently cleaned apparatus.

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Soft-Skin Adhesive

DowDuPont Specialty Products Division, Wilimington, DE, has released a soft skin adhesive. The Dow Corning MG 7-1010 soft skin adhesive for medical device applications can be used for wearable monitoring devices, wound care products, medical tape applications, and medical device attachments. This adhesive allows designers to tune the coat weight and adhesion level for greater flexibility in manufacturing. The adhesive has high anchorage properties that can be direct or transfer coated. It is a two-part, low-viscosity silicone adhesive that provides excellent adhesion to stainless steel and polycarbonate substrates.

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Halogen-Free Parylene

Specialty Coating Systems, Indianapolis, IN, has developed a halogen-free variant of Parylene. The company developed ParyFree in support of the global initiatives that continue to drive toward the elimination of halogens in electronics. ParyFree is applied through a vapor deposition process that results in an ultrathin, uniform, pinhole-free conformal coating. The thin film forms at a molecular level to fully encapsulate components and devices, offering complete protection and increased reliability of intricate, complex electronic devices. The coatings were tested in accordance with BS EN 14582:2007 at an independent testing facility. The results show that there are no detectable levels of chlorine, bromine, fluorine, or iodine.

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Translucent Compounds

A new compound from Foster Corp., Putnam, CT, offers lower lubricity and translucency in medical device components when added to lower durometer TPU and Pebax polyamide elastomer compounds. Similar to the existing ProPell product line, ProPell T offers reduced coefficient of friction (CoF) while maintaining critical mechanical properties and improved manufacturing and handling of medical catheter tubing. It also offers a proprietary surface-enhancing additive that also provides translucency. It reduces tackiness and friction in medical device components, especially soft, flexible polymers such as low durometer TPU, commonly used in central venous catheters (CVC), and Pebax polyamide polymers that are used in interventional vascular catheters.

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Shin-Etsu Silicones of America, Akron, OH, offers a line of optically clear silicones. The KEG-2000 LIMS products have consistent properties from batch to batch and offer dynamic viscosity. The silicones have high clarity and range in Shore A hardness from 10 to 80. Additionally, the products have been tested for compliance with FDA, USP Class VI, and ISO 10993 regulations. The products can be used as is or colored easily.

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3D Printing Ceramics

Morgan Advanced Materials, Windsor, UK, has released a line of materials suitable for 3D printing for use in radiological applications such as x-ray power tubes. The AL-300™ grade alumina ceramic, known for its dielectric strength, strong metallization capability, and high strength, is now available for 3D printing. Using 3D printing, cooling channels can be integrated for high-temperature applications.

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Medical Design Briefs Magazine

This article first appeared in the March, 2019 issue of Medical Design Briefs Magazine.

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