Innovations in medical materials make mark at MD&M West

Several suppliers of medical-grade materials are introducing innovative additions to their product lines at the co-located Medical Design & Manufacturing (MD&M) and PLASTEC West event, currently at the Anaheim Convention Center in Anaheim, CA, through Feb. 7. Here are three.

DowDuPont MG 7-1020 Soft Skin Adhesive
DowDuPont's MG 7-1020 Soft Skin Adhesive delivers strong adhesion, and extended wear properties.

The Specialty Products division of DowDuPont (Midland, MI) is introducing its MG 7-1020 Soft Skin Adhesive for skin-adhered medical devices at booth 3001/3005. Based on advanced silicone technology, the product delivers strong adhesion and extended wear, as well as design and manufacturing flexibility, while preventing user discomfort that is common with the removal of acrylic adhesives, said DowDuPont.

The MG 7-1020 provides the strongest adhesion available from the company's soft skin adhesive portfolio, making it suitable for wearable monitoring devices, medical tape and medical device attachments. It also delivers extended wear time up to more than one week. This combination of factors can work well for manufacturers using pumpable patches for biologic drug delivery as an alternative to injection pens, said DowDuPont.

Because this new solution maintains its adhesive strength even at lower coat weights, designers can fine-tune the coating application to match desired wear and cost parameters for the device. The product can be direct- or transfer-coated onto a variety of backing substrates, including woven and nonwoven fabrics.

For manufacturers, the new adhesive features a longer working (pot) life at higher ambient temperature and humidity conditions than traditional adhesives to avoid premature auto-curing, which can degrade the effectiveness of the adhesive, said DowDuPont. This two-part, low-viscosity silicone adhesive also offers fast cure rates across a wide range of temperatures.

Tray cool

At booth 2414, Solvay (Brussels) is showcasing sterilization trays for surgical instruments made from its Radel polyphenylsulfone (PPSU) resin. Legacy Medical Solutions, which manufactures the trays, chose the resin because of its strength-to-weight ratio and its ability to withstand high-pH cleaners during repeated sterilization cycles and high-temperature autoclaves.

The 23.5 x 5 x 5.6 inch trays comprise a thermoformed PPSU transparent lid and opaque base tray that secures with a metal clamping system. The transparent lid provides visibility of the tray’s contents for added convenience. The base tray is up to 50% lighter than conventional models fashioned with anodized aluminum, and it features large drilled holes for effective venting during sterilization, reported Solvay.

The PPSU resin also provides the tray with superior impact strength, flexibility and chemical resistance. Importantly, the material is compatible with all commercial sterilization methods, including repeated autoclaving at 280°F (138°C) for sustained periods of time.

High-flow grade for thin walls

Covestro (Leverkusen, Germany) is presenting its new Makrolon Rx2235 polycarbonate in booth 2221 at MD&M and PLASTEC West. The new high-flow grade helps manufacturers fill very thin walls and accurately replicate intricate features with lower pressures, according to the company. The material is formulated for applications such as on-body devices, surgical instruments, pen injectors and IV components.

Covestro also is unveiling a connected drug-delivery device prototype at the Anaheim event. It incorporates various elements expected to be used in the future, such as clear and easy-to-understand language for self-administering patients, connectivity with the healthcare provider to ensure adherence, automatic detection of refill needs and more.

MD&M West and PLASTEC West will continue at the Anaheim Convention Center in Anaheim, CA, through Feb. 7.

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