Eastman Chemical Company, DD Studio, PolyOne and Phillips Plastics have teamed up to create a vitals monitoring device for Sotera Wireless. The ViSi Mobile will measure blood pressure and heart rate, and it will be chemically resistant and waterproof.
The ViSi Mobile™ system is composed of a wireless device that straps to a patient’s arm to monitor vital signs, such as blood pressure and heart rate; a monitoring device to keep clinicians connected to patients’ information; and a charging station.
The device’s lens, housing, printed circuit board assembly and connectors are made with Eastman Tritan™ copolyester MX711. The cold-swaging ability of Tritan allows for fit and press assembly of the device, which offers a tight, smooth, continuous fit between parts; allows for joining parts without the use of chemicals, adhesives or mechanical fasteners; and saves energy. By utilizing Tritan, the device features superior resistance to chemicals used in disinfectants and cleansers — without cracking or crazing. The material also exceeded durability requirements, which is particularly valuable in mobile devices that are used frequently or could be dropped or damaged should a patient fall.
To protect the device from water and fluids found in the hospital environment, it had to meet IPX7 requirements of withstanding water submersion for 60 minutes at a depth of 1 meter. DD Studio relied on compatibility samples and testing results from PolyOne to select GLS Versaflex™ OM 3060 TPE. It successfully adheres to the Eastman Tritan™ copolyester substrate to seal the device housing, including speaker port and microphone, from water seepage and protect internal electronics.
Press release: Eastman Tritan™ Copolyester Ensures Innovative Wireless Medical Device is Durable and Chemical-Resistant…
Product page: Eastman Tritan…
Product page: ViSi Mobile…
