DC Current Transducers

NK Technologies, San Jose, CA, has introduced a series of DC current transducers. The DT-FD series provides a large sensing window and the ability to safely monitor circuits with voltages up to 1500 VDC, and up to 400 A. The sensor can be mounted on a DIN rail or attached to a back panel with screws. The easily accessible power supply, output-signal, and finger-safe terminals are located on the top of the sensor to allow for a clean and trouble-free installation. The one-piece design combines the current sensing elements and the signal conditioning to provide an output compatible with most control systems. Features include industry standard analog output and externally powered 24 VAC or DC.

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Miniature Coded Structures

Mimotec SA, Sion, Switzerland, has developed a process to manufacture miniature coded structures as mold inserts using proprietary CLR-Liga technology. The inserts can be placed at the tip of ejector pins or in other noncritical areas, forming a coded logo or text, invisible to the naked eye, each time an injection molded part is made. The patterns are created using diffractive nanostructures, tuned to laser light frequencies. A simple laser pointer reveals the text or image, so inspections can easily be performed in the field. For clear material, the light will shine through and project the message onto a surface behind the part. In the case of opaque material, the message will be reflected to a surface held at an angle.

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Medical Extrusions

Spectrum Plastic Group, Alpharetta, GA, recently launched an upgraded e-commerce store on behalf of Apollo Medical Extrusion. The online store showcases the company's quick turn, off-the-shelf extrusion program. Products, which are available as both stock and custom, feature the most common medical-grade materials and additives related to catheter delivery system development and innovation. Examples include single-lumen tubing with ultra-thin walls down to 0.003 in. (0.08 mm), dual-, triple-and quad-lumen medical tubing, and 5-lumen steerable catheter liners. Tubing and catheters are available in Nylon 12, Pebax® (35D-72D), PEEK, and FEP with radiopaque and low-friction additives.

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High-Temperature Adhesive

EpoxySet Inc., Woonsocket, RI, offers advanced polymers used extensively for medical device manufacturing. Included are high-performance biocompatible adhesives, sealants, and potting materials approved and certified to USP Class VI and ISO-10993-5, including EB-177, a very high-temperature adhesive used extensively in medical devices. This epoxy can withstand continuous operation at 250 °C and intermittent temperatures to 300 °C. Approved to USP Class VI for biocompatibility, it is used in any applications where high strength at elevated temperatures is required. It also provides excellent optical transmission of over 95 percent at 1500 nm with a refractive index of 1.52.

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Wall Mounting Kit

OKW Enclosures, Bridgeville, PA, has launched a new suspension element for its EVOTEC designer tabletop enclosures, enabling them to be wall mounted. The wall kit makes the enclosures ideal for access control. Although designed for EVOTEC, the new suspension element will suit any small plastic enclosure with a flat base. Each kit comprises two parts: an adapter attached to the enclosure and a holder fitted to the wall. The adapter (and enclosure) can then be clipped to the wall holder. The adapter is attached to the base of the enclosure using four tamperproof Torx stainless steel screws (supplied). Both the adapter (4.17 × 2.95 in.) and the holder are molded from UV-stable ASA+PC-FR (UL 94 V-0).

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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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