PRODUCT OF THE MONTH — UV LED Curing System

Excelitas Technologies, Waltham, MA, has expanded its OmniCure® product line with a higher power UV LED curing system for fiber optic coatings. The new OmniCure AC8225-F+ features a custom optical design that provides optical performance over longer working distances, a typical requirement for fiber coating processes. The compact, air-cooled UV LED curing system can be easily integrated into existing or new production lines and is ideal for optical fiber coating or marking applications. The system provides high peak irradiance of up to 16 W/cm2 at 10–15 mm working distances, as well as excellent uniformity for rapid, even curing with greatly reduced power consumption compared with traditional lamp solutions or other LED products. An optional replaceable window is available.

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Analog Front End

Analog Devices, Norwood, MA, has announced a low-power biopotential analog front end (AFE), designed to enable development of smaller, lighter, and less-obtrusive cardiac monitoring devices with longer battery life. The AD8233 AFE is a fully integrated, single-lead electrocardiogram (ECG) front end designed in a single, compact, easy-to-use component. The out-of-the-box AFE eliminates the need to design ECG front ends from individual components. The AFE’s 2.0 1.7 mm size enables the design of wearable health devices that are smaller, lighter, and easier to wear. The AFE’s low microamp-range power consumption results in greatly extended battery life.

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Etched and Formed Micro Metal Parts

Tech-Etch, Plymouth, MA, combines photochemical etching with precision metal bending to create extremely small formed features in thin metal parts. Tool and die makers use state-of-the-art techniques to manufacture tools capable of forming features down to 0.003 in. in a wide variety of metals. Parts range in thickness from 0.0005 in. up. While providing quick turnaround and low tooling costs, photoetching produces burrfree parts with intricate and complex shapes. Laminating, plating, heat treating, and assembly are available in house. The ISO 9001:2008 registered company manufactures precision metal parts, flexible printed circuits, and EMI/RFI shielding products.

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Development Platform

Designed for health, wellness, and high-end fitness applications, the ultra-small hSensor Platform is offered by Maxim Integrated Products, San Jose, CA. The platform includes an hSensor board, complete firmware with drivers, a debugger board, a graphical user interface, and an ARM mbed hardware development kit. With access to firmware source code on the company’s web site, the platform allows designers to load algorithms for different use cases and adapt to their specific applications. Customers can download the firmware to optimize designs, enable faster evaluations, and reduce time to market. The platform is suitable for applications such as chest straps, ECG patches, wrist-worn devices, and other medical products.

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Circular Cold Saw

Behringer Saws, Morgantown, PA, has added the VA-L 500 to its line of high-performance circular cold saws for production cutting of aluminum and nonferrous materials. The VA-L 500 can saw the full range of aluminum alloys and other nonferrous materials in solids, thinwalled pipe, and profiles. The saw comes standard with a 32 HP frequency-controlled drive motor with 800–3400 RPM speed range and a servo-driven downfeed with an adjustable rate from 0.39 to 19.6 in./sec, to ensure the fastest possible cut times. The fully automatic circular cold saw has a cutting range of 6.0 in. (152 mm) for round materials or 6 × 6 in. (152 × 152 mm) for square materials at 90° using a carbide-tipped circular saw blade with a diameter of 19.6 in. (500 mm).

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High-Performance DC Fans

CUI, Tualatin, OR, has added a high-performance dc fan line to its existing thermal management portfolio. The CFM series with frame sizes of 40, 50, 60, 70, 80, 92, and 120 mm delivers airflow ranging from 10 CFM in the 40 mm series to over 200 CFM in the 120 mm series. Available with rated voltages of 5, 12, 24, and 48 VDC, all dc fans feature dual ball bearing construction for maximum reliability and come as standard with auto restart protection. Static pressure values for the CFM series range from 2.79 up to 19.8 mmH2O with low rated currents from 0.1 to 1.4 A. Options for tachometer signal, rotation detector, and PWM control signal are also available depending upon the model.

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Standoff Fasteners

PennEngineering, Danboro, PA, offers self-clinching stainless steel standoff fasteners with bright nickel plating. The PEM® standoff fasters provide corrosion resistance and contribute to an attractive finish in stainless steel assemblies. These 400 Series stainless steel threaded fasteners allow for the mounting, spacing, or stacking of panels, boards, or components and install reliably into thin stainless host sheets by pressing them into prepunched and properly sized round mounting holes. After installation into sheets with hardness up to HRB 88/HB 183, they become permanent parts of an assembly and will not loosen or fall out. A mating screw completes the attachment process.

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Media Isolation Valve

Clippard Instrument Laboratory, Cincinnati, OH, offers a media isolation valve that uses a flexible diaphragm to isolate the actuation mechanism from the fluid path. The NIV series solenoid-operated valves are commonly used in applications that require precise, repeatable dispensing of media for analytical instrumentation. All wetted areas of the valve are PTFE, making this series ideal for use with corrosive media. A one-piece valve stem functions as a sealing membrane while also supporting and centralizing the poppet in the seating area. This multifunctional poppet/diaphragm/stem results in a simplified design with fewer parts for the two- and three-way valves, longer life, and zero dead volume.

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Embedded Computer

VersaLogic, Tualatin, OR, has released the next generation of the company’s embedded processing unit (EPU) format. The Osprey combines processor, memory, video, and system I/O into an extremely compact full function embedded computer. The EPU was engineered to meet requirements for smaller, lighter, and more powerful embedded systems. Roughly the size of a credit card and less than 1.1 in. (28 mm) thick, the Osprey combines the new fourth generation Intel® Atom™ Bay Trail processor, with new system interfaces, in a form factor designed to withstand extreme temperature, impact, and vibration.

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Fiber Optic Micro Switch

Micronor, Camarillo, CA, has launched a fiber optic micro switch designed to meet the requirements of MRI, medical, and industrial applications. The MR386 ZapFree™ Microswitch is interchangeable with industry standard V15-series electrical micro switch. The MR386 is said to outperform conventional electrical micro switches and limit switches. The entirely nonelectrical, totally passive sensor provides EMI and RFI immunity, isolation from high voltage and lightning and inherent safety in explosive atmospheres. It can operate interference-free over distances up to 1500 m.

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SPDT PIN Diode Switches

Fairview Microwave, Allen, TX, has introduced a new line of single pole double throw (SPDT) PIN diode switches. The switches are designed to offer exceptional reliability and repeatable performance in compact and rugged coaxial packages. Fast switching speed performance is critical in applications where multiple switches are being used in series, or where highly sensitive transmit and receive switching rates need to be established. The line includes 23 models, covering frequencies from 10 MHz to 67 GHz. Isolation levels up to 80 dB ensure that unwanted signals will not leak into the desired signal path.

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Automated Dispensing

Graco Advanced Fluid Dispense (AFD), North Canton, OH, has released a fully automated precision dispense solution that provides a single source for motion, fluid dispense, and process monitoring for thermal interface management (TIM) applications. The Graco UniXact helps electronic manufacturing customers shift from thermal pads to dispensable material, which is widely used for thermal management of smaller electronic devices. The unit is designed to handle TIM materials that are highly viscous and highly abrasive. It features a 1-gal Dynamite Pump and Graco rod-positive displacement valves, which eliminate the drawbacks associated with time-pressure valves.

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Power Supply

Power Partners, Hudson, MA, has released a new series of AC/DC desktop power supplies. The 72-W Level VI PEAD72 series, which has a package size of 4.45 × 1.93 × 1.37 in., can have either a Class I or Class II configuration. The power supplies have a universal input of 90–264 VAC and are offered in single output models of either 12, 15, 18, 19, 24, 36, or 48 V. Features include 100,000 hours per MIL-HDBK-217F at full load and 25 °C ambient.

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Laminar Flow Cabinets

Laminar flow cabinets from Air Science, Fort Myers, FL, are designed to protect the work surface, products, and materials from particulate contamination. Room air first passes through a HEPA filter then uniformly through the cabinet interior by laminar flow to protect work from unfiltered air. Airflow is oriented to exhaust airborne particulate introduced by the user. The Purair FLOW series employs the company’s Multiplex™ HEPA filtration technology to sustain the contamination-free environment. The ISO Class 4 cabinets are available in three model sizes with various options.

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Position Hinge

A position hinge from Reell Precision Manufacturing, St. Paul, MN, incorporates unique engineering in a compact design to hold the angle of mounted components reliably in any position in especially small assemblies. The RT-50 hinge’s 5 mm size and constant torque capabilities (1–3 lbin/ 0.11–0.33 N•m) are suitable for demanding applications with limited footprints where precise position control for components is necessary and critical. An optional dual-ended mounting configuration enables a single hinge to be used in place of two. Hinge shaft-end attachment styles include flag, straight, and exposed knurled shaft.

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Metal Injection Molding Service

Smith Metal Products, Center City, MN, offers metal injection molding (MIM), an alternative to machining parts out of raw metal stock. MIM is often a more effective process to achieve precision parts while eliminating machining because MIM parts are precise, net-shaped parts that are produced faster and usually with no secondary operations. Parts that are suitable for MIM processing include those that have annual volumes of 10,000 pieces or more and a finished part weight of less than 100 g (3.5 oz). All dimensions of the component should be 3 in. or less, and the maximum wall thickness should be 3 mm (0.125 in.) or less. MIM products must be ferrous metals.

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Wound-Care Adhesives

Lohmann, Orange, VA, has launched a custom adhesive specifically designed for manufacturers of wound-care products. The DuploMED Soft-Stick™ Series features gamma-sterilization stable, gel-like pressure-sensitive adhesives with all the advantages of traditional silicone adhesives for pain-free, easy-off adhesion — important for patients with fragile skin. Soft-Stick is permeable to water vapor, and is painless and residue-free. Dressings can be contoured to the wound and sealed around the edges. They can be applied, repositioned, and removed without pain or the risk of damaging fragile skin.

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Machining Center

Methods Machine Tools, Sudbury, MA, has added a horizontal machining center with a column traverse structure to its current KIWA line. The KIWA-Japan Triple H40 supports flexible mounting of various fixtures and rotary tables based on the application. The stationary table design enables long workpieces to be clamped firmly to the table, eliminating the back and forth action of moving parts with special guarding and allowing machining access to either end of long workpieces. The compact machining area measures 43.3 × 23.6 × 31.5 in. (1,100 × 600 × 800 mm).

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Dual Channel Buffers

Integrated Device Technology (IDT), San Jose, CA, has introduced four high-performance, low-power, LVDS dual-channel fanout buffers. The new 1.8 V buffers in the IDT® 8P34S family enable the simultaneous fanout of high-frequency clock and data signals, with very low additive phase jitter of typically

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Linear DC Micro Welder

Amada Miyachi America, Monrovia, CA, has added a linear DC micro welder to its existing product line. The UB29A provides a larger current range, greater control, and markedly faster rise time for micro-miniature resistance welding than existing micro welders. It features closed-loop feedback, fast response times, and a controlled precise energy waveform. The welder delivers an output power range of 15–1500 A in four control modes: current, voltage, power, and V-A (voltage- current). It delivers a precisely controlled, repeatable waveform with an ultrafast rise time of less than 200 microseconds.

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Medical Design Briefs Magazine

This article first appeared in the February, 2017 issue of Medical Design Briefs Magazine.

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