Design Con 2015

Medical

Michael Dunn
Editor, Design Ideas, IC/FPGA, PCB, and Medical Design Centres
This site is especially for the savvy biomedical electronics design engineer who wants to be at the forefront of medical technology advancements from sensors to signal conditioning circuitry to data converters, microcontroller and interfaces and more. Wireless communication and wireless data transfer are among the key topics of discussion.

LED-based sensors for wearable fitness tracking products

The surge in bio-sensing armbands, smartwatches, smartphones, and other fitness-oriented wearable products that employ optical sensing technologies would not have been possible without the dramatic reductions in cost and power brought by LEDs. Read More...

Improve device reliability via PCB cleanliness

Today’s electronic assemblies require better cleaning than ever to ensure reliability uncompromised by PCB contamination. Read More...

Product how-to: Achieving STARC and DO-254 compliance using HDL Coder-generated code

Learn how to transform models into standards-compliant, high-reliability HDL. Read More...

Cable material design criteria for the medical industry

This paper examines the particular design and fabrication challenges of medical cables, including the design parameters, material choices and manufacturing requirements that medical device manufacturers need to know to ensure that medical device interconnection is precise, reliable and durable – and protect them from liability. Read More...

Micro DC/DC converters fit wearable devices

With a 6-MHz power switch embedded in its miniature PCB, the TDK EPCOS B30000P80 ultra-compact DC/DC converter module saves up to 35% of space compared to conventional discrete solutions for use in wearable devices and cameras, as well as WLAN, GPS, and Bluetooth applications. Read More...

Straightjacket with a heartbeat

This DIY Halloween costume is a straightjacket with an EL wire heart that displays the heartbeats picked up by a modified stethoscope. Read More...

Failure modes of wearable electronics

This article will provide insight into the environments and issues that can specifically impact wearable electronics and provide guidance on methodologies for assuring reliability. Read More...

Simple pulse oximetry for wearable monitor

Use this circuit as the “heart” of a pulse oximeter and oxygen saturation monitor. Read More...

Tattoo bio-batteries produce power from sweat

Researchers University of California San Diego have designed a sensor in the form of a temporary tattoo that can both monitor a person's progress during exercise and the tattoo biobatteries can also produce power from the perspiration. Read More...

Bluetooth v4.1: What developers need to know

Here’s how the newest chips can take advantage of the latest version of Bluetooth technology’s new functionality Read More...

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Circuit discriminates & recovers noisy pulses

Noisy pulse trains with widely-varying amplitude are recovered with this DI circuit. Think transducers… Read More...

Simple pulse oximetry for wearable monitor

Use this circuit as the “heart” of a pulse oximeter and oxygen saturation monitor. Read More...

Avago Tech Note: 14.2mm wide Creepage and clearance optocouplers for high-voltage applications

Not any optocoupler will do for applications requiring extra-high-voltage isolation. Read More...

Inductive sensing with left-handed antenna for biomedical applications

Could an inductive sensor help assay biological and other substances? Read More...

Elastomer-assisted inductive sensing

Embedding inductive coils under an off-the-shelf mattress pad creates a multi-point position and pressure sensing system for sleep-posture analysis. Robotic applications also beckon. Read More...

Water & vandal-proof keypad uses piezoelectric disc as sensor and buzzer

An ingenious and low-cost method to create a rugged “UI”. Read More...

Linearize thermistors with new formula

Optimize thermistor performance at any preferred temperature. Read More...

Best Design Ideas of 2013Q3

We present the best Design Ideas of the last quarter! Read More...

Single-cycle logarithms & antilogs

Here are some very fast log (and antilog) blocks well-suited to FPGA implementation. Read More...

Adaptive Schmitt trigger tames unruly signals

Some biomedical, sensor, and other signals can be almost impossible to derive a clean trigger from. This circuit could help. Read More...

∑-∆ Isolation amplifier transfers low frequencies across barrier

Running a ∑-∆ stream over the barrier makes for an inexpensive analog isolator. Read More...

Filter quashes 60-Hz interference

This circuit filters 60-Hz interference from low-frequency, low-level signals. Read More...

Quartz crystal-based remote thermometer features direct Celsius readout

Although quartz crystals have served as temperature sensors, designers haven't taken advantage of the technology because few manufacturers offer the sensors as standard products (references 1 and 2). In contrast to conventional resistance- or semiconductor-based sensors, a quartz-based sensor provides inherently digital-signal conditioning, good stability, and a direct digital ou... Read More...

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EDN Hot 100 products of 2014

Of the many thousands of products announced during the past year, these are 100 that especially caught the attention of our editors and our readers. Read More...

Micro DC/DC converters fit wearable devices

With a 6-MHz power switch embedded in its miniature PCB, the TDK EPCOS B30000P80 ultra-compact DC/DC converter module saves up to 35% of space compared to conventional discrete solutions for use in wearable devices and cameras, as well as WLAN, GPS, and Bluetooth applications. Read More...

Tiny piezoelectric sounder fits portable healthcare devices

With dimensions of just 9x9x1.7 mm, the lightweight PKMCS0909E4000-R1 surface-mount piezoelectric sounder from Murata offers a combined weight and area reduction of 44% compared to previous Murata sound components. Read More...

Wearable MEMS gyroscope tracks up to ±4000 dps

Housed in a 3x3x0.75-mm QFN package, the ITG-3701 three-axis MEMS gyroscope from InvenSense offers small size, low power, and a full-scale range of up to ±4000 dps (degrees per second) for high-impact wearable applications, such as sports and concussion analysis. Read More...

Processor integrates sensing, wireless for wearable apps

Toshiba's TZ1001MBG application processor is aimed at wearable devices of all shapes and usages, including activity monitors, wrist-worn electronics and head-mounted computers. Read More...

Disposable and rugged BP sensor

Merit's BP sensor uses piezoresistive technology. Read More...

Ada comes to ARM Linux

Ada support is now available on embedded ARM processors running Linux for safety critical code development. Read More...

V-Lock compatible power connector integrates 10A fuses

Schurter’s KEA series power entry module, with 1- or 2-pole fuseholder, now mates with V-Lock cord sets. Read More...

Renata shrinks size of Li-ion polymer batteries

The Renata Batteries division of the Swatch Group has added three new models to its ICP series of rechargeable lithium-ion polymer battery packs to give design engineers more form factors and capacity ratings from which to choose for their portable medical, industrial, and consumer electronic devices. Read More...

Mission-critical RTOS available for Renesas MCUs

The Wittenstein High Integrity Systems real-time operating system for mission-critical systems is now available for Renesas RX631/RX63N microcontrollers. Read More...

Digital UV index sensors add health monitoring to smartphones, wearables

Silicon Labs' single-chip Si1132/4x optical sensors track UV exposure, ambient light and other biometrics to add health-monitoring functions to smartphones and wearable computing products. Read More...

12-V, 750-mA DC/DC nano-size buck regulator

With a pre-set switching frequency of 2.1 MHz, designers will really like the small surface mount capacitors and inductor external to this tiny buck regulator. Read More...

PSU packs 310W without skimping on MTBF

Emerson PSU rated for non-patient contact and industrial usage. Read More...

60W world medical PSU is fully burned-in

Australian firm Powerbox manufactures for the domestic and world market. Read More...

Chip amalgamates many functions needed for healthcare devices

This combination data acquisition chip and computational engine addresses the requirements of health devices, fitness meters, wearable monitors, and more. Read More...

60W medical PSU fits into small spaces

SL Power's newest internal PSU fits into tight spaces, like a 1U chassis. Read More...

Medical USB modem

When the only way to communicate medical data is via phone line, a modem is still the solution. Read More...

Transformers work with TI power driver for isolated supplies

Wurth Electronics Midcom offers a series of four transformers for the Texas Instruments SN6501 oscillator/power driver, a push-pull device that is intended for small-form–factor isolated power supplies used in CAN, RS-232, RS-485, SPI, I2C, and low-power LAN interface applications. Read More...

A gaggle of ultrasound components

Supertex introduces a trio of chips for ultrasound designs. Read More...

External medical PSU reaches 250W

This new external, medical qualified supply sports high power output. Read More...

Medical PSUs up to 500W are compact and efficient

Qualified open-frame medical supplies cover 300-500W. Read More...

Medical LED improves operating-room lighting

The Osram Ostar Medical combines a high color-rendering index (CRI) of 95 and the ability to adjust the temperature of the color white. Read More...

DSP-based system-on-chip targets hearing aids and hearing implant devices

ON Semiconductor's Ezairo 7100 series of integrated circuits and packaged hybrids are aimed at hearing aids and hearing implant devices. Read More...

Ultrasound transceiver is highly integrated

Maxim's new octal ultrasound transceiver greatly simplifies equipment design. Read More...

TI unveils smallest 2.5-kVrms digital isolation devices

Texas Instruments (TI) has introduced the industry’s first family of digital isolation devices to offer the highest isolation rating, at 2.5 kVrms, in a small, 5- by 6-mm QSOP package. Read More...

75W supply provides dual BF & CF outputs

BEAR's latest medical supply has BF & CF outputs. Read More...

Medical PSU reaches 180W

XP Power's latest approved power supplies are rated 180W. Read More...

Analog Devices 5 Msps 18-Bit SAR ADC

SAR converters seem to be pushing the envelope due to digitally enhanced analog circuitry, higher number of transistors per chip and better matching capability on chip---these are some reasons why SAR converters are achieving higher dynamic ranges and speeds than ever before. Read More...

85W external medical PSUs meet latest standards

Protek's latest external supplies are suited to medical uses. Read More...

Flexible conformal coating meets ISO 10993-5

A conformal coating that's flexible enough for flex circuits. Read More...

Sensor-enabled RFID tags extend wireless data-logging beyond ID

ams AG has introduced next-generation sensor-enabled RFID tags which claim to offer breakthroughs for medical, automotive safety and other applications where temperature, physiological or environmental data is required. Read More...

Medical-grade chip capacitors are surge-tested

Surface-mount molded solid-tantalum capacitors in the TM3 series from Vishay aim to improve performance and reliability in a wide variety of non-life-support medical monitoring and diagnostic instruments for both in-home and hospital use. Read More...

CUI high isolation, 105 degrees C DC-DC converters

CUI Inc introduced a family of low-power board mount dc-dc converters that provides 3,000 Vdc I/O isolation and a wide operating temperature range of -40~105°C. Read More...

TI introduces SafeTI Compiler Qualification Kit to ease functional safety development for automotive and medical

Designers of functional safety applications can use the kit to assist in qualifying their use of the TI ARM Compiler to IEC 61508 and ISO 26262 functional safety standards. Read More...

COTO claims RedRock is industry’s smallest MEMS magnetic reed switch

Coto Technology Inc., announced at the Design West Conference the availability of its RedRock™ RS1-A-2515 MEMS-based magnetic reed switch. Based on its unique high aspect ratio, MEMS design and manufacturing processes, the switch provides all of the advantages of conventional magnetic reed switch technology, including zero power operation and high-power hot switching. Read More...

Grayhill’s Instinct 2.0 gesture recognition library for 3D image manipulation

Grayhill, Inc. released the latest version of its Instinct™ Gesture Recognition Library. Instinct is a software tool that converts multi-touch sensor data into gestures, giving any device functionality similar to the iPhone®. Read More...

Freescale Healthcare AFE reference platform

Freescale’s Healthcare AFE reference platform is able to integrate a full set of solutions for portable medical and personal healthcare applications. Read More...

Compact low profile “green” 225 W power supply for IT, industrial and medical applications

XP Power announced the ECP225 series of efficient low profile AC-DC power supplies. Delivering up to 150 W by convection cooling alone, the units deliver a maximum of 225 W when a forced air flow of only 10 CFM is applied. Read More...

Cephasonics ultrasound API software version 3.0

API incorporates multiple features based on user feedback that simplify end-product development Read More...

365W AC/DC single-output power supply for ITE and medical

LHV Power Corporation (www.lhvpower.com) has added an AC/DC single-output power supply series that provide up to 365 watts of continuous power at typical efficiencies of 90 percent. The LVOM-365 series is for use in medical equipment and ITE switching applications and has received full medical, ITE, EN60601-1 and EMC safety approvals. Read More...

Vocia 1.5 for voice evacuation and public address systems

Biamp Systems, a provider of networked media systems, announced the launch of five new products in its Vocia 1.5 release. Read More...

Low-noise, energy-efficient chokes for MRI scanners

SMP Sintermetalle Prometheus (SMP) has developed chokes for use in Magnetic Resonance Imaging (MRI). These inductive components are exceptionally quiet in operation as well as being low-loss and energy-efficient. Read More...

High-density single output 160W AC/DC medical power supplies

LHV Power Corporation introduced a family of ultra high-density AC/DC single output power supplies that provide up to 160 watts of continuous power at typical efficiencies of 90 percent. Read More...

Non-magnetic combination D-subminiature connectors for medical imaging equipment

CONEC, a manufacturer of high-quality connectors, has developed a series of non-magnetic combination D-subminiature connectors for advanced medical imaging equipment. Read More...

TI lowest-power octal, 100-MSPS ADC for medical, industrial imaging applications

Texas Instruments introduced an octal, 12-bit, 100-MSPS analog-to-digital converter (ADC) that provides the lowest power consumption in its class. Read More...

MCU design with communications protocol stack for remote medical systems

Energy Micro announced a partnership with Lamprey Networks Inc. (LNI) to provide energy friendly, secure and certified remote monitoring medical electronic systems. Read More...

Medical device to help seniors stay independent

The Sonamba well-being status monitor/medical alert system integrates Freescale technology for processing, power management, and wireless connectivity. Read More...

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Teardown: Inside Given Technology's Pillcam Colon 2

Low-power wireless and sensor experts from Zarlink-Microsemi and Aptina helped Given Imaging optimize the Pillcam Colon 2, a gentler alternative to conventional endoscopy and colonoscopy. Read More...

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LED-based sensors for wearable fitness tracking products

The surge in bio-sensing armbands, smartwatches, smartphones, and other fitness-oriented wearable products that employ optical sensing technologies would not have been possible without the dramatic reductions in cost and power brought by LEDs. Read More...

Improve device reliability via PCB cleanliness

Today’s electronic assemblies require better cleaning than ever to ensure reliability uncompromised by PCB contamination. Read More...

Product how-to: Achieving STARC and DO-254 compliance using HDL Coder-generated code

Learn how to transform models into standards-compliant, high-reliability HDL. Read More...

Cable material design criteria for the medical industry

This paper examines the particular design and fabrication challenges of medical cables, including the design parameters, material choices and manufacturing requirements that medical device manufacturers need to know to ensure that medical device interconnection is precise, reliable and durable – and protect them from liability. Read More...

Young ASU Tempe engineers saving the lives of infants

Every three minutes an infant dies needlessly in some remote African village, unnoticed by all except the mother, father, family and their small village. How can we save them? Read More...

Antenna ring-down time measurement for medical applications

Measure the ring-down time of antennas used in EPR & NMR. Read More...

Product how-to: Decimation and AC line rejection filtering – a study

Programmable SoCs allow the creation of an entire data acquisition system on a chip. Read More...

Product how-to: Selection of reliable, small form-factor passives for medical devices

Learn about some of the factors to consider when selecting tiny hybrid & PCB-capable passives for medical designs. Read More...

MSOs probe analog and digital

Mixed-signal oscilloscopes combine analog and digital inputs that provide a view of how signals interact in embedded systems. Read More...

Tools and techniques for electrical characterization of biosensors

Learn about the technology and characterization of bioelectronic sensors, which are finding use in healthcare as well as other areas. Read More...

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5 rules for playing nice with IoT gateways

Here are some design considerations that might help avoid mass confusion in the IoT. Read More...

7 steps to security for the Internet of Things

Keeping IoT devices and their data secure will be essential as the IoT grows. The principles of enterprise security are a good approach to take. Read More...

7 weird IoT applications

With all the potential and creativity in play with the IoT, it is not surprising that every now and then you will come across an application that is simply weird. Read More...

Straightjacket with a heartbeat

This DIY Halloween costume is a straightjacket with an EL wire heart that displays the heartbeats picked up by a modified stethoscope. Read More...

Tattoo bio-batteries produce power from sweat

Researchers University of California San Diego have designed a sensor in the form of a temporary tattoo that can both monitor a person's progress during exercise and the tattoo biobatteries can also produce power from the perspiration. Read More...

Act fast to harness and optimize MEMS performance in portables

Starting to use MEMS technology in portable applications including wearables, healthcare, gaming or automotive? If so, tune in on Thursday, June 26 at 2:00 pm ET to catch Optimizing MEMS Performance in Portable Applications. Read More...

Is this the smallest battery in widespread use?

This grain-of-rice battery is not just an interesting lab-demonstration project; hundreds have been made and are in use in the field. Read More...

Pacemaker hacking dangers

Recently I came across some really good tutorials and tech articles discussing the security of pacemakers. A very large segment of our world population has pacemakers which has enhanced their quality of life and in many cases saved their lives. Read More...

Medical software standards: Boon & bane

The medical device industry is finally catching up to other industries in terms of software safety standards, but at what cost? Read More...

Hadron therapy, PXI team up against tumors

Hadron therapy for cancer treatment moves forward at the CNAO's synchrotron lab in Italy with the help of PXI & NI. Read More...

DIY biometrics

What kind of biometrics can we get and how can we use this information? Read More...

Inside ultrasound

This non-invasive technique uses sound waves to create images of what’s inside of the body---without radiation! Read More...

Ultralow-cost paper microscope shows promise for disease detection

The Foldscope, a completely functional microscope built purely by folding paper, can magnify objects over 2,000 times and is small enough to fit in a pocket. Oh, and it costs about 50 cents. Read More...

I'll take Watson for 2014, Alex

IBM's Watson wasn't just about winning Jeopardy. 2014 could see the beginning of a massive breakout of Watson technology in medical and many other applications. Read More...

3D-printed microbatteries to power your next medical design

3D-printed lithium-ion batteries a millimeter on a side could power medical devices. Read More...

Getting medical devices onto the LAN

Many medical devices use RS-232 communications and thus need converters to send data across networks. Read More...

Una nueva era de equipos médicos (A new era of medical equipment)

Las personas a veces me preguntan hacia donde se dirige la medicina. Mi respuesta es que la innovación médica del futuro será a través de la medicina genómica. Probablemente recuerden que durante la década de los noventas, los científicos trataban de mapear el genoma humano. Era una carrera entre el departamento de Energía y Ciencia en Estados Unidos y una compañía privada llamada Celera Genomics. (People sometimes ask me where medicine is going. My answer is that medical innovation of the future will be through genomic medicine. You probably remember that during the Decade of the 1990s, scientists were mapping the human genome.) Read More...

Medical happenings: March 2014

A look at recent news and happenings in medical electronics and design, from implantable energy harvesting, to BANs, to interferometer/MEMS-based sensors. Read More...

Smart watches: a healthy opportunity for OEMs

The smart watches of the near future promise to push the boundaries beyond simple time and data delivery as they move toward being true health trackers. Read More...

LED-lit urban farms aim to transform blighted cities with jobs, fresh food

A group of high-tech urban pioneers is using LEDs to power an indoor vertical farming system that will create good paying jobs and delicious pesticide-free greens. Read More...

A CES meeting with Paro, the therapeutic robot

Paro is a therapeutic robot that gives the well-known benefits of animal therapy to patients in hospitals and extended care facilities where live animals might cause logistical difficulties. Read More...

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