Health tech

Glucose levels are 100 times more concentrated in blood than in saliva, which is why in spite of many efforts to use saliva, diabetics are still pricking themselves to get accurate glucose readings.

But now, harnessing the power of nanotechnology, engineers at Brown University say they've designed a biochip that can measure glucose levels in saliva almost as accurately as current devices can measure levels in blood.

To do this, the engineers etched a complicated array of thousands of plasmonic interferometers (no, this is not an episode of Farscape) onto a fingernail-size biochip. This means they were essentially using … Read more

Any budding Dr. Frankensteins in the house? Here's a robot that's not only good for DIY surgery, it's open-source too.

The Raven II was developed at the University of California at Santa Cruz and the University of Washington and modeled on a system originally designed for military use. Five newly completed systems are being shipped to test centers throughout the U.S.

While the da Vinci Surgical System has been widely used for prostate and other surgeries because it's minimally invasive, the machine is very expensive and not portable. It also uses proprietary software.

The Raven II is more affordable at about $250,000 and its Linux-based operating system lets users modify code. Seven Raven IIs at centers including Harvard University and Johns Hopkins University will be linked together for collaborative experiments, according to UC Santa Cruz. … Read more

I have to hand it to Nike for its unique take on the growing fad of fitness-tracking devices.

The FuelBand is Nike's stab at this segment, which others including the Jawbone Up and Motorola Mobility's MotoActv have already tread. But with production of the Up halted for a battery issue, and Motorola's product still a little-known niche device, there's a big opening in the market.

Unlike some of the other devices, the primary crux of the FuelBand is its Nike Fuel reading, a metric that Nike put together on its own that matches a person's movement through the wristband's accelerometer against data collected on how rapidly oxygen is consumed. As with other fitness monitors that rely on an accelerometer, the readings vary greatly depending on how much you move your arm. Cycling and certain kinds of weight lifting, for instance, wouldn't register much as simply sitting on your couch and waving your hands.

But chances are, if you're spending $149 on a FuelBand, you're going to want to pay attention to the Nike Fuel readout.

Following a press conference that Nike held yesterday to unveil the device, the company took the media on a little field trip to test out the FuelBand in a variety of activities. The following are my early impressions after a day with the device. … Read more

Nike today introduced its FuelBand wristband device, which is designed to measure a person's daily movement and drive the athletic gear company further into the technology world.

The FuelBand is designed to provide users with the time, the number of steps taken in a day, and calories burned. But the main selling point is a newly created fitness metric called NikeFuel, which is based off the rate of oxygen consumption and motion. The wristband will retail for $149, and is available on February 22 in the U.S., May 1 in the U.K., and the rest of the world in the fall. … Read more

LAS VEGAS--A woman is pedaling leisurely on a stationary bike, her thick, dark braid draped delicately over one shoulder as she barely breaks a sweat. Someone whispers that she's Brazilian, and thus a real, live example of what you get with one of Velocomp's new workouts, Brazilian Butt. (Using a real, live Brazilian who presumably has said butt sans effort rather defeats the point, but I digress.)

Velocomp, creators of last year's iBike Dash, unveiled the iBike Powerhouse at CES this week--the Dash's bigger, badder cousin.

For $269, the handlebar-mounted cycling computer that includes a water- and shock-resistant case and syncs with the iPhone and iPod Touch is all about tailored workouts that remind you when you're slacking off.… Read more

LAS VEGAS--Fitbit, maker of a wireless clip-on activity tracker, is adding the Aria Wi-Fi scale to its lineup this April due, according to the company, to user requests.

The Aria has competition in the "smart" scale department, with the Withings booth and its very similar scales for adults and yes, even babies, just a few yards away.

But Fitbit has introduced a multiple-user feature that recognizes--out of as many as eight different users--who is standing on the scale. Think large households, dorm quads, sports teams, etc.

Priced at $129.99, Fitbit's first Wi-Fi scale can tally weight, body fat, and body mass index, and automatically uploads that info with every step on the scale to an online tool with graphs that perhaps too-handily track one's progress (or lack thereof). The online and mobile tools are free and also include weight goals and a food and exercise log.… Read more

LAS VEGAS--Long before "face unlock" on Android 4.0, Fujitsu developed an even more intimate method for secure user identification--your blood flow.

PalmSecure is a technology that's actually been around for a few years now in Japan, and in a number of business applications ranging from health care to banking, but not seen so much in consumer electronics in the U.S. It uses a biometric authentication system that reads your palm vein pattern. Fujitsu reps here at CES tell me it works only on veins with an active blood flow, so put away your "Mission: Impossible" 3D printers and molds--this tech requires the real thing.

The palm-scanning technology has already been seen built in to mice and full-size keyboards, but Fujitsu says the tech has now shrunk to the point where it can easily be integrated into laptops and other devices.

Laptops with PalmSecure are now available in Japan, and the company is currently "looking at" North America. I won't hold my breath, although if I did, it would make my veins even easier to read.… Read more

Magellan isn't afraid to get a little sweaty, as the GPS manufacturer is getting into the fitness tech game.

Known for its in-car navigation systems, today Magellan introduced its first pair of GPS fitness watches for runners, cyclers, swimmers, and triathletes. The Switch and Switch Up will be on display at CES 2012, with expected availability for spring 2012.

The Switch is designed primarily for runners, according to Magellan, and offers a 1.26-inch monochrome display, a high-sensitivity GPS receiver, and embedded ANT+ technology, so you can connect to third-party heart-rate monitors, foot pods, bike sensors, and so forth. … Read more

Body suit simulators are nothing new. Earlier this year the Kanagawa Institute of Technology in Japan unveiled Mommy Tummy 8.0, designed to help the partners of expecting moms--as well as teenagers thinking about getting it on--to understand the physical ramifications of, well, getting it on.

Now students at MIT's AgeLab are taking this empathy concept to another level with AGNES, the Age Gain Now Empathy System, a suit designed to help wearers understand the physical ramifications of neglecting our bodies for decades on end. (AGNES is meant to emulate a 75-year-old with arthritis and diabetes.)

The suit incorporates shoes that compromise one's sense of balance and shorten one's gait; knee and elbow braces that limit joint mobility; earplugs that tune out soft or high-pitched sounds; a helmet that compresses the spine; and gloves that reduce not only strength and mobility in one's hands and wrists but also tactile sensation.… Read more