Intraocular pressure is usually measured by applying a force on the cornea using a tonometer. Although sufficiently accurate, tonometers are only used in ophthalmologist offices and so don’t measure intra-day pressures. They also fail with people post cataract surgery that have a thicker cornea. Researchers at University of Arizona have developed a new device that measures intraocular pressure through the eyelid.
From the University of Arizona College of Engineering:
The self-test instrument has been designed in Eniko Enikov’s lab at the UA College of Engineering. Gone are the eye drops and need for a sterilized sensor. In their place is an easy-to-use probe that gently rubs the eyelid and can be used at home.
“You simply close your eye and rub the eyelid like you might casually rub your eye,” said Enikov, a professor of aerospace and mechanical engineering. “The instrument detects the stiffness and, therefore, infers the intraocular pressure.” Enikov also heads the Advanced Micro and Nanosystems Laboratory.
While the probe is simple to use, the technology behind it is complex, involving a system of micro-force sensors, specially designed microchips, and math-based procedures programmed into its memory.
Dr. Charles Limb is an otolaryngologist, and he’s also on the faculty at the Peabody Conservatory of Music. Wanting to study creativity on the neurological level, he used fMRI to scan the brains of musicians while improvising along with them. Here he describes the experiment, including the building of an MRI-compatible electronic keyboard:
While Braille can give the blind the ability to read, much of the text one encounters is not available in Braille (and our increasing dependence on touch-screen smartphones isn’t helping.) Two students at the University of Washington hope to solve this problem with their concept device, which they have termed the “Thimble.” The Thimble contains a fingertip camera and an electro-tactile grid which can read text and convert it to touch-sensitive Braille. The device can also interface with a user’s smartphone via Bluetooth for reading online content.
GENTAG, Inc. has announced a new diagnostic platform which uses near field communication (NFC) technology to transmit test results from a disposable test strip to a patient’s cellphone. Once results have been sent to a phone, they can then be uploaded to internet-connected EMR systems. The company claims their platform can test for pregnancy, HIV/AIDS, pathogens, and a number of different cancers, and monitor glucose, fever, as well as deliver drugs.
From the press release:
GENTAG started with well-established immunoassay technology and made it wireless and compatible with Near Field Communication (NFC) technology, which enables consumers to use their cell phones as diagnostic tools to instantly test for pathogens, allergens or common medical conditions at any time, no matter where they are.
NFC is currently being integrated into all major cell phone brands, and GENTAG is working with major OEMs [original equipment manufacturers] worldwide to promote the uses of its disposable wireless sensor platform for consumer markets.
Miguel Bruns Alonso, a graduate student at Delft University of Technology in The Netherlands, has developed a pen that detects how much twitching and twirling it’s being put through.
People under stress tend to move and shake a pen more than someone who is calm. In order to try to get a therapeutic effect out of the pen, Bruns built in counter motion feedback that makes the pen a bit more difficult to move around. Though initial experiments have shown a marginal benefit, further studies and development may prove the benefit of the technology. From TU Delft:
Bruns, who studies industrial design, carried out various experiments during the course of his research, which showed that people tend to play with their pens in their hands when they are tense. It also seems that when they are encouraged to check these nervous movements, or make more gentle movements, it is possible to gain more control over a situation. “Sensors in a pen could provide an unobtrusive way of measuring stress levels. Giving users the right feedback could then help them deal with their stress in a constructive way,” says Bruns.Read more »
*This blog post was originally published at Medgadget*
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Intraocular pressure is usually measured by applying a force on the cornea using a tonometer. Although sufficiently accurate, tonometers are only used in ophthalmologist offices and so don’t measure intra-day pressures. They also fail with people post cataract surgery that have a thicker cornea. Researchers at University of Arizona have developed a new device that measures intraocular pressure through the eyelid.
Miguel Bruns Alonso, a graduate student at Delft University of Technology in The Netherlands, has developed a pen that detects how much twitching and twirling it’s being put through.
