Health, Medicine, & Biotechnology

Ultrasound Creates 3D Haptic Shapes

Touch feedback, known as haptics, has been used in entertainment, rehabilitation, and even surgical training. University of Bristol researchers, using ultrasound, have developed an invisible 3D haptic shape that can be seen and felt.Led by Dr Ben Long and colleagues Professor Sriram Subramanian, Sue Ann Seah, and Tom Carter from the University of Bristol’s Department of Computer Science, the research could change the way 3D shapes are used.  The new technology could enable surgeons to explore a CT scan by enabling them to feel a disease, such as a tumor, using haptic feedback.By focusing complex patterns of ultrasound, the air disturbances can be seen as floating 3D shapes. Visually, the researchers have demonstrated the ultrasound patterns by directing the device at a thin layer of oil so that the depressions in the surface can be seen as spots when lit by a lamp.The system generates an invisible three-dimensional shape that can be added to 3D displays to create an image that can be seen and felt. The research team have also shown that users can match a picture of a 3D shape to the shape created by the system. SourceAlso: Learn about an Ophthalmic Ultrasound System for Ocular Structures.

Posted in: News

Read More >>

NASA's Hot 100 Technologies: Health, Medicine & Biotechnology

Atomic Oxygen Texturing and Cleaning Atomic oxygen oxidizes and removes biologically active contaminants, and reduces the contaminant to an inactive ash. Thus, the contaminant is both sterile and biologically inactive. The resulting surface is entirely free of any bacteria, viruses, prions, cells, or any organic matter. Currently, 3/4 of orthopedic implants have measurable amounts of endotoxins. Atomic oxygen could totally eliminate these endotoxins, greatly reducing chances of post-operative inflammation.

Posted in: Articles, Techs for License

Read More >>

The Stealth E-Bike: Challenges in Developing the First Fully Integrated Drive System for E-Bikes

The idea of a bike with pedal assistance is very old, dating back to 1860, when pedal assistance was thought of as a steam machine that would give power to the back wheel of a bike. In 1895, the first direct-drive hub motor was developed, which, as a concept, still remains today. In 1897, the first idea for a mid-drive system was born, but wasn’t quite a finished idea. In 1898, the idea was developed of a direct-drive motor that is concentric with a shaft that powers a rotor atop the rear tire to make a friction drive. As decades went on, other concepts for e-bikes were developed, using drive systems only in the front wheel or the back wheel. FAZUA is launching the future of e-bikes in 2015 with what the company calls the mid-drive 2.0. It’s a mid-drive system with an integrated gear reduction that is smaller, lighter, and integrated in the bike so the e-bike actually still looks and feels like a bike – because it actually still is a bike.

Posted in: White Papers

Read More >>

Sensors Monitor Dangerous Hits on the Football Field

In football, a tackle can supply 100 Gs of force or more, well above the amount that can cause a concussion and more than 10 times the force of an F‑16 jet roll maneuver. University of Florida (UF) researchers are using the helmets of Gator football players to help measure the force of on‑field hits to better understand and prevent concussions, and treat them before they cause lasting damage.

Posted in: News, Patient Monitoring, Sensors, Monitoring

Read More >>

Detecting High Stress in Oral Interviews and Text Documents

Content of an interview or text is subjected to various levels of statistical analysis to determine if the person knows the truth and is communicating it. Ames Research Center, Moffett Field, California When a person is interviewed, some of the answers may be inaccurate, or even deceptive, because the person may have either incomplete information, is telling only part of the truth, or is fabricating a false answer, or a combination of all three. When the person is habitually making statements that are known to be false, or only partly true, emotional and/or intellectual conflicts often arise within them, and these conflicts may become manifest by inconsistencies in use of different parts of speech or in logical relationships between statements. These inconsistencies are more subtle than inconsistencies in factual statements, and identification of these inconsistencies is more difficult and less straightforward than identification of factual inconsistencies.

Posted in: Briefs, TSP, Electronics & Computers, Data Acquisition

Read More >>

Predicting Heart Age Using Electrocardiography

Lyndon B. Johnson Space Center, Houston, Texas Knowledge of a patient’s cardiac age, or “heart age,” could prove useful to both patients and physicians for encouraging lifestyle changes that are potentially beneficial for cardiovascular health. This may be particularly true for patients who exhibit symptoms, but who test negative for cardiac pathology.

Posted in: Briefs, TSP, Electronics & Computers, Data Acquisition

Read More >>

Prediction of Visual Acuity from Wavefront Aberrations

This automated vision test is accurate, simple, and fast. Ames Research Center, Moffett Field, California Visual acuity (clearness of vision) usually is measured by an eye doctor using an eye chart. It measures the smallest letters that can be reliably identified by the patient at a specified distance. The traditional test requires the patient to look and report which letters they see.

Posted in: Briefs, TSP

Read More >>

White Papers

Remediation and Prevention of Moisture in Electronics
Sponsored by multisorb technologies
Looking at Ceramic Carbides in a New Light
Sponsored by Goodfellow
The True Cost of Bearing Lubrication
Sponsored by igus
Advances in Laser Welding Systems and Technology for Medical Device Manufacturing
Sponsored by Miyachi Unitek
The Basics Of Pressure Regulators
Sponsored by Beswick
One Component Epoxies: Versatility and Convenience
Sponsored by master bond

White Papers Sponsored By: