Search Results For: john rogers

Algorithm-adjusted exoskeleton enables movement optimization, personalization

Juanjuan Zhang, Steven Collins and CMU colleagues have developed an algorithm that enables ankle exoskeletons to adapt to the wearer’s walk called “Human in the Loop Optimization.” In a recent study, by using indirect calorimetry to measure metabolic rates, torque was adjusted while users were walking, running, and carrying a load. At this stage, a […]

Sensor-embedded respiration, feeding tubes in the ICU

Art Medical‘s sensor-embedded feeding and respiratory  tubes provide continuous measurement of gastric reflux and, saliva. These secretions, currently measured manually in the ICU, can cause aspiration pneumonia and ventilator associated pneumonia, which can prolong hospital stays, or cause death.  Urine output is also measured, in an attempt to prevent kidney failure. The company’s digestive, respiratory, and […]

EEG detects infant pain

Caroline Hartley and Oxford colleagues studied 72 infants during painful medical procedures.  Using EEG, they found a signature change in brain activity about a half-second after a painful stimulus. They seek to understand its use in monitoring and managing infant pain, as well as  the use of EEG in adult pain treatment. EEG is more precise than current heart rate, […]

Graphene sensor detects asthma attacks early

Azam Gholizadeh, Clifford Weisel, and Rutgers colleagues have created a graphene sensor for early molecular diagnosis of asthma attacks.  The goal is the development of wearables that will alert users to take medicine, as well as determine appropriate dosages. Current non-invasive detection methods, such as spirometry, are limited in characterizing the nature and degree of […]

Earbud sensor reportedly measures blood pressure, dehydration

As health sensors become more discreet, and fused with commonly worn devices, Kyocera has integrated a tiny, optical sensor into its earbud.  The hybrid music/phone/health use wearable measures blood flow in hypodermal tissues using Laser Doppler velocimetry. It can monitor nerve and blood pressure, levels of dehydration, and possible signs of heat stroke.  Sleep monitoring can […]

VR studied for PTSD, phobia treatment

Emory’s Jessica Maples-Keller has published a study demonstrating the effectiveness of VR in treating PTSD, phobias, and other mental illnesses.  She describes the treatment as allowing “providers to create computer-generated environments in a controlled setting, which can be used to create a sense of presence and immersion in the feared environment for individuals suffering from anxiety disorders.” […]

Deep learning driven prosthetic hand + camera recognize, automate required grips

Ghazal Ghazai and Newcastle University colleagues have developed a deep learning driven prosthetic hand + camera system that allow wearers to reach for objects automatically.  Current prosthetic hands are controlled  via a user’s myoelectric signals, requiring learning, practice, concentration and time. A convolutional neural network was trained it with images of  500 graspable objects, and taught  to recognize […]