Health care technology company Wearoptimo Ltd. developed a next-generation microwearable sensor that accurately detects hydration levels, outperforming the needle-based gold standard.

The U.S. FDA’s latest draft guidance on pulse oximeters drew comment from the International Standards Organization and the International Electrotechnical Commission, which are making the case that in addition to differences in pigmentation, the pulsatility of the tissue in contact with the device is also a factor in device performance.

Researchers from The George Washington University and Northwestern University filed for protection of a bioresorbable, transparent, microelectrode array (MEA) technology that they believe offers unique advantages.

Dexcom Inc. put real money behind expanding its integration efforts, with a $75 million investment in the $200 million series D for Ōura Health Oy, the maker of the Ōura smart ring. Ōura and Dexcom also provided details on a strategic partnership that integrates data from Dexcom’s continuous glucose monitors with vital sign, sleep, stress, heart health and activity data from the Ōura ring.

U.K. researchers at Nottingham Trent University, the University of Southampton and University Hospital Southampton and product development company Zelemiq Ltd. developed a wearable sensor that accurately monitors and detects changes in people’s breathing without requiring direct contact with the skin.

Europlaz Technologies Ltd. has developed a new neonatal flow sensor that could help improve neonatal care and save the lives of babies born prematurely. The company created an integrated ‘sidestream’ carbon dioxide (CO2) sampling port, which when added to the side of its existing neonatal flow sensor will enable clinicians to monitor CO2 being exhaled from the baby’s lungs to better inform care.

Researchers developed a novel electrochemical biosensor technology capable of assessing symmetric dimethylarginine to detect early kidney disease, which could be adapted to detect other biomarkers for conditions like cancer.

Researchers from North Carolina State University filed for protection of miniaturized, wireless, wound-monitoring sensors that may be incorporated into swabs or wound dressings for real-time, accurate assessment of wound status.

Smartcardia SA received U.S. FDA clearance for mobile outpatient cardiac telemetry for its seven-lead live ECG monitoring patch and cloud platform. With the approval, the solution can now be used for remote live monitoring of a patient’s ECG and immediately notify clinicians in cases of arrhythmias.