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It consists of a set of small ultrasound transducers that are welded to the patch by a conductive ink. The blood pressure sensor sits near the center of the patch. “Theoretically, we can detect all of them at the same time, but that would require a different sensor design,” said Yin, who is also a Ph.D. The patch is capable of measuring three parameters at once, one from each sensor: blood pressure, glucose, and either lactate, alcohol or caffeine. It is equipped with a blood pressure sensor and two chemical sensors-one that measures levels of lactate (a biomarker of physical exertion), caffeine and alcohol in sweat, and another that measures glucose levels in interstitial fluid. The patch is a thin sheet of stretchy polymers that can conform to the skin. Integrating them all in one wearable patch allows us to stitch those different pictures together to get a more comprehensive overview of what’s going on in our bodies,” said Xu, who is also a co-corresponding author of the study. “Each sensor provides a separate picture of a physical or chemical change. By joining forces, the researchers created the first flexible, stretchable wearable device that combines chemical sensing (glucose, lactate, alcohol and caffeine) with blood pressure monitoring.
#HEART MONITOR PATCH SKIN#
And in the lab of UC San Diego nanoengineering professor Sheng Xu, researchers have been developing soft, stretchy electronic skin patches that can monitor blood pressure deep inside the body. Wang’s lab has been developing wearables capable of monitoring multiple signals simultaneously-chemical, physical and electrophysiological-in the body. The new patch is a product of two pioneering efforts in the UC San Diego Center for Wearable Sensors, for which Wang serves as director. “We can collect so much information with this one wearable and do so in a non-invasive way, without causing discomfort or interruptions to daily activity.” “The novelty here is that we take completely different sensors and merge them together on a single small platform as small as a stamp,” said Joseph Wang, a professor of nanoengineering at UC San Diego and co-corresponding author of the study. These procedures currently involve inserting catheters deep inside patients’ arteries and tethering patients to multiple hospital monitors. One soft skin patch that can do it all would also offer a convenient alternative for patients in intensive care units, including infants in the NICU, who need continuous monitoring of blood pressure and other vital signs.
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It could also be used to detect the onset of sepsis, which is characterized by a sudden drop in blood pressure accompanied by a rapid rise in lactate level. Such a device could benefit individuals managing high blood pressure and diabetes-individuals who are also at high risk of becoming seriously ill with COVID-19. “It would also serve as a great tool for remote patient monitoring, especially during the COVID-19 pandemic when people are minimizing in-person visits to the clinic.”
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student at UC San Diego and co-first author of the study published Feb. “This type of wearable would be very helpful for people with underlying medical conditions to monitor their own health on a regular basis,” said Lu Yin, a nanoengineering Ph.D. It is the first wearable device that monitors cardiovascular signals and multiple biochemical levels in the human body at the same time. This soft, stretchy patch can monitor the wearer’s blood pressure and biochemical levels at the same time.Įngineers at the University of California San Diego have developed a soft, stretchy skin patch that can be worn on the neck to continuously track blood pressure and heart rate while measuring the wearer’s levels of glucose as well as lactate, alcohol or caffeine.