Cardiac monitoring providestimely intervention of doctors in case of critical situations. Earlier, electrodes were used to control the heart, however, with the invention of "electronic tattoos", it became possible to make this process more mobile and efficient.
The University of Texas has developed a device in the formelectronic tattoo, which allows simultaneous monitoring of cardiac activity using electrocardiography (ECG) and seismic cardiography (SCG). The ECG records electrical activity at each contraction of the heart muscles, and the SCG monitors the chest oscillations from each heart beat. Thus, the SCG increases the accuracy of the readings obtained using the cardiogram.
Texas scientists suggest constructiondual layer sensor. The first layer is designed to remove the ECG and is made of gold and polyethylene terephthalate (PET). The second layer is made of polyvinylidene fluoride (PVDF) piezoelectric material, which generates electricity during mechanical vibrations. This layer is designed to remove the SCG. Both layers are mounted on an elastic sheet of a transparent medical bandage 3M Tegaderm.
Attached to the heart of the device,placed on an elastic basis, does not cause any inconvenience to the patient. The devices under test are “tied” to the computer with wires. However, the developers' plans include the creation of autonomous mobile devices paired with a smartphone using wireless technologies. At this stage of development, an indisputable plus of the novelty is that it can be worn on the skin for several days without experiencing significant discomfort.