Quick Answer. Cardiotonic drugs are substances that increase the contracting mechanism within the heart, thereby causing more blood to be pumped throughout the circulatory system. These drugs usually affect intracellular calcium levels in the heart muscle to achieve the desired increase in muscle action.
Miniaturized hearing aids that will fit into the ear canal. Miniaturization tech could also be used to monitor pulse, blood-pressure, glucose, ECG via wireless, be used in implants, pacemakers. February 17, 2014. Fraunhofer researchers pack a total of 19 hearing-aid components (left) into their new microsystem (right).
Today's hearing aids are smaller and more sophisticated than they used to be. There are dozens of styles from which to choose, from behind-the-ear (BTE) models to instruments about the size of a pearl, called completely-in-the-canal (CIC) hearing aids. A CIC instrument hides within your ear canal, totally out of sight. Your perfect style depends on your lifestyle, listening preferences, and more.