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).
Behind the ear. A behind-the-ear (BTE) hearing aid hooks over the top of your ear and rests behind the ear. A tube connects the hearing aid to a custom earpiece called an earmold that fits in your ear canal. This type is appropriate for people of all ages and those with almost any type of hearing loss.