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).
1 There are several different types of hearing aids. 2  Behind-the-ear (BTE) hearing aids cost between $450 and $5,600. 3  Economy Hearing Products offers a very basic BTE hearing aid for about $630. In-the-canal (ITC) hearing aids are much smaller devices that fit entirely within the ear, but not entirely within the ear canal. 2  A set costs between $300 and $5,600. 3  The MicroPod 32 automatically adjusts to different hearing environments and retails for about $1,000.