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).
Open Fit Hearing Aids. Open fit hearing aids do not completely fill your ear canal. Instead, an open fit device is usually a very small behind-the-ear hearing aid with a small tube or wire that connects to a speaker in the ear canal.ustom Fit Hearing Aids. Custom fit hearing aids are just that custom molded to fit inside your ear canal. They can be completely inside the ear canal, fit partly inside, fill the lower portion of the outer ear, or fill most of the bowl-shaped area of the outer ear.