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).
Hearing aids. Hearing aids help some deaf people hear, but they don't work for everyone.You can take off the hearing aid whenever you want. You can get a new ear mold (so it fits) or, if you need to, even a whole new aid. Some deaf people with hearing aids can speak well.That is because they can hear some speech sounds and practice speaking clearly. A hearing aid will make the sound of eeee when the ear mold doesn't fit in the ear tightly. deaf person may use hearing aids to hear the TV, when someone calls their name, to listen to music, and hear environmental sounds. Suppose a deaf person listens to music when using a hearing aid. First, the sound goes to the hearing aid and is amplified. Second, sound goes through the ear to the eardrum.