Bionic is a term which refers to the flow of concepts from biology to engineering and vice versa. It is the
application of biological methods and system found in nature to the study and design of engineering
systems and modern technology. Bionic was coined by Jack E. Steele in 1958, originating from the
technical term bion, meaning ‘unit of life’ and the suffix ic, meaning ‘like’, hence ‘like life’ is the
meaning of the term bionic. The main aim of bionic technology is to help people with disabilities or augment their existing abilities. Some of the important developments under way are cochlear implants, eyes that transmit electronic signals to
the brain, artificial limbs that use signals from a person’s own muscles, artificial cardiac pacemakers, skin replacement with tissue engineering and microchip implants for the brain. It is the way of replacing the damaged or missing part with natural or synthetic substitutes. The bionic heart weighs about 2 pounds and is made of titanium and plastic. It can pump more than 10 liters of blood per minute, which is enough for everyday stuff like walking. This works in a different way from a real heart. A real heart can pump blood to the lungs and the body on each beat. It sends blood to the lungs and then to the body every other beat, instead of both at the same time. This helps to keep the artificial heart small, and there is still plenty of blood flow for normal life.
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Heart Sounds: The heart produces four sounds. Out of these, the first two sounds can be easily detected
using a stethoscope. The third and fourth sounds are difficult to detect clinically but can be heard found
graphic records. The first and second sounds are close to each other and the second sound is followed
by a pause. Hence the sequence is: first sound, second sound pause; first sound, second sound
pause and so on. The heart sounds are caused due to vibration of levels of valves during closure; and due
to turbulent flow of blood due to high pressure changes.An electrical system of the heart that controls how fast it beats. Human heart beats at the rate of about 72 per minute, the range being 70-80 per minute in adult males. The heart rate is slightly higher in adults females. It is highest in new born an gradually decreases until teenage; but in old age it again slightly increases. Considerable defects: Due to the over-activity in the parasympathetic nervous system or decrease in the sympathetic nervous system, the pace or speed of the heartbeat decreases. This state of decreases in the pulse rate of heart is termed as ‘bradycardia’. Bionic heart is designed with a view to command this disease.
This is some basic about human heart in my next post i will continue the topic how we can implement a bionic heart and how it will look like.
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