In Continuation to my last post (Technology Updates: Bionics Heart (Virtual heart) Part
II) about the Bionic heart here it s shown how can it be implemented and different elements of it s working
The Bionic Heart
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. There are areas in the heart called pacemakers that send electrical signals to the rest of the heart, setting the speed or pace of the heartbeat.
They help it speed up during exercise or hard work, and to slow down again during rest. If natural pacemakers are injured, a miniaturized medical device called a ‘cardiac can be implanted in the chest wall. pacemaker’ Pacing leads- Fixed-rate pacemakers produce constant electrical impulses at a rate preset by the healthcare provider. Demand-type pacemakers have a special component that allows them to monitor the heart and generate impulses only when necessary.
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They help it speed up during exercise or hard work, and to slow down again during rest. If natural pacemakers are injured, a miniaturized medical device called a ‘cardiac can be implanted in the chest wall. pacemaker’ Pacing leads- Fixed-rate pacemakers produce constant electrical impulses at a rate preset by the healthcare provider. Demand-type pacemakers have a special component that allows them to monitor the heart and generate impulses only when necessary.
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Porting valve - This valve opens and closes to let the hydraulic fluid flow from one side of the artificial heart to the other. When the fluid moves to the right, blood gets pumped to the lungs through an artificial ventricle. When the fluid moves to the left, blood gets
pumped to the rest of the body.
Wireless energy-transfer system - Also called the Trans-cutaneous Energy Transfer (TET), this system consists of two coils, one internal and one external, that transmit power via magnetic force from an external battery across the skin without piercing the surface. The internal coil receives the power and sends it to the internal battery and controller device.
Internal battery - A rechargeable battery is implanted inside the patient's abdomen. This gives a patient 30 to 40 minutes to perform certain activities, such as showering, while disconnected from the main battery pack.
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External battery - This battery is worn on a Velcro-belt pack around the patient's waist. Each rechargeable battery offers about four to five hours of power.
Controller - This small electronic device is implanted in the patient's abdominal wall. It monitors and controls the pumping speed of the heart.
Programmer- The programmer enables the physician to evaluate the pacemaker’s performance and change its setting non-invasively. The programming consol is made up of carefully tested, complex circuit boards that are bounded together in a sturdy unit. To facilitate programming, the software provides high speed processing and easy operation. At the touch of a single button, the unique automated follow-up feature delivers customized information on pacemaker function and cardiac activity for therapy that is specially tailored to each patient.
DRAWBACKS
There are few side effects or surgical complications associated with artificial pacemakers but, like any man made device, they are subject to failure. They do need to be checked regularly. All pacemakers are sensitive to electrical interference from microwaves and electrical generators and hence vary in degree, depending upon how well shielded they are.
CONCLUSION
Bionic heart has helped disabled persons to enjoy their life. Their application to military, medicine, business etc helped the human species to live an easier and simpler life. Certain these devices are life saving devices. Hopefully scientists will be able to overcome all the issues, making it possible to develop an immortal superhuman.
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