The Jarvik Artificial Heart is a mechanical device designed to replace a damaged human heart. Its name is pronounced /ˈdʒɑrvɪk ɑrˈtɪfɪʃəl hɑrt/ with the stress on the first syllable of "Jarvik" and the second syllable of "artificial." The spelling of this word can be explained through its use of the American English pronunciation system, which is based on the International Phonetic Alphabet (IPA). By using phonetic transcription, the spelling of the word "Jarvik Artificial Heart" becomes clearer and more consistent with the way it is pronounced.
The Jarvik Artificial Heart refers to a sophisticated medical device created to replace the natural function of a human heart in patients suffering from end-stage heart failure. Designed by Dr. Robert Jarvik, the device aims to offer a temporary solution for patients awaiting a heart transplant or who are ineligible for a transplant due to various reasons.
The Jarvik Artificial Heart consists of two implantable pumps that are surgically attached to the patient's native heart. These pumps are connected to an external power source, which drives the pumping action, enabling blood circulation throughout the body. The device replicates the function of the natural heart by pumping blood in a continuous flow, ensuring adequate oxygenation and nutrient supply to vital organs.
The construction of the Jarvik Artificial Heart involves biocompatible materials, such as titanium and polyurethane, to minimize the risk of rejection or other adverse reactions within the patient's body. Extensive testing and refinement have resulted in improved durability, reliability, and reduced clotting risks associated with earlier versions of artificial hearts.
Although the Jarvik Artificial Heart is a remarkable technological advancement, it is typically considered a bridge to transplantation rather than a permanent solution. This is mainly due to factors such as the need for an external power source, the risk of infection, and associated health complications. Once a suitable donor heart becomes available, the recipient's transplant operation will involve removing the Jarvik Artificial Heart.
The development and use of the Jarvik Artificial Heart have contributed significantly to advancing the field of cardiac medicine, offering hope to patients with end-stage heart failure as they await a potentially life-saving heart transplant.