heart-lung machine
noun
: a mechanical pump that maintains circulation during heart surgery by shunting blood away from the heart, oxygenating it, and returning it to the body
Examples of heart-lung machine in a Sentence
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The operation was less radical than total heart replacement and was carried out without needing a heart-lung machine.
—
Scott Lafee, San Diego Union-Tribune, 25 Nov. 2025
This alternative type of cancer treatment uses a heart-lung machine to heat a patient's blood outside the body as a means of shrinking tumors.
—Khloe Quill, Fox News, 19 Feb. 2025
The procedure offers an alternative to connecting the patient to a heart-lung machine and repairing or replacing the mitral valve in open-heart surgery.
—Kff Health News, The Mercury News, 16 July 2024
Most viral pneumonia can only be treated with supportive care, such as providing oxygen; people with severe cases may require ventilators, heart-lung machines and other forms of mechanical ventilation, Offit says.
—Tara Haelle, Scientific American, 19 Dec. 2023
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Scott Lafee, San Diego Union-Tribune, 25 Nov. 2025
This alternative type of cancer treatment uses a heart-lung machine to heat a patient's blood outside the body as a means of shrinking tumors.
—Khloe Quill, Fox News, 19 Feb. 2025
The procedure offers an alternative to connecting the patient to a heart-lung machine and repairing or replacing the mitral valve in open-heart surgery.
—Kff Health News, The Mercury News, 16 July 2024
Most viral pneumonia can only be treated with supportive care, such as providing oxygen; people with severe cases may require ventilators, heart-lung machines and other forms of mechanical ventilation, Offit says.
—Tara Haelle, Scientific American, 19 Dec. 2023
See All Example Sentences for heart-lung machine
Cite this Entry
“Heart-lung machine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/heart-lung%20machine. Accessed 1 Dec. 2025.
Copy CitationMedical Definition
heart-lung machine
noun
heart-lung ma·chine
ˌhärt-ˈləŋ-mə-ˌshēn 
: a mechanical pump that maintains circulation during heart surgery by shunting blood away from the heart, oxygenating it, and returning it to the body
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