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
Recent Examples on the Web
The units are used in conjunction with a heart-lung machine, which takes over the function of the heart and lungs during heart surgery.
—
Judy L. Thomas, Kansas City Star, 10 Mar. 2026
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
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Judy L. Thomas, Kansas City Star, 10 Mar. 2026
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
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 14 Mar. 2026.
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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