Heart-lung machine

Heart-lung machine
A machine that does the work both of the heart (pump blood) and the lungs (oxygenate the blood). Used, for example, in open heart surgery. Blood returning to the heart is diverted through the machine before returning it to the arterial circulation. John H. Gibson invented the heart-lung machine which was first successfully used in open-heart surgery in 1953. Also called a pump-oxygenator.

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heart-lung ma·chine .härt-'ləŋ-mə-.shēn n 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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an apparatus for taking over temporarily the functions of both the heart and the lungs during heart surgery. It incorporates a pump, to maintain the circulation, and equipment to oxygenate the blood. Blood is taken from the body by tubes inserted into the superior and inferior venae cavae, and the oxygenated blood is returned under pressure into a large artery, such as the femoral artery. The surgeon is therefore able to undertake the repair or replacement of heart valves or perform other surgical operations involving the heart and great blood vessels.

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a combination blood pump (artificial heart) and blood oxygenator (artificial lung) used in cardiopulmonary bypass for cardiac surgery.

Medical dictionary. 2011.

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Look at other dictionaries:

  • heart-lung machine — [härt′luŋ′] n. a mechanical device that pumps and oxygenates blood: it is used during open heart surgery, lung surgery, etc. to divert the patient s blood around the heart and lungs …   English World dictionary

  • heart-lung machine — heart′ lung′ machine n. med a pumping device through which diverted blood is oxygenated and returned to the body during heart surgery, temporarily functioning for the heart and lungs • Etymology: 1955–60 …   From formal English to slang

  • heart-lung machine — noun a pump to maintain circulation during heart surgery; diverts blood from the heart and oxygenates it and then pumps it through the body • Hypernyms: ↑pump * * * ˌheart ˈlung machine 7 [heart lung machine heart lung machines] noun a machine… …   Useful english dictionary

  • heart-lung machine — UK / US noun [countable] Word forms heart lung machine : singular heart lung machine plural heart lung machines medical a machine used for making blood and oxygen flow around someone s body when they are having a medical operation on their heart …   English dictionary

  • heart-lung machine — heart lung ma,chine noun count a machine used for pumping blood and oxygen around someone s body when they are having a medical operation on their heart …   Usage of the words and phrases in modern English

  • heart-lung machine — heart lung ma.chine n a machine that pumps blood and oxygen around someone s body during a medical operation …   Dictionary of contemporary English

  • heart-lung machine — /hat ˈlʌŋ məʃin/ (say haht lung muhsheen) noun a machine used at operations to take over the action of the heart and lungs to allow surgery to be performed on them …  

  • heart-lung machine — /hahrt lung / a device through which blood is shunted temporarily for oxygenation during surgery, while the heart or a lung is being repaired. [1955 60] * * * …   Universalium

  • heart-lung machine — noun a machine that temporarily takes over the functions of the heart and lungs, especially during heart surgery …   English new terms dictionary

  • heart-lung machine — an apparatus for taking over temporarily the functions of both the heart and the lungs during heart surgery. It incorporates a pump, to maintain the circulation, and equipment to oxygenate the blood. Blood is taken from the body by tubes inserted …   The new mediacal dictionary

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