Results 211 to 220 of about 171,812 (237)

A Disposable Heart-Lung Machine

ASAIO Journal, 1993
A small wave propagation pump (WPP) was incorporated into oxygenators to create a disposable heart-lung machine. The WPP provides undirectional micropulsatile laminar flow of 8 L/min against 800 mmHg. The smaller WPP can generate 4 L/min against 400 mmHg (cardioplegia), or reversed, and can create up to 150 mmHg negative pressure for suction.
Bruce Balentine, Lawrence Barker, Steven J. Phillips, Ken Thornton, Robert H. Zeff   +4 more
openaire   +3 more sources

Safety of Heart-Lung Machines during Prolonged Standby

Infection, 2003
Coronary artery bypass surgery is increasingly performed without an extra-corporeal circuit. A heart-lung machine (HLM) is kept on standby for safety reasons, but rarely used. The tubes of the machines are currently discarded after every operation. Costs and waste would be avoided if HLMs could stay on standby for longer periods of time.
H.-R. Zerkowski, B. F. Schnider, A. Witschi, F. Bernet, Andreas F. Widmer, Wehrle J   +5 more
openaire   +3 more sources

John Gibbon and His Heart-Lung Machine

The Annals of Thoracic Surgery, 1993
On October 3,1930, a young resident named John Gibbon spent all night monitoring the vital signs of a woman who had suffered a massive pulmonary embolus. At 8 the next morning her condition worsened. Dr Edward Churchill opened her chest and, within less than seven minutes, removed several large pulmonary emboli.
openaire   +4 more sources

A medical training system for the operation of Heart-lung machine

2015 12th International Conference on Fuzzy Systems and Knowledge Discovery (FSKD), 2015
It has been a strong tendency to use information communication technology (ICT) to construct various education/training systems to help students or other learners to master necessary skills more ea...
Ren Kanehira, Kazinori Kawaguchi, Hideo Fujimoto, Hideo Hori   +3 more
openaire   +3 more sources

Hydrodynamic indexes of polymer tubes of heart-lung machines

Biomedical Engineering, 1971
1. The data obtained can be used when selecting tubes in relation to their purpose (inlet, pump, or outlet), especially when the temperature conditions of perfusion are to be varied.
L. N. Storozhenko, A. A. Pisarevskii, Yu. V. Tishechkin   +2 more
openaire   +3 more sources

FIRST EXPERIENCES WITH A MINIATURIZED HEART-LUNG-MACHlNE

Biomedizinische Technik/Biomedical Engineering, 2002
Conventional heart-lung-machines (HLM) used for many cardiosurgical procedures lead to an impaired function of nearly all organs. This deleterious effect may be reduced by miniaturized HLMs. Therefore we report on our first experiences in 9 patients (4 women, 5 men) undergoing beating heart coronary artery bypass grafting from 10/01 to 04/02 in our ...
S. Christiansen, Helmut Reul, Michael Schmid, C. Göbel, M. Aranda-Carrero, Rüdiger Autschbach   +5 more
openaire   +3 more sources

A Mechanical Heart-Lung Machine for Use in Man [PDF]

, 1985
In the past, heart surgery — open or closed — lagged far behind surgical advances in other fields. This was partly due to the long-held belief that the heart was the seat of the soul; even today it retains something of a magic aura. Moreover, the surgeons were also restrained by the threats and warnings of their colleagues.
openaire   +1 more source

ECMO Therapy and the Heart-Lung Machine

2018
Chapter 10 describes the setup and functions of extracorporeal membrane oxygenation (ECMO) as compared to the heart-lung machine (HLM). Based on an underlying technical understanding, the variables that control mechanical organ replacement are discussed.
openaire   +2 more sources

Retrospective on Dr Gibbon and his heart-lung machine

The Annals of Thoracic Surgery, 2003
May 6, 1953 could very well be one of the most significant dates in medical history. On this day 50 years ago, Dr John H. Gibbon, Jr, performed surgery at Philadelphia’s Jefferson Hospital on a young woman in what was the world’s first successful open heart operation using a mechanical heart-lung device on a human being.
openaire   +3 more sources

Intracardiac Surgery Using the Kay-Anderson Heart Lung Machine

Diseases of the Chest, 1959
In 1951, Miller, Gibbon, and Gibbon,’ described a stationary screen oxygenator. Following this, Kay and Gaertner2 described a simplified stationary screen oxygenator. During the past year and a half, the stationary screen oxygenator has been further modified and simplified by Kay and Anderson.3 The changes are as follows: First, the apparatus is made ...
Jerome Harold Kay, Edward N. Snyder, Oscar Magidson, Reuben R. Lewis, John E. Meihaus, Robert M. Anderson   +5 more
openaire   +3 more sources