Key result
The Tyson-Bowman diaphragm pump was designed and operated to successfully duplicate right heart bypass for artificial circulation.
This early report describes the development and experimental use of the Tyson-Bowman diaphragm pump for artificial circulation during right heart bypass.
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Animal feasibility of diaphragm pump for right heart bypass does not support clinical adoption; extends early device development research.
IN THE past several years a number of investigators interested in intracardiac surgery have produced pumps to serve as mechanical hearts. Much of this work has been stimulated by the efforts of Gibbon,1Dennis and associates,2and others to produce an artificial heart-lung system and by the studies of Sewell and Glenn,3and others,4in which a pump is used to bypass parts of the heart. We became interested in this field in 1949, and thought that a small compact pump could be produced by using the diaphragm principle. This report describes the resulting pump and indicates how it operates when used to duplicate the right heart bypass operation described by Sewell and Glenn.3Additional experience with this pump when used to bypass the left heart is reported elsewhere.5 GENERAL REQUIREMENTS FOR A MECHANICAL HEART The mechanical heart used in these experiments was designed
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James L. Southworth (1953) studied Artificial circulation for intracardiac surgery. Tyson-Bowman diaphragm pump was evaluated. The Tyson-Bowman diaphragm pump was designed and operated to successfully duplicate right heart bypass for artificial circulation.
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