Copy of a Dale-Schuster pump, Europe, undated
The Dale-Schuster pump was used to pump blood within an artificial circuit outside the body of an animal. It is a double perfusion pump, developed in 1928, and takes its name from researchers Henry Dale (1875-1968) and Edgar Hermann Joseph Schuster (1899-1969). This machine follows the same principle that forms the basis of a modern heart and lung machine. The pump also has a spirometer to measure the volume of air in the lungs, while the kymograph is used to measure the pressure of blood. Dale and Schuster preferred to use the lungs to oxygenate the blood in the circuit as they believed it to be more effective than an artificial oxygenator attached to an oxygen gas bottle.
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Glossary: perfusion pump
used for artifical perfusion