| http://www.w3.org/ns/prov#value | - The pump principally comprises a pump housing having an internally disposed pumping chamber of variable volume, a diaphragm assembly for varying the volume of the pumping chamber, and a motor-driven actuator for mechanically displacing the diaphragm assembly in a first pumping direction to decrease the volume of the pumping chamber to inflate the balloon, and in a second pumping direction to incre
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