Patent ID: 7368006

Claim:
A deaeration device for deaerating water used during ultrasonic focusing tumour ablation treatment, wherein a tap water main inlet is connected to a water purifier and a vacuum pump separately, a common pipe for cold and heated water from the water purifier and a water heater is connected to a water tank via electromagnetic valves, the vacuum pump is connected to the top of the water tank via electromagnetic valves and a vacuum switching valve, there are content gauges, a thermometer, and vacuum gauges set on the water tank, and the bottom of the water tank is connected to an aqueous capsule via electromagnetic valves and a water pump, said deaeration device is characterized in that said vacuum pump is a water jet vacuum pump ( 32 ); said water tank is comprised of twin tanks: water tank A ( 10 ) and water tank B ( 18 ), and a water cycling mechanism with twin-tank alternating vacuum suctions is formed by said water jet vacuum pump ( 32 ) in connection with said water tank A ( 10 ) and water tank B ( 18 ) at their tops via a valve assembly composed of four constant-open electromagnetic valves ( 19 , 20 , 21 , 22 ); and two atomizing nozzles ( 14 ) are provided at the respective water inlets on the tops of said water tank A ( 10 ) and water tank B ( 18 ).