Surgery – Respiratory method or device – Means for supplying respiratory gas under positive pressure
Reexamination Certificate
2005-01-11
2005-01-11
Bennett, Henry (Department: 3743)
Surgery
Respiratory method or device
Means for supplying respiratory gas under positive pressure
C128S204230, C128S207140
Reexamination Certificate
active
06840241
ABSTRACT:
An apparatus for determination of a recruitable volume in a lung has a control system connectable to a pneumatic unit and to a measurement system and operable to, at a first point in time, regulate the pneumatic unit to generate a first test breath having predetermined parameters with respect to flow and/or pressure of the gas flow, register volume and pressure in the lung during the first test breath, measured by the measurement system. The control system is at a operable second point in time, to regulate the pneumatic unit to generate a second test breath identical to the first test breath, register volume and pressure in the lung during the second test breath, measured by the measurement system. The control system compares the registered volume and pressure for the first test breath and the second test breath, and determines a recruitable volume based on the comparison.
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Bennett Henry
Maquet Critical Care AB
Ragonese Andrea M.
Schiff & Hardin LLP
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