Surgery – Respiratory method or device – Means for supplying respiratory gas under positive pressure
Reexamination Certificate
2006-03-28
2006-03-28
Bennett, Henry (Department: 3743)
Surgery
Respiratory method or device
Means for supplying respiratory gas under positive pressure
C128S204180
Reexamination Certificate
active
07017575
ABSTRACT:
An oxygen enriching apparatus which can supply oxygen or oxygen-enriched gas to a user at proper timings, as well as a controller and recording medium therefore. In step100, a signal from a pressure sensor53is input. In subsequent step110, on the basis of the signal output from the pressure sensor53, a judgment is made as to whether the state of inhalation can be detected. When the result of judgment is “Yes,” this means that an anomalous state exists. In this case, the processing proceeds to step120.When the result of judgment is “No,” this means that the patient and the apparatus are normal. In this case, the present processing is suspended. When start of inhalation cannot be detected over, for example, a period of 10 seconds or more, an anomalous state is judged to have arisen. In step120, because of the anomalous state having arisen, the electromagnetic valve47is driven to open the supply passage29so as to supply oxygen-enriched gas over a period of about 4 seconds. Subsequently, the present processing is suspended.
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Akiyama Junichi
Yagi Hideaki
Green Dinnatia Doster
NGK Spark Plug Co. Ltd.
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