MODULAR FLOW CASSETTE
First Claim
Patent Images
1. A flow cassette comprising:
- a housing having an inlet and an outlet with a passage therebetween;
a temperature sensor disposed within the passage and configured to measure the temperature of a fluid flowing through the passage;
a flow rate sensor disposed within the passage and configured to measure a flow rate of the fluid flowing through the passage; and
a processor coupled to the temperature sensor and flow rate sensor, the processor configured to accept measurements of temperature and flow rate from the temperature sensor and flow rate sensor, respectively, and provide a compensated flow rate.
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Abstract
A flow cassette has a housing with an inlet and an outlet and a passage therebetween. The flow cassette also has a temperature sensor disposed within the passage and configured to measure the temperature of a fluid flowing through the passage, a flow rate sensor disposed within the passage and configured to measure a flow rate of the fluid flowing through the passage, and a processor coupled to the temperature sensor and flow rate sensor. The processor is configured to accept measurements of temperature and flow rate from the temperature sensor and flow rate sensor, respectively, and provide a compensated flow rate.
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Citations
22 Claims
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1. A flow cassette comprising:
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a housing having an inlet and an outlet with a passage therebetween; a temperature sensor disposed within the passage and configured to measure the temperature of a fluid flowing through the passage; a flow rate sensor disposed within the passage and configured to measure a flow rate of the fluid flowing through the passage; and a processor coupled to the temperature sensor and flow rate sensor, the processor configured to accept measurements of temperature and flow rate from the temperature sensor and flow rate sensor, respectively, and provide a compensated flow rate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of configuring a ventilator for a patient, the method comprising the step of:
installing a flow cassette into a ventilator, the flow cassette comprising a housing having an inlet and an outlet with a passage therebetween, a temperature sensor disposed within the passage and configured to measure the temperature of a fluid flowing through the passage, a flow rate sensor disposed within the passage and configured to measure a flow rate of the fluid flowing through the passage, and a processor coupled to the temperature sensor and flow rate sensor and configured to accept measurements of temperature and flow rate from the temperature sensor and flow rate sensor, respectively, and provide a compensated flow rate. - View Dependent Claims (11, 12, 13, 14)
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15. A ventilator comprising:
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an output flow channel configured to mate with a supply limb; an input flow channel configured to accept a gas from a source; and a flow cassette comprising; a housing having an inlet coupled to the input flow channel, an outlet coupled to the output flow channel, and a passage between the inlet and the outlet; a temperature sensor disposed within the passage and configured to measure the temperature of a fluid flowing through the passage; a flow rate sensor disposed within the passage and configured to measure a flow rate of the fluid flowing through the passage; and a flow cassette processor coupled to the temperature sensor and flow rate sensor, the processor configured to accept measurements of temperature and flow rate from the temperature sensor and flow rate sensor, respectively, and provide a compensated flow rate. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
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Specification