SYSTEM AND METHOD FOR MONITORING COMPOSITION IN A SIDESTREAM SYSTEM USING A PUMP AND DETECTOR WITH CONTROL ELECTRONICS THAT ARE TIGHTLY INTEGRATED
First Claim
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1. A detector device configured to measure composition of a flow of breathable gas received from a respiratory circuit, the detector device comprising:
- a housing;
a flow path engaged with a portion of the housing for the flow of breathable gas having an inlet and an outlet;
a radiation source within the housing and configured to emit electromagnetic radiation into the flow path;
a sensor assembly within the housing and configured to receive electromagnetic radiation that has been emitted by the radiation source and has passed through the flow path, the sensor assembly being further configured to generate output signals conveying information related to one or more parameters of the received electromagnetic radiation;
a pump, at least a portion of which is within the housing, the pump comprising;
a pump motor; and
a pump actuator configured to be driven by the pump motor to draw the flow of breathable gas through the flow path; and
one or more processors housed within an individual compartment within the housing, the one or more processors being configured to execute modules, the modules comprising;
a source module configured to drive the radiation source;
a sensor module configured to read the output signals generated by the sensor assembly;
a pump actuation module configured to drive the pump motor; and
a pump reading module configured to obtain information related to one or more operating parameters of the pump.
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Abstract
A system and method are configured to monitor composition of a flow of breathable gas being provided to a subject. The monitoring is accomplished in a sidestream configuration in which control of a pump and a detector are implemented in a tightly integrated controller.
1 Citation
15 Claims
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1. A detector device configured to measure composition of a flow of breathable gas received from a respiratory circuit, the detector device comprising:
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a housing; a flow path engaged with a portion of the housing for the flow of breathable gas having an inlet and an outlet; a radiation source within the housing and configured to emit electromagnetic radiation into the flow path; a sensor assembly within the housing and configured to receive electromagnetic radiation that has been emitted by the radiation source and has passed through the flow path, the sensor assembly being further configured to generate output signals conveying information related to one or more parameters of the received electromagnetic radiation; a pump, at least a portion of which is within the housing, the pump comprising; a pump motor; and a pump actuator configured to be driven by the pump motor to draw the flow of breathable gas through the flow path; and one or more processors housed within an individual compartment within the housing, the one or more processors being configured to execute modules, the modules comprising; a source module configured to drive the radiation source; a sensor module configured to read the output signals generated by the sensor assembly; a pump actuation module configured to drive the pump motor; and a pump reading module configured to obtain information related to one or more operating parameters of the pump. - View Dependent Claims (2, 3, 5)
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4. The detector device of claim 4, wherein the common circuit board has a length of less than about 4.5 cm, and a width of less than about 2.5 cm.
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6. A method of measuring composition of a flow of breathable gas received from a respiratory circuit, the method comprising:
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emitting electromagnetic radiation from a radiation source into a flow path for the flow of breathable gas; receiving the emitted electromagnetic radiation after it has passed through the flow path; generating output signals from a sensor assembly that convey information related to one or more parameters of the received electromagnetic radiation; drawing the flow of breathable gas through the flow path with a pump that includes a pump motor and a pump actuator, wherein the radiation source, the sensor assembly, and at least a portion of the pump are housed in a common housing; and executing modules on one or more processors that are contained within a single compartment of the housing, the modules comprising; a source module configured to drive the radiation source; a sensor module configured to read the output signals generated by the sensor assembly; a pump actuation module configured to drive the pump motor; and a pump reading module configured to obtain information related to one or more operating parameters of the pump. - View Dependent Claims (7, 8, 9, 10)
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11. A detector device for measuring composition of a flow of breathable gas received from a respiratory circuit, the detector device comprising:
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means for emitting electromagnetic radiation into a flow path (28) for the flow of breathable gas; means for receiving the emitted electromagnetic radiation after it has passed through the flow path; means for generating output signals that convey information related to one or more parameters of the received electromagnetic radiation; means for drawing the flow of breathable gas through the flow path, the means for drawing comprising a pump motor and a pump actuator, wherein the means for emitting, the means for generating, the pump motor, and the pump actuator are housed in and/or carried by a common housing; and means for executing modules, the means for executing being contained within a single compartment of the housing, the modules comprising; a source module configured to drive the radiation source; a sensor module configured to read the output signals of the means for generating; a pump actuation module configured to drive the pump motor; and a pump reading module configured to obtain information related to one or more operating parameters of the pump. - View Dependent Claims (12, 13, 14, 15)
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Specification