Respiratory monitoring during gas delivery
First Claim
Patent Images
1. A respiratory therapy and monitoring method comprising:
- providing a first conduit having a proximal end, a distal end, and a first lumen defined, therethrough from the proximal end to the distal end;
delivering, via the first conduit, a flow of gas from a gas supply to an airway of a user over a plurality of respiratory cycles;
monitoring a gas flow characteristic using a pressure sensor, a flow sensor, or both operatively coupled to the airway of the user while the flow of gas is passing through the conduit;
accounting for an offset in the gas flow characteristic caused by the flow of gas; and
determining at least one respiratory variable of such a user based on the gas flow characteristic and the accounting for the offset.
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Abstract
A method and apparatus for monitoring a patient'"'"'s respiratory status during the delivery of gases, such as supplemental oxygen. In one embodiment, a conduit carries a continuous flow of gas to an airway of a patient over a plurality of respiratory cycles and a gas flow characteristic of the gas in the conduit is monitored using a pressure sensor, a flow sensor, or both. The gas flow characteristic is used to determine a respiratory variable for the patient.
216 Citations
22 Claims
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1. A respiratory therapy and monitoring method comprising:
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providing a first conduit having a proximal end, a distal end, and a first lumen defined, therethrough from the proximal end to the distal end;
delivering, via the first conduit, a flow of gas from a gas supply to an airway of a user over a plurality of respiratory cycles;
monitoring a gas flow characteristic using a pressure sensor, a flow sensor, or both operatively coupled to the airway of the user while the flow of gas is passing through the conduit;
accounting for an offset in the gas flow characteristic caused by the flow of gas; and
determining at least one respiratory variable of such a user based on the gas flow characteristic and the accounting for the offset. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A respiratory therapy and monitoring system comprising:
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a first conduit having a proximal end adapted to be coupled to a supply of gas, a distal end, and a first lumen defined, therethrough from the proximal end to the distal end;
a first sensor operatively coupled to the airway of the user while the flow of gas is passing through the first conduit, wherein the first sensor monitors a characteristic indicative of pressure or flow in the first conduit; and
processor adapted to (a) account for an offset in the characteristic caused by the flow of gas to the airway of the user, and (b) determine at least one respiratory variable of such a user based on the characteristic and the offset. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method of displaying a respiratory characteristic of a user, comprising:
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displaying a time varying respiratory characteristic over at least a portion of a user'"'"'s respiratory cycle during a current (n) respiratory cycle; and
displaying the time varying respiratory characteristic over at least a portion of such a user'"'"'s respiratory cycle during a prior respiratory cycle, and wherein the time varying respiratory characteristic during the current (n) respiratory cycle and the time varying respiratory characteristic during the prior respiratory cycle are displayed in a superimposed fashion. - View Dependent Claims (22)
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Specification