SYSTEMS AND METHODS FOR MANAGING PRESSURE IN A BREATHING ASSISTANCE SYSTEM
First Claim
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1. A breathing assistance system for providing breathing assistance to a patient, comprising:
- a ventilation system for supplying a gas flow;
a conduit operatively coupled to the ventilation system; and
a pressure sensor configured to measure the pressure of the gas flow through the conduit, the pressure sensor including a structure configured to create a localized pressure drop in the gas flow proximate the pressure sensor structure.
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Abstract
A breathing assistance system for providing breathing assistance to a patient is provided. The breathing assistance system may include a ventilation system for supplying a gas flow, a conduit operatively coupled to the ventilation system, and a pressure sensor configured to measure the pressure of the gas flow through the conduit. The pressure sensor may include a structure configured to create a localized pressure drop in the gas flow proximate the pressure sensor structure.
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Citations
20 Claims
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1. A breathing assistance system for providing breathing assistance to a patient, comprising:
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a ventilation system for supplying a gas flow; a conduit operatively coupled to the ventilation system; and a pressure sensor configured to measure the pressure of the gas flow through the conduit, the pressure sensor including a structure configured to create a localized pressure drop in the gas flow proximate the pressure sensor structure. - View Dependent Claims (2, 3, 4, 5, 6, 8, 9)
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7. A breathing system according to claim I, wherein a portion of the pressure sensor structure extending into the conduit includes a substantially triangular or substantially T-shaped cross section.
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10. A pressure sensor for use in a breathing assistance system for providing breathing assistance to a patient, comprising:
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a pressure sensor structure extending at least partially into an interior of a conduit operatively coupled to a ventilation system configured to supply a gas flow to a patient; wherein the pressure sensor structure is configured to affect the gas flow in the conduit to create a localized pressure drop proximate the pressure sensor structure; and a gas inlet formed in the pressure sensor structure, the gas inlet configured to receive gas for pressure measurement. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A method for controlling pressure delivered to a patient of a breathing assistance system, comprising:
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determining a target pressure setting; controlling a gas delivery device to generate a gas flow to a patient, the gas flow based at least on the target pressure setting; receiving pressure measurements from a pressure sensor operatively coupled to a conduit coupled to the gas delivery device, the pressure sensor including a structure configured to create a localized pressure drop in the gas flow proximate the pressure sensor structure; and adjusting the gas delivery device based at least on the pressure measurements received from the pressure sensor. - View Dependent Claims (18, 19, 20)
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Specification