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Assignees
Member
Telesair, Inc.Telesair, Inc. develops, engineers, and manufactures non-invasive respiratory care devices focused on high flow oxygen therapy for hospital and long-term care. Their technology integrates real-time sensor monitoring, automated alarm and safety systems, and user interface solutions. The company adheres to global regulatory standards, quality assurance, and infection control protocols to support safe, effective respiratory therapy for both adults and children.
Telesair, Inc. develops, engineers, and manufactures non-invasive respiratory care devices focused on high flow oxygen therapy for hospital and long-term care. Their technology integrates real-time sensor monitoring, automated alarm and safety systems, and user interface solutions. The company adheres to global regulatory standards, quality assurance, and infection control protocols to support safe, effective respiratory therapy for both adults and children.
Publication Number
US-12599733-B2
Publication Date
2026-04-14
Expiration Date
Abstract
A method for assisting a patient in weaning from a therapy, the method being executed by a controller, and the controller being configurable with different at least one weaning strategy. The method includes setting, based on at least one input by a user, a target weaning strategy among the at least one weaning strategy, where the at least one input corresponds to a clinical decision determined by the user.
Core Innovation
The disclosed subject matter relates to assisting a patient in weaning from a therapy by executing a method with a controller comprising a memory. The controller receives multiple weaning strategies before the therapy and stores them in the memory, and during the therapy receives user inputs corresponding to a clinical decision for selecting a target weaning strategy among the stored multiple weaning strategies.
The target weaning strategy is set based on a time interval of adjusting a flow rate and a FiO2 of a gas provided to the patient and an adjusting granularity for adjusting the flow rate and the FiO2. The controller then receives a physiological parameter of the patient transmitted by at least one measurement device associated with the patient and calculates a percentage that a value of the received physiological parameter deviates from a reference value comprised in the set target weaning strategy.
The controller determines whether a condition of the patient is stable when the percentage is not greater than a second preset value, and determines that the condition of the patient is not stable when the percentage is greater than the second preset value. Based on whether the condition is stable, the controller adjusts the flow rate and the FiO2 according to the time interval and adjusting granularity, outputs a weaning signal when the flow rate is less than 10 litre per minute or the FiO2 is less than 50%, and in a case that the condition is not stable further determines whether the respiratory rate is greater than a third preset value to output an alarm signal.
Claims Coverage
The provided independent claims are directed to a method, a controller, and a respiratory device for assisting patient weaning, with five inventive features covering strategy selection, stability determination, adjustment control, weaning signal output, and alarm signal output.
Selecting a target weaning strategy based on user inputs for adjusting time interval and adjusting granularity
Receiving during the therapy at least one input of a user corresponding to a clinical decision used for selecting a target weaning strategy among multiple weaning strategies, wherein the at least one input comprises a time interval of adjusting a flow rate and a FiO2 and an adjusting granularity for adjusting the flow rate and the FiO2, and setting the target weaning strategy based on the time interval and adjusting granularity.
Stability determination using percentage deviation of a physiological parameter from a reference value
Receiving a physiological parameter transmitted by at least one measurement device associated with the patient; calculating a percentage that a value of the received physiological parameter deviates from a reference value comprised in the set target weaning strategy; determining that a condition of the patient is stable when the percentage is not greater than a second preset value; and determining that the condition of the patient is not stable when the percentage is greater than the second preset value.
Adjusting flow rate and FiO2 according to stable vs not stable condition and preset strategy parameters
Adjusting, according to whether the condition of the patient is stable, the flow rate and the FiO2 of the gas provided to the patient, based on the time interval of adjusting the flow rate and the FiO2 and the adjusting granularity for adjusting the flow rate and the FiO2.
Weaning signal output based on flow rate and FiO2 thresholds
Outputting a weaning signal in a case that the flow rate of the gas provided to the patient is less than 10 litre per minute or the FiO2 of the gas provided to the patient is less than 50%, wherein the weaning signal is used to inform the user that the patient can be weaned from the therapy.
Alarm signal output based on respiratory rate critical state threshold
In a case that the condition of the patient is not stable, determining whether the respiratory rate is greater than a third preset value, wherein the third preset value is used to determine whether the patient is in a critical state, and outputting an alarm signal in a case that the respiratory rate is greater than the third preset value.
Across the independent claims, the key coverage centers on selecting a target weaning strategy using user inputs that specify time interval and adjusting granularity, calculating stability by comparing a physiological parameter percentage deviation against a reference within the selected strategy, adjusting flow rate and FiO2 based on stable/not stable determination, and generating a weaning signal and an alarm signal based on preset thresholds for flow rate/FiO2 and respiratory rate.
Stated Advantages
Reduced healthcare worker exposure/time.
Reduced errors.
Finer adjustments.
Timely feedback.
Reduced total weaning time and hospital stay.
Enabling long-term care/home use.
Documented Applications
Enabling long-term care/home use for weaning from a therapy.
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