Spontaneous Breathing Trial Manager
First Claim
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1. A method for managing a spontaneous breathing trial in a medical ventilator, comprising:
- initiating a spontaneous breathing trial for a patient being ventilated on a medical ventilator;
monitoring a plurality of sensors to obtain a plurality of sensor measurements during the spontaneous breathing trial;
determining whether at least one of the plurality of sensor measurements is outside of a desired range for a predetermined amount of time;
determining whether a RSBI calculation is outside of a desired range for a predetermined amount of time;
ending the spontaneous breathing trial based on at least one of a determination that at least one of the plurality of sensor measurements is outside of the desired range for the predetermined amount of time, the RSBI calculation is outside of the desired range for the predetermined amount of time, an inputted user command, and expiration of a spontaneous breathing trial period;
displaying at least one of the plurality of sensor measurements as a function of time for the spontaneous breathing trial; and
displaying a basis for the step of ending the spontaneous breathing trial for the patient being ventilated on the medical ventilator.
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Abstract
This disclosure describes systems and methods for conducting and terminating spontaneous breathing trials on patients receiving mechanical ventilation. The disclosure describes a novel spontaneous breathing trial manager for a medical ventilator with rapid initiation and continuous monitoring of a patient'"'"'s tolerance of the spontaneous breathing trial and displaying of that tolerance as a function of time, which provides for bedside adjustment of the spontaneous breathing trial parameters and automatic termination of a spontaneous breathing trial based on a time interval expiration or poor patient tolerance of the SBT.
245 Citations
20 Claims
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1. A method for managing a spontaneous breathing trial in a medical ventilator, comprising:
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initiating a spontaneous breathing trial for a patient being ventilated on a medical ventilator; monitoring a plurality of sensors to obtain a plurality of sensor measurements during the spontaneous breathing trial; determining whether at least one of the plurality of sensor measurements is outside of a desired range for a predetermined amount of time; determining whether a RSBI calculation is outside of a desired range for a predetermined amount of time; ending the spontaneous breathing trial based on at least one of a determination that at least one of the plurality of sensor measurements is outside of the desired range for the predetermined amount of time, the RSBI calculation is outside of the desired range for the predetermined amount of time, an inputted user command, and expiration of a spontaneous breathing trial period; displaying at least one of the plurality of sensor measurements as a function of time for the spontaneous breathing trial; and displaying a basis for the step of ending the spontaneous breathing trial for the patient being ventilated on the medical ventilator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A medical ventilator system, comprising:
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a processor; a gas regulator controlled by the processor, the gas regulator adapted to regulate a flow of gas from a gas supply to a patient via a patient circuit; a breath frequency sensor controlled by the processor, the breath frequency sensor is adapted to measure breath frequency of the patient; a spontaneous tidal volume sensor controlled by the processor, the spontaneous tidal volume sensor is adapted to measure spontaneous tidal volume of the patient; a spontaneous exhalation volume sensor controlled by the processor, the spontaneous exhalation volume sensor is adapted to measure spontaneous exhalation volume of the patient; a SpO2 sensor controlled by the processor, the SpO2 sensor is adapted to measure blood oxygen saturation level of the patient; a heart rate sensor controlled by the processor, the heart rate sensor is adapted to measure heart rate of the patient; a spontaneous breathing trial manager in communication with the processor, the breath frequency sensor, the spontaneous tidal volume sensor, the spontaneous exhalation volume sensor, the SpO2 sensor, and the heart rate sensor, the spontaneous breathing trial manager comprising a threshold monitor module, and a ventilation module; a user interface in communication with the processor and the spontaneous breathing trial manager; and a display module controlled by the processor, the display module adapted to display a RSBI and at least one of heart rate, blood oxygen saturation level, spontaneous tidal volume, and spontaneous exhalation volume of the patient as a function of time for a spontaneous breathing trial. - View Dependent Claims (15, 16, 17, 18, 19)
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20. A pressure support system comprising:
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a processor; a pressure generating system adapted to generate a flow of breathing gas controlled by the processor; a ventilation system including a patient circuit controlled by the processor; a breath frequency sensor controlled by the processor, the breath frequency sensor is adapted to measure the breath frequency of the patient; a spontaneous tidal volume sensor controlled by the processor, the spontaneous tidal volume sensor is adapted to measure spontaneous tidal volume of the patient; a spontaneous exhalation volume sensor controlled by the processor, the spontaneous exhalation volume sensor is adapted to measure spontaneous exhalation volume of the patient; a SpO2 sensor controlled by the processor, the SpO2 sensor is adapted to measure blood oxygen saturation level of the patient; a heart rate sensor controlled by the processor, the heart rate sensor is adapted to measure heart rate of the patient; a spontaneous breathing trial manager in communication with the processor, the breath frequency sensor, the spontaneous tidal volume sensor, the spontaneous exhalation volume sensor, the SpO2 sensor, and the heart rate sensor, the spontaneous breathing trial manager comprising a threshold monitor module, and a ventilation module; a user interface in communication with the processor and the spontaneous breathing trial manager; and a display module controlled by the processor, the display module adapted to display heart rate, RSBI, blood oxygen saturation level, spontaneous tidal volume, and spontaneous exhalation volume of the patient as a function of time for a spontaneous breathing trial.
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Specification