Esophageal pressure clinical decision support system
Inventors
Assignees
Interested in licensing this patent?
MTEC can help explore whether this patent might be available for licensing for your application.
Publication Number
US-12133954-B2
Publication Date
2024-11-05
Expiration Date
Abstract
A novel clinical decision support system (CDS) helps the clinician set up, maintain, and interpret an esophageal pressure measurement. The esophageal pressure CDS (Pes CDS) would remind the clinician to do an occlusion test whenever the balloon is first inserted or changes dramatically. It could monitor the occlusion test and provide feedback on the performance and success of the occlusion test. Changes in the patient or monitored data can be tracked by looking for changes in the balloon baseline pressure, changes in the amplitude of the pressure waveform, or changes in the pattern of the Pes waveform. Having information from the ventilator will further increase the ability of the system to determine when Pes is changing unexpectedly.
Core Innovation
The invention provides a system to improve the operation of a ventilator by electronically accessing measurement data during regular operation from sensors that provide esophageal pressure data, airway pressure data, and airway flow data. A processor periodically automatically compares the esophageal pressure data, which is difficult to interpret by a user, with changes to both the airway pressure data and the air flow data to determine an accuracy of the esophageal pressure data. The processor sends to a display an automatic accuracy indicator or a status indicator to indicate reliability and improve use of the ventilator.
The system uses the periodic accuracy comparison during regular ventilator operation to generate display guidance beyond a simple esophageal pressure readout. The invention includes an esophageal sensor placement and setup improvement workflow in which display status can indicate that an accuracy-related parameter is in or out of range, that an esophageal sensor needs adjustment, or combinations thereof. It further supports determining whether an esophageal pressure test is successful based on derived pressure changes and ratios and can send a direction to relocate the esophageal sensor.
In addition, the invention improves the placement and reliability of an esophageal sensor by incorporating breathing and cardiac components from the esophageal pressure data for comparison with airway pressure data and airway flow data. The processor can periodically access a measurement of a breathing component during regular operation, a cardiac component, or both, and automatically compare the esophageal pressure data with changes to both airway pressure and air flow to determine an accuracy of the esophageal sensor or an adjustment to the esophageal sensor. The processor sends to a display an accuracy indicator of the esophageal sensor or an indication that the esophageal sensor requires adjustment.
Claims Coverage
Three independent claims are identified. Each centers on periodic automatic comparison of esophageal pressure data with changes to airway pressure and air flow during regular ventilator operation, coupled with display of an accuracy, reliability, or sensor-adjustment indicator.
Automatic periodic accuracy comparison and display indicator
A processor periodically automatically compares esophageal pressure data with changes to both airway pressure data and air flow data to determine an accuracy of the esophageal pressure data during regular operation, and sends to a display an automatic accuracy indicator to indicate a reliability of the esophageal pressure data.
Status indicator for reliability, in-range/out-of-range, and sensor adjustment needs
A processor periodically automatically compares the esophageal pressure data with changes to both the airway pressure data and the air flow data to determine an accuracy of the esophageal pressure data and sends to a display a status indicator to indicate one of that the accuracy is either reliable or unreliable, that a parameter of interest related to the esophageal pressure is in or out of range, that an esophageal sensor needs adjustment, or a combination thereof.
Periodic comparison using breathing and cardiac components to determine sensor accuracy or adjustment
A processor periodically accesses a measurement of a breathing component during regular operation, a cardiac component, or both, automatically compares the esophageal pressure data with changes to both the airway pressure data and the air flow data to determine an accuracy of the esophageal sensor, an adjustment to the esophageal sensor, or both, and sends to a display an accuracy indicator of the esophageal sensor or that the esophageal sensor requires adjustment.
The core inventive coverage is periodic automatic comparison of esophageal pressure data with airway pressure and air flow changes during regular ventilator operation, followed by display of an accuracy, reliability, or sensor-adjustment indicator. The provided material also includes status guidance for in-range/out-of-range parameters and sensor adjustment, and the use of breathing and cardiac components to support sensor placement and reliability.
Stated Advantages
Indicates reliability of esophageal pressure data to improve operation of a ventilator.
Improves use of the ventilator by providing a display status indicator reflecting reliable/unreliable accuracy and related in-range/out-of-range parameter status or sensor adjustment needs.
Improves the placement and reliability of an esophageal sensor by determining an accuracy or adjustment need and displaying an accuracy indicator or indication that adjustment is required.
Documented Applications
No documented applications found
Interested in licensing this patent?