×

Systems and methods for predicting adverse events and assessing level of sedation during medical procedures

  • US 10,388,405 B2
  • Filed: 08/12/2016
  • Issued: 08/20/2019
  • Est. Priority Date: 03/22/2013
  • Status: Active Grant
First Claim
Patent Images

1. A system for automatically providing a quantitative assessment of a physiological state of a patient during procedural sedation, the system comprising:

  • a breath receiver in fluid communication with a patient undergoing procedural sedation;

    a sensor configured to measure a carbon dioxide concentration in air captured by the breath receiver, the sensor being coupled to the breath receiver;

    a processor configured to;

    generate, in real time, a capnogram associated with the patient, the capnogram being generated based on the carbon dioxide concentration measured by the sensor over one or more respiratory cycles;

    extract, in real time, one or more features from the capnogram that are indicative of the physiological state of the patient;

    determine, in real time, using a clustering technique, clusters of the one or more features indicative of the physiological state of the patient, wherein each of the clusters corresponds to a different physiological state;

    compute, in real time, a metric indicative of the physiological state of the patient based, at least in part, on the determined clusters;

    determine a baseline value of the metric for the patient, the baseline value corresponding to a baseline physiological state of the patient before procedural sedation begins; and

    monitor, in real time, a value of the metric relative to the baseline value to assess the physiological state of the patient during the procedural sedation, wherein monitoring the value of the metric relative to the baseline value comprises determining the physiological state of the patient based, at least in part, on the determined clusters; and

    a display configured to display an indication of the assessed physiological state of the patient during the procedural sedation.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×