VENTILATOR-INITIATED PROMPT REGARDING DETECTION OF DOUBLE TRIGGERING DURING VENTILATION

• US 20140130798A1
• Filed: 01/16/2014
• Published: 05/15/2014
• Est. Priority Date: 11/29/2010
• Status: Abandoned Application

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: Milne, Gary, Hensley, Kirk, Doyle, Peter R., Kimm, Gardner
• Application Number:
  US14/157,360
• Publication Number:
  US 20140130798A1
• Time in Patent Office: Days
• US Class Current: 128/202.22
• CPC Class Codes: A61M 16/0051 with alarm devices
• CPC Class Codes: A61M 16/0057 Pumps therefor
• CPC Class Codes: A61M 16/0063 Compressors
• CPC Class Codes: A61M 16/026 specially adapted for predicting, e.g. for determining an information representative of a flow limitation during a ventilation cycle by using a root square technique or a regression analysis
• CPC Class Codes: A61M 16/04 Tracheal tubes catheters in general A61M25/00
• CPC Class Codes: A61M 16/06 Respiratory or anaesthetic masks
• CPC Class Codes: A61M 16/0816 Joints or connectors
• CPC Class Codes: A61M 16/0833 T- or Y-type connectors, e.g. Y-piece
• CPC Class Codes: A61M 16/0875 Connecting tubes
• CPC Class Codes: A61M 2016/0021 with a proportional output signal, e.g. from a thermistor
• CPC Class Codes: A61M 2016/0027 pressure meter
• CPC Class Codes: A61M 2016/0036 in the breathing tube and used in both inspiratory and expiratory phase
• CPC Class Codes: A61M 2205/502 User interfaces, e.g. screens or keyboards
• CPC Class Codes: A61M 2205/505 Touch-screens; Virtual keyboard or keypads; Virtual buttons; Soft keys; Mouse touches
• CPC Class Codes: A61M 2230/43 Composition of exhalation
• CPC Class Codes: G16H 50/20 for computer-aided diagnosis, e.g. based on medical expert systems
• CPC Class Codes: G16Z 99/00 Subject matter not provided for in other main groups of this subclass

Abstract

This disclosure describes systems and methods for monitoring and evaluating ventilatory parameters, analyzing those parameters and providing useful notifications and recommendations to clinicians. That is, modern ventilators monitor, evaluate, and graphically represent multiple ventilatory parameters. However, many clinicians may not easily recognize data patterns and correlations indicative of certain patient conditions, changes in patient condition, and/or effectiveness of ventilatory treatment. Further, clinicians may not readily determine appropriate ventilatory adjustments that may address certain patient conditions and/or the effectiveness of ventilatory treatment. Specifically, clinicians may not readily detect or recognize the presence of double triggering during ventilation. According to embodiments, a ventilator may be configured to monitor and evaluate diverse ventilatory parameters to detect double triggering and may issue notifications and recommendations suitable for a patient to the clinician when double triggering is implicated. The suitable notifications and recommendations may further be provided in a hierarchical format.

Claims

1. A ventilator-implemented method for detecting double triggering during ventilation of a patient, the method comprising:

collecting data associated with ventilatory parameters;

processing the collected ventilatory parameter data, wherein the step of processing the collected ventilatory parameter data comprises deriving ventilatory parameter data from the collected ventilatory parameter data;

analyzing the processed ventilatory parameter data, wherein the step of analyzing the processed ventilatory parameter data comprises;

receiving at least one predetermined threshold associated with the processed ventilatory parameter data; and

detecting whether the processed ventilatory parameter data breaches the received at least one predetermined threshold at a predetermined frequency;

determining that double triggering is implicated upon detecting that the processed ventilatory data breaches the received at least one predetermined threshold at the predetermined frequency; and

issuing a smart prompt when the double triggering is implicated.

2. The method of claim 1, wherein the processed ventilatory parameter data comprises exhaled tidal volume, and

wherein the step of analyzing of the exhaled tidal volume further comprises:

receiving a predetermined threshold for the exhaled tidal volume, the predetermined threshold comprising;

an exhaled tidal volume that is less than 10 percent of a delivered tidal volume;

determining the delivered tidal volume; and

determining that the exhaled tidal volume is less than 10 percent of the delivered tidal volume.

3. The method of claim 1, wherein the processed ventilatory parameter data comprises an expiratory time (T_E) for a patient-initiated mandatory breath.

4. The method of claim 3, wherein the step of analyzing the expiratory time (T_E) for the patient-initiated mandatory breath comprises:

receiving a predetermined threshold for the expiratory time (T_E) the predetermined threshold comprising;

an expiratory time (T_E) threshold of less than 240 ms;

determining an expiratory time (T_E) for the patient-initiated mandatory breath; and

determining that the expiratory time (T_E) is less than 240 ms.

5. The method of claim 3, wherein the step of analyzing the expiratory time (T_E) for the patient-initiated mandatory breath comprises:

receiving a predetermined threshold for the expiratory time (T_E), the predetermined threshold comprising;

an expiratory time (T_E) threshold of less than 210 ms;

determining an expiratory time (T_E) for the patient-initiated mandatory breath; and

determining that the expiratory time (T_E) is less than 210 ms.

6. The method of claim 3, wherein the step of analyzing the expiratory time (T_E) for the patient-initiated mandatory breath comprises:

receiving a predetermined threshold for the expiratory time (T_E) the predetermined threshold comprising;

an expiratory time (T_E) threshold of less than 190 ms;

determining an expiratory time (T_E) for the patient-initiated mandatory breath; and

determining that the expiratory time (T_E) is less than 190 ms.

7. The method of claim 1, wherein the processed ventilatory parameter data comprises a disconnect alarm, and

wherein the step of analyzing of the disconnect alarm comprises:

determining that the disconnect alarm has not been activated.

8. The method of claim 1, further comprising:

identifying one or more ventilatory settings associated with a ventilatory treatment of the patient;

determining an appropriate smart prompt based at least in part on evaluating the one or more ventilatory settings; and

wherein the issued smart prompt is the appropriate smart prompt.

9. The method of claim 8, wherein the one or more ventilatory settings are a ventilation breath type selected from a group of ventilation breath types of pressure controlled (PC), volume-targeted-pressure-control (VC+), pressure-support (PS), and volume-support (VS).

10-22. -22. (canceled)