Ventilator-initiated prompt regarding auto-PEEP detection during pressure ventilation
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61M-016/00
G06F-003/00
출원번호
US-0827130
(2010-06-30)
등록번호
US-8607791
(2013-12-17)
발명자
/ 주소
Milne, Gary
Hensley, Kirk
Doyle, Peter R.
Kimm, Gardner
출원인 / 주소
Covidien LP
대리인 / 주소
Merchant & Gould P.C.
인용정보
피인용 횟수 :
2인용 특허 :
257
초록▼
This disclosure describes systems and methods for monitoring and evaluating ventilatory parameters, analyzing ventilatory data associated with those parameters, and providing useful notifications and/or recommendations to clinicians. Modern ventilators monitor, evaluate, and graphically represent a
This disclosure describes systems and methods for monitoring and evaluating ventilatory parameters, analyzing ventilatory data associated with those parameters, and providing useful notifications and/or recommendations to clinicians. Modern ventilators monitor, evaluate, and graphically represent a myriad of ventilatory parameters. However, many clinicians may not easily identify or 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 Auto-PEEP during various types of pressure ventilation. According to embodiments, a ventilator may be configured to monitor and evaluate diverse ventilatory parameters to detect Auto-PEEP and may issue suitable notifications and recommendations to the clinician when Auto-PEEP is implicated. The suitable notifications and recommendations may further be provided in a hierarchical format.
대표청구항▼
1. A ventilatory system for issuing a smart prompt when Auto-PEEP is implicated during pressure ventilation of a patient, comprising: at least one processor; andat least one memory, communicatively coupled to the at least one processor and containing instructions that, when executed by the at least
1. A ventilatory system for issuing a smart prompt when Auto-PEEP is implicated during pressure ventilation of a patient, comprising: at least one processor; andat least one memory, communicatively coupled to the at least one processor and containing instructions that, when executed by the at least one processor, issue a smart prompt when Auto-PEEP is implicated, the ventilatory system comprising: an Auto-PEEP detection module for detecting that Auto-PEEP is implicated upon detecting that parameter data breaches one or more predetermined thresholds;a smart prompt module for issuing a smart prompt when Auto-PEEP is implicated, the smart prompt displaying: a notification that Auto-PEEP is implicated; anda list of entries for mitigating Auto-PEEP, the list of entries including one or more primary entries that are based at least in part on determining whether the patient is a triggering patient or a non-triggering patient, wherein at least one primary entry of the one or more primary entries for a non-triggering patient is different than the one or more primary entries for a triggering patient. 2. The ventilatory system of claim 1, further comprising: the smart prompt module for determining the notification based at least in part on the parameter data that implicated Auto-PEEP. 3. The ventilatory system of claim 2, wherein the notification comprises information regarding the parameter data that implicated Auto-PEEP. 4. The ventilatory system of claim 1, wherein the list of entries further includes one or more secondary entries. 5. The ventilatory system of claim 4, wherein the secondary entries comprise: decrease inspiratory pressure in order to decrease delivered tidal volume (VT) so that expiratory time (TE) is adequate to completely exhale delivered VT. 6. The ventilatory system of claim 1, wherein the patient is a triggering patient, and wherein the primary entries comprise one or more of: decrease inspiratory time (TI);adjust ventilatory settings until end-expiratory flow (EEF) approximates zero; andinvestigate reasons for an elevated patient respiratory drive. 7. The ventilatory system of claim 1, wherein the patient is a non-triggering patient, and wherein the primary entries comprise one or more of: decrease respiratory rate (RR);decrease inspiratory time (TI); andadjust ventilatory settings until end-expiratory flow (EEF) approximates zero. 8. The ventilatory system of claim 1, wherein the ventilator detects that flow is about zero during inspiration, and wherein the ventilator determines a time, t, from detection of about zero flow until set inspiratory time (TI) ends, the primary entries comprising one or more of: decrease TI by up to t such that expiratory time (TE) may be increased while maintaining tidal volume (VT); anddecrease TI by more than t such that TE may be increased, wherein when TI is decreased by more than t, the primary entries further comprise: increase inspiratory pressure (IP) to maintain VT. 9. A graphical user interface of a ventilator for displaying one or more smart prompts corresponding to a detected condition of a patient, the ventilator configured with a computer having a user interface including the graphical user interface for accepting commands and for displaying information, the graphical user interface comprising: at least one window; andone or more elements within the at least one window comprising at least one smart prompt element for communicating information regarding the detected condition, wherein the detected condition is Auto-PEEP, and wherein the at least one smart prompt element further comprises: a notification that Auto-PEEP is implicated; anda list of entries for mitigating Auto-PEEP, the list of entries based at least in part on determining whether the patient is a triggering patient or a non-triggering patient, wherein at least one entry of the list of entries for a non-triggering patient is different from the list of entries for a triggering patient. 10. The graphical user interface of claim 9, wherein the patient is a triggering patient, and wherein the list of entries comprise one or more of: decrease inspiratory time (TI);adjust ventilatory settings until end-expiratory flow (EEF) approximates zero;investigate reasons for an elevated patient respiratory drive; anddecrease inspiratory pressure in order to decrease delivered tidal volume (VT) so that expiratory time (TE) is adequate to completely exhale delivered VT. 11. The graphical user interface of claim 9, wherein the patient is a non-triggering patient, and wherein the list of entries comprise one or more of: decrease respiratory rate (RR);decrease inspiratory time (TI);adjust ventilatory settings until end-expiratory flow (EEF) approximates zero; anddecrease inspiratory pressure in order to decrease delivered tidal volume (VT) so that expiratory time (TE) is adequate to completely exhale delivered VT. 12. The graphical user interface of claim 9, wherein the ventilator determines that Auto-PEEP is implicated by: receiving one or more predetermined thresholds associated with end-expiratory flow (EEF);detecting that EEF is positive when the EEF breaches the one or more predetermined thresholds; anddetermining that Auto-PEEP is implicated when EEF is positive for a predetermined number of breaths. 13. The graphical user interface of claim 9, wherein the ventilator determines that Auto-PEEP is implicated by: calculating a time required to reach functional residual capacity (FRC);comparing the time required to reach FRC with expiratory time (TE); anddetermining that Auto-PEEP is implicated when the time required to reach FRC is greater than TE. 14. The graphical user interface of claim 9, wherein the ventilator detects that Auto-PEEP is implicated by: receiving a positive end-expiratory pressure (PEEP) setting, wherein the PEEP setting is about 0 cmH2O or greater;receiving one or more predetermined thresholds associated with end-expiratory pressure (EEP);detecting that the EEP breaches the one or more predetermined thresholds when the EEP minus the PEEP setting is greater than the one or more predetermined thresholds; anddetermining that Auto-PEEP is implicated when the EEP breaches the one or more predetermined thresholds. 15. The graphical user interface of claim 9, wherein the ventilator detects that Auto-PEEP is implicated by: receiving one or more predetermined thresholds associated with respiratory resistance data;detecting that respiratory resistance has increased when the respiratory resistance data reaches the one or more predetermined thresholds; anddetermining that Auto-PEEP is implicated when the respiratory resistance has increased. 16. The graphical user interface of claim 9, wherein the ventilator detects that Auto-PEEP is implicated by: comparing a pulmonary time constant to expiratory time (TE); anddetermining that Auto-PEEP is implicated when the TE is less than a predetermined number of pulmonary time constants.
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