# US 2014/0150795 A1 · System and method for detecting double triggering with remote monitoring > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0150795 A1 - Document ID: US20140150795A1 - Status: Published application - Kind: A1 - Application number: 13/690,618 - Filed: 2012-11-30 - Published: 2014-06-05 - Earliest claimed: 2012-11-30 - Assignees: Covidien LP - Applicants: Covidien LP - Inventors: Gary Milne - Web page: https://patentgrep.com/patent/US20140150795A1 ## CPC - A61M 16/0057: {Pumps therefor} - A61M 16/0051: {with alarm devices} - A61M 16/024: {including calculation means, e.g. using a processor} - A61M 16/0063: {Compressors} - A61M 2016/0021: {with a proportional output signal, e.g. from a thermistor} - A61M 2016/0027: {pressure meter} - A61M 2016/0036: {in the breathing tube and used in both inspiratory and expiratory phase} - A61M 2016/0039: {in the inspiratory circuit} - A61M 2016/0042: {in the expiratory circuit} - A61M 2205/3561: local, e.g. within room or hospital - A61M 2205/3592: using telemetric means, e.g. radio or optical transmission - A61M 2205/505: Touch-screens; Virtual keyboard or keypads; Virtual buttons; Soft keys; Mouse touches - A61M 2205/52: with memories providing a history of measured variating parameters of apparatus or patient - A61M 2230/10: Electroencephalographic signals - A61M 2230/205: partial oxygen pressure (P-O2) - A61M 2230/42: Rate - A61M 2230/432: partial CO2 pressure (P-CO2) - A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)} ## Abstract Methods and systems are provided that determine whether a patient is asynchronous with a ventilator. In certain embodiments, a ventilation system may determine whether a double-triggering event has occurred between the patient and the ventilator. The ventilation system may compare a value of the patient's exhaled tidal volume to a threshold and may determine that a double-triggering event occurred if the patient's exhaled tidal volume is less than or equal to the threshold. The ventilation system may also determine a frequency of the double-triggering events. Further, the ventilation system may provide an indication of a detected double-triggering event and an indication of the frequency of double-triggering events. ## Claims ### Claim 1 A ventilator, comprising: a processor configured to calculate a frequency of double-triggering events of a patient and to determine whether the frequency of the double-triggering events exceeds a frequency threshold; and a display configured to provide a graphical representation of the frequency of double-triggering. ### Claim 2 (depends on 1) The ventilator of claim 1, wherein the display is configured to provide an indication of detected double-triggering when the processor determines that the frequency of the double-triggering events exceeds the frequency threshold. ### Claim 3 (depends on 2) The ventilator of claim 2, wherein the indication of detected double-triggering comprises a textual indication or a number associated with the frequency of the double-triggering events. ### Claim 4 (depends on 1) The ventilator of claim 1, wherein the graphical representation is configured to change based at least in part upon the frequency of the double-triggering events. ### Claim 5 (depends on 4) The ventilation system of claim 4, wherein the graphical representation is configured to fill when the frequency of the double-triggering events increases. ### Claim 6 (depends on 5) The ventilator of claim 5, wherein the display is configured to provide the graphical representation as entirely filled when the processor determines that the frequency of the double-triggering events exceeds the frequency threshold. ### Claim 7 (depends on 1) The ventilator of claim 1, wherein the frequency of the double-triggering events comprises a percentage of double-triggering events out of a total number of breaths within a predetermined period of time. ### Claim 8 (depends on 1) The ventilator of claim 1, wherein the processor is configured to detect a double-triggering event, and wherein the display is configured to provide an indication of a detected double-triggering event. ### Claim 9 (depends on 8) The ventilator of claim 8, wherein the processor is configured to detect the double-triggering event based at least in part upon a determination that an exhaled tidal volume of the patient is approximately equal to zero millimeters. ### Claim 10 (depends on 7) The ventilator of claim 7, wherein the indication of the detected double-triggering event comprises a textual or a graphical indication. ### Claim 11 A method, comprising: calculating a frequency of double-triggering events of a patient via a processor of a ventilator; and providing a graphical representation of the frequency of the double-triggering events on a display of the ventilator. ### Claim 12 (depends on 11) The method of claim 11, comprising: determining, via the processor, whether the frequency of the double-triggering events exceeds a frequency threshold; and providing an indication of detected double-triggering when the frequency of the double-triggering events exceeds the frequency threshold on the display. ### Claim 13 (depends on 11) The method of claim 11, comprising detecting, via the processor, one or more double-triggering events, wherein detecting the one or more double-triggering events is based at least in part upon a determination that an exhaled tidal volume of the patient is approximately equal to zero milliliters. ### Claim 14 (depends on 11) The method of claim 11, wherein calculating the frequency of the double-triggering events comprises calculating a percentage of double-triggering events out of a total number of breaths within a predetermined period of time. ### Claim 15 (depends on 11) The method of claim 11, comprising changing the graphical representation based at least in part upon the frequency of the double-triggering events. ### Claim 16 (depends on 15) The method of claim 15, comprising filling the graphical representation when the frequency of the double-triggering events increases. ### Claim 17 A ventilation system, comprising: one or more sensors configured to generate one or more signals representative of a respiratory function of a patient; a processor configured to receive the one or more signals and to calculate a frequency of double-triggering events of the patient based at least in part upon the one or more signals; and a display configured to provide a graphical representation of the frequency of double-triggering. ### Claim 18 (depends on 17) The ventilation system of claim 17, wherein the processor is configured to determine whether the frequency of the double-triggering events exceeds a frequency threshold, and wherein the display is configured to provide an indication of detected double-triggering when the processor determines that the frequency of the double-triggering events exceeds the frequency threshold. ### Claim 19 (depends on 17) The ventilation system of claim 17, comprising an accessory device configured to wirelessly communicate with the processor, wherein the accessory device comprises the display. ### Claim 20 (depends on 17) The ventilation system of claim 17, wherein the processor is configured to detect a double-triggering event based at least in part upon a determination that an exhaled tidal volume of the patient is approximately equal to zero millimeters.