# US 2025/0082884 A1 · Systems and methods for monitoring the respiratory status of a user > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2025/0082884 A1 - Document ID: US20250082884A1 - Status: Published application - Kind: A1 - Application number: 18/889,903 - Filed: 2024-09-19 - Published: 2025-03-13 - Earliest claimed: 2022-11-17 - Assignees: Roam Technologies Pty Ltd. - Applicants: Roam Technologies Pty Ltd. - Inventors: Shan-Shan WANG; Eugene Weng Hong LAI; Gavin Dean MAY; Jay Reginald FLACK; Jeremy Travis KWARCINSKI; Sisi ZHENG - Web page: https://patentgrep.com/patent/US20250082884A1 ## CPC - A61B 5/0205: Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition - A61M 16/0672: {Nasal cannula assemblies for oxygen therapy} - A61B 5/02427: {Details of sensor} - A61B 5/0816: {Measuring devices for examining respiratory frequency (measuring frequency of electric signals G01R23/00)} - A61B 5/746: {Alarms related to a physiological condition, e.g. details of setting alarm thresholds or avoiding false alarms} - A61B 5/6819: {Nose} - A61B 2562/0238: Optical sensor arrangements for performing transmission measurements on body tissue - A61M 2202/0007: introduced into the body - A61M 2202/0208: Oxygen - A61M 2205/0227: Materials having sensing or indicating function, e.g. indicating a pressure increase - A61M 2205/3306: Optical measuring means - A61M 2205/3334: Measuring or controlling the flow rate - A61M 2205/50: with microprocessors or computers - A61M 2205/584: having a color code - A61M 2210/0618: Nose - A61M 2230/005: Parameter used as control input for the apparatus - A61M 2230/04: Heartbeat characteristics, e.g. ECG, blood pressure modulation - A61M 2230/20: Blood composition characteristics - A61M 2230/42: Rate - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) - 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 A device for monitoring the respiratory status of a user is disclosed. The device may comprise a nasal cannula comprising a nasal chamber including first and second prongs, a connector configured to couple the nasal cannula to a remote device, and a tube configured to couple the nasal chamber to the connector. The nasal cannula may also comprise optical fibers passing through at least a portion of the tube. A first optical fiber may be configured to transmit light to a first nasal passage of the user, a second optical fiber may be configured to receive light passing through a nose septum and into a second nasal passage of the user. ## Claims ### Claim at position 1 1-20. (canceled) ### Claim 21 A system for monitoring respiratory status of a user, comprising: a nasal cannula including a first prong configured to be inserted into a first nasal passage of the user and a second prong configured to be inserted into a second nasal passage of the user; a light transmitter coupled to a first optical fiber, wherein the light transmitter is configured to transmit, via the first optical fiber and the first prong, a first light to the first nasal passage of the user; a photodetector coupled to a second optical fiber, wherein the photodetector is configured to receive, via the second prong and the second optical fiber, a second light from the second nasal passage of the user, the second light being at least a portion of the first light that passes into the second nasal passage from the first nasal passage; at least one processor configured to detect a difference in a characteristic between the first light and the second light and determine one or more respiratory parameters associated with the respiratory status based at least partly on the detected difference; and a third optical fiber configured to display one or more visual indications of the determined results for one or more respiratory parameters. ### Claim 22 (depends on 21) The system of claim 21, wherein the visual indications include at least one of color, color intensity, color pattern, and timing of the light displayed. ### Claim 23 (depends on 21) The system of claim 21, wherein the visual indications reflect the respiratory status of the user in real time. ### Claim 24 (depends on 21) The system of claim 21, wherein the visual indications are programmed by the user or healthcare provider. ### Claim 25 (depends on 21) The system of claim 21, wherein the characteristic includes at least one of intensity, wavelength, frequency, color, polarization, phase, direction, speed, polarization state, and dispersion. ### Claim 26 (depends on 21) The system of claim 21, wherein the first light includes a plurality of wavelengths, and the at least one processor is configured to detect the difference in absorbance at each of the plurality of wavelengths between the first light and the second light. ### Claim 27 (depends on 21) The system of claim 21, wherein the one or more respiratory parameters include at least one of an oxygen saturation (SpO2) level, a heart rate, a respiratory rate, a perfusion index, and a breathing pattern. ### Claim 28 (depends on 21) The system of claim 21, further including an oxygen concentrator configured to direct oxygen to the user via the nasal cannula, wherein the at least one processor is configured to adjust one or more of a concentration or a flow rate of the oxygen directed to the user based on the determined one or more respiratory parameters. ### Claim 29 (depends on 28) The system of claim 28, wherein the oxygen concentrator is a portable oxygen concentrator. ### Claim 30 (depends on 28) The system of claim 28, wherein the oxygen concentrator comprises a sensor module. ### Claim 31 (depends on 28) The system of claim 28, wherein the sensor module comprises at least one of a photoplethysmography sensor, a pressure sensor, a temperature sensor, and a humidity sensor. ### Claim 32 (depends on 21) The system of claim 21, wherein the nasal cannula comprises a keyed receiver. ### Claim 33 (depends on 32) The system of claim 32, wherein the keyed receiver comprises a barbed connection and a mating ring. ### Claim 34 (depends on 21) The system of claim 21, wherein the visual indication includes displaying light of a first color if at least one of the determined one or more respiratory parameters is above a threshold value and displaying light of a second color if at least one of the determined one or more respiratory parameters is below a threshold value. ### Claim 35 (depends on 21) The system of claim 21, further including an indicator configured to provide a visual indication of an incorrect positioning of the first and second prongs of the nasal cannula on the user. ### Claim 36 A method of monitoring respiratory status of a user, comprising: discharging, from a light transmitter, first light into a first nasal passage of the user via a first prong of a nasal cannula inserted into the first nasal passage; receiving, at a photodetector, second light from a second nasal passage of the user via a second prong of the nasal cannula inserted into the second nasal passage, wherein the second light includes at least a portion of the first light that passes into the second nasal passage from the first nasal passage; using at least one processor to (i) detect a difference in a characteristic between the first light and the second light, and (ii) determine one or more respiratory parameters associated with the respiratory status based at least partly on the detected difference; and providing a visual indication of the determined results for one or more respiratory parameters via a third optical fiber. ### Claim 37 (depends on 36) The method of claim 36, wherein the characteristic includes at least one of intensity, wavelength, frequency, color, polarization, phase, direction, speed, polarization state, and dispersion, and wherein the one or more respiratory parameters include at least one of an oxygen saturation (SpO2) level, a heart rate, a respiratory rate, a perfusion index, and a breathing pattern. ### Claim 38 (depends on 36) The method of claim 36, further including directing oxygen to the user via the nasal cannula and adjusting one or more of a concentration or a flow rate of the oxygen directed to the user based on the determined one or more respiratory parameters. ### Claim 39 (depends on 36) The method of claim 36, further including providing a visual indication of the determined one or more respiratory parameters via an optical fiber connected to the nasal cannula. ### Claim 40 (depends on 39) The method of claim 39, wherein the visual indication includes (a) displaying light of a first color if at least one of the determined one or more respiratory parameters is above a target range, (b) displaying light of a second color if the least one of the determined one or more respiratory parameters is below the target range, and (c) displaying light of a third color if the at least one of the determined one or more respiratory parameters is within the target range.