초록 ▼

A light weight securable nasal cannula and system including the nasal cannula for delivering therapeutic gas, e.g., oxygen, to the nostrils of a patient. The nasal cannula may include a hollow body having at least one inhale aperture defined therein and at least one nasal insert therein. Each nasal

A light weight securable nasal cannula and system including the nasal cannula for delivering therapeutic gas, e.g., oxygen, to the nostrils of a patient. The nasal cannula may include a hollow body having at least one inhale aperture defined therein and at least one nasal insert therein. Each nasal insert may include a nasal insert tube associated with the nasal insert of the body. Each nasal insert may further include at least one exhale aperture adjacent to the nasal insert tube, wherein each of the exhale apertures, either alone or in combination, has a cross-sectional area greater than a cross-sectional area of the nasal insert tube. Each nasal insert may further include an annular sleeve surrounding the nasal insert tube and the at least one exhale aperture, the annular sleeve including a contact surface formed thereon and configured for placement against an inside surface of the nostril to achieve a friction fit.

대표청구항 ▼

1. A nasal cannula, comprising: a hollow body, comprising: a chamber;an intake port leading to the chamber, the intake port configured for connection to a pressurized therapeutic gas line for receiving therapeutic gas for delivery into the chamber inside the hollow body; andtwo exit ports, each exit

1. A nasal cannula, comprising: a hollow body, comprising: a chamber;an intake port leading to the chamber, the intake port configured for connection to a pressurized therapeutic gas line for receiving therapeutic gas for delivery into the chamber inside the hollow body; andtwo exit ports, each exit port in fluid communication with the intake port and the chamber and configured for delivering the therapeutic gas to a patient; andtwo nasal inserts, each nasal insert connected to one of the two exit ports and configured for placement within a nostril of a patient, each nasal insert further comprising: a nasal insert tube connected to one of the exit ports, the nasal insert tube configured to be inserted into a nostril of a patient for delivering the therapeutic gas;only one exhale aperture adjacent to, but not surrounding, the nasal insert tube, the exhale aperture comprising a cross-sectional area greater than a cross-sectional area of the nasal insert tube; andan annular sleeve surrounding the nasal insert tube and the exhale aperture, the annular sleeve comprising an external contact surface formed thereon having a distal end opposite the hollow body, the distal end having tear drop cross-section, the external contact surface configured for placement against an inside surface of the nostril to achieve a friction fit. 2. The nasal cannula according to claim 1, wherein the nasal cannula comprises silicone. 3. The nasal cannula according to claim 1, wherein the annular sleeve comprises silicone. 4. The nasal cannula according to claim 1, wherein the annular sleeve comprises a resilient elastomer material. 5. The nasal cannula according to claim 1, wherein each of the annular sleeves forms a tear drop cross-sectioned, dual-lumen ring configured for placement entirely with the nostril. 6. The nasal cannula according to claim 1, wherein an axis of the nasal insert tube does not fall within a cross-sectional area of the exhale aperture. 7. The nasal cannula according to claim 1, further comprising a supply tube configured for attachment to, and in fluid communication with, the intake port. 8. The nasal cannula according to claim 7, further comprising a supply nozzle fitment on one end of the supply tube. 9. The nasal cannula according to claim 7, further comprising a clip configured for attachment to the supply tube and to patient clothing. 10. The nasal cannula according to claim 1, wherein the contact surface of the annular sleeve forms an exclusive contact interface with the nostril. 11. A low flow gas system, comprising: a nasal cannula, comprising: a hollow body, comprising: a chamber;an intake port leading to the chamber, the intake port configured for connection to a pressurized therapeutic gas line for receiving therapeutic gas for delivery into the chamber inside the hollow body; andtwo exit ports, each exit port in fluid communication with the intake port and the chamber and configured for delivering the therapeutic gas to a patient; andtwo nasal inserts, each nasal insert connected to one of the two exit ports and configured for placement within a nostril of a patient, each nasal insert further comprising: a nasal insert tube connected to one of the exit ports, the nasal insert tube configured to be inserted into a nostril of a patient for delivering the therapeutic gas;only one exhale aperture adjacent to, but not surrounding, the nasal insert tube, the exhale aperture comprising a cross-sectional area greater than a cross-sectional area of the nasal insert tube; andan annular sleeve having a tear drop cross-section along an outer periphery opposite the hollow body and surrounding the nasal insert tube and the exhale aperture, the annular sleeve comprising a contact surface formed thereon and configured for placement against an inside surface of the nostril to achieve a friction fit; anda supply tube configured for attachment at one end to the inhale aperture and further configured with a nozzle fitment on an opposite end of the supply tube for attachment to a gas source. 12. The system according to claim 11, further comprising a clip configured for attachment to the supply tube and to patient clothing. 13. The system according to claim 11, further comprising the gas source. 14. The system according to claim 13, wherein the gas source is an oxygen canister. 15. The system according to claim 11, wherein the annular sleeve comprises silicone. 16. An integral nasal cannula, comprising: a hollow body having at least one intake port and two exit ports disposed therein;two nasal inserts disposed around the two exit ports, each nasal insert further comprising: a nasal insert tube comprising a proximate end in fluid communication with one of the two exit ports and a distal end configured to be inserted into a nostril of a patient for delivering a therapeutic gas;only one exhale aperture adjacent to, but not surrounding, the nasal insert tube, the exhale aperture having a cross-sectional area greater than a cross-sectional area of the nasal insert tube; andan annular sleeve having an external contact surface with tear drop cross-section along an outer periphery opposite the hollow body the annular sleeve surrounding both the distal end of the nasal insert tube and the exhale aperture, the external contact surface configured for placement against an inside surface of the nostril to achieve a friction fit. 17. The integral nasal cannula according to claim 16, wherein the integral nasal cannula comprises silicone. 18. The integral nasal cannula according to claim 16, wherein the annular sleeve comprises a resilient elastomer material. 19. The nasal integral cannula according to claim 16, wherein each of the annular sleeves forms a tear drop cross-sectioned, dual-lumen ring configured for placement entirely within the nostril. 20. The integral nasal cannula according to claim 16, wherein an axis of the nasal insert tube does not fall within a cross-sectional area of the exhale aperture. 21. The integral nasal cannula according to claim 16, further comprising a supply tube configured for attachment to, and in fluid communication with, the intake port.