Nasal gas delivery system and method for use thereof

• US 6,637,434 B2
• Filed: 06/28/2002
• Issued: 10/28/2003
• Est. Priority Date: 10/30/1998
• Status: Expired due to Fees

• Current Assignee: Linda J. Noble
• Original Assignee: Linda J. Noble
• Inventors: Noble, James
• Primary Examiner(s): Lo, Weilun
• Assistant Examiner(s): WEISS JR, JOSEPH
• Application Number:
  US10/183,498
• Publication Number:
  US 20020162558A1
• Time in Patent Office: 487 Days
• Field of Search: 128/202.24, 128/203.22, 128/204.12, 128/207.13, 128/207.18, 128/DIG.26, 128/912
• US Class Current: 128/207.18
• CPC Class Codes: A61M 16/0066 Blowers or centrifugal pumps
• CPC Class Codes: A61M 16/0069 the speed thereof being controlled by respiratory parameters, e.g. by inhalation
• CPC Class Codes: A61M 16/0078 Breathing bags
• CPC Class Codes: A61M 16/009 Removing used or expired gases or anaesthetic vapours filtering, sterilising or disinfecting the exhaust air in drainage systems A61M1/784; bacterial filters in the expiratory path A61M16/1065
• CPC Class Codes: A61M 16/0093 by adsorption, absorption or filtration
• CPC Class Codes: A61M 16/01 specially adapted for anaesthetising A61M16/104, A61M16/18 take precedence
• CPC Class Codes: A61M 16/0666 Nasal cannulas or tubing devices for improving normal breathing through the nose A61F5/08; nose filters A62B23/06; outside holding devices A61M25/02
• CPC Class Codes: A61M 16/1055 bacterial
• CPC Class Codes: A61M 16/22 Carbon dioxide-absorbing devices ; Other means for removing carbon dioxidecartridges with absorbing substances for respiratory apparatus A62B19/00
• CPC Class Codes: A61M 2016/1025 the O2 concentration
• CPC Class Codes: A61M 2016/103 the CO2 concentration
• CPC Class Codes: A61M 2210/0618 Nose
• CPC Class Codes: A61M 2230/005 Parameter used as control input for the apparatus
• CPC Class Codes: A61M 2230/432 partial CO2 pressure (P-CO2)
• CPC Class Codes: A61M 2230/435 partial O2 pressure (P-O2)

Abstract

A gas administering method for administering gas to an airway of a patient having a nasal vestibule and for use with a gas administering apparatus comprises a primary gas source that is operable to provide gas and a nasal vestibular portion arranged so as to receive the gas from the primary gas source. Further, the nasal vestibular portion is capable of releasing the primary gas into the nasal vestibule. The method comprises inserting the nasal vestibular portion into the nasal vestibule, forming a seal between the nasal vestibular portion and an inner surface of the nasal vestibule, administering an amount of a gas from the primary gas source at a constant flow rate into the nasal vestibule via the nasal vestibular portion, and administering an anesthetic to the patient. The anesthetic induces depression of a portion of the nervous system of the patient. Furthermore, the seal promotes airway pressure buildup that is sufficient to prevent obstruction of the airway during depression of at least a portion of the nervous system and prevents escape of the gas from between the nasal vestibule and the nasal vestibular portion.

Claims

1. A gas administering method for administering gas to an airway of a patient having a face, amount, a nervous system and a nasal vestibule and for use with a gas administering apparatus comprising a gas source that is operable to provide gas and a nasal vestibular portion arranged so as to receive the gas from the gas source, the nasal vestibular portion being capable of releasing the gas into the nasal vestibule, said method comprising:

inserting the nasal vestibular portion into the nasal vestibule;

forming a seal between the nasal vestibular portion and a surface of the nasal vestibule;

administering an amount of a gas from the gas source at a constant flow rate into the nasal vestibule via the nasal vestibular portion such that the seal causes airway pressure buildup that is sufficient to prevent obstruction of the airway during depression of at least a portion of the nervous system and prevents escape of the gas from between the nasal vestibule and the nasal vestibular portion; and

administering an anesthetic to the patient to induce depression of the at least a portion of the nervous system of the patient.

2. The gas administering method of claim 1, further comprising administering oxygen into the nasal vestibule via the nasal vestibular portion, prior to said administering of the anesthetic.

3. The gas administering method of claim 2, wherein said administering oxygen comprises administering 100% oxygen.

4. The gas administering method of claim 2, wherein said administering oxygen comprises administering a mixture of oxygen and nitrogen.

5. The gas administering method of claim 1, wherein said administering of an amount of a gas comprises administering 100% oxygen.

6. The gas administering method of claim 1, wherein said administering of an amount of a gas comprises administering air.

7. The gas administering method of claim 1, further comprising detecting for an airway obstruction.

8. A gas administering method of claim 7, wherein said detecting for an airway obstruction comprises placing a stethoscope over the trachea at the supra-sternal notch.

9. The gas administering method of claim 1, further comprising monitoring respiratory effort.

10. The gas administering method of claim 9, wherein said monitoring respiratory effort is performed via electrocardiogram monitor operating in a thoracic impedance mode.

11. The gas administering method of claim 1, further comprising retrieving anesthetic that is expired from the mouth of the patient.

12. The gas administering method of claim 11, wherein said retrieving anesthetic comprises placing an anesthetic retrieving device over the face of the patient.

13. A gas administering method for administering a gas to an airway of a patient having a nasal vestibule and for use with a gas administering apparatus comprising a gas source that is operable to provide gas at a constant flow rate and a nasal vestibular portion having a shape such that the nasal vestibular portion provides a force on a surface of the nasal vestibule, due to elasticity of the nasal vestibule, for retaining the nasal vestibular portion in the nasal vestibule, the nasal vestibular portion being arranged so as to receive the gas from the gas source, the nasal vestibular portion being capable of releasing the gas, said method comprising:

inserting the nasal vestibular portion into the nasal vestibule thereby forming a seal between the nasal vestibular portion and a surface of the nasal vestibule;

administering an amount of a gas at a constant flow rate into the nasal vestibule via the nasal vestibular portion such that the seal causes airway pressure buildup that is sufficient to prevent obstruction of the airway while under sedation and prevents escape of the gas between the nasal vestibule and the nasal vestibular portion, and

administering an anesthetic to the patient to induce depression of at least a portion of the nervous system of the patient.

14. A gas administering method of administering gas to an airway of a patient having a nasal vestibule and for use with an anesthetic administering apparatus comprising an anesthetic gas source that is operable to provide an anesthetic, said method comprising:

fastening a nasal vestibular portion to the anesthetic administering apparatus so as to receive the anesthetic gas from the anesthetic gas source, the nasal vestibular portion being capable of releasing the anesthetic gas into the nasal vestibule,

inserting the nasal vestibular portion into the nasal vestibule;

forming a seal between the nasal vestibular portion and a surface of the nasal vestibule;

fastening a supplemental gas source to the anesthetic administering apparatus, the supplemental gas source being operable to provide a supplemental gas at a constant flow rate to the anesthetic administering apparatus;

administering an amount of the supplemental gas from the supplemental gas source at a constant flow rate into the nasal vestibule, from the anesthetic administering apparatus, via the nasal vestibular portion, such that the seal promoters airway pressure buildup that is sufficient to prevent obstruction of the airway during depression of at least a portion of the nervous system and prevents escape of the anesthetic gas or the supplemental gas from between the nasal vestibule and the nasal vestibular portion; and

administering, from the anesthetic gas source via the nasal vestibular portion, an amount of the anesthetic gas sufficient to induce depression of the at least a portion of the nervous system of the patient.

15. A gas administering system for administering gas to an airway of a patient having a mouth and a nasal vestibule, said gas administering system comprising:

a gas source that is operable to provide gas at a constant flow rate; and

a nasal vestibular portion arranged so as to receive the gas from said gas source, said nasal vestibular portion being capable of releasing the gas into the nasal vestibule, said nasal vestibular portion being shaped to from a seal between the nasal vestibular causes airway pressure buildup sufficient to prevent obstruction of the airway during depression of at least a portion of the nervous system,

wherein the seal prevents escape of the gas from between the nasal vestibule and said nasal vestibular portion.

16. The gas administering system of claim 15, wherein said gas source comprises a primary gas source for providing a primary gas;

and

a supplemental gas source that is operable to provide a supplemental gas.

17. The gas administering system of claim 16, wherein said primary gas source comprises an anesthetic gas providing device.

18. The gas administering system of claim 16, wherein said primary gas source comprises an oxygen providing device.

19. The gas administering system of claim 16, wherein said supplemental gas source comprises an air providing device comprising a flow rate adjustment mechanism.

20. The gas administering system of claim 15, further comprising a respiration monitor.

21. The gas administering system of claim 15, further comprising a scavenging device for scavenging gas expired from the mouth of the patient.

22. The gas administering system of claim 15, further comprising a gas flow meter for measuring the gas flow rate of the gas provided by said gas source.

23. A gas administering method for administering gas to an airway of a patient having a face, a mouth, a nervous system and a nasal vestibule and for use with a gas administering apparatus comprising a gas source that is operable to provide gas and a nasal vestibular portion arranged so as to receive the gas from the gas source, the nasal vestibular portion being capable of releasing the gas into the nasal vestibule, said method comprising:

inserting the nasal vestibular portion into the nasal vestibule;

forming a seal between the nasal vestibular portion and a surface of the nasal vestibule;

administering an amount of a gas from the gas source at a flow rate into the nasal vestibule via the nasal vestibular portion such that the seal causes airway pressure buildup that is sufficient to prevent obstruction of the airway during depression of at least a portion of the nervous system and prevents escape of the gas from between the nasal vestibule and the nasal vestibular portion; and

administering an anesthetic to the patient to induce depression of the at least a portion of the nervous system of the patient.

24. The gas administering method of claim 23, further comprising administering oxygen into the nasal vestibule via the nasal vestibular portion, prior to said administering of the anesthetic.

25. The gas administering method of claim 24, wherein said administering oxygen comprises administering 100% oxygen.

26. The gas administering method of claim 24, wherein said administering oxygen comprises administering a mixture of oxygen and nitrogen.

27. The gas administering method of claim 23, wherein said administering of an amount of a gas comprises administering 100% oxygen.

28. The gas administering method of claim 23, wherein said administering of an amount of a gas comprises administering air.

29. The gas administering method of claim 23, further comprising detecting for an airway obstruction.

30. The gas administering method of claim 29, wherein said detecting for an airway obstruction comprises placing a stethoscope over the trachea at the supra-sternal notch.

31. The gas administering method of claim 23, further comprising monitoring respiratory effort.

32. The gas administering method of claim 31, wherein said monitoring respiratory effort is performed via electrocardiogram monitor operating in a thoracic impedance mode.

33. The gas administering method of claim 23, further comprising retrieving anesthetic that is expired from the mouth of the patient.

34. The gas administering method of claim 33, wherein said retrieving anesthetic comprises placing an anesthetic retrieving device over the face of the patient.

35. A gas administering method for administering a gas to an airway of a patient having a nasal vestibular and for use with a gas administering apparatus comprising a gas source that is operable to provide gas at a flow rate and a nasal vestibular portion having a shape such that the nasal vestibular portion provides a force on a surface of the nasal vestibule, due to elasticity of the nasal vestibule, for retaining the nasal vestibular portion in the nasal vestibule, the nasal vestibular portion being arranged sa as to receive the gas from the gas source, the nasal vestibular portion being capable of releasing the gas, said method comprising:

inserting the nasal vestibular portion into the nasal vestibule thereby forming a seal between the nasal vestibular portion and a surface of the nasal vestibule;

administering an amount of a gas at a flow rate into the nasal vestibule via the nasal vestibular portion such that the seal causes airway pressure buildup that is sufficient to prevent obstruction of the airway while under sedation and prevents escape of the gas between the nasal vestibule and the nasal vestibular portion; and

administering an anesthetic to the patient to induce depression of at least a portion of the nervous system of the patient.

36. A gas administering method for administering gas to an airway of a patient having a nasal vestibule and for use with an anesthetic administering apparatus comprising an anesthetic gas source that is operable to provide an anesthetic, said method comprising:

fastening a nasal vestibular portion to the anesthetic administering apparatus so as to receive the anesthetic gas from the anesthetic gas source, the nasal vestibular portion being capable of releasing the anesthetic gas into the nasal vestibule,

inserting the nasal vestibular portion into the nasal vestibule;

forming a seal between the nasal vestibular portion and a surface of the nasal vestibule;

fastening a supplemental gas source to the anesthetic administering apparatus, the supplemental gas source being operable to provide a supplemental gas at a flow rate to the anesthetic administering apparatus;

administering an amount of the supplemental gas from the supplemental gas source at a flow rate into the nasal vestibule, from the anesthetic administering apparatus, via the nasal vestibular portion, such that the seal promotes airway pressure buildup that is sufficient to prevent obstruction of the airway during depression of at least a portion of the nervous system and prevents escape of the anesthetic gas or the supplemental gas from between the nasal vestibule and the nasal vestibular portion; and

administering, from the anesthetic gas source via the nasal vestibular portion, an amount of the anesthetic gas sufficient to induce depression of the at least a portion of the nervous system of the patient.

37. A gas administering system for administering gas to an airway of a patient having a method and a nasal vestibule, said gas administering system comprising:

a gas source that is operable to provide gas at a flow rate; and

a nasal vestibular portion arranged so as to receive the gas from said gas source, said nasal vestibular portion being capable of releasing the gas into the nasal vestibule, said nasal vestibular portion being shaped to form a seal between the nasal vestibular portion and a surface of the nasal vestibule such that the gas released into the nasal vestibule causes airway pressure buildup sufficient to prevent obstruction of the airway during depression of at least a portion of the nervous system,

wherein the seal prevents escape of the gas from between the nasal vestibule and said nasal vestibular portion.

38. The gas administering system of claim 37, wherein said gas source comprises a primary gas source for providing a primary gas, and

a supplemental gas source that is operable to provide a supplemental gas.

39. The gas administering system of claim 38, wherein said primary gas source comprises an anesthetic gas providing device.

40. The gas administering system of claim 38, wherein said primary gas source comprises an oxygen providing device.

41. The gas administering system of claim 38, wherein said supplemental gas source comprises an air providing device comprising a flow rate adjustment mechanism.

42. The gas administering system of claim 37, further comprising a respiration monitor.

43. The gas administering system of claim 37, further comprising a scavenging device for scavenging gas expired from the mouth of the patient.

44. The gas administering system of claim 37, further comprising a gas flow meter for measuring the gas flow rate of the gas provided by said gas source.