Methods and apparatus for relieving headaches, rhinitis and other common ailments

• US 7,017,573 B1
• Filed: 07/12/2000
• Issued: 03/28/2006
• Est. Priority Date: 07/12/1999
• Status: Expired due to Term

• Current Assignee: Capnia, Inc.
• Original Assignee: Capnia, Inc.
• Inventors: Rasor, Julia S., Rasor, Ned S.
• Primary Examiner(s): Bennett, Henry
• Assistant Examiner(s): BUNIN, ANDREW M
• Application Number:
  US09/614,389
• Time in Patent Office: 2,085 Days
• Field of Search: 128/200.24, 128/203.12, 128/203.22, 128/203.29
• US Class Current: 128/200.24
• CPC Class Codes: A61H 2033/145 with CO2
• CPC Class Codes: A61H 33/14 Devices for gas baths with ozone, hydrogen, or the like production of ozone or hydrogen C01B, C25B1/02
• CPC Class Codes: A61M 11/04 operated by the vapour pressure of the liquid to be sprayed or atomised air-humidification, e.g. "room humidifiers" F24F6/00
• CPC Class Codes: A61M 11/047 by exothermic chemical reaction
• CPC Class Codes: A61M 15/0041 with movable piercing or cutting means
• CPC Class Codes: A61M 15/0065 Inhalators with dosage or measuring devices A61M15/0028 takes precedence; dosage devices incorporated in aerosol cans B65D83/52
• CPC Class Codes: A61M 15/009 using medicine packages with incorporated spraying means, e.g. aerosol cans pocket atomiser of the injector type A61M11/08
• CPC Class Codes: A61M 2202/0007 introduced into the body
• CPC Class Codes: A61M 2202/0225 Carbon oxides, e.g. Carbon dioxide
• CPC Class Codes: A61M 2202/064 Powder
• CPC Class Codes: A61M 2205/8225 using incorporated gas cartridges for the driving gas
• CPC Class Codes: A61M 31/00 Devices for introducing or retaining media, e.g. remedies, in cavities of the body A61M25/00 takes precedence ; introducing or retaining ophthalmic products into the ocular cavities A61F9/0008
• CPC Class Codes: A61M 37/00 Other apparatus for introducing media into the body for reproduction or fertilisation A61B17/425; apparatus for iontophoresis or cataphoresis A61N1/30; Percutany, i.e. introducing medicines into the body by diffusion through the skin salt baths A61H33/04
• CPC Class Codes: A61P 11/00 Drugs for disorders of the respiratory system
• CPC Class Codes: A61P 11/02 Nasal agents, e.g. decongestants
• CPC Class Codes: A61P 11/06 Antiasthmatics
• CPC Class Codes: A61P 25/00 Drugs for disorders of the nervous system
• CPC Class Codes: A61P 25/02 for peripheral neuropathies
• CPC Class Codes: A61P 25/06 Antimigraine agents
• CPC Class Codes: A61P 25/08 Antiepileptics; Anticonvulsants
• CPC Class Codes: A61P 25/16 : Anti-Parkinson drugs
• CPC Class Codes: A61P 27/02 : Ophthalmic agents
• CPC Class Codes: A61P 27/14 : Decongestants or antiallergics
• CPC Class Codes: A61P 29/00 : Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID]
• CPC Class Codes: A61P 37/08 : Antiallergic agents antiasthmatic agents A61P11/06; ophthalmic antiallergics A61P27/14
• CPC Class Codes: A61P 9/00 : Drugs for disorders of the cardiovascular system

Abstract

Apparatus, methods, and kits for treating symptoms associated with common ailments, such as headaches, rhinitis, asthma, epilepsy, nervous disorders and the like, are provided. The apparatus comprises dispensers for carbon dioxide and other therapeutic gases. The methods comprise delivering small volumes of these gases to patients in a manner where the gas infuses a body region in order to bathe the mucous membranes therein. It has been found that even very short exposure of patients to small volumes and high concentrations of such gases can provide significant relief from symptoms.

Claims

1. A method for delivering a therapeutic gas to a person having a nasal cavity lined with a mucous membrane, said method comprising:

generating a flow of a therapeutic gas; and

infusing the nasal cavity to contact the mucous membrane with the flow of therapeutic gas while the person refrains from inhaling the therapeutic gas in order to maintain the concentration of the therapeutic gas in the nasal cavity, wherein the therapeutic gas is selected from the group consisting of carbon dioxide, nitric oxide, helium, dilute mixtures of nitric oxide, and isocapnic mixtures of acid gases, and wherein the infused therapeutic gas passes out of the nasal cavity through the nose or mouth without entering the lungs.

2. A method as in claim 1, wherein the therapeutic gas comprises carbon dioxide.

3. A method as in claim 2, wherein the carbon dioxide is present in a carrier gas.

4. A method as in claim 2, wherein generating comprises generating a flow at a rate in the range from 0.5 cc/sec to 20 cc/sec of carbon dioxide.

5. A method as in claim 4, wherein the gas flow is continued for from 1 to 100 seconds.

6. A method as in claim 5, further comprising at least a second infusing step which is continued for from 1 to 100 seconds.

7. A method as in claim 6, further comprising at least a third infusing step which is continued for from 1 to 100 seconds.

8. A method as in claim 2, wherein the generating step further comprises mixing reagents, which, upon mixing, release carbon dioxide.

9. A method as in claim 1, wherein the therapeutic gas is present in a carrier gas.

10. A method as in claim 9, wherein the therapeutic gas consists of nitric oxide, the carrier gas is non-oxidizing, and the carrier gas and nitric oxide form a dilute mixture of nitric oxide.

11. A method as in claim 1, wherein generating comprises generating a flow at a rate in the range from 0.5 cc/sec to 20 cc/sec of therapeutic gas.

12. A method as in claim 11, wherein the gas flow is continued for from 1 to 100 seconds.

13. A method as in claim 12, further comprising at least a second infusing step which is continued for from 1 to 100 seconds.

14. A method as in claim 13, further comprising at least a third infusing step which is continued for from 1 to 100 seconds.

15. A method as in claim 1, wherein infusing comprises directing the flow of therapeutic gas to one nostril and allowing the flow to exit through at least one other facial orifice selected from the group consisting of the other nostril and the mouth.

16. A method as in claim 1, wherein infusing comprises directing the flow of therapeutic gas into the mouth and allowing the flow to exit through the at least one nostril.

17. A method as in claim 1, further comprising adjusting the flow rate of the gas to a level which the patient perceives is comfortable.

18. A method as in claim 9, further comprising adjusting the duration of treatment in response to changes in the gas flow rate, where decreases in flow rate result in an increase in treatment time.

34. A method as in claim 1, 31, or 33, wherein infusing comprises directing the flow of therapeutic gas into both nostrils and allowing the gas to exit through the mouth.

35. A method as in claims 15, 31, or 33 wherein the person'"'"'s mouth is closed and the flow exists entirely from the other nostril.

19. A method for generating a therapeutic dosage of gas and delivering said gas to a patient having a nasal cavity, said method comprising:

releasing from a hand-held dispenser a flow of treatment gas in the range from 0.5 cc/sec to 20 cc/sec to the nasal cavity, wherein the treatment gas comprises a therapeutic gas selected from the group consisting of carbon dioxide, nitric oxide, helium, dilute mixtures of nitric oxide, and isocapnic mixtures of acid gases and wherein the patient refrains from breathing the therapeutic gas while the flow enters the nasal cavity in order to maintain the concentration of the treatment gas, and wherein the infused therapeutic gas passes out of the nasal cavity through the nose or mouth without entering the lungs.

20. A method as in claim 19, wherein the treatment gas flow consists essentially of carbon dioxide.

21. A method as in claim 20, wherein the carrier gas is biologically active.

22. A method as in claim 19, wherein the treatment gas flow comprises carbon dioxide in a carrier gas.

23. A method as in claim 22, wherein the carrier gas is inert.

24. A method as in claim 19, wherein the treatment gas further comprises a therapeutic gas and a gas selected from the group consisting of air, oxygen, nitrogen, and halogenated hydrocarbons.

25. A method as in claim 19, wherein the hand-held dispenser has an outlet that is suitable for sealing against a human nostril.

26. A method as in claim 19, wherein the gas flow is continued for from 1 to 100 seconds.

27. A method as in claim 26, further comprising at least a second releasing step which is continued for from 1 to 100 seconds.

28. A method as in claim 27, further comprising at least a third releasing step which is continued for from 1 to 100 seconds.

29. A method as in claim 19, wherein releasing comprises adjusting the flow rate to within the 0.5 cc/sec to 20 cc/sec range.

30. A method as in claim 19, wherein the therapeutic gas consists of nitric oxide, the nitric oxide is present in a carrier gas, said carrier gas being inert and non-oxidizing, and wherein the carrier gas and nitric oxide form a dilute mixture of nitric oxide.

31. A method for delivering a therapeutic gas to a breathing person having a nasal cavity lined with a mucous membrane, a trachea and a lung, said method comprising:

generating a flow of a therapeutic gas; and

infusing the nasal cavity to contact the mucous membrane with the flow of therapeutic gas while the person substantially inhibits passage of the therapeutic gas into the trachea and the lung by limiting inhalation of the therapeutic gas to maintain the concentration of the therapeutic gas in the nasal cavity, and wherein the infused therapeutic gas passes out of the nasal cavity through the nose or mouth without entering the lungs.

32. A method as in claim 31, wherein the therapeutic gas consists essentially of carbon dioxide, and wherein the flow consists solely of the therapeutic gas.

33. A method for delivering a therapeutic gas to a breathing person having a nasal cavity lined with a mucous membrane, said method comprising:

generating a flow of a therapeutic gas; and

infusing the nasal cavity to contact the mucous membrane with the flow of therapeutic gas, while the person adjusts his breathing pattern to refrain from inhaling the therapeutic gas in order to maintain the concentration of the therapeutic gas in the nasal cavity, and wherein the infused therapeutic gas passes out of the nasal cavity through the nose or mouth without entering the lungs.