Nasal inhaler

• US 6,644,305 B2
• Filed: 04/11/2001
• Issued: 11/11/2003
• Est. Priority Date: 04/14/2000
• Status: Expired due to Fees

• Current Assignee: Trudell Medical International (Trudell Medical Limited)
• Original Assignee: Trudell Medical International (Trudell Medical Limited)
• Inventors: Grychowski, Jerry, Foley, Martin, MacRae, John
• Primary Examiner(s): Lo, Weilun
• Assistant Examiner(s): MITCHELL, TEENA KAY
• Application Number:
  US09/834,037
• Publication Number:
  US 20020046751A1
• Time in Patent Office: 944 Days
• Field of Search: 128/200.24, 128/200.21, 128/200.14, 128/200.11, 128/200.12, 128/200.22, 128/201.18, 128/203.12, 128/203.14, 128/203.15, 128/203.21, 128/203.28, 128/205.13, 128/205.14, 128/205.24, 222/153.13, 222/47, 222/168, 222/257, 222/380, 222/387, 239/338, 604/94.01, 604/58, 604/257, D24/115
• US Class Current: 128/200.21
• CPC Class Codes: A61M 11/008 by squeezing, e.g. using a flexible bottle or a bulb
• CPC Class Codes: A61M 15/0015 located upstream of the dispenser, i.e. not traversed by the product
• CPC Class Codes: A61M 15/0086 Inhalation chambers
• CPC Class Codes: A61M 15/0088 with variable volume
• CPC Class Codes: A61M 15/08 Inhaling devices inserted into the nose
• CPC Class Codes: A61M 15/085 Fixing means therefor

Abstract

A nasal inhaler for introducing a substance to a nasal cavity of a user. The nasal inhaler comprises a chamber having an interior and an exterior, an outlet comprising an air exit passageway in flow communication with the interior of the chamber, a one-way air inlet valve in one-way flow communication with the interior of the chamber, and a dosage inlet passageway in flow communication with the interior of the chamber. A container includes a dispensing portion disposed in the dosage inlet passageway. In preferred embodiment, an adapter defines the dosage inlet passageway and is connected to the chamber. A mask also can be connected to the outlet. A method for dispensing a substance into the nasal cavity of the user comprises inserting the outlet into the nasal cavity, dispensing the substance into the chamber and inhaling through the outlet. A method for assembling a nasal inhaler assembly also is provided.

Claims

1. A nasal inhaler for introducing a substance to a nasal cavity of a user, said nasal inhaler comprising:

a chamber having an interior and an exterior, wherein said chamber is made of a flexible material;

an outlet comprising an exit passageway in flow communication with said interior of said chamber, said outlet shaped to be received in a nasal vestibule of the user;

a one-way air inlet valve in one-way flow communication with said interior of said chamber at a first location spaced from said exit passageway, said one-way air inlet valve operative to permit said one-way flow of air from said exterior of said chamber into said interior of said chamber; and

a dosage inlet passageway in flow communication with said interior of said chamber at a second location spaced from said exit passageway and from said first location.

2. The invention of claim 1 wherein said dosage inlet passageway is shaped to operably engage a container holding the substance.

3. The invention of claim 1 further comprising a plurality of outlets.

4. The invention of claim 1 further comprising a nose plug extending from said exterior of chamber adjacent said outlet, said nose plug shaped to be received in the nasal cavity of the user.

5. The invention of claim 1 further comprising a container, wherein said container comprises a dispensing portion disposed in said dosage inlet passageway.

6. A nasal inhaler for introducing a substance to a nasal cavity of a user, said nasal inhaler comprising:

a chamber having an interior and an exterior;

an outlet comprising an exit passageway in flow communication with said interior of said chamber, said outlet shaped to be received in a nasal vestibule of the user;

a one-way air inlet valve in one-way flow communication with said interior of said chamber at a first location spaced from said exit passageway, said one-way air inlet valve operative to permit said one-way flow of air from said exterior of said chamber into said interior of said chamber;

a dosage inlet passageway in flow communication with said interior of said chamber at a second location spaced from said exit passageway and from said first location; and

an adapter defining said dosage inlet passageway, wherein said chamber comprises a base having an opening and wherein said adapter has an insert portion disposed in said opening of said base in a releasable engagement therewith.

7. The invention of claim 6 wherein said adapter comprises a handle having a grippable portion.

8. The invention of claim 6 wherein said chamber and said adapter are connected with a snap-fit engagement.

9. The invention of claim 6 wherein one of said chamber and said adapter comprise a rib and the other of said chamber and said adapter comprise a groove, wherein said rib is received in said groove.

10. The invention of claim 6 wherein one of said chamber and said adapter has a valve opening, and wherein the other of said chamber and said adapter comprises a flexible valve member overlying at least a portion of said valve opening on one of said interior of said chamber and an interior of said adapter, wherein said one-way valve is formed by said valve member overlying said valve opening.

11. The invention of claim 10 wherein said valve member comprises a pair of flexible portions overlapping portions of said valve opening.

12. The invention of claim 6, wherein said interior of said chamber is sized to receive said adapter, wherein said adapter is moveable between a retracted position wherein at least a portion of said adapter is positioned inside said interior of said chamber and an extended position wherein at least a portion of said adapter extends from said chamber.

13. The invention of claim 12 wherein said adapter is releasably engaged with said chamber in said retracted and said extended positions so as to prevent movement therebetween.

14. The invention of claim 13 wherein said adapter engages said chamber with a snap-fit when in said retracted and said extended positions.

15. A nasal inhaler for introducing a substance to a nasal cavity of a user, said nasal inhaler comprising:

a chamber having an interior and an exterior;

an outlet comprising an exit passageway in flow communication with said interior of said chamber, said outlet shaped to be received in a nasal vestibule of the user;

a one-way air inlet valve in one-way flow communication with said interior of said chamber at a first location spaced from said exit passageway, said one-way air inlet valve operative to permit said one-way flow of air from said exterior of said chamber into said interior of said chamber; and

a dosage inlet passageway in flow communication with said interior of said chamber at a second location spaced from said exit passageway and from said first location, wherein said air exit passageway defines a first axis and wherein said dosage inlet passageway defines a second axis, and wherein said first and second axes are offset.

16. A nasal inhaler for introducing a substance to a nasal cavity of a user, said nasal inhaler comprising:

a chamber having an interior and an exterior;

a plurality of outlets, each of said plurality of outlets comprising an exit passageway in flow communication with said interior of said chamber, and each of said plurality of outlets shaped to be received in a nasal vestibule of the user;

a one-way air inlet valve in one-way flow communication with said interior of said chamber at a first location spaced from said exit passageways, said one-way air inlet valve operative to permit said one-way flow of air from said exterior of said chamber into said interior of said chamber; and

a dosage inlet passageway in flow communication with said interior of said chamber at a second location spaced from said exit passageways and from said first location.

17. A nasal inhaler for introducing a substance to a nasal cavity of a user, said nasal inhaler comprising:

a chamber having an interior and an exterior;

an outlet comprising an exit passageway in flow communication with said interior of said chamber, said outlet shaped to be received in a nasal vestibule of the user;

a pair of nose plugs positioned on opposite sides of said outlet and extending from said exterior of chamber adjacent said outlet, each of said nose plugs shaped to be received in the nasal cavity of the user;

a one-way air inlet valve in one-way flow communication with said interior of said chamber at a first location spaced from said exit passageway, said one-way air inlet valve operative to permit said one-way flow of air from said exterior of said chamber into said interior of said chamber; and

a dosage inlet passageway in flow communication with said interior of said chamber at a second location spaced from said exit passageway and from said first location.

18. A method for dispensing a substance into a nasal cavity of a user comprising:

providing a nasal inhaler comprising;

a chamber having an interior and an exterior, wherein said chamber is made of a flexible material;

an outlet comprising an exit passageway in flow communication with said interior of said chamber, said outlet shaped to be received in a nasal vestibule of the user;

a one-way air inlet valve in one-way flow communication with said interior of said chamber at a first location spaced from said exit passageway; and

a dosage inlet passageway in flow communication with said interior of said chamber at a second location spaced from said exit passageway and from said first location;

providing a container holding said substance, said container comprising a dispensing portion disposed in said dosage inlet passageway;

inserting said outlet into said nasal vestibule;

dispensing said substance from said container into said chamber;

dispensing said substance from said chamber through said outlet; and

compressing said chamber during said dispensing of said substance from said chamber and thereby forcing said substance within said chamber through said outlet.

19. The method of claim 18 wherein said dispensing said substance from said chamber further comprises inhaling through said outlet and thereby drawing said substance through said outlet, wherein said inhaling further comprises drawing air into said chamber from said exterior of said chamber through said one-way valve.

20. A method for dispensing a substance into a nasal cavity of a user comprising:

providing a nasal inhaler comprising;

a chamber having an interior and an exterior;

an outlet comprising an exit passageway in flow communication with said interior of said chamber, said outlet shaped to be received in a nasal vestibule of the user;

a one-way air inlet valve in one-way flow communication with said interior of said chamber at a first location spaced from said exit passageway; and

a dosage inlet passageway in flow communication with said interior of said chamber at a second location spaced from said exit passageway and from said first location;

providing a container holding said substance, said container comprising a dispensing portion disposed in said dosage inlet passageway;

providing an adapter defining said dosage inlet passageway, wherein said adapter is releasably connected to said chamber;

inserting said outlet into said nasal vestibule;

dispensing said substance from said container into said chamber; and

dispensing said substance from said chamber through said outlet.

21. The invention of claim 20 wherein said adapter comprises a handle having a grippable portion, and wherein said dispensing said substance from said container further comprises gripping said grippable portion and said container.

22. The invention of claim 20 wherein said chamber and said adapter are connected with a snap-fit engagement.

23. The invention of claim 20 wherein one of said chamber and said adapter has a valve opening, and wherein the other of said chamber and said adapter comprises a flexible valve member overlying at least a portion of said valve opening on one of said interior of said chamber and an interior of said adapter, wherein said valve opening and said valve member form said one-way valve, and further comprising drawing air into said interior of chamber from said exterior of said chamber through said one-way valve and thereby forcing said flexible valve member away from said opening and into one of said interior of said chamber and said interior of said adapter.

24. The invention of claim 20 wherein said interior of said chamber is sized to receive said adapter, and further comprising moving said adapter between a retracted position wherein at least a portion of said adapter is positioned inside said interior of said chamber and an extended position wherein at least a portion of said adapter extends from said chamber, and wherein said dispensing said substance comprises actuating said container when said adapter is in the extended position.

25. The invention of claim 24 further comprising releasably engaging said adapter with said chamber when said adapter is in said retracted and said extended positions so as to prevent movement between said adapter and said chamber.

26. A method for dispensing a substance into a nasal cavity of a user comprising:

providing a nasal inhaler comprising;

a chamber having an interior and an exterior;

an outlet comprising an exit passageway in flow communication with said interior of said chamber, said outlet shaped to be received in a nasal vestibule of the user;

a one-way air inlet valve in one-way flow communication with said interior of said chamber at a first location spaced from said exit passageway; and

a dosage inlet passageway in flow communication with said interior of said chamber at a second location spaced from said exit passageway and from said first location;

providing a container holding said substance, said container comprising a dispensing portion disposed in said dosage inlet passageway;

inserting said outlet into said nasal vestibule;

dispensing said substance from said container into said chamber at a first velocity; and

dispensing said substance from said chamber through said outlet at a second velocity, wherein said second velocity is less than said first velocity.

27. A method for dispensing a substance into a nasal cavity of a user comprising:

providing a nasal inhaler comprising;

a chamber having an interior and an exterior;

an outlet comprising an exit passageway in flow communication with said interior of said chamber, said outlet shaped to be received in a nasal vestibule of the user;

a one-way air inlet valve in one-way flow communication with said interior of said chamber at a first location spaced from said exit passageway; and

a dosage inlet passageway in flow communication with said interior of said chamber at a second location spaced from said exit passageway and from said first location, wherein said air exit passageway defines a first axis and wherein said dosage inlet passageway defines a second axis, and wherein said first and second axes are not co-axial;

providing a container holding said substance, said container comprising a dispensing portion disposed in said dosage inlet passageway;

inserting said outlet into said nasal vestibule;

dispensing said substance from said container into said chamber; and

dispensing said substance from said chamber through said outlet.

28. A method for dispensing a substance into a nasal cavity of a user comprising:

providing a nasal inhaler comprising;

a chamber having an interior and an exterior;

a pair of outlets each comprising an exit passageway in flow communication with said interior of said chamber, each of said outlets shaped to be received in a nasal vestibule of the user;

a one-way air inlet valve in one-way flow communication with said interior of said chamber at a first location spaced from said exit passageway; and

a dosage inlet passageway in flow communication with said interior of said chamber at a second location spaced from said exit passageway and from said first location;

providing a container holding said substance, said container comprising a dispensing portion disposed in said dosage inlet passageway;

inserting at least one of said outlets into said nasal vestibule;

dispensing said substance from said container into said chamber; and

dispensing said substance from said chamber through said at least one outlet.

29. A method for dispensing a substance into a nasal cavity of a user comprising:

providing a nasal inhaler comprising;

a chamber having an interior and an exterior;

an outlet comprising an exit passageway in flow communication with said interior of said chamber, said outlet shaped to be received in a first nasal vestibule of the user and wherein said nasal inhaler further comprises a nose plug extending from said exterior of chamber adjacent said outlet;

a one-way air inlet valve in one-way flow communication with said interior of said chamber at a first location spaced from said exit passageway; and

a dosage inlet passageway in flow communication with said interior of said chamber at a second location spaced from said exit passageway and from said first location;

providing a container holding said substance, said container comprising a dispensing portion disposed in said dosage inlet passageway;

inserting said outlet into said first nasal vestibule;

inserting said nose plug into a second nasal vestibule;

dispensing said substance from said container into said chamber; and

dispensing said substance from said chamber through said outlet.

30. The invention of claim 29 wherein said nasal inhaler further comprises a pair of nose plugs positioned on opposite sides of said outlet.

31. A nasal inhaler for introducing a dosage of a substance to a nasal cavity of a user, said nasal inhaler comprising:

a chamber having an interior and an exterior;

an outlet comprising an exit passageway in flow communication with said interior of said chamber, said outlet shaped to be received in a nasal vestibule of the user;

a one-way air inlet valve in one-way flow communication with said interior of said chamber at a first location spaced from said exit passageway, said one-way air inlet valve operative to permit said one-way flow of air from said exterior of said chamber into said interior of said chamber;

an adapter moveably connected with said chamber, said adapter comprising a dosage inlet passageway in flow communication with said interior of said chamber at a second location spaced from said exit passageway and from said first location, said adapter moveable relative to said chamber between a retracted position, wherein at least a portion of said adapter is disposed in said interior of said chamber, and an extended position, wherein at least a portion of said adapter extends from said chamber.

32. The invention of claim 31 wherein a grippable portion of said adapter extends from said chamber when said adapter is in the retracted position.

33. The invention of claim 31 further comprising a container having a dispensing portion and a holding portion, wherein said dispensing portion is disposed in said dosage inlet passageway, and wherein at least a portion of said holding portion is disposed in said interior of said chamber when said adapter is in the retracted position.

34. The invention of claim 31 wherein said adapter is releasably engaged with said chamber when in said retracted and extended positions.

35. The invention of claim 34 further comprising a detent engaged between said chamber and said adapter.

36. The invention of claim 35 wherein said detent comprises a groove formed on said adapter and a first and second rib axially displaced on said interior of said chamber, wherein said first rib is received in said groove when said adapter is in said retracted position and wherein said second rib is received in said groove when said adapter is in said extended position.

37. A method of assembling a nasal inhaler assembly comprising:

providing a chamber having an interior, an exterior, and comprising an intake portion having an intake opening, an outlet comprising an exit passageway in flow communication with said interior of said chamber, said outlet shaped to be received in a nasal vestibule of a user, a one-way air inlet valve in one-way flow communication with said interior of said chamber at a first location spaced from said exit passageway, and an adapter having a dosage inlet passageway and an insert portion;

connecting said insert portion of said adapter with said intake portion of said chamber, wherein said dosage inlet passageway is placed in flow communication with said interior of said chamber through said intake opening at a second location spaced from said air exit passageway and from said first location;

providing a container holding said substance, said container comprising a dispensing portion; and

inserting said dispensing portion into said dosage inlet passageway.

38. The invention of claim 37 wherein said connecting comprising inserting said insert portion into said intake opening of said chamber.

39. The invention of claim 38 further comprising releasably engaging said chamber with said adapter using a detent.

40. The invention of claim 38 wherein said adapter comprises a first adapter and further comprising providing a second adapter having a dosage inlet passageway and an insert portion, and wherein said container comprises a first container, and further comprising providing a second container holding a substance, wherein said container comprises a dispensing portion, and further comprising disconnecting said first adapter from said intake portion of said chamber and connecting said insert portion of said second adapter to said intake portion of said chamber, and inserting said dispensing portion of said second container in said dosage inlet passageway of said second adapter.

41. The invention of claim 40 wherein said first container is a nasal spray container and wherein said second container is a pressurized metered dose nasal inhaler.