Aerosol enhancement device

• US 7,204,245 B2
• Filed: 05/15/2001
• Issued: 04/17/2007
• Est. Priority Date: 07/06/2000
• Status: Expired due to Fees

• Current Assignee: Clinical Technology Incorporated
• Original Assignee: Clinical Technology Incorporated
• Inventors: Johnson, Robert, DuBose, Robert
• Primary Examiner(s): Dawson; Glenn K.
• Application Number:
  US09/855,403
• Publication Number:
  US 20020121275A1
• Time in Patent Office: 2,163 Days
• Field of Search: 12820014-20024, 128/203.12, 128/203.24, 128/203.26, 128/204.18, 128/204.21, 128/205.24, 12820714-20718, 128/202.27
• US Class Current: 128/200.14
• CPC Class Codes: A61M 15/0015 located upstream of the dispenser, i.e. not traversed by the product
• CPC Class Codes: A61M 15/0016 located downstream of the dispenser, i.e. traversed by the product
• CPC Class Codes: A61M 15/0018 with exhalation check valves
• CPC Class Codes: A61M 15/0086 Inhalation chambers
• CPC Class Codes: A61M 16/0093 by adsorption, absorption or filtration
• CPC Class Codes: A61M 16/0808 Condensation traps
• CPC Class Codes: A61M 16/1055 bacterial
• CPC Class Codes: A61M 16/1065 in the expiratory path
• CPC Class Codes: A61M 2206/16 Rotating swirling helical flow, e.g. by tangential inflows

Abstract

An aerosol medication delivery apparatus includes a fixed volume holding chamber which is constructed to allow for a uniformly mixed, concentrated bolus of medicated aerosol to be delivered with each breath. The device further includes a universal inlet, so that any standard small volume nebulizer, as well as any standard metered dose inhaler (MDI), may be utilized therewith. Also filtration can be added to address contaminated patient air and aerosol. A one-way valve is positioned in the patient mouthpiece, to help control the loss of aerosol, and thereby reduce waste.

Claims

1. An aerosol enhancement device, comprising:

a mouthpiece;

a spacer member fluidly attached to said mouthpiece through a mouthpiece port, said spacer member having interior walls which define an interior volume, said interior volume comprising a mixing chamber;

an inlet port disposed in said spacer member for receiving a medicated aerosol from an exterior source into said mixing chamber;

an air inlet port disposed in said spacer member for receiving air into said mixing chamber;

wherein said interior walls which define said interior volume comprise a plurality of generally planar wall segments and angled transition zones are disposed between adjacent ones of said wall seaments; and

an adapter disposed in said inlet port for receiving a medicated aerosol, said adapter comprising a universal fitting which is capable of attaching said spacer member to either a nebulizer or a metered dose inhaler (MDI);

wherein said adapter is reversible, being disposable in a first orientation for attachment of said spacer member to a nebulizer, and being disposable in a second orientation for attachment of said spacer member to an MDI.

2. The aerosol enhancement device as recited in claim 1, and further comprising an exhaust port in said mouthpiece.

3. The aerosol enbancement device as recited in claim 2, and further comprising a one-way valve in said exhaust port.

4. The aerosol enhancement device as recited in claim 3, wherein said one-way valve comprises a flap valve.

5. The aerosol enhancement device as recited in claim 2, and further comprising an exhalation filter in said exhaust port.

6. The aerosol enhancement device as recited in claim 1, and further comprising a one-way valve disposed in said air inlet port.

7. The aerosol enhancement device as recited in claim 1, wherein the inlet port for receiving a medicated aerosol and the air inlet port are interchangeable.

8. The aerosol enhancement device as recited in claim 1, wherein said spacer member comprises eight of said wall segments, such that said mixing chamber is generally octagonal in configuration.

9. An aerosol enhancement device, comprising:

a mouthpiece;

a spacer member fluidly attached to said mouthpiece via a mouthpiece port, said spacer member having an outer body which defines an interior volume;

an inlet port disposed in said spacer member for receiving a medicated aerosol from an exterior source into said interior volume; and

an adapter associated with said inlet port for receiving a medicated aerosol, said adapter comprising a universal fitting which is capable of attaching said spacer member to either a nebulizer or a metered dose inhaler (MDI);

wherein said adapter is reversible, being disposable in a first orientation for attachment of said spacer member to a nebulizer, and being disposable in a second orientation for attachment of said spacer member to an MDI;

said adapter comprising a first rigid Connector end and a second flexible connector end, said first rigid connector end being adapted for attachment to a nebulizer and said second flexible connector end being adapted for attachment to an MDI.

10. The aerosol enhancement device as recited in claim 9, said adapter further comprising a flange portion for engaging said adapter with said spacer member.

11. The aerosol enhancement device as recited in claim 9, and further comprising an air inlet port disposed in said spacer member for receiving air into said air passage.

12. The aerosol enhancement device as recited in claim 9, and further comprising an exhaust port in said mouthpiece.

13. The aerosol enhancement device as recited in claim 12, and further comprising a one-way valve in said exhaust port.

14. The aerosol enhancement device as recited in claim 13, wherein said one-way valve comprises a flap valve.

15. The aerosol enhancement device as recited in claim 12, and further comprising an exhalation filter in said exhaust port.

16. The aerosol enhancement device as recited in claim 11, and further comprising a one-way valve disposed in said air inlet port.

17. The aerosol enhancement device as recited in claim 11, wherein the inlet port for receiving a medicated aerosol and the air inlet port are interchangeable.

18. An aerosol enhancement device, comprising:

a mouthpiece;

a spacer member fluidly attached to said mouthpiece through a mouthpiece port, said spacer member having interior walls which define an interior volume, said interior volume comprising a mixing chamber;

an inlet port disposed in said spacer member for receiving a medicated aerosol from an exterior source into said mixing chamber; and

an air inlet port disposed in said spacer member for receiving air into said mixing chamber;

wherein said interior walls defining said interior volume comprise a plurality of generally planar wall segments and angled transition zones are disposed between adjacent ones of said wall segments; and

wherein the inlet port for receiving a medicated aerosol and the air inlet port are interchangeable.

19. The aerosol enhancement device as recited in claim 18, and further comprising an exhaust port in said mouthpiece.

20. The aerosol enhancement device as recited in claim 19, and further comprising a one-way valve in said exhaust port.

21. The aerosol enhancement device as recited in claim 20, wherein said one-way valve comprises a flap valve.

22. The aerosol enhancement device as recited in claim 19, and further Comprising an exhalation filter in said exhaust port.

23. The aerosol enhancement device as recited in claim 18, and further comprising a One-way valve disposed in said air inlet port.

24. The aerosol enhancement device as recited in claim 18, and further comprising an adapter disposed in said inlet port for receiving a medicated aerosol, said adapter Comprising a universal fitting which is capable of attaching said spacer member to either a nebulizer or a metered dose inhaler (MDI).