Visual indicator for an aerosol medication delivery apparatus and system
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61M-015/00
A61M-011/00
A61M-016/00
출원번호
US-0313876
(2011-12-07)
등록번호
US-8550067
(2013-10-08)
발명자
/ 주소
Bruce, Sarah
Schmidt, James N.
출원인 / 주소
Trudell Medical International
대리인 / 주소
Brinks Hofer Gilson & Lione
인용정보
피인용 횟수 :
3인용 특허 :
179
초록▼
A delivery system includes a holding chamber with first, second and third openings, and independently moveable first, second and third flow control members. A delivery system includes a holding chamber and a flow control member including a flap pivotable from an at rest position in a direction towar
A delivery system includes a holding chamber with first, second and third openings, and independently moveable first, second and third flow control members. A delivery system includes a holding chamber and a flow control member including a flap pivotable from an at rest position in a direction toward an outlet of a user interface and away from an output end of the holding chamber in response to a pressure being applied thereto.
대표청구항▼
1. A delivery system comprising: a holding chamber having an input end, an output end comprising a user interface having an outlet and an interior volume of space defined between said input and output ends, said output end having a first opening communicating between said user interface and said int
1. A delivery system comprising: a holding chamber having an input end, an output end comprising a user interface having an outlet and an interior volume of space defined between said input and output ends, said output end having a first opening communicating between said user interface and said interior volume, wherein a medication dispensing pathway is defined between said outlet of said user interface and said interior volume of said holding chamber, and separate second and third openings communicating between said user interface and an ambient environment;a first flow control member moveable between a first position, wherein said first flow control member is configured to prevent fluid flow through said first opening, and a second position, wherein said first flow control member is configured to allow fluid flow through said first opening and along said medication dispensing pathway;a second flow control member moveable between a first position, wherein said second flow control member is configured to prevent fluid flow through said second opening, and a second position, wherein said second flow control member is configured to allow fluid flow through said second opening, wherein said second flow control member comprises a flap pivotable away from an at rest Position in a direction toward said outlet of said user interface and away from said input end of said holding chamber in response to a pressure being applied thereto, wherein said flap abuts a fixed stop when in said at rest position;a third flow control member moveable between a first position, wherein said third flow control member is configured to prevent fluid flow through said third opening, and a second position, wherein said third flow control member is configured to allow fluid flow through said third opening; andwherein said first, second and third flow control members are independently moveable relative to each other. 2. The delivery system of claim 1 wherein said first flow control member comprises a petal valve, and wherein said first opening is defined by a plurality of openings formed between a central hub portion and a plurality of radially extending appendages, said appendages and said central hub portion defining a valve seat for said petal valve. 3. The delivery system of claim 1 wherein said second and third openings define exhalation ports and said second and third flow control members are configured to allow fluid flow through said exhalation ports during exhalation. 4. The delivery system of claim 1 wherein said second flow control member comprises a hinged flap. 5. The delivery system of claim 1 wherein said second and third openings and said second and third flow control members are coupled to said user interface. 6. The delivery system of claim 5 wherein said user interface comprises a mask. 7. The delivery system of claim 5 wherein said user interface is releasably connected to an end portion of said holding chamber. 8. The delivery system of claim 1 wherein said first flow control member comprises a duckbill valve. 9. The delivery system of claim 1 wherein said input end comprises a backpiece configured to hold a pressurized metered dose inhaler. 10. The delivery system of claim 1 wherein said fixed stop is formed on said output end of said holding chamber. 11. The delivery system of claim 1 wherein said fixed stop is formed on said output end of said holding chamber. 12. A delivery system comprising: a holding chamber having an input end, an output end comprising a user interface having an outlet and an interior volume of space defined between said input and output ends, said output end having a first opening communicating between said user interface and said interior volume, wherein a medication dispensing pathway is defined between said outlet of said user interface and said interior volume of said holding chamber, and separate second and third openings communicating between said user interface and an ambient environment;a pressurized metered dose inhaler containing a medicament communicating with said input end,a first flow control member moveable between a first position, wherein said first flow control member is configured to prevent fluid flow through said first opening, and a second position, wherein said first flow control member is configured to allow fluid flow through said first opening and along said medication dispensing pathway;a second flow control member moveable between a first position, wherein said second flow control member is configured to prevent fluid flow through said second opening, and a second position, wherein said second flow control member is configured to allow fluid flow through said second opening, wherein said second flow control member comprises a flap pivotable from an at rest position in a direction toward said outlet of said user interface and away from said input end of said holding chamber in response to a pressure being applied thereto, wherein said flap abuts a fixed stop when in said at rest position;a third flow control member moveable between a first position, wherein said third flow control member is configured to prevent fluid flow through said third opening, and a second position, wherein said third flow control member is configured to allow fluid flow through said third opening; andwherein said first, second and third flow control members are independently moveable relative to each other. 13. The delivery system of claim 12 wherein said first flow control member comprises a petal valve, and wherein said first opening is defined by a plurality of openings formed between a central hub portion and a plurality of radially extending appendages, said appendages and said central hub portion defining a valve seat for said petal valve. 14. The delivery system of claim 12 wherein said second and third openings define exhalation ports and said second and third flow control members are configured to allow fluid flow through said exhalation ports during exhalation. 15. The delivery system of claim 12 wherein said second flow control member comprises a hinged flap. 16. The delivery system of claim 12 wherein said second and third openings and said second and third flow control members are coupled to said user interface. 17. The delivery system of claim 16 wherein said user interface comprises a mask. 18. The delivery system of claim 16 wherein said user interface is releasably connected to an end portion of said holding chamber. 19. The delivery system of claim 12 wherein said first flow control member comprises a duckbill valve. 20. The delivery system of claim 12 wherein said input end comprises a backpiece, wherein said pressurized metered dose inhaler comprises a mouthpiece received through an opening formed in said backpiece. 21. A delivery system comprising: a holding chamber having an input end, an output end comprising a user interface and an interior volume of space defined between said input and output ends, said user interface comprising an outlet, and wherein said holding chamber defines a longitudinal axis extending between said input and output ends, wherein a medication dispensing pathway is defined between said outlet of said user interface and said interior volume of said holding chamber;a flow control member comprising a flap pivotable from an at rest position in a direction toward said outlet of said user interface and away from said output end of said holding chamber in response to a pressure being applied thereto, wherein said flap is positioned outside of said medication dispensing pathway and moves forwardly of a plane extending perpendicular to said longitudinal axis as said flap is pivoted from said at rest position. 22. The delivery system of claim 21 wherein said flap comprises a surface area facing toward said outlet of said user interface and visible to the user. 23. The delivery system of claim 21 wherein said flow control member is pivotable from said at rest position in response to an inhalation pressure. 24. The delivery system of claim 21 wherein said flow control member comprises a first flow control member, and further comprising a second flow control member controlling a flow of fluid from said interior volume to said outlet of said user interface. 25. The delivery system of claim 24 wherein said second flow control member comprises a petal valve. 26. The delivery system of claim 24 wherein said second flow control member comprises a duckbill valve. 27. The delivery system of claim 21 wherein said flow control member is coupled to said user interface. 28. The delivery system of claim 27 wherein said user interface comprises a mask. 29. The delivery system of claim 27 wherein said user interface is releasably connected to an end portion of said holding chamber. 30. The delivery system of claim 21 wherein said input end comprises a backpiece configured to hold a pressurized metered dose inhaler.
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