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US20080078689A1 - Dry powder inhaler - Google Patents

Dry powder inhaler Download PDF

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Publication number
US20080078689A1
US20080078689A1 US11/904,338 US90433807A US2008078689A1 US 20080078689 A1 US20080078689 A1 US 20080078689A1 US 90433807 A US90433807 A US 90433807A US 2008078689 A1 US2008078689 A1 US 2008078689A1
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United States
Prior art keywords
blister
strip
base sheet
dry powder
mouthpiece
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US11/904,338
Inventor
Dimitrios Pentafragas
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Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US11/904,338 priority Critical patent/US20080078689A1/en
Publication of US20080078689A1 publication Critical patent/US20080078689A1/en
Abandoned legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M15/00—Inhalators
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M15/00—Inhalators
    • A61M15/0028—Inhalators using prepacked dosages, one for each application, e.g. capsules to be perforated or broken-up
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M15/00—Inhalators
    • A61M15/0001—Details of inhalators; Constructional features thereof
    • A61M15/0021—Mouthpieces therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M15/00—Inhalators
    • A61M15/0001—Details of inhalators; Constructional features thereof
    • A61M15/0021—Mouthpieces therefor
    • A61M15/0025—Mouthpieces therefor with caps
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M15/00—Inhalators
    • A61M15/0028—Inhalators using prepacked dosages, one for each application, e.g. capsules to be perforated or broken-up
    • A61M15/003—Inhalators using prepacked dosages, one for each application, e.g. capsules to be perforated or broken-up using capsules, e.g. to be perforated or broken-up
    • A61M15/0031—Inhalators using prepacked dosages, one for each application, e.g. capsules to be perforated or broken-up using capsules, e.g. to be perforated or broken-up by bursting or breaking the package, i.e. without cutting or piercing
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M15/00—Inhalators
    • A61M15/0028—Inhalators using prepacked dosages, one for each application, e.g. capsules to be perforated or broken-up
    • A61M15/003—Inhalators using prepacked dosages, one for each application, e.g. capsules to be perforated or broken-up using capsules, e.g. to be perforated or broken-up
    • A61M15/0043—Non-destructive separation of the package, e.g. peeling
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M15/00—Inhalators
    • A61M15/0065—Inhalators with dosage or measuring devices
    • A61M15/0068—Indicating or counting the number of dispensed doses or of remaining doses
    • A61M15/0081—Locking means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2202/00—Special media to be introduced, removed or treated
    • A61M2202/06—Solids
    • A61M2202/064—Powder
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2206/00—Characteristics of a physical parameter; associated device therefor
    • A61M2206/10—Flow characteristics
    • A61M2206/16—Rotating swirling helical flow, e.g. by tangential inflows

Definitions

  • the present invention refers to an inhaler for the uptake of medicaments in the form of dry powder and to specially designed single dose blister strips that are used with the said inhaler.
  • the inhaling devices currently used can be separated into two categories:
  • EP0069715 describes a device in which the powder is metered in given dosages through apertures located in a rotatable disc, these apertures being introduced into an airduct or channel through which air is inhaled, by rotating the disc.
  • GB2242134 describes a device which uses a flexible strip defining a plurality of pockets each of which contains a dose of medicament which can be inhaled.
  • the device contains a chamber in which the strip is housed, an opening station which contains means for peeling the two sheets or the strip apart, and an outlet through which the user can inhale the medicament.
  • the advantage of the present invention is that the user can visually check the presence of the medicament in the blister of the strip prior to inhalation and verify after the inhalation that he has received the entire dose of the medicament. Additionally, the device is simple to manufacture and easy to operate.
  • the device of the present invention is comprised of three parts: the mouthpiece, through which the powder is inhaled, the blister strip support surface and the strip storage compartment(s), which house(s) a large number of blister strips.
  • the three parts are connected to each other and can be independently opened.
  • the support surface contains an attachment point, where the blister strip is attached with the help of an attachment formation; a cavity, which accommodates the blister of the strip; and strip guides, which secure the proper and firm placement of the strip on the surface.
  • the single dose blister strip is comprised of two sheets that can be pealed away from each other.
  • the base sheet has a blister which contains the powder, and an attachment formation which fits to the attachment point of the support surface.
  • the cover sheet seals the base sheet only in the area around the blister.
  • the principle of use is that the user securely attaches the blister strip on the attachment surface, pulls away the cover sheet of the blister by exercising a slight force, checks the content of the blister, inhales the medicament, and finally verifies that he has received the entire dose.
  • FIGS. 1-9 depict examples of the invention.
  • FIG. 1 shows different views of an example of an inhaler.
  • FIG. 2 shows the mouthpiece of the device along with its component parts.
  • FIG. 3 shows the part of the device that contains the area on which the blisters are placed.
  • FIG. 4 shows the blister storage compartment
  • FIG. 5 shows a single dose blister strip and the way it is put together.
  • FIG. 6 shows the process that reveals the powder in the blister.
  • FIG. 7 shows the flow of air and powder during the inhalation process.
  • FIGS. 8 and 9 are further examples of inhalers based on the principle of the present invention.
  • the inhaler ( FIG. 1 ) includes 3 basic parts, the mouthpiece A with its cover, part B with the surface on which the blister strip is placed, and the blister strip storage part C.
  • the parts are connected to each other and can be opened independently.
  • the mouthpiece ( FIG. 2 ) is comprised of parts 1 , 2 and 3 . Part 1 locks in part 2 and part 2 locks in part 3 .
  • Part 1 is the external part of the mouthpiece, and may have air openings at its base.
  • Part 2 is a cylinder with a wider base.
  • the top of the cylinder has an opening 4 , which serves as the exit of the powder from the device.
  • formation 5 which may be of helical or other shape, through which the inhaled powder containing air exits the device.
  • the end of formation 5 at the base of part 2 is blocked in half with surface 6 .
  • Part 3 is also a cylinder, which has a wider top.
  • the interior of part 3 is divided in chambers 7 and 8 , by an upright flat surface 9 .
  • the base of part 3 touches the blister. It has two holes, 10 and 11 , one on each side of dividing part 9 .
  • Hole 11 may contain a sieve, in order to block the passage of larger particles.
  • Chamber 7 contains hole 10 , and is blocked at its top with surface 6 .
  • chamber 7 contains hole 12 , which serves as the air entrance.
  • the single dose blister strip is placed on the attachment surface of part B ( FIG. 3 ).
  • This surface has a protrusion 13 that serves as the attachment point, a cavity 14 which receives the blister of the strip, and a system of strip guides, 15 and 16 in the specific example.
  • the protrusion, the cavity and the guides enable the correct alignment of the strip on the surface of part B and secure its firm placement during the use of the device.
  • the lower portion of part B can be used as a storage compartment for the blister strips.
  • the strip storage part C ( FIG. 4 ) can be of various shapes, and may contain a grid, depending on the number of strips it accommodates, e.g. 30 or 60.
  • the blister strip ( FIG. 5 ) consists of two sheets ( FIG. 5A ) made of suitable material e.g. PVC, aluminium, polyamide, paper, polyester, vinyl gum.
  • One of the two sheets is the base sheet 17 , which has the blister 18 that contains the powder, and the attachment hole 19 .
  • the other is the cover sheet 20 that is fixed to the base sheet, e.g. by heat adhesion, and air-tightly seals only the area around blister 18 , as shown in the drawing ( FIG. 5B , darkened area).
  • Sheet 20 is then folded by a 180-degree rotation around axis DE, revealing hole 19 and covering the flat surface of blister 18 ( FIG. 5C ).
  • the process by which the blister-contained powder is exposed takes place in two stages ( FIG. 6 ).
  • the user secures the strip on the support surface of part B by placing hole 19 around protrusion 13 .
  • Blister 18 is then placed in cavity 14 with the assistance of guides 15 and 16 .
  • the user closes the mouthpiece and pulls cover sheet 20 towards the direction of the arrow until it is completely detached.
  • the user can verify that the powder contained in blister 18 has been revealed and is available for inhalation ( FIG. 6C ). The user then just closes the mouthpiece and inhales. Finally, by opening again the mouthpiece, he can visually check whether he has inhaled the medicament.
  • the air that is breathed-in enters the mouthpiece via the air openings, and then enters chamber 7 through hole 12 . From there on and passing through hole 10 , the air carries along the powder which is located in blister 18 and passing through hole 11 brings it to chamber 8 . From there and through formation 5 , the powder exits the device.
  • FIG. 8 Another example of the invention is shown in FIG. 8 .
  • the attachment point for the blister strip on surface B is cavity 21 .
  • the mouthpiece A contains projection 22 which, when said mouthpiece is closed, enters cavity 21 and in this way secures the blister.
  • the blister is placed on surface B with hole 19 above cavity 21 .
  • blister strip hole 19 could be replaced by a cavity.
  • FIG. 9 shows another embodiment of the invention.
  • the attaching component of the blister strip is formation 23 that is placed in the openings 24 of guides 15 and 16 of surface B.
  • a further embodiment of the inhaler would include its use through the nose. This could be achieved by substituting the mouthpiece with the appropriate attachment.

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Anesthesiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Animal Behavior & Ethology (AREA)
  • Pulmonology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Biophysics (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
  • Medicinal Preparation (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Abstract

An inhalation device for the uptake of medicaments that are in the form of dry powder contained in the blisters of specially designed single dose blister strips. The device is comprised of a mouthpiece (A), a strip support surface area (B), and one or more storage areas (C). Furthermore, the single dose blister strip is described. It is comprised of two sheets (17, 20) that are fixed in such a manner so that when they get separated the powder becomes available for inhalation.

Description

  • This application is a divisional of co-pending application Ser. No. 10/506,940 filed on Sep. 8, 2004, which is 371 of International Application No: PCT/GRO2/00050 filed on Sep. 25, 2002, which designated the U.S., claims the benefit thereof and incorporates the same by reference.
  • The present invention refers to an inhaler for the uptake of medicaments in the form of dry powder and to specially designed single dose blister strips that are used with the said inhaler.
  • The inhaling devices currently used can be separated into two categories:
  • 1. Those where the pharmaceutical powder is stored in a container out of which a measured amount of powder can be released via specific mechanisms. EP0069715 for example, describes a device in which the powder is metered in given dosages through apertures located in a rotatable disc, these apertures being introduced into an airduct or channel through which air is inhaled, by rotating the disc.
  • 2. Those where measured amounts of pharmaceutical powder can be stored separately in special containers. GB2242134 for example, describes a device which uses a flexible strip defining a plurality of pockets each of which contains a dose of medicament which can be inhaled. The device contains a chamber in which the strip is housed, an opening station which contains means for peeling the two sheets or the strip apart, and an outlet through which the user can inhale the medicament.
  • The major disadvantages of these and other similar devices are that a. the user cannot visually verify whether he has received the entire dose of the medicament, and b. they function through complicated internal mechanisms.
  • The advantage of the present invention is that the user can visually check the presence of the medicament in the blister of the strip prior to inhalation and verify after the inhalation that he has received the entire dose of the medicament. Additionally, the device is simple to manufacture and easy to operate.
  • The device of the present invention is comprised of three parts: the mouthpiece, through which the powder is inhaled, the blister strip support surface and the strip storage compartment(s), which house(s) a large number of blister strips. The three parts are connected to each other and can be independently opened. The support surface contains an attachment point, where the blister strip is attached with the help of an attachment formation; a cavity, which accommodates the blister of the strip; and strip guides, which secure the proper and firm placement of the strip on the surface.
  • The single dose blister strip is comprised of two sheets that can be pealed away from each other. The base sheet has a blister which contains the powder, and an attachment formation which fits to the attachment point of the support surface. The cover sheet seals the base sheet only in the area around the blister.
  • The principle of use is that the user securely attaches the blister strip on the attachment surface, pulls away the cover sheet of the blister by exercising a slight force, checks the content of the blister, inhales the medicament, and finally verifies that he has received the entire dose.
  • FIGS. 1-9 depict examples of the invention.
  • FIG. 1 shows different views of an example of an inhaler.
  • FIG. 2 shows the mouthpiece of the device along with its component parts.
  • FIG. 3 shows the part of the device that contains the area on which the blisters are placed.
  • FIG. 4 shows the blister storage compartment.
  • FIG. 5 shows a single dose blister strip and the way it is put together.
  • FIG. 6 shows the process that reveals the powder in the blister.
  • FIG. 7 shows the flow of air and powder during the inhalation process.
  • FIGS. 8 and 9 are further examples of inhalers based on the principle of the present invention.
  • The inhaler (FIG. 1) includes 3 basic parts, the mouthpiece A with its cover, part B with the surface on which the blister strip is placed, and the blister strip storage part C. The parts are connected to each other and can be opened independently.
  • The mouthpiece (FIG. 2) is comprised of parts 1, 2 and 3. Part 1 locks in part 2 and part 2 locks in part 3.
  • Part 1 is the external part of the mouthpiece, and may have air openings at its base.
  • Part 2 is a cylinder with a wider base. The top of the cylinder has an opening 4, which serves as the exit of the powder from the device. Inside the cylinder there is formation 5, which may be of helical or other shape, through which the inhaled powder containing air exits the device. The end of formation 5 at the base of part 2 is blocked in half with surface 6.
  • Part 3 is also a cylinder, which has a wider top. The interior of part 3 is divided in chambers 7 and 8, by an upright flat surface 9. The base of part 3 touches the blister. It has two holes, 10 and 11, one on each side of dividing part 9. Hole 11 may contain a sieve, in order to block the passage of larger particles. Chamber 7 contains hole 10, and is blocked at its top with surface 6. Furthermore, chamber 7 contains hole 12, which serves as the air entrance.
  • The single dose blister strip is placed on the attachment surface of part B (FIG. 3). This surface has a protrusion 13 that serves as the attachment point, a cavity 14 which receives the blister of the strip, and a system of strip guides, 15 and 16 in the specific example. The protrusion, the cavity and the guides enable the correct alignment of the strip on the surface of part B and secure its firm placement during the use of the device.
  • The lower portion of part B can be used as a storage compartment for the blister strips.
  • The strip storage part C (FIG. 4) can be of various shapes, and may contain a grid, depending on the number of strips it accommodates, e.g. 30 or 60.
  • The blister strip (FIG. 5) consists of two sheets (FIG. 5A) made of suitable material e.g. PVC, aluminium, polyamide, paper, polyester, vinyl gum. One of the two sheets is the base sheet 17, which has the blister 18 that contains the powder, and the attachment hole 19. The other is the cover sheet 20 that is fixed to the base sheet, e.g. by heat adhesion, and air-tightly seals only the area around blister 18, as shown in the drawing (FIG. 5B, darkened area). Sheet 20 is then folded by a 180-degree rotation around axis DE, revealing hole 19 and covering the flat surface of blister 18 (FIG. 5C).
  • The process by which the blister-contained powder is exposed takes place in two stages (FIG. 6).
  • During the first stage (FIG. 6A) and while the mouthpiece is open, the user secures the strip on the support surface of part B by placing hole 19 around protrusion 13. Blister 18 is then placed in cavity 14 with the assistance of guides 15 and 16.
  • During the second stage (FIG. 6B), the user closes the mouthpiece and pulls cover sheet 20 towards the direction of the arrow until it is completely detached.
  • At this point and after lifting the mouthpiece, the user can verify that the powder contained in blister 18 has been revealed and is available for inhalation (FIG. 6C). The user then just closes the mouthpiece and inhales. Finally, by opening again the mouthpiece, he can visually check whether he has inhaled the medicament.
  • During the process of inhalation (FIG. 7) the air that is breathed-in enters the mouthpiece via the air openings, and then enters chamber 7 through hole 12. From there on and passing through hole 10, the air carries along the powder which is located in blister 18 and passing through hole 11 brings it to chamber 8. From there and through formation 5, the powder exits the device.
  • Another example of the invention is shown in FIG. 8. The attachment point for the blister strip on surface B is cavity 21. The mouthpiece A contains projection 22 which, when said mouthpiece is closed, enters cavity 21 and in this way secures the blister. In this case, the blister is placed on surface B with hole 19 above cavity 21. Alternatively, blister strip hole 19 could be replaced by a cavity.
  • FIG. 9 shows another embodiment of the invention. In this case, the attaching component of the blister strip is formation 23 that is placed in the openings 24 of guides 15 and 16 of surface B.
  • It is obvious that there may be variations relating to the shape and the positions of the attachment point, the cavity and the guides on surface B, which can achieve appropriate and secure attachment of the blister. All these different embodiments are also included in the scope of the present invention.
  • A further embodiment of the inhaler would include its use through the nose. This could be achieved by substituting the mouthpiece with the appropriate attachment.

Claims (5)

1-7. (canceled)
8. A single dose medicament pack for use with a dry powder inhalation device, comprising a base sheet (17) and a cover sheet (20), said sheets being air tightly sealed to one another, whereby said base sheet defines a powder containing blister (18) and that the cover sheet (20) covers the base sheet around the blister and can be detached from the base sheet wherein said base sheet further comprises an attachment formation.
9. A blister strip support surface of a dry powder inhalation device suitable for use with a blister strip as claimed in claim 8 comprising an attachment point, a cavity which accommodates the blister and strip guides.
10. A single dose blister strip according to claim 8, wherein the attachment formation is a hole.
11. A blister strip support surface according to claim 9 wherein the attachment point is a protrusion.
US11/904,338 2002-03-29 2007-09-27 Dry powder inhaler Abandoned US20080078689A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US11/904,338 US20080078689A1 (en) 2002-03-29 2007-09-27 Dry powder inhaler

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
GR20020100159A GR1004350B (en) 2002-03-29 2002-03-29 Inhaler for dry powder
GR20020100159 2002-03-29
US10/506,940 US7318435B2 (en) 2002-03-29 2002-09-25 Dry powder inhaler
PCT/GR2002/000050 WO2003082389A1 (en) 2002-03-29 2002-09-25 Dry powder inhaler
US11/904,338 US20080078689A1 (en) 2002-03-29 2007-09-27 Dry powder inhaler

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
PCT/GR2002/000050 Division WO2003082389A1 (en) 2002-03-29 2002-09-25 Dry powder inhaler
US10/506,940 Division US7318435B2 (en) 2002-03-29 2002-09-25 Dry powder inhaler

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US20080078689A1 true US20080078689A1 (en) 2008-04-03

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US11/904,338 Abandoned US20080078689A1 (en) 2002-03-29 2007-09-27 Dry powder inhaler

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EP (2) EP1467787B1 (en)
JP (1) JP4572075B2 (en)
KR (1) KR100805992B1 (en)
CN (1) CN1620320B (en)
AR (1) AR039199A1 (en)
AT (2) ATE331550T1 (en)
AU (1) AU2002330653B2 (en)
BR (1) BR0209717A (en)
CA (2) CA2613027A1 (en)
CO (1) CO5611174A2 (en)
DE (1) DE60212884T2 (en)
DK (1) DK1467787T3 (en)
EA (1) EA005971B1 (en)
EG (1) EG23340A (en)
ES (1) ES2268085T3 (en)
GR (1) GR1004350B (en)
HK (1) HK1076610A1 (en)
HR (1) HRP20040668B1 (en)
HU (1) HU227735B1 (en)
IL (2) IL162858A0 (en)
MA (1) MA26403A1 (en)
MX (1) MXPA04009260A (en)
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PE (1) PE20030945A1 (en)
PL (1) PL201528B1 (en)
PT (1) PT1467787E (en)
RS (1) RS49760B (en)
SI (1) SI1467787T1 (en)
TN (1) TNSN04125A1 (en)
UA (1) UA78761C2 (en)
WO (1) WO2003082389A1 (en)
ZA (1) ZA200405383B (en)

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US20070209661A1 (en) * 2006-03-03 2007-09-13 Hugh Smyth Dry powder inhaler with aeroelastic dispersion mechanism
US8561609B2 (en) 2010-12-07 2013-10-22 Respira Therapeutics, Inc. Dry powder inhaler
US9492625B2 (en) 2009-11-12 2016-11-15 Stc.Unm Dry powder inhaler with flutter dispersion member
US10441733B2 (en) 2012-06-25 2019-10-15 Respira Therapeutics, Inc. Powder dispersion devices and methods
US11471623B2 (en) 2012-02-21 2022-10-18 Respira Therapeutics, Inc. Powder dispersion methods and devices

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WO2006010248A1 (en) * 2004-07-26 2006-02-02 1355540 Ontario Inc. Powder inhaler featuring reduced compaction inhaler
USD573251S1 (en) * 2004-09-08 2008-07-15 Dimitrios Pentafragas Dry powder inhaler
PL1811987T3 (en) 2004-11-18 2008-08-29 Uni Pharma Kleon Tsetis Pharmaceutical Laboratories S A Dry powder comprising levothyroxine sodium administered via inhalator
JP4656397B2 (en) * 2005-03-31 2011-03-23 株式会社吉野工業所 Powder container
JP4711286B2 (en) * 2005-03-31 2011-06-29 株式会社吉野工業所 Suction powder dispenser
JP2006314627A (en) * 2005-05-13 2006-11-24 Hitachi Ltd Powder drug dispenser
US8327843B2 (en) * 2005-08-25 2012-12-11 Oriel Therapeutics, Inc. Drug containment systems with sticks, related kits, dry powder inhalers and methods
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