US Patent No: 5,988,163
Number of patents in Portfolio can not be more than 2000
Dry powder medicament inhalator having an inhalation-activated flow diverting means for triggering delivery of delivery of medicament
Stats
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Nov 23, 1999
Issued date -
May 11, 1998
filing date -
09/076,255
serial no -
In Force
status
Importance
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Abstract
An inhalation-activated inhalator having a primary inhalation passage and a secondary inhalation passage disposed in communication with the primary inhalation passage and a source of medicament. The primary inhalation passage has a flow inhibiting mechanism connected to a blocking plate positioned to selectively block fluid flow between the secondary and primary inhalation passage. As the user's inhalation reaches a defined rate, the flow inhibiting mechanism restricts flow through the primary inhalation passage and moves the blocking plate to enable airflow through the secondary passage. Thus, as the user achieves a desired inhalation rate, the medicament is provided through the secondary inhalation passage, thereby optimizing the delivery of medicament to the lungs.
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First Claim
Related Publications
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 5,408,994 Inhalation device | 47 | 1993 | |
| 5,437,271 Deagglomerators for dry powder inhalers | 50 | 1994 | |
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| 5,692,496 Dry powder medicament inhalator having an inhalation-activated flow diverting means for triggering delivery of medicament | 18 | 1996 | |
| 5,823,183 Dry powder medicament inhalator having an inhalation-activated flow diverting means for triggering delivery of medicament | 23 | 1997 | |
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| 5,482,032 Dry powder inhalers | 39 | 1994 | |
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| 5,483,954 Inhaler and medicated package | 22 | 1994 | |
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| 4,667,668 Dosage inhalator | 50 | 1985 | |
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| 4,805,811 Dosage device | 42 | 1988 | |
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| 5,033,463 Multi-dose inhaler for medicaments in powder form | 139 | 1990 | |
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| 5,622,166 Dry powder inhaler delivery system | 83 | 1995 | |
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| 5,347,999 Inhalation device free from propellant gas having brush abrading powder from tablet | 31 | 1993 | |
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| 5,320,714 Powder inhalator | 76 | 1992 | |
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| 4,627,432 Devices for administering medicaments to patients | 247 | 1983 | |
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| 5,161,524 Dosage inhalator with air flow velocity regulating means | 159 | 1991 | |
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| 5,327,883 Apparatus for aerosolizing powdered medicine and process and using | 77 | 1991 | |
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| 4,664,107 Inhalation activatable dispensers | 115 | 1984 | |
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| 5,388,572 Dry powder medicament inhalator having an inhalation-activated piston to aerosolize dose and deliver same | 126 | 1993 | |
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| 5,447,151 Powder inhaler with suction actuated locking means | 69 | 1993 | |
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| 4,668,218 Indicating means for a dosage dispensing device | 145 | 1986 | |
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| 5,201,308 Powder inhaler | 85 | 1992 | |