CA2542640A1 - Unit dose capsules and dry powder inhaler - Google Patents
Unit dose capsules and dry powder inhaler Download PDFInfo
- Publication number
- CA2542640A1 CA2542640A1 CA002542640A CA2542640A CA2542640A1 CA 2542640 A1 CA2542640 A1 CA 2542640A1 CA 002542640 A CA002542640 A CA 002542640A CA 2542640 A CA2542640 A CA 2542640A CA 2542640 A1 CA2542640 A1 CA 2542640A1
- Authority
- CA
- Canada
- Prior art keywords
- dry powder
- section
- mouthpiece
- intake
- powder inhaler
- 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.)
- Granted
Links
- 239000002775 capsule Substances 0.000 title abstract 3
- 229940112141 dry powder inhaler Drugs 0.000 title abstract 2
- 239000003814 drug Substances 0.000 abstract 1
- 239000000843 powder Substances 0.000 abstract 1
Abstract
The dry powder inhaler comprises an intake section; a mixing section, and a mouthpiece. The mouthpiece is connected by a swivel joint to the mixing section, and may swivel back into the intake section and be enclosed by a cover. The intake chamber comprises a piston with a tapered piston rod and spring, and one or more bleed-through orifices to modulate the flow of air through the device. It optionally comprises a feedback module to generate a tone indicating when the proper rate of airflow has been achieved. The mixing section holds a capsule with holes containing a dry powder medicament, and further opens and closes the capsule when the intake section is at a certain angle to the mouthpiece. The mixing section is a Venturi chamber to impart a cyclonic flow of air passing through the mixing chamber.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA2642084A CA2642084C (en) | 1999-07-23 | 2000-07-21 | Unit dose capsules and dry powder inhaler |
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14546499P | 1999-07-23 | 1999-07-23 | |
US60/145,464 | 1999-07-23 | ||
US20612300P | 2000-05-22 | 2000-05-22 | |
US60/206,123 | 2000-05-22 | ||
CA002379137A CA2379137C (en) | 1999-07-23 | 2000-07-21 | Unit dose capsules and dry powder inhaler |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002379137A Division CA2379137C (en) | 1999-07-23 | 2000-07-21 | Unit dose capsules and dry powder inhaler |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2642084A Division CA2642084C (en) | 1999-07-23 | 2000-07-21 | Unit dose capsules and dry powder inhaler |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2542640A1 true CA2542640A1 (en) | 2001-02-01 |
CA2542640C CA2542640C (en) | 2009-01-06 |
Family
ID=36646314
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002542640A Expired - Fee Related CA2542640C (en) | 1999-07-23 | 2000-07-21 | Unit dose capsules and dry powder inhaler |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA2542640C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115030005A (en) * | 2022-06-30 | 2022-09-09 | 李智 | Bituminous paving damage restoration filling device |
-
2000
- 2000-07-21 CA CA002542640A patent/CA2542640C/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115030005A (en) * | 2022-06-30 | 2022-09-09 | 李智 | Bituminous paving damage restoration filling device |
CN115030005B (en) * | 2022-06-30 | 2024-03-19 | 李智 | Asphalt pavement damage repairing and filling device |
Also Published As
Publication number | Publication date |
---|---|
CA2542640C (en) | 2009-01-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |
Effective date: 20190722 |