CA2542640A1 - Unit dose capsules and dry powder inhaler - Google Patents

Unit dose capsules and dry powder inhaler Download PDF

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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
Application number
CA002542640A
Other languages
French (fr)
Other versions
CA2542640C (en
Inventor
Solomon S. Steiner
Trent Poole
Robert Feldstein
Per B. Fog
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mannkind Corp
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 CA2642084A priority Critical patent/CA2642084C/en
Priority claimed from CA002379137A external-priority patent/CA2379137C/en
Publication of CA2542640A1 publication Critical patent/CA2542640A1/en
Application granted granted Critical
Publication of CA2542640C publication Critical patent/CA2542640C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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.
CA002542640A 1999-07-23 2000-07-21 Unit dose capsules and dry powder inhaler Expired - Fee Related CA2542640C (en)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115030005A (en) * 2022-06-30 2022-09-09 李智 Bituminous paving damage restoration filling device

Cited By (2)

* Cited by examiner, † Cited by third party
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