US3870046A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insufflator
Assignee: Bayer Corp
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Filing: 1974-04-22
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Granted: 1975-03-11
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Expires: 1994-04-22
Abstract
Abstract This invention relates to an inhalation device for dispensing medicament in finely divided form for use in enabling a patient to inhale therefrom a dispersion of particulate material released from a capsule.
Inventors
- 👤 Roderick Douglas Elliott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:25
CPC Classifications
A; A61; A61M; A61M15/00; A61M15/0028; A61M15/003; A61M15/0033; A61M15/0091; A61M15/0098; A61M2202/00; A61M2202/06; A61M2202/064
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
143 words
An inhalation device comprising a housing having a first chamber portion and a medicament chamber portion therewithin and having a single mouthpiece formed with passage means communicating respectively with said chamber portions; said housing being provided with an air exhaust port communicating with said first chamber portion and an air inlet port communicating with said medicament chamber portion; a rotor mounted within said housing; a drive portion on said rotor driven by said air flow through said first chamber portion; means for dispersing a medicament within said medicament chamber portion; and air flow control valve means for causing air flow through said first chamber portion and said exhaust port by exhalation through said mouthpiece to effect rotor movement and for causing air flow through said inlet port and said medicament chamber portion to effect entrainment of said medicament by inhalation through said mouthpiece.
Claim 2
Dependent Claim
143 words
An inhalation device comprising a housing having a first chamber portion and a medicament chamber portion therewithin and having a single mouthpiece formed with passage means communicating respectively with said chamber portions; said housing being provided with an air exhaust port communicating with said first chamber portion and an air inlet port communicating with said medicament chamber portion; a rotor mounted within said housing; a drive portion on said rotor driven by said air flow through said first chamber portion; means for dispersing a medicament within said medicament chamber portion; and air flow control valve means for causing air flow through said first chamber portion and said exhaust port by exhalation through said mouthpiece to effect rotor movement and for causing air flow through said inlet port and said medicament chamber portion to effect entrainment of said medicament by inhalation through said mouthpiece.
Claim 3
Dependent Claim
143 words
An inhalation device comprising a housing having a first chamber portion and a medicament chamber portion therewithin and having a single mouthpiece formed with passage means communicating respectively with said chamber portions; said housing being provided with an air exhaust port communicating with said first chamber portion and an air inlet port communicating with said medicament chamber portion; a rotor mounted within said housing; a drive portion on said rotor driven by said air flow through said first chamber portion; means for dispersing a medicament within said medicament chamber portion; and air flow control valve means for causing air flow through said first chamber portion and said exhaust port by exhalation through said mouthpiece to effect rotor movement and for causing air flow through said inlet port and said medicament chamber portion to effect entrainment of said medicament by inhalation through said mouthpiece.
Claim 4
Dependent Claim
143 words
An inhalation device comprising a housing having a first chamber portion and a medicament chamber portion therewithin and having a single mouthpiece formed with passage means communicating respectively with said chamber portions; said housing being provided with an air exhaust port communicating with said first chamber portion and an air inlet port communicating with said medicament chamber portion; a rotor mounted within said housing; a drive portion on said rotor driven by said air flow through said first chamber portion; means for dispersing a medicament within said medicament chamber portion; and air flow control valve means for causing air flow through said first chamber portion and said exhaust port by exhalation through said mouthpiece to effect rotor movement and for causing air flow through said inlet port and said medicament chamber portion to effect entrainment of said medicament by inhalation through said mouthpiece.
Claim 5
Dependent Claim
19 words
A device according to claim 1 wherein said dispersing means is carried by said rotor within said medicament chamber.
Claim 6
Dependent Claim
23 words
A device according to claim 1 wherein said dispersing means comprises means on said rotor for mounting at least one capsule of medicament.
Claim 7
Dependent Claim
32 words
A device according to claim 1 wherein said dispersing means comprises means on said rotor for mounting a plurality of capsules of medicament in spaced relation about the axis of said rotor.
Claim 8
Dependent Claim
20 words
Apparatus according to claim 3 wherein said dispersing means comprises a replaceable unitary multiple capsule pack mounted on said rotor.
Claim 9
Dependent Claim
23 words
Apparatus according to claim 3 wherein a plurality of capsules of medicament are mounted on said rotor and form therewith a replaceable unit.
Claim 10
Dependent Claim
18 words
A device according to claim 3 wherein means is provided for opening a capsule carried by said housing.
Claim 11
Dependent Claim
37 words
A device according to claim 7 wherein the capsule opening means comprises a plunger manually movable between a rest position and an operative position in which it is adapted to penetrate a capsule carried by said rotor.
Claim 12
Dependent Claim
16 words
A device according to claim 8 wherein said plunger is spring biased toward its rest position.
Claim 13
Dependent Claim
22 words
Apparatus according to claim 1 wherein the drive portion on said rotor comprises a plurality of vanes in said first chamber portion.
Claim 14
Dependent Claim
35 words
Apparatus according to claim 1 wherein said valve means comprises a first non return valve controlling air flow through said exhaust port and a second non return valve controlling air flow through said inlet port.
Claim 15
Dependent Claim
15 words
Apparatus according to claim 11 wherein said non return valves are normally closed flap valves.
Claim 16
Dependent Claim
24 words
Apparatus according to claim 1 wherein said passage means comprises separate first and second passages communicating respectively with said first and medicament chamber portions.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-10 | 1978-09-09 | 1979-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-10 | 1982-09-09 | 1983-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-10 | 1986-09-09 | 1987-03-11 | $7700.00 | Window Closed / Lapsed |