US3565071A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-regulating therapeutic inhaler
Assignee: Abbott Laboratories
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Filing: 1968-09-19
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Granted: 1971-02-23
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Expires: 1988-09-19
Abstract
Abstract An inhaler for self-administration of a volatile drug for analgesic purposes and comprising a tubular body with a mouthpiece at one end for insertion into a patient''s mouth, an absorbent material within the tubular body for holding the liquid agent and a cap on the end of the tubular body opposite the mouthpiece, the cap having openings therein arranged to provide evenly distributed charging of liquid drug.
Inventors
- 👤 Sanford Cobb
- 👤 Dean Richard Katerndahl
- 👤 William Emmett Murphy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:35
CPC Classifications
A; A61; A61M; A61M15/00; A61M15/06; A61M2202/00; A61M2202/02; A61M2202/0241
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
211 words
A self-limiting inhaler for analgesic purposes and adapted for self-administration of a volatile drug by a patient, the inhaler comprising a substantially tubular body, a mouthpiece projecting from one end of the body, said mouthpiece having an elongated oblong portion with an inhalation orifice adapted for insertion into a patient''s mouth, absorbent liquid-retaining means for storing the volatile drug positioned within the tubular body along the walls thereof to thereby define a longitudinal passageway through the absorbent material, a first opening which may be covered by the patient''s finger to provide effective vapor concentration and positioned in the inhaler between the inhalation orifice of the mouthpiece and the end of the absorbent liquid retaining means proximate to the mouthpiece to permit the inhalation of relatively ineffective drug concentrations when said first opening is uncovered, retaining means positioned internally in the inhaler on the side of the first opening away from the mouthpiece to prevent the absorbent liquid-retaining means from obstructing the first opening or entering the mouthpiece, and a second opening positioned in the inhaler communicating with said longitudinal passageway to permit air inhaled through said second opening to pass through said longitudinal passageway and over substantially the entire surface of the absorbEnt liquid-retaining means when the first opening is covered.
Claim 2
Dependent Claim
211 words
A self-limiting inhaler for analgesic purposes and adapted for self-administration of a volatile drug by a patient, the inhaler comprising a substantially tubular body, a mouthpiece projecting from one end of the body, said mouthpiece having an elongated oblong portion with an inhalation orifice adapted for insertion into a patient''s mouth, absorbent liquid-retaining means for storing the volatile drug positioned within the tubular body along the walls thereof to thereby define a longitudinal passageway through the absorbent material, a first opening which may be covered by the patient''s finger to provide effective vapor concentration and positioned in the inhaler between the inhalation orifice of the mouthpiece and the end of the absorbent liquid retaining means proximate to the mouthpiece to permit the inhalation of relatively ineffective drug concentrations when said first opening is uncovered, retaining means positioned internally in the inhaler on the side of the first opening away from the mouthpiece to prevent the absorbent liquid-retaining means from obstructing the first opening or entering the mouthpiece, and a second opening positioned in the inhaler communicating with said longitudinal passageway to permit air inhaled through said second opening to pass through said longitudinal passageway and over substantially the entire surface of the absorbEnt liquid-retaining means when the first opening is covered.
Claim 3
Dependent Claim
123 words
The inhaler of claim 1 including a cap in the tubular body opposite the mouthpiece, said cap having the general configuration of a cup and providing the second opening, said cap comprising: a ring portion, the outside diameter of the ring corresponding to the inside diameter of the tubular body so that the cap may be inserted within the tubular body, a plate of lesser diameter than the ring affixed to the ring by a plurality of bridges, the ring, plate and bridges defining a plurality of arcuate openings through which liquid drug can be charged into the inhaler and through which air can be inhaled to pass over substantially the entire surface of the absorbent liquid-retaining means prior to reaching the mouthpiece.
Claim 4
Dependent Claim
33 words
The inhaler of claim 2 which includes a continuous lip projecting internally from the oblong portion of the mouthpiece into the tubular body to prevent passage of liquid drug into the oblong portion.
Claim 5
Dependent Claim
14 words
The inhaler of claim 3 wherein the absorbent liquid-retaining means comprises a rolled wick.
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) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |