US3662930A
Expired / Lapsed
US
⏱️ 0.0 years remaining
A dispenser for powdered medicaments
Assignee: Wyeth LLC
•
Filing: 1970-06-30
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Granted: 1972-05-16
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Expires: 1990-06-30
Abstract
Abstract The disclosure is directed to an improvement in a dispensing package for adding a supplemental medicine to a parenteral solution container which is characterized by a plug disposed between the medicament reservoir and the discharge conduit. The plug has a labyrinth through which solid medicament must pass on discharge. The function of the labyrinth is to prevent the additive powder from being spilled or misdistributed out of the package as the package is being brought into functional engagement with an intravenous solution bottle.
Inventors
- 👤 Eugene J Meierhoefer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:48
CPC Classifications
A; A61; A61J; A61J1/00; A61J1/14; A61J1/20; A61J1/2089; A61J1/2003; A61J1/2006; A61J1/201
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
61 words
A dispensing package for powdered medicaments to be added to a parenteral solution prior to parenteral administration comprising: A. A reservoir adapted to contain a medicament; B. A conduit connected to said reservoir, and adapted to convey said medicament from said reservoir to a parenteral solution container; C. A fluid guide structure disposed in said conduit, said fluid guide structure having
Claim 2
Dependent Claim
61 words
A dispensing package for powdered medicaments to be added to a parenteral solution prior to parenteral administration comprising: A. A reservoir adapted to contain a medicament; B. A conduit connected to said reservoir, and adapted to convey said medicament from said reservoir to a parenteral solution container; C. A fluid guide structure disposed in said conduit, said fluid guide structure having
Claim 3
Dependent Claim
27 words
A conical surface with its apex directed toward said medicament, the slope of said conical surface being greater than the angle of repose of said medicament; and
Claim 4
Dependent Claim
27 words
A conical surface with its apex directed toward said medicament, the slope of said conical surface being greater than the angle of repose of said medicament; and
Claim 5
Dependent Claim
17 words
First and second septa connected to said fluid guide structure and engaging interior surfaces of said conduit.
Claim 6
Dependent Claim
17 words
First and second septa connected to said fluid guide structure and engaging interior surfaces of said conduit.
Claim 7
Dependent Claim
17 words
First and second septa connected to said fluid guide structure and engaging interior surfaces of said conduit.
Claim 8
Dependent Claim
17 words
First and second septa connected to said fluid guide structure and engaging interior surfaces of said conduit.
Claim 9
Dependent Claim
48 words
A dispensing package as defined in claim 1 wherein each of said first and second septa have a ridge defined on their outer surfaces and said conduit has a groove defined on its inner surfaces adapted to be engaged by said ridges on said first and second septa.
Claim 10
Dependent Claim
52 words
A dispensing package as defined in claim 1 wherein said fluid guide structure further comprises a plurality of septa and said conduit further comprises a substanTially planar surface adapted to be sealably engaged by said plurality of septa and said planar surface together with said plurality of septa define an elongated passageway.
Claim 11
Dependent Claim
24 words
A dispensing package as defined in claim 3 wherein the length of said passageway is at least five times the height of said passageway.
Claim 12
Dependent Claim
21 words
A dispensing package as defined in claim 3 wherein said septa are of substantially semicircular configuration centered about a common axis.
Claim 13
Dependent Claim
37 words
A dispensing package as defined in claim 3 wherein the ratio of the height of said passageway to the length of said passageway is less than the tangent of the angle of repose of said powdered medicament.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-16 | 1975-11-15 | 1976-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-16 | 1979-11-15 | 1980-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-16 | 1983-11-15 | 1984-05-16 | $7700.00 | Window Closed / Lapsed |