US5346481A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vaccine delivery system
Assignee: Merck and Co Inc
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Filing: 1993-10-14
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Granted: 1994-09-13
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Expires: 2013-10-14
Abstract
Abstract A disposable vaccine delivery system containing a single dosage vaccine, having a compressible "hour-glass" shaped container portion filled with a needle, containing the vaccine, enclosed in a rigid clamp assembly having syringe-type activation means for compressing and expelling the vaccine contents into the human subject.
Inventors
- 👤 Leonid Bunin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:22
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/28; A61M5/281; A61M5/282
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
99 words
A vaccine delivery system suitable for human or animal administration comprising a single dosage hypodermic syringe having an "hour-glass" shaped container portion made of plastic, said container portion sized so that the air and the minor drop of contents ejected during aspiration is equivalent in volume to the lower half of the "hour-glass" shaped container; a needle portion comprising a hollow sharp needle extending from one neck of the plastic container portion and a rigid clamp assembly means fitted with plunger means at the other end which can be slidably moved over the container portion expel the container contents.
Claim 2
Dependent Claim
99 words
A vaccine delivery system suitable for human or animal administration comprising a single dosage hypodermic syringe having an "hour-glass" shaped container portion made of plastic, said container portion sized so that the air and the minor drop of contents ejected during aspiration is equivalent in volume to the lower half of the "hour-glass" shaped container; a needle portion comprising a hollow sharp needle extending from one neck of the plastic container portion and a rigid clamp assembly means fitted with plunger means at the other end which can be slidably moved over the container portion expel the container contents.
Claim 3
Dependent Claim
21 words
The system of claim 1 in which the container portion is disposable and made of a thermoformed plastic compatible with medication.
Claim 4
Dependent Claim
18 words
The system of claim 2 in which the container portion is made of PVC, polypropylene or PET/polyethylene laminate.
Claim 5
Dependent Claim
19 words
The system of claim 1 in which the rigid clamp assembly is multiuse and made of a moldable plastic.
Claim 6
Dependent Claim
14 words
The system of claim 4 which the clamp assembly is made of Delrin polyester.
Claim 7
Dependent Claim
43 words
The system of claim 5 in which the clamp assembly has a flat surface to receive the container portion, fitted on one end with a snap collar to engage the neck of the container portion and having plunger means at the other end.
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) | 1997-09-12 | 1998-03-14 | 1998-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-09-12 | 2002-03-14 | 2002-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-09-12 | 2006-03-14 | 2006-09-13 | $7700.00 | Window Closed / Lapsed |