Patent US3945383A successfully refreshed from Google Patents.
US3945383A
Expired / Lapsed
US
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Unit dose ampul for jet injector
Assignee: GlaxoSmithKline LLC
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Filing: 1974-08-08
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Granted: 1976-03-23
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Expires: 1994-08-08
Abstract
Abstract A unit dose ampul for a jet injector has a tube open at one end and an integral nozzle at the other end with a piston in the tube to seal the open end of the tube and to advance liquid in the tube through the nozzle. A sealing cap encompasses the nozzle and the forward end of the tube and is secured to the tube, the cap having a peripheral area of weakness adjacent the nozzle of the ampul whereby a portion of the cap can be broken off to expose the end of the nozzle. The cap has an interlocking portion for removably securing the cartridge to a jet injector.
Inventors
- 👤 Russell B. Bennett
- 👤 William Millicovsky
- 👤 Howard B. Pritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:47
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/30; A61J; A61J1/00; A61J1/05; A61J1/06; A61J1/062; A61M5/31; A61M2005/3103; A61M2005/3104; A61M2005/3117; A61M2005/3118; A61M2005/312
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
117 words
In a unit dose ampul containing medicament for a jet injector comprising a tube open at one end and having an integral nozzle at the other end and a piston in the tube to seal the open end of the tube and adapted to advance liquid in the tube through the nozzle, the improvement comprising: a sealing cap encompassing the nozzle and said other end of the tube and secured to the tube, the cap having a peripheral area of weakness encircling the nozzle whereby a portion of the cap can be broken off to expose the discharge end of the nozzle, and means integral with the cap for removably securing the tube to a jet injector.
Claim 2
Dependent Claim
117 words
In a unit dose ampul containing medicament for a jet injector comprising a tube open at one end and having an integral nozzle at the other end and a piston in the tube to seal the open end of the tube and adapted to advance liquid in the tube through the nozzle, the improvement comprising: a sealing cap encompassing the nozzle and said other end of the tube and secured to the tube, the cap having a peripheral area of weakness encircling the nozzle whereby a portion of the cap can be broken off to expose the discharge end of the nozzle, and means integral with the cap for removably securing the tube to a jet injector.
Claim 3
Dependent Claim
33 words
An ampul in accordance with claim 1 in which the cap has an enlarged portion between the securing means and the area of weakness to space the injector away from a patient's skin.
Claim 4
Dependent Claim
35 words
An ampul in accordance with claim 1 in which the securing means is a male portion of a bayonet joint adapted to cooperate with a female portion of a bayonet joint on a jet injector.
References Cited (Backward Citations)
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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) | 1979-03-23 | 1979-09-22 | 1980-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-23 | 1983-09-22 | 1984-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-23 | 1987-09-22 | 1988-03-23 | $7700.00 | Window Closed / Lapsed |