Unit dose ampul for jet injector
AssigneeSmithKline Corporation
InventorsRussell B. Bennett, William Millicovsky, Howard B. Pritz
Life of this patent
Estimating the term…
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.
Claims3
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.
Dependencies are inferred from the claim text.