PharmaJet’s needle-free injection technology is different than gas-powered technologies of the past.
Jet injection to deliver liquid medications has existed in various forms since the 1860s. In the 1950s the U.S. military developed their own high-speed models, or “jet guns”, for mass vaccination programs. Common features of such historic jet injectors were gas-powered energy sources combined with a multi-use nozzle interface. Both of these features led to inherent delivery problems, ranging from skin laceration to cross-contamination with blood-borne pathogens between patients. Due to these inherent problems, “multi-use nozzle jet injectors”, or ‘MUNJI guns’ ceased to be used by the U.S. Military in the 1990′s. (1)
The PharmaJet system utilizes a single-use, sterile, auto-disable needle-free syringe and a spring-powered energy source. This combination results in a gentle injection experience compared to prior injectors and in fact to needle-bearing syringes themselves.
1. Defense Logistics Agency; DPSC-M; December 9, 1997