PenJet® is a small, inexpensive, needle-less, disposable jet injector that delivers a single dose of medication. It is powered by self-contained compressed inert gas and is either shipped prefilled with a drug or filled prior to delivering a needle-less injection.
Ease of operation and low cost make PenJets® applicable for usages ranging from mass inoculations of entire populations to home delivery of pharmaceuticals by patients or their care-givers. PenJets® are available for needle-less subcutaneous, intradermal and some intramuscular injections. Dosage size can be as large as 0.5 ml or as small as 0.1 ml.
PenJet® Ergonomic Design
PenJet® one handed operation feels and functions like an ordinary syringe. Its patented fingersets are ergonomically designed for ideal hand positioning for either assisted or self administration of needle-less injections. To give a needle-less injection, pressure is exerted on the rear of the PenJet®, in the precise place the plunger is pushed on an ordinary syringe. Because of these similarities, users intuitively know how to use the PenJet® and have complete control over the administration of a needle-less injection.
PenJet® Patented Gas Power Supply
PenJets® self contained inert gas canisters are powered by nitrogen. Unlike carbon dioxide, nitrogen has a wide functional temperature range and can be kept refrigerated right up to injecting. PenJet® uses patented metal gas canisters with an in line valve to eliminate leakage causing underpowered injection commonly associated with plastic gas canisters. PenJets® can be stored for long periods of time and, unlike spring powered devices, repeatedly deliver identical injections.
PenJet® Lyophilized Delivery Systems
In addition to conventional liquid medications and vaccines, PenJets® can store, mix and administer needle-less injections of freeze-dried (lyophilized) drugs. This is particularly relevant to the increasing number of highly potent, biotechnologically derived proteins that require lyophilization to maintain shelf life.
PenJet® Filling Systems
Filling equipment is provided by PenJet® Corporation for small test runs and for full production. Its patented continuous feed, high-speed aseptic PenJet® automated filling system is anticipated to debut in 2003. PenJet® is a small, inexpensive, needle-less, disposable jet injector that delivers a single dose of medication. It is powered by self-contained compressed inert gas and is either shipped prefilled with a drug or filled prior to delivering a needle-less injection.
PenJet polycarbonate ampoules are an integral part of the device housing. They are filled in an aseptic environment fully assembled, ready for the inert gas canister which holds the delivery charge. The standard size PenJet® ampoule holds 0.5 ml. It is manufactured in gamma-sterilized polycarbonate.