Replacing the CO 2 cartridge is a simple procedure, described in the Biojector instruction manual. The CO 2 never comes in contact with the medication. The Biojector Tank Adapter adds the convenience of a large CO 2 tank to the Biojector 2000 System. For mass immunization programs, such as for military troops, the Tank Adapter offers a major logistical advantage by eliminating the need to replace CO 2 cartridges. Bioject provides free in-service training to customers to ensure success.
Most patients fear the pain and discomfort of needle-based injections.
However, Bioject does not claim that its systems are painless. Some medications and vaccines, for instance, can cause burning and stinging sensations because of their formulations, which are independent of the injection method.