Biojector® 2000

The Biojector® 2000 has FDA clearance for delivering intradermal, subcutaneous and intramuscular injections of liquid medication, including vaccines and other injected medications.

Since there is no needle, the Biojector® provides healthcare workers with an unparalleled level of protection against accidental needlestick injuries. In high-risk situations, such as delivering injections to patients known to be infected with HIV or Hepatitis, the Biojector® is an ideal injection system.

The Biojector® works by the same principle as all of Bioject’s needle-free injection systems: by forcing liquid medication through a tiny orifice that is held against the skin. This creates a very fine, high-pressure stream of medication that penetrates the skin, depositing medication in the tissue beneath.

The system has three components: a durable injection device, a disposable needle-free syringe, and a CO2 cartridge.


Unique Injector Design

The Biojector® 2000 injector is designed with rugged construction for use in professional healthcare settings. Each device is thoroughly tested and rated to deliver a guaranteed 120,000injections. The Biojector® was ergonomically designed for right or left handed users.


Intradermal Syringe

Intradermal injections are shallow, delivering medication between the layers of the skin. A successful intradermal injection creates a “wheal,” or raised bump on the skin.

This type of injection is very difficult to administer with a traditional needle because of the high level of skill and accuracy required. Since the layers of the skin are so thin, it is easy to accidentally punch through to the deeper subcutaneous layer when using a needle. Bioject’s prototype needle-free intradermal injection system may prove to be a faster and more repeatable method for administering this type of injection.

The intradermal layer may be a more effective location for the delivery of certain vaccines, particularly DNA-based vaccines. The reason for this is that the dermis has a higher concentration of antigen-presenting cells (APCs), an important part of the immune system that helps the body to form responses to infectious agents.

Although the intradermal layer has been known to be a more favorable site for vaccine delivery for some time, most vaccines are still delivered to the intramuscular or subcutaneous layers because intradermal injections are so difficult to administer in routine clinical practice. Bioject’s goal for its needle-free intradermal injection systems is to develop a reliable, repeatable method for quickly and accurately delivering injections to the intradermal layer.

Energy Source

The Biojector® 2000 is energized by a small CO2 cartridge. Each CO2 cartridge delivers between 10 and 15 injections with proper technique. Replacing the CO2 cartridge is a simple procedure, described in the Biojector® 2000 instruction manual. The CO2 never comes in contact with the medication.

The Biojector® 2000 Tank Adapter adds the convenience of a large CO2 tank to the Biojector® 2000 System.For mass immunization programs, the Tank Adapter offers a major logistics advantage by eliminating the need to replace CO2 cartridges.


Easy to Use

Using the Biojector® 2000 to deliver injections is easy. Just follow these simple steps (for full instructions, see Biojector® 2000 Instruction Manual):

  1. Draw medication into the syringe (if you are unsure of which Bioject Syringe to choose, check the Guide to Selection and Use of Biojector® Syringes, or call us +1 (208) 830 5448)
  2. Insert the syringe into the Biojector
  3. Using firm pressure at the injection site, hold the injector at a 90° angle.
  4. Press the blue actuator button.

Preferred by Patients


In numerous surveys conducted by Bioject, patients consistently prefer the Biojector® 2000 over needle-and-syringe. 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. For highly needle-phobic patients, such as small children, the B2000 has optional ‘Elephant Ears*,’ which can help reduce anxiety.

*The elephant ears are put on the device with the syringe sticking out through the elephants face, making the syringe look like a baby elephants trunk.

Product Specifications

  • Size: 8.5 inches (22 cm)
  • Weight: 20.5 ounces (580 grams)
  • Operation Temperature Range: 60°-100°F (14°-38° C)
  • Power Source: CO2 Cartridge
  • Injections per CO2 Cartridge: 10 – 15
  • Pressure Indicator: Yes
  • Syringe/Actuator Interlock: Yes
  • Recommended Service Interval: 18 months
  • Warranty: One year or 120,000 shots, whichever comes first.
  • Injection Depths: Intradermal, subcutaneous and intramuscular.