Frequently Asked Questions - Animal
If more than one shoot is necessary, there should be 2 prefilled ampoules available. The reset of the injector is not lavish. There are nurses, who can do this very quickly. Many dentists invest in 2 or 3 injectors, to safe time. 2 – 3 injectors prepared with prefilled ampoules are optimal for every treatment.
Is the word „edema“the correct characterisation? A swelling can be seen in very few cases, when the injection site is producing an allergic reaction on the preservatives of the local anaesthetic agent.
The Injectors trigger has a „press point“. This point has to be found and it’s position has to be trained. If you start pressing the trigger from this point, you will get a proper injection. The injector will not start producing uncontrolled movements, because the trigger will not perform two different movements.
Swelling is observed in a few cases, which might also be caused by the local anaesthetic itself (preservatives).
Bleeding usually does not occur. As with needle injections, INJEX might cause some damage to the uppermost capillaries. In rare cases, this might cause a pin-sized drop of blood to emerge at the injection site. This is especially the case if the patient has been taking medication to treat cardiovascular disease (e.g., Marcumar, ASS100 = time-released aspirin) or normal aspirin for pain relief.
The recommended basic dosage is 0.3 ml per injection. A second injection to prolong the effect can be administered at any time. The local anaesthetic dose is still lower than with a conventional syringe in spite of the second injection.
Less than 0.3 ml for the initial injection is not sufficient and the degree of anaesthesia is too low, just as with conventional infiltration anaesthesia.
The local anaesthetic becomes effective more quickly than after a conventional injection. The injected area is anaesthetized after just a few seconds
Injecting with INJEX provides a therapeutic window larger than with conventional infiltration anaesthesia due to the better distribution within the tissue.
It is recommended to use a probe to check the anaesthesia depth before commencing treatment. An additional injection may be administered if necessary.
Each ampoule of the INJEX system may be filled with max 0.3 ml of anaesthetic. A dose of 0.3 ml is recommended for dental applications.
The transporter adapter is a sterile disposable product and can be used only with one cylinder cartridge to prevent contamination as well as diminishing functionality. Dispose of the adapter when the medication cartridge is empty. The local anaesthetic may crystallize within the adapter if the same adapter is used with additional medication cartridges. This can impair the transfer to the INJEX ampoule.
A modified injection angle results in an enlarged medication injection point. This may lead to increased bleeding and risk of haematoma.
Medications licensed for subcutaneous use can be administered with the needle-free INJEX.
The main applications for the INJEX system at present are diabetes (subcutaneous administration of insulin), the prevention of thrombosis (by means of Heparin) and local anaesthesia (e.g. prior to venous catheterisation, prior to minor surgical procedures or for dental infiltration anaesthesia). Other applications for INJEX are the treatment of dupuytren´s disease or homeosiniatry. Please note the technical reports for these mentioned applications.
When applied correctly the injection with INJEX is virtually painless. The sensation can be described as a short slight pressure on the skin surface. As pain is felt individually one cannot state a general and obliging assertion. As fluid is pressed under the skin the patient will sense the injection with INJEX more or less, depending on the volume and the individual sensibility. Patients generally assesse the sting from a needle as more unpleasant than the injection with INJEX.
(literature review: DENNE et al., 1992, TEINTZ et al., 1991, RESMAN et al., 1985)
The micro orifice of the ampoule has a diameter of 0.18 mm. Currently, the thinnest needle has a comparatively thick diameter of 0.25 mm.
No. In order to guarantee sterility and function, the ampoules are intended to be used once only.
Bruising at the point of administration cannot be completely ruled out even with needle-free systems.
This can rarely occur in patients regularly taking anticoagulants for the treatment of cardiovascular diseases (e.g. Marcumar; ASS 100 = retarded Aspirin) or occasionally normal Aspirin to alleviate pain.
Smaller bruises can appear at the beginning due to insufficient or excessive pressing of the INJEX onto the skin.
No, the utilized materials are not suitable for autoclave treatment. Adapter, ampoules, and SiliTop are sterile products for single-use only. The injector, the reset box, and the transporter are designed for multiple-use and need not be sterilized since they are not in direct contact with the patient.