Is the injection with INJEX painless?

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.