I strongly believe that this subtle change in the description of how the G4 works is very significant. It appears that CDEx is no longer claiming the use of spectral reflection, instead they are now claiming UV absorption.
What is claimed in their patent is spectral reflection:
"The photoelectric detection processes include Raman scattering, fluorescence and spectral reflection ..."
In their latest PR they have a new description of the detection processes. They're now claiming:
"ValiMed solutions rely on a unique combination of specialized spectroscopic measurement techniques -- including Raman, UV absorption and molecular fluorescence -- to accurately analyze, identify and determine the concentration of a drug/dose within seconds."
Why the change? Simple, they couldn't get it to work using spectral reflection. They had to go back to UV absorption, the same technique they used in the past which requires a cuvette to accurately measure drug concentration.
As I've said before, there's no way they're going to toss a vial, syringe, bag or whatever into the device and measure drug concentration- way, way too many varibles influencing accuracy.
Of course, this is what I believe to be true, others may think differently and be wrong. LOL
