The model itself is described in the following article:
Boudinet P. A New Dynamical Theory of Decompression. Advances in Research 17(1):1-20. 2018.
It is available here: http://www.journalrepository.org/media/journals/AIR_31/2018/Nov/Boudinet1712018AIR44062.pdf
We provide here a small C library corresponding to this model.