Yes; I have read the RMVS document; it is an interesting "spec", but I agree with John that there is no need (neither is there any time) to "re-invent the wheel".
For instance, it implies that monitoring (a display) is to be included. This introduces yet another layer of complication for prospective manufacturers, and I would have thought that stand-alone monitors should suffice. If necessary these could be obtained from other sources.
They (we) need to pick on an established design - I have suggested the Siemens Servo 900 C - then crank up production.
Meanwhile, ventilator nomenclature keeps changing ...
this .pdf may help.

Unknown Issues ... Battery backup ... Need the advice of an electronic engineer with military/resource limited experience before specifying anything here. It needs to be got right first time.