Carbon Footprint of disposable pulse oximeters

Is anyone doing any work on looking at the carbon footprint of disposable and reusable pulse oximeters?  I'm supporting a colleague with a project swapping from disposable to reusable pulse oximeters in neonates.  I would like to identify the carbon footprint of recycling disposable pulse oximeters, which is a project she has just done.  I believe these are basically just smelted down, into the liquid metal component.  I will naturally use the carbon emissions for waste avoidance, but I'm also interested the manufacturing emissions and emissions from the metal recycling.  I could probably draw parallels to other electrical wires, if anyone has these please?

I would also like to calculate the carbon footprint of the reusable probes.  Although these would be a bit more robust and potentially a marginally higher manufacturing footprint, I presume I could probably use the same manufacturing footprint for both?  Then just divide it by the average number of uses for the reusable ones?

Thanks for any help anyone can provide