FWIW, ShareCG has some Poser-compatible hospital equipment models. They may also be offered here, on Rendo...

If you can 'bill' commercial expenses, take a look on eg CG Trader, key-word SURGEON.

They offer medical facilities and staff in sundry formats. OBJ would suit fixed props, but I noticed some staff in animated FBX format.

A caution: Scaling aside, some FBX models import as a single, 'rooted' model. Others as a zoo of sub-rigs. If latter, the first sub-rig in Poser Hierarchy is the posable one, and all kin should be parented to that ASAP. Poser really, really does not like a surfeit of sub-rigs in hierarchy root...