Slowly getting back into the swing of working on the project. Hopefully I'll be at full speed next week.
Here's the work I've done on the lab machinery in the small alcove to the left of the door:
To my knowledge, the first appearance of the lower portion of this set piece is "Operation: Annihilate!", seen here:
And it became a regular part of the medical lab in Seasons 2 and 3. Here's a shot of the thing from "The Lights of Zetar":
I'm not quite sure of the exact shape of the thing at the top, but a similar one can be seen in the engineering set (upper right portion of the screen):