Finally, someone with some sense.

"It's a medical device akin to a syringe. We stopped using needles quite some time ago--a hypospray instead delivers medication via pressurized air."

The question is answered as Julian approaches, it hasn't been quite so busy this time around as last, but still there are enough people requiring attention that he's been on his toes all morning.

"I'm Doctor Julian Bashir," he introduces with a smile.