Ultrasonic extractor

Ultrasonic extractor with neuro-synaptic relay

An ultrasonic extractor

An ultrasonic extractor was a medical device used to remove small objects.

In 2374, Luther Sloan asked Doctor Julian Bashir to remove the neuro-synaptic relay he'd earlier put behind the doctor's right ear using an ultrasonic extractor. (DS9: "Inquisition")

The name of the device comes from the script. [1]