An exoscalpel

The exoscalpel was a precision surgical instrument, and the medical version of a laser scalpel. It employed laser beams to make an incision in skin or other tissue. After completion of surgery, a dermal regenerator could be used to repair the cut tissue.

An exoscalpel was used during the surgery to replace Lieutenant Worf's spinal column in 2368. (TNG: "Ethics")

The exoscalpel was a standard medical tool aboard the USS Prometheus in 2374. (VOY: "Message in a Bottle")

Exoscalpels have been seen in a wide variety of sizes and configurations. The exoscalpel prop depicted has been used in a variety of different applications, such as that of a scanner device in TNG: "The Host".
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