Because of its complexity it requires years of experience and skill on the part of any surgeon. "We thought this procedure would be a perfect proof of principle to show the accuracy of this technology," advised Couldwell.

The surgery is done frequently in order to expose typically benign tumors near auditory nerves for removal.


The drill can be set up to automatically shut off if it causes a reaction of nearby nerves. "If the drill gets too close to the facial nerve and irritation is monitored, the drill automatically turns off," said Couldwell.

The proof-of-concept procedure is far from the only one the robotic drill might be used for. "This drill can be used for a variety of surgeries, like machining the perfect receptacle opening in the bone for a hip implant," Couldwell observed.

The wide range of applications, as well as the significant time and cost reduction potential are also aspects that motivated Balaji to the work. “This technology could democratize health care by leveling the playing field, so more people can receive quality care," he stated.

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