In this way, they know where their robotic fingers are in space and how close these fingers are to each other.
Thus, they look into monitors to match their finger movements with those of the telerobotic fingers. To move their robotic fingers precisely, surgeons rely on live streaming of visual information from cameras fitted on telerobotic arms.
Also, the tiny size of the robotic fingers means that surgeries are possible with much smaller incisions since surgeons need not make large cuts to accommodate for their hands in the patient’s body during operations. By controlling robotic fingers with movements of their own fingers, surgeons can perform intricate procedures remotely, thus expanding the number of patients that they can provide medical attention.
Robot-assisted surgical systems, also known as telerobotic surgical systems, are physical extensions of a surgeon. “With our design, surgeons will be able to get an intuitive sense of how far their robotic fingers are from contact, information they can then use to touch fragile structures with just the right amount of force.” “One of the challenges with robotic fingers is ensuring that they can be controlled precisely enough to softly land on biological tissue,” said Hangue Park, assistant professor in the Department of Electrical and Computer Engineering. The researchers said that this technique might be an effective way to help surgeons reduce inadvertent injuries during robot-assisted operative procedures. This insight enabled users to control their robotic fingers precisely enough to gently land on fragile surfaces. In a new study published in the January issue of the journal Scientific Reports, researchers at Texas A&M University show that by delivering small, yet perceptible buzzes of electrical currents to fingertips, users can be given an accurate perception of distance to contact. While surgical cameras have improved what surgeons see during operative procedures, the “steady hand” remains to be enhanced - new surgical technologies, including sophisticated surgeon-guided robotic hands, cannot prevent accidental injuries when operating close to fragile tissue. Steady hands and uninterrupted, sharp vision are critical when performing surgery on delicate structures like the brain or hair-thin blood vessels.
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