The University of Twente revealed its latest version of world’s most accurate 3D-printed biopsy robot during the Surgical Robot Challenge at the international Hamlyn Symposium in London. The robot is named Sunram 5 and is faster and accurate than its previous self.
Today, most breast biopsies are performed by handheld needles under sonographic guidance, based on previous radiological films. But, many a time the needle placement is not perfect because what was seen on MRI or mammography may look quite different on sonography. Coupled with human error, this may create serious problems such as a malignant lesion may be reported as benign.
MRI scanners are unparalleled in terms of locating lesions, and it would be perfect if a biopsy is taken under their guidance. This would though require a robot small enough to fit beside the patient under MRI robot that could fit. The robot should also be made of a material not influenced by strong magnetic field created by MRI.
Researchers at the Twente University, Netherlands, have tailor-made a robot to above specification. The robot is very small and easily fit under the breast compression device. It is powered by air pressure maintained through external pumps, which also enables it to be under operator control. It is made up of hard plastic except for the MR-conditional needle itself.
The dual speed motors in the updated model have improved the speed so as the robot can reach its target location in about 10 seconds. In case of any technical mishap, a safety mechanism in the device retracts the needle from the breast.
Here is the video showing how the new robot works.
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