Nanoscale Surgical Robot NanoSurgeon Completes First Animal Trial: Microvascular Repair on Rabbit Retina
The University of Zurich's NanoSurgeon nanoscale surgical robot successfully repaired 0.1mm diameter microvasculature on a rabbit retina, achieving precision at the single red blood cell level.
On August 13, 2028, the University of Zurich published a paper in Science Robotics reporting that its NanoSurgeon nanoscale surgical robot successfully performed retinal microvascular repair in animal experiments.
NanoSurgeon consists of a magnetically controlled micro-manipulator 0.8mm in diameter and an external magnetic field control system. Surgeons control the external magnetic field via joystick, which drives the micro-manipulator to move within the eye. The nanoscale tools at the manipulator's tip can perform cutting, suturing, and injection.
In experiments, NanoSurgeon repaired damaged microvasculature on a rabbit retina measuring just 0.1mm in diameter — equivalent to the diameter of a single red blood cell. Surgical precision reached the micrometer level, far exceeding the limits of human hand operation.
The research team said NanoSurgeon's potential applications include retinal surgery, cochlear implantation, and brain microvascular surgery. Human clinical trials are expected to begin in 2030.
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