Harvard And Sony Built A Tiny Surgery Robot Inspired By Origami - SurgeZirc SA
Harvard And Sony Built A Tiny Surgery Robot Inspired By Origami / Photo file: Ravzgadget

Researchers from Harvard’s Wyss Institute and Sony have created a surgical robot that’s much smaller than many other such devices. They took inspiration from origami to build the mini-RCM, which is around the size of a tennis ball and weighs about the same as a penny.

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Wyss associate faculty member Robert Wood and Sony engineer Hiroyuki Suzuki built the mini-RCM using a manufacturing technique developed in Wood’s lab. Materials are layered on top of each other, then cut with a laser in a way that allows them to form a 3D shape — kinda like a kids’ pop-up book. Three linear actuators control the mini-RCM’s movements in multiple directions.

In a microscopic tracing test, the researchers found that the mini-RCM was 68 percent more accurate than a hand-controlled tool. The robot also successfully completed a mock version of a precise procedure in which a surgeon inserts a needle through an eye to “inject therapeutics into the tiny veins at the back of the eyeball.”

The mini-RCM was able to puncture a silicone tube that replicated the retinal vein (which is about twice as thick as a hair) without causing damage.

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It’ll likely be quite some time before the mini-RCM is truly ready for operating theaters. Because of its size and weight, it’d be easier to set up than many other surgical robots, some of which take up a whole room. The researchers suggest it’d be easier to remove it from a patient were there any complications during a procedure.

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