Teleoperated Humanoid Robots Successfully Perform Surgeries for First Time

What did the UC San Diego team actually do?

Researchers at the University of California San Diego have completed the first known surgeries performed by teleoperated humanoid robots, according to a study published this week in Nature. The team ran two procedures during a preclinical trial on large non-primate mammals. In the first, a humanoid robot paired with a human surgeon acting as assistant completed a cholecystectomy, the surgical removal of the gallbladder. In the second, two humanoids worked side by side with no human surgeon on the sterile field. Both procedures succeeded.

The researchers chose cholecystectomy deliberately. It is one of the most common general surgery procedures, but it demands dexterous instruments with wrist-like articulation for fine dissection. That combination makes it a reliable benchmark for evaluating surgical performance, whether the operator is a resident, an experienced attending, or a robot controlled remotely by a physician.

The full proof-of-concept project is documented at humanoid-surgeon.github.io, and the peer-reviewed paper is available at Nature.

Why humanoids instead of a dedicated surgical robot?

The dominant surgical robots on the market, Intuitive Surgical's da Vinci system and Stryker's Mako arm, are purpose-built for specific procedures. They are large, heavy, and typically bolted into a single operating room. That works well in well-funded hospitals with high procedure volumes, but it creates real barriers everywhere else.

The UCSD team's argument is that a general-purpose humanoid robot does not need a specially constructed OR or a large support crew. It can be redeployed across tasks, which matters enormously in rural hospitals, military field settings, or remote locations where building out dedicated robotic infrastructure is not financially realistic.

A versatile humanoid that can be shipped to a rural clinic or a battlefield represents a fundamentally different access model than a multi-million-dollar fixed surgical system.

Shanglei Liu, an assistant professor of surgery at UCSD School of Medicine who teleoperated the robot during the study, stated directly that the precision of a teleoperated humanoid matched that of a teleoperated dedicated surgical system, at a fraction of the cost and a fraction of the floor space. That claim, if it holds up across broader trials, has serious implications for how hospitals and health systems think about capital equipment procurement.

What are the limits of this research right now?

This was a preclinical trial. The procedures were performed on animals, not human patients, and the robots were teleoperated throughout, meaning a physician was actively controlling every movement in real time. Fully autonomous surgical humanoids are not what this paper demonstrates. The researchers describe this as a proof-of-concept first step, with the near-term vision being humanoids that assist during procedures before eventually performing them under teleoperation.

Regulatory clearance for any human surgical application would require a separate, lengthy process. The FDA pathway for a novel robotic surgical platform is not short, and the humanoid form factor introduces questions about liability, failure modes, and sterile field management that dedicated systems have spent years working through.

Still, the publication in Nature signals that the scientific community considers the underlying result credible enough to warrant serious attention. For the humanoid robotics sector, which has spent most of its public narrative on warehouse and manufacturing use cases, a peer-reviewed surgical milestone opens a conversation about medical applications that was largely theoretical until now.

Who is affected and what comes next?

The most immediate audience is the surgical robotics market, currently dominated by Intuitive Surgical. A credible humanoid alternative, even one years from clinical use, introduces competitive pressure and forces a conversation about whether the next generation of surgical robotics looks more like a general-purpose platform than a single-purpose machine.

For humanoid robot developers, the UCSD result is a concrete data point that their platforms can meet the precision demands of one of medicine's most exacting environments. That matters for fundraising, partnerships, and the broader argument that humanoids belong outside the warehouse.

Michael Yip, a faculty member in UCSD's Department of Electrical and Computer Engineering and a senior author on the paper, framed the longer-term goal around access: remotely operated and autonomous humanoid robots could extend critical surgical care to patients who currently have no realistic path to it, both in the United States and globally. The next steps will likely involve expanded animal trials, refinement of the teleoperation interface, and early conversations with regulators about what a human trial pathway could look like.