Has Neuralink Shown a Patient Controlling a Robotic Arm?

Granted, it's just a 30-second video clip. And, there’s as much detail missing as there is included. But Elon Musk’s Neuralink has posted a short teaser on X that suggests a human patient may have successfully used its brain chip to control a robot arm.

The neurotech firm posted the video without a written explanation, accompanied with a heart, robot arm and pen emoji. It doesn’t show who (or what) is controlling the machine. It only features a robotic arm holding a marker and slowly writing the word ‘CONVOY’ on a whiteboard. 

CONVOY is the name of Neuralink’s feasibility study into its N1 brain-computer interface (BCI) control using an investigational assistive robot arm. When it was approved and launched in November 2024, Neuralink said CONVOY is ‘an important first step towards restoring not only digital freedom, but also physical freedom’.

Neuralink’s latest post quickly gained traction on X. One user commented ‘I don’t think most people understand what’s happening here: Neuralink’s patient is controlling a robotic arm with his mind. Not a joystick, not a muscle sensor, just his thoughts’. 

Elon Musk, who founded Neuralink in 2016, replied directly to this post, saying ‘True’.

CONVOY: restoring autonomy

Neuralink aims to create a brain-computer interface – a computer-based system that acquires and analyses brain signals, translates them into commands, and sends them to external devices or software – that restores autonomy to those with unmet medical needs and disabilities.

Its research programmes and studies are critical to this development. CONVOY is focused on testing the ability of a human patient to control a robotic arm using Neuralink’s N1 brain implant. It is specifically designed to restore mobility for individuals with significant limb limitations like spinal cord injuries. 

CONVOY and another of the company’s studies, PRIME, are registered with the US Food and Drug Administration. 

The PRIME study opened in late 2023 and was Neuralink’s first investigational medical device trial. It aims to evaluate the safety and functionality of the company’s implant and surgical robot and involves placing the BCI into a part of the brain that plans movements. 

The device interprets a person’s neural activity, enabling them to interact with and control external devices like smartphones or computers. 

Redefining human capabilities

Inside its hermetically sealed biocompatible enclosure (capable of withstanding physiological conditions several times harsher than those inside the human body), Neuralink's N1 Implant holds state-of-the-art innovation.

It records neural activity via more than 1,000 electrodes across 64 threads and its low-power electronics process neural signals and transmit them wirelessly to the Neuralink application. This decodes the user’s brain activity and data into physical actions, allowing them to control a computer with just their thoughts. 

Because the implant’s threads are too fine to be inserted into the brain by the human hand, Neuralink has also developed a dedicated surgical robot to carry out the task. 

As of the start of 2025, three people have received Neuralink brain implants. The first, Noland Arbaugh, received a brain implant in January 2024 that allows him to remotely control the cursor on a laptop. 

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