Robotic System Remotely Operates Ventilators in COVID-19 Wards

A new robotic system allows medical staff to remotely operate ventilators and other bedside machines from outside intensive care rooms of patients suffering from infectious diseases.

Developed at Johns Hopkins University (JHU; Baltimore, MD, USA) and Johns Hopkins Medicine (JHM; Baltimore, MD, USA), the robotic device is affixed to the ventilator's touch screen with a horizontal bar that is secured across the top edge. The bar serves as a stationary track for the back-and-forth movement of two connected vertical bars that extend the full height of the screen. As the vertical bars sweep across the screen, a stylus they carry moves up and down according to its commands, similar to how an Etch A Sketch moves its drawing tool along an X-Y axis.

A camera connected to the top bar sends an image of the screen to the operator's tablet outside the room. The system is still being tested, but in initial trials at the Johns Hopkins Hospital biocontainment unit, a tablet was used to remotely change oxygen percentage and volume delivered by a ventilator to a mannequin in an adjoining room. According to the developers, the robotic system can be deployed to help hospitals preserve protective gear, limit staff exposure to COVID-19, and provide more time for clinical work.

“Routine adjustments typically take just a couple minutes inside a room. But putting on and removing gear added an additional six minutes to the process. Doing that 10 times in a single shift steals an entire hour that could have been spent delivering patient care,” said respiratory therapist Jonathan Cope, who assisted with the project. “This remote-control system will be a force multiplier for our frontline clinicians. Being able to save time to deliver more care to more patients will pay huge dividends when we face massive patient surges during pandemicsm.”

The COVID-19 pandemic spurred a surge of highly infectious patients requiring ventilators, infusion pumps, and other equipment. Treating such intensive care patients requires personnel to don and doff personal protective equipment (PPE) every time, even for minor adjustments to machines. The process burns through limited supplies, and also wastes valuable time and personnel as the procedure requires an additional person to assist with the changing of gowns, gloves, masks, and other gear.

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