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Robot cleaner a 'game changer' for hospital infection epidemic

Hospitals are supposed to be the place where the sick get well. They can also be where the sick get sicker, thanks to the virulentbacteria and viruses that live there.
At any given time, 1 in 20 hospital patients is battling an infection that they got on site, according to the Centers for Disease Control. Hospitals now paygreater attention to hand hygiene -- Purell dispensers have become ubiquitous -- but their main infection control methods haven't changed much for decades. Most rooms are still disinfected by housekeepersarmed with chemical cleaners.

Enter the Xenex, a mobile, robotic device that combats germs with blasts of light. It looks like Star Wars' R2D2 with a handle, but it's a killing machine -- if you'rea microorganism. Set it loose in a hospital room and it will chirp and click its way through a cleaning routine of strobe-like pulses. Those flashes are what's called "pulsed xenon UV," a type ofultraviolet light that sterilizes and kills microbiological contaminants.

Epidemiologists Julie Stachowiak and Mark Stibich developed the technology that powers the Xenex at the Houston TechnologyCenter. To commercialize the system, they needed to build a business. That's where Brian Cruver, a former Enron trader, came in. After starting his career at the company that became infamous for itscorruption -- a story Cruver told in the book Anatomy of Greed -- Cruver shifted his career toward entrepreneurship.

"I wanted to get involved with ventures that did some good," he says.
Cruver joinedXenex in 2009 as the company's CEO. The Austin-based venture now has 30 employees and has raised about $5 million from investors.
The Xenex disinfects a hospital room in about five to 10 minutes,focusing on high-touch surfaces like tray tables, telephones, and bedrails. After housekeepers finish cleaning a room, they wheel the machine in and hit go. "It's easier to use than a vacuum cleaner,"...
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