Archive for the ‘ROBOTICS’ Category


Monday, April 4th, 2011

Hospitals use robots to push prostate surgeries

No, this is not a body dismembering device

Want to see a high-pressure sales pitch? Don’t visit a car dealer… just visit a hospital with a prostate-chopping robot.

It slices… it dices… it brings in money like nobody’s business — and who cares if it performs operations no one actually needs?

A new study shows how hospitals that spend big on robots do more surgeries than ever before — so many that they must be putting those machines to work overtime.

Good thing robots don’t have unions!

Researchers tracked robot purchases at 554 hospitals and treatments given to 30,000 men between 2001 and 2005, and found that hospitals that buy the machines do 29 more surgeries in the first year alone — a huge jump when you consider that many only did between 100 and 150 a year in the first place.

Meanwhile, hospitals that don’t buy robots actually do five fewer surgeries in that same year.

It’s not because they’re losing business to robots — surgeries were actually DOWN overall during the study period, according to the research in Medical Care.

It’s because hospitals are pushing robo-surgery on any man with prostate cancer — and you don’t even have to walk through the door to hear the sales pitch.

In addition to the millions spent on the machines, hospitals with robots spend big on marketing campaigns that rival those of the car dealers I mentioned earlier: blaring radio ads and obnoxious TV adverts.

Some hospitals even bring their robots to shopping malls for passers-by to “oooh” and “aaaah” over.

But here’s what you won’t hear during that marketing blitz: There is zero evidence — and I mean absolutely no evidence at all — that men who are treated with robots have better outcomes.

And there’s plenty of evidence that prostate surgeries — done by humans and robots alike — can lead to a nightmare battle with lasting and even permanent side effects, including incontinence and impotence.

It’s the same story with most other cancer treatments, prostate and otherwise — we treat more cancer “survivors” than ever before… but haven’t changed the survival rate.

Sourced & published by Henry Sapiecha


Tuesday, February 8th, 2011

Gesture-controlled computers

and robotic nurses being

developed for operating rooms

By Ben Coxworth

12:37 February 7, 2011

Although surgeons need to frequently review medical images and records during surgery, they’re also in the difficult position of not being able to touch non-sterile objects such as keyboards, computer mice or touchscreens. Stepping away from the operating table to check a computer also adds time to a procedure. Researchers from Indiana’s Purdue University are addressing this situation by developing gesture-recognition systems for computers, so that surgeons can navigate through and manipulate screen content simply by moving their hands in the air. The system could additionally be used with robotic scrub nurses, also being developed at Purdue, to let the devices know what instruments the surgeon wants handed to them.

The system incorporates a Microsoft Kinect camera (yes, from the gaming system) and specialized algorithms to recognize hand gestures as instructions.

“One challenge will be to develop the proper shapes of hand poses and the proper hand trajectory movements to reflect and express certain medical functions,” said Juan Pablo Wachs, an assistant professor of industrial engineering. “You want to use intuitive and natural gestures for the surgeon, to express medical image navigation activities, but you also need to consider cultural and physical differences between surgeons. They may have different preferences regarding what gestures they may want to use.”

There are also other considerations that the researchers are taking into account in the design of the system. For instance, they don’t want surgeons to be required to wear special types of gloves or colors of clothing in order for their hands to be “read.” The system should also be able to recognize and respond to gestures quickly, and provide confirmation that it understands the request. At the same time, however, it should not accidentally respond to extraneous gestures, such as those made to colleagues in the room.

The Purdue team also want the system to be relatively inexpensive, and to be quickly and easily adaptable to different operating rooms, lighting conditions, and other variables.

The system could be particularly effective when combined with the robotic scrub nurses, although they wouldn’t be intended to replace human nurses in all situations. “While it will be very difficult using a robot to achieve the same level of performance as an experienced nurse who has been working with the same surgeon for years, often scrub nurses have had very limited experience with a particular surgeon, maximizing the chances for misunderstandings, delays and sometimes mistakes in the operating room,” Wachs said. “In that case, a robotic scrub nurse could be better.”

While other groups have also researched the use of robotic scrub nurses, Wachs claims that his is the first to look into the incorporation of gesture – instead of voice – recognition. The Purdue system is also apparently unique in that it uses advanced algorithms to predict where the surgeon’s hands will be next, or what screen images will next be requested.

Sourcd & published by Henry Sapiecha