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Florida Hospital Shows Normal Internet Lag Time Won't Affect Remote Robotic Surgeries

Lucas123 writes: Remote robotic surgery performed hundreds or even thousands of miles away from the physician at the controls is possible and safe, according to the Florida Hospital that recently tested Internet lag times for the technology. Roger Smith, CTO at the Florida Hospital Nicholson Center in Celebration, Fla., said the hospital tested the lag time to a partner facility in Ft. Worth, Texas and found it ranged from 30 to 150 milliseconds, which surgeons could not detect as they moved remote robotic laparoscopic instruments. The tests, performed using a surgical simulator called a Mimic, will now be performed as if operating remotely in Denver and then Loma Linda, Calif. The Mimic Simulator system enables virtual procedures performed by a da Vinci robotic surgical system, the most common equipment in use today; it's used for hundreds of thousands of surgeries every year around the world. With a da Vinci system, surgeons today can perform operations yards away from a patient, even in separate but adjoining rooms to the OR. By stretching that distance to tens, hundreds or thousands of miles, the technology could enable patients to receive operations from top surgeons that would otherwise not be possible, including wounded soldiers near a battlefield. The Mimic Simulator was able to first artificially dial up lag times, starting with 200 milliseconds all the way up to 600 milliseconds.

12 of 125 comments (clear)

  1. Spikes by MyLongNickName · · Score: 4, Insightful

    Sounds good until you hit a latency spike. I'd hate to be getting sutured up and see the ping times climb to 2000 ms.

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    1. Re:Spikes by thedonger · · Score: 3, Interesting

      Sounds good until you hit a latency spike. I'd hate to be getting sutured up and see the ping times climb to 2000 ms.

      Maybe they should queue up sets of movements that are dependent. It would also suck if the internet connection dropped right after a cut but before the bleeding could be stopped. Although I'm sure they have physical staff present in case of emergency.

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    2. Re:Spikes by antiperimetaparalogo · · Score: 3, Insightful

      It would also suck if the internet connection dropped right after a cut but before the bleeding could be stopped. Although I'm sure they have physical staff present in case of emergency.

      They have, and they are not just for "emergency" - they prepare the patient, start the operation (including inserting -and hopefully removing- the laparoscop and the other surgical "tools"), and finish the job. Plus: usually they are those doing the actual operation, with the more expert doctor just observing, making suggestions, and performing *some* "cuts" that the less experienced doctors are not so confident doing.

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  2. What about severe lag? by sjbe · · Score: 4, Insightful

    Florida Hospital Shows Normal Internet Lag Time Won't Affect Remote Robotic Surgeries

    So what? It's not normal lag you are worried about. It's severe lag which on the normal internet you cannot guarantee you can eliminate. It's interesting information but I'm not sure if it's really useful information.

  3. Re:150ms?? by dmgxmichael · · Score: 3, Insightful

    I'm guessing it isn't noticeable because of how slowly and deliberately they move to begin with. Surgery isn't exactly a twitch reflexes exercise.

  4. Re:It's about time.... by drjoe1e6 · · Score: 5, Funny

    Next is holograms lawyers in courtrooms!!!

    Please state the nature of the legal proceeding...

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  5. Re:Just wait... by Em+Adespoton · · Score: 4, Interesting

    I have to admit, this one had me scratching my head.

    Don't medical safety guidelines always require safe handling of the *worst* case scenario, not the *average* case scenario? Hospitals have network outages, and have plans in place to mitigate that. How do you mitigate a surgeon losing link while he's cutting the right ventricle? When you're yards away and the link goes down, you just scrub in. When you're on the other side of the world....

  6. Cause of death? by meta-monkey · · Score: 4, Funny

    Wow. "How'd he die?" "Lag." Been true plenty of times in World of Warcraft, and now possible IRL.

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  7. Re:150ms?? by plover · · Score: 4, Interesting

    I read the article, thinking this was an incorrect claim in the summary. Nope, the article insists in several places that it was "undetectable" by the surgeons. Now, anyone who's played any online FPS knows that 50ms ping times are not only detectable, but are approaching unplayable because some punk kid that's only 10ms away from the server is always taking the head shots before you can even see him.

    So I figured there has to be something else. The best hypothesis I could come up with is the current robotic surgery tools introduce their own lag such that the surgeons were unable to distinguish normal device response times from network latency. That, and the goals of a surgeon are completely different from an FPS shooter. A surgeon isn't trying to race anything or anyone - they don't have to shoot first. In a live operating theatre, they are methodical and cautious. It's not like there are sudden surprises that leap out at them that they have to instantly react to. Even a burst blood vessel takes a few moments to assess and plan a recovery from. So maybe if they're used to very slow approach, the latency doesn't impact them as much.

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  8. Dear Prospective Patient... by seven+of+five · · Score: 5, Funny

    For your upcoming remote surgery, please note that fast Internet response times ensure an effective procedure with the best post-operative outcomes. Your insurance carrier, however, covers only basic Internet service. If you wish, you may elect to have faster guaranteed response times for an additional fee. Please select from one of the following four options:

    1. 500ms response time $500.00
    2. 250ms response time $750.00
    3 100ms response time $2000.00
    4. 50ms response time $5000.00

    Sincerely, AT&T
    We Appreciate Your Patronage

  9. Re:150ms?? by Anonymous Coward · · Score: 5, Funny

    I read the article, thinking this was an incorrect claim in the summary. Nope, the article insists in several places that it was "undetectable" by the surgeons. Now, anyone who's played any online FPS knows that 50ms ping times are not only detectable, but are approaching unplayable because some punk kid that's only 10ms away from the server is always taking the head shots before you can even see him.

    Uh...if you are worried about the patient moving faster than you, perhaps it would help if you sedated the patient before starting the operation?

  10. The brain adapts well to lag by wonkey_monkey · · Score: 3, Insightful

    The brain adapts very well to lag. If you rig up a button and a light, so the light lights up when you push the button, then gradually introduce a delay, the brain will - up to a certain point - adapt and you'll still think the button push and light are happening at the same time. Remove the delay without warning, and you'll be convinced that the light lit up before you pushed the button.

    Surgery isn't like a first-person shooter, cries of "but the lag!" notwithstanding. Surgeons aren't, for the most part, waiting for the right bit of aorta to bob into their crosshairs so they can jab it with a scalpel, nor are they competing against other surgeons to get the first stitch in.

    Of course spikes in lag - and connections dropping entirely - are a big concern. But I don't think anyone's suggesting hospitals all move to remote working just because they can just yet.

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