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  • September 11, 2007 at 11:45 pm #2989 Reply

    zendentist
    Spectator

    Does anyone use their diode in a non contact optical fashion for cutting tissue? This is becoming an increasingly hot topic with manufacturers releasing 940 and 980 nm units; my personal experience isthe diode is primarily a contact unit for cutting due to the surface char that forms in non-contact mode. Opinions, please!

    September 13, 2007 at 3:42 pm #7867 Reply

    Anonymous
    Guest

    Don't have a diode anymore but I'd agree with you a diode is a diode is a diode…AKA hot glass.

    September 13, 2007 at 3:55 pm #7871 Reply

    zendentist
    Spectator

    That's been my opinion for quite a while, Ron, but I just wanted to check and see if I've been missing anything. IMHO, a diode's greatest advantage is the fact you can pick it up and carry it around, not unlike Dino…

    September 13, 2007 at 6:17 pm #7874 Reply

    DinoDMD
    Spectator

    What are you talking about Zen? I can be picked up and carried around very easily.
    Just ask Cletus! biggrin.gif

    September 13, 2007 at 8:28 pm #7872 Reply

    zendentist
    Spectator

    That was what I meant, Diode…er, Dino ; )

    September 14, 2007 at 3:48 pm #7875 Reply

    Glenn van As
    Spectator

    HI guys…….first post on the new forum. I cant believe that a diode will work in non contact unless you bump up the power and dont initiate the tip.

    I use non contact for things like apthous ulcers, clotting after extractions and for dark hemangiomas on lips.

    As for actually cutting tissue, how does that work?

    PS you gotta have good vision (read magnification) to do this as these fibers are close to the resolution of the human eye (200 microns is the resolution, most fibers are clear and 300 microns) and that wont make it easy to keep it non contact.

    Just my thoughts on this…..

    Glenn

    September 19, 2007 at 1:34 pm #7873 Reply

    zendentist
    Spectator
    (Glenn van As @ Sep. 13 2007,12:48)
    QUOTE
    HI guys…….first post on the new forum. I cant believe that a diode will work in non contact unless you bump up the power and dont initiate the tip.

    I use non contact for things like apthous ulcers, clotting after extractions and for dark hemangiomas on lips.

    As for actually cutting tissue, how does that work?

    PS you gotta have good vision (read magnification) to do this as these fibers are close to the resolution of the human eye (200 microns is the resolution, most fibers are clear and 300 microns) and that wont make it easy to keep it non contact.

    Just my thoughts on this…..

    Glenn

    But, Glenn, all the new 940 and 980 nm manufacturers claim that their improved absorption allows non-contact cutting. So it has to be true, right?

    September 20, 2007 at 4:36 pm #7877 Reply

    Kenneth Luk
    Spectator

    Yes, I've cut tissue in non contact mode with 400um fiber with my 30W diode. Did a congnenital epulis ( 5mm x 12mm ) on upper right c and d ridge on a 19 day old baby girl. Cut on the specimen looked as raw as a scapel cut. I'm trying to get a histological view on the excision site. you can hardly see the wound on 2 days post-op Will keep you posted.
    Ken

    September 20, 2007 at 11:48 pm #7868 Reply

    Anonymous
    Guest
    (Kenneth Luk @ Sep. 20 2007,12:36)
    QUOTE
    Yes, I've cut tissue in non contact mode with 400um fiber with my 30W diode. Did a congnenital epulis ( 5mm x 12mm ) on upper right c and d ridge on a 19 day old baby girl. Cut on the specimen looked as raw as a scapel cut. I'm trying to get a histological view on the excision site. you can hardly see the wound on 2 days post-op Will keep you posted.
    Ken

    Ken, you know we want to see some video on this. wink.gif

    September 21, 2007 at 4:26 am #7880 Reply

    Kenneth Luk
    Spectator

    Hi Ron,
    The ones I’ve done well are always not recorded! Here’are the photos anyway .Ken

    post-6-49484-epulis.DPL.jpg

    September 21, 2007 at 10:09 am #7878 Reply

    Kenneth Luk
    Spectator

    Laser treatment time:34secs
    No post-op analgesics required
    Baby response was uneventful.
    Will take 7 days post-op next wk.
    Ken

    October 1, 2007 at 1:31 am #7876 Reply

    Glenn van As
    Spectator

    Hey Ken……..great photos. Really neat. I think its cool that you can do this. I dont think that other diodes have the short gated pulse or the high power that you are using. I am also not sure that its for the inexperienced (not you because you know a ton) to use those high wattages .

    Cool case. Post some more on here……I am intrigued.

    Glenn

    October 2, 2007 at 3:28 pm #7879 Reply

    Kenneth Luk
    Spectator

    Hi Glenn,
    Thanks for the compliment. In fact, there’s a setting named Epulis on the touch screen.
    Here’s a 1 wk post-op. Biopsy confirmed as congenital epulis.
    Ken
    post-6-38928-Isabella_7_days.jpgIsabella_cropped_jpeg.jpg

    August 21, 2008 at 7:12 pm #7870 Reply

    mkatz
    Spectator

    photos have disappeared… repost?

    August 21, 2008 at 11:11 pm #7869 Reply

    admin
    Spectator
    mkatz;53946 wrote:
    photos have disappeared… repost?

    Imported pix.

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