The Journal of Japan Society for Laser Surgery and Medicine
Online ISSN : 1881-1639
Print ISSN : 0288-6200
ISSN-L : 0288-6200
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Volume 10, Issue 2
Displaying 1-3 of 3 articles from this issue
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  • A New Semiconductor Laser Diode (SKL-101) for Pain Relief
    Itaru Ohara, Yoshio Taguchi
    1989 Volume 10 Issue 2 Pages 23-30
    Published: 1989
    Released on J-STAGE: September 24, 2012
    DOIhttps://doi.org/10.2530/jslsm1980.10.2_23
    JOURNAL FREE ACCESS
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    Laser irradiation was studied to alleviate pain by double blind method. Semiconductor GaAlAs laser diode (SKL ·101): light wave length 780 nm, output 10 mw, power density 1.4×102mJ/sec/cm2, continuous wave was used. Three types of probes, i. e., suction type, tube type and pen type were prepared. 62 patients with pain in the muscle, joint, tendon and nerve were subjeted to study. Irradiation was carried out 300 second 2-3 times a week. Group with laser irradiation was effective in 25 of 32 cases 78%, while group without laser irradiation was effective in 3 of 30 cases 10% The difference of both groups was statistically significant, khi-square test being 15.9 (p 0.01). Thermographic findings suggested changes of microcirculation was playing a role for pain relief.
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  • Transurethral Nd-YAG laser surgery with balloon endoscope for bladder tumor
    Hiroshi Asaoka
    1989 Volume 10 Issue 2 Pages 31-37
    Published: 1989
    Released on J-STAGE: September 24, 2012
    DOIhttps://doi.org/10.2530/jslsm1980.10.2_31
    JOURNAL FREE ACCESS
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    Endoscopic examination is necessary for Urologist to daily diagnosis and treatment. But, in case of severe hematuria, it was too difficult to observe the inside of bladder. Therefore, we developed the balloon cystoscope which was able to penetrate the laser light. Then, laser application for urological diseases was investigated fundamentally and clinically with a use of balloon cystoscope. For fundamental study, the rat liver was irradiated through either the balloon or conventionalmethod with Nd: YAG laser. In terms of laser coagulated area, there was no difference between two methods. In a clinical cases, transurethral laser surgery with balloon cystoscope was performed for superficial bladder cancer. Even though severe hematuria occurred, there was no problem to obaerve the bladder inside and confirm the tumor size and location. Thus laser surgery with balloon cystoscope proved to be effective treatment method for small tumors during hematuria. However, improvement of the instrument was necessary because of balloon destruction during manipulation or complicated ballon attachment.
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  • [title in Japanese]
    1989 Volume 10 Issue 2 Pages 39-65
    Published: 1989
    Released on J-STAGE: September 24, 2012
    DOIhttps://doi.org/10.2530/jslsm1980.10.2_39
    JOURNAL FREE ACCESS
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