The head-mounted microscope

Authors

  • Ting Chen MD,

    1. Department of Otolaryngology–Head and Neck Surgery, Fujian Provincial College of Fujian Medical University, Fuzhou, China
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  • Seth H. Dailey MD,

    Corresponding author
    1. Division of Otolaryngology–Head and Neck Surgery, Department of Surgery, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, U.S.A
    • K4/760 Clinical Science Center, 600 Highland Avenue, Madison, WI 53792-7395
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  • Sawyer A. Naze,

    1. Division of Otolaryngology–Head and Neck Surgery, Department of Surgery, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, U.S.A
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  • Jack J. Jiang MD, PhD

    1. Division of Otolaryngology–Head and Neck Surgery, Department of Surgery, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, U.S.A
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  • The authors have no funding, financial relationships, or conflicts of interest to disclose.

Abstract

Microsurgical equipment has greatly advanced since the inception of the microscope into the operating room. These advancements have allowed for superior surgical precision and better post-operative results. This study focuses on the use of the Leica HM500 head-mounted microscope for the operating phonosurgeon. The head-mounted microscope has an optical zoom from 2× to 9× and provides a working distance from 300mm to 700mm. The headpiece, with its articulated eyepieces, adjusts easily to head shape and circumference, and offers a focus function, which is either automatic or manually controlled. We performed five microlaryngoscopic operations utilizing the head-mounted microscope with successful results. By creating a more ergonomically favorable operating posture, a surgeon may be able to obtain greater precision and success in phonomicrosurgery. Phonomicrosurgery requires the precise manipulation of long-handled cantilevered instruments through the narrow bore of a laryngoscope. The head-mounted microscope shortens the working distance compared with a stand microscope, thereby increasing arm stability, which may improve surgical precision. Also, the head-mounted design permits flexibility in head position, enabling operator comfort, and delaying musculoskeletal fatigue. A head-mounted microscope decreases the working distance and provides better ergonomics in laryngoscopic microsurgery. These advances provide the potential to promote precision in phonomicrosurgery. Laryngoscope, 2012

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