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AssigneeWelch Allyn, Inc.
InventorsRaymond A. Lia, Steven R. Slawson, Robert L. Vivenzio, John R. Strom, Michael T. McMahon, David G. Perkins, Kenneth V. Coon, Paul DeLucia, Richard H. Weitzel, Thaddeus J. Wawro, Scott Andrew Martin, Lei Guo, David M. Babson
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An instrument head is provided for attachment to a plurality of instrument handles having different power profiles. The instrument head contains an illumination assembly including at least one LED as well as a drive circuit for detecting a power profile of an attached instrument handle and converting variable voltages received from the attached instrument handle to a constant current for powering the at least one LED based on the power profile. Accordingly, the instrument head enables use with a plurality of instrument handles, including those originally configured for use only with incandescent light sources.
A medical instrument comprising:
A method for centering a patient's eye relative to an optical system of an ophthalmoscope, the ophthalmoscope comprising an instrument head, the optical system including an objective lens disposed at a distal end of the instrument head, the method comprising:
A method for manufacturing a medical diagnostic instrument, the instrument including an instrument head having an interior, an optical system comprising an objective lens disposed at a distal end of the instrument head, and an illumination system comprising a light source, the method comprising:
Dependencies are inferred from the claim text.