| 摘要 |
A portable diagnostic instrument for use by medical professionals. The portable diagnostic instrument can comprise a circuit control that can maintain the output of the light intensity constant, even when battery power is reduced. The circuit control system can also comprise a warning system to provide information about remaining battery life to the user. Furthermore, the portable diagnostic instrument can comprise an otoscope further comprising a separate, folding magnifying lens assembly and a separate, folding specula assembly.
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