Diseases of the nose and throat; a text-book for students and practitioners . ch better, therefore, to use reflected artificial light, whenthe luminous point should be nearly on a level with the patientsear and a little behind it. If the light be a strong one, such as RHINOSCOPY—EXAMINATION OF THE NASAL PASSAGES. 17 the lime-light, it may be conducted througli a tube passing overthe operators shoulder and opening near the patients nose(Fauvel and Mackenzie). A small incandescent lamp may beattached to the front of a head-band (photophore), by which thelight is thrown directly to the pointdesir
Diseases of the nose and throat; a text-book for students and practitioners . ch better, therefore, to use reflected artificial light, whenthe luminous point should be nearly on a level with the patientsear and a little behind it. If the light be a strong one, such as RHINOSCOPY—EXAMINATION OF THE NASAL PASSAGES. 17 the lime-light, it may be conducted througli a tube passing overthe operators shoulder and opening near the patients nose(Fauvel and Mackenzie). A small incandescent lamp may beattached to the front of a head-band (photophore), by which thelight is thrown directly to the pointdesired. This is more or less cum-bersome (although now made of alu-minium) and necessitates wire at-tachments to the battery or reflected light is used,it is necessary to resort to an extramirror known as the reilector, or , , . ,,,, . , 111 fiG. 9.—Mackenzies Condenser head-muror. ihis should be con- fou akgand bukner. cave if artificial light be used, and plain if sunlight be the sourceof illumination. Some prefer to wear tlie mirror above, others below, the.
Size: 1558px × 1603px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, bookpublisherph, booksubjectnose
