File:Diseases of the ear; a text-book for practitioners and students of medicine (1909) (14766155874).jpg

Identifier: diseasesofearte00den (find matches)
Title: Diseases of the ear; a text-book for practitioners and students of medicine
Year: 1909 (1900s)
Authors: Dench, Edward Bradford, 1864-1936
Subjects: Ear
Publisher: New York, London, D. Appleton and Company
Contributing Library: The Library of Congress
Digitizing Sponsor: The Library of Congress

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an not fail to be of greatservice to the otologist, who is often obliged to make anexamination at the bedside. For convenience in making anexamination at the bedside, as an adequate source of illumina-tion may not always be obtainable without delay, or may de-mand the aid of an assistant to permit of a proper examinationwithout moving the patient, it is well for the examiner to beprovided for such an emergency. For this purpose use maybe made of the device shown in Fig. 28, which consists of aclamp which may be fastened to a table, chair, the frame ofthe bedstead, or any other firm object in the room, as maybe convenient. This clamp carries a jointed rod, which sup-ports a short arm for holding an ordinary candle. For citypractice the ordinary fish-tail gas-burner may be substituted THE SOURCE OF LIGHT. 77 in place of the candle, the burner being attached to a smallmetal band which fits into the candle-holder. This burner isconnected with a gas fixture in the room by means of a flexi-
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Fig. 28.—Authors portable illuminating apparatus. In the figure the candle andelectric lamp are in position ; the gas-burner is shown in the detached drawingon the left. 78 PHYSICAL EXAMINATION. ble pipe attached to it. This apparatus enables one to securea fairly efficient source of illumination and to place the lightin exactly the position from which he may make the examina-tion with greatest comfort to the patient and to himself, andrenders the entire procedure less laborious and correspond-ingly more exact. The entire apparatus occupies but littlespace in the instrument bag, and greatly facilitates bedside ex-amination. A small electric lamp suitable for operative workcan also be attached to the vertical rod, while a light shelf forsupporting an oil lamp can be fitted upon the arm carryingthe candle, if the examiner prefers this source of illumination. The different appearance of the parts viewed by artificiallight as compared with the picture seen when diffuse day-light is empl

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