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| If we must die--let it not be like hogs Hunted and penned in an inglorious spot, While round us bark the mad and hungry dogs, Making their mock at our accursed lot. If we must die--oh, let us nobly die, So that our precious blood may not be s... Read more of If We Must Die at Martin Luther King.ca | Informational Privacy |
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BronchoscopesCategory: INSTRUMENTARIUM Source: A Manual Of Peroral Endoscopy And Laryngeal Surgery The regular bronchoscope is a hollow brass tube slanted at its distal end, and having a handle at its proximal or ocular extremity. An auxiliary canal on its under surface contains the light carrier, the electric bulb of which is situated in a recess in the beveled distal end of the tube. Numerous perforations in the distal part of the tube allow air to enter from other bronchi when the tube-mouth is inserted into one whose aerating function may be impaired. The accessory tube on the upper surface of the bronchoscope ends within the lumen of the bronchoscope, and is used for the insufflation of oxygen or anesthetics, (Fig. 2, A, B, C, D). For certain work such as drainage of pulmonary abscesses, the lavage treatment of bronchiectasis and for foreign-body or other cases with abundant secretions, a drainage-bronchoscope is useful The drainage canal may be on top, or on the under surface next to the light-carrier canal. For ordinary work, however, secretion in the bronchus is best removed by sponge-pumping (Q.V.) which at the same time cleans the lamp. The drainage bronchoscope may be used in any case in which the very slightly-greater area of cross section is no disadvantage; but in children the added bulk is usually objectionable, and in cases of recent foreign-body, secretions are not troublesome. As before mentioned, the lower air passages will not tolerate dilatation; therefore, it is necessary never to use tubes larger than the size of the passages to be examined. Four sizes are sufficient for any possible case, from a newborn infant to the largest adult. For infants under one year, the proper tube is the 4 mm. by 30 cm.; the child's size, 5 mm. by 30 cm., is used for children aged from one to five years. For children six years or over, the 7 mm. by 40 cm. bronchoscope (the adolescent size) can be used unless the smaller bronchi are to be explored. The adult bronchoscope measures 9 mm. by 40 cm. The author occasionally uses special sizes, 5 mm. x 45 cm., 6 mm. x 35 cm., 8 mm. x 40 cm. Next: Esophagoscopes Previous: Laryngoscopes
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