... tracheotomic aspirating tube for removal of secretions, exudates, crusts, etc., from the tracheobronchial tree through the tracheotomic wound without a bronchoscope. The tube is made of copper so that it can be bent to any curve, and the copper wire stylet prevents kinking. The stylet is removed before using the tube ... — Bronchoscopy and Esophagoscopy - A Manual of Peroral Endoscopy and Laryngeal Surgery • Chevalier Jackson
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