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To the Editor.—
When performing bronchoscopy with the patient under a general anesthetic, one source of annoyance is the fluctuating escape of gusts of anesthetic gases along the sides of the bronchoscope tube. Although this is mainly a problem for the anesthetist, the endoscopist also has to cope with it and is discomforted by it, especially if the patient is in a generally poor condition and the endoscopy needs to be continued for a considerable time.If the cuffed sliding metal sleeve is used together with the three-window slotted bronchoscope, no anesthetic gases can escape past the inflated cuff. At the same time, the bronchoscope is freely movable from one lung to the other. Obviously, only a regularly round bronchoscope can be used for this device.Figure 1 shows the bronchoscope with the three-window slots, the new sliding metal sleeve with its bayonet fitting the locking notch, and the inflatable
Koopman TJ. A Bronchoscope Sleeve. JAMA. 1973;223(9):1042. doi:10.1001/jama.1973.03220090062021