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There are certain situations in which ear suctioning is facilitated by a tube of very small caliber. The tubes presented qualify for this specification with an over-all diameter of only 1.5 mm. (Fig. 1).
One tube has a finger cut-off (Fig. 2 A). This is especially useful in suctioning blood between the bony and the membranous external auditory canal when the membranous canal is being separated in the fenestration operation. The amount of suction permitted by the tube is adequate to keep the field clean but is not of sufficient force to cause trauma to the membranous canal.
The suction tube without a finger cut-off (Fig. 2 B) is very useful in office practice. It is a timesaver in cleaning discharging ears. Its small caliber allows its use through a magnifying otoscope without obstructing vision of the field. The middle ear can be suctioned directly through large and small tympanic
BARON SH. NEW EAR SUCTION TUBES. AMA Arch Otolaryngol. 1952;56(6):642–643. doi:10.1001/archotol.1952.00710020667009