A short time ago, I 1 described in this journal a new method for the introduction of fluids into the nasal accessory sinuses, which I termed "displacement irrigation." It consists, briefly, in inverting the head; introducing fluid into the upturned nose, and causing it to enter the sinuses by exhausting air from them and allowing the fluid to replace it. Various solutions have been employed for their cleansing and therapeutic effects, and iodized oils have been introduced for roentgen-ray examination.
The apparatus that was used in the beginning consisted of a 5 cc. glass plunger syringe for introducing the fluid, and an electric suction pump to produce the vaccuum. This arrangement proved somewhat cumbersome, especially in the roentgen-ray laboratory, and necessitated a trip to the roentgenologist with the patient in order to introduce the oil at the proper moment.
In order to simplify the procedure
PROETZ AW. A SPECIAL SYRINGE FOR DISPLACEMENT IRRIGATION OF THE NASAL SINUSES. Arch Otolaryngol. 1926;4(5):424. doi:10.1001/archotol.1926.00590010450004
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