Tracheostomy is a frequent life-saving procedure. Personnel attending patients so treated are often struck in the face and eyes by droplets of pus explosively expelled during coughing. Staphylococcus infections
A standard tracheostomy cannula has been modified to reduce this possibility by placing a removable metal baffle ½ inch (14 mm.) from the cannula opening as shown in Figure 1 *. The baffle is 27 mm. in diameter, easily cleaned in situ, or rotated to one side for tube care, cleansing, or removal (Fig. 2).
MICHAEL SCOTT, CHARLES THUR. External Baffle for Tracheostomy CannulaProtection of Personnel from Contamination by Coughed Secretions. Arch Otolaryngol. 1962;75(3):238. doi:10.1001/archotol.1962.00740040246011