Pilling Co.

Andrew J Furey

Frederic P Rosenwald

Rodney J Kulp

Laryngoscope

A neonatal subglottiscope set for emergency use comprises a plurality of subglottiscope tubes of various sizes suitable for neonatal use and a handle. These tubes are detachably connectable to the handle by means of a lever-operated latch. Each tube has a passage along its wall for receiving a fiberoptic light carrier, which is bent 90 degrees near its proximal end, and which has a locating pin receivable in a hole located in an ear on the handle. The entrance opening of the light carrier-receiving passage on its subglottiscope tube is positioned on the wall of the tube so that when the tube is attached to the handle, the entrance opening in all cases is at a uniform predetermined distance from the hole in the ear on the handle which receives the locating pin of the light carrier. Consequently, the same light carrier and handle can be used with all of the tubes in the set. Removability of the subglottiscope tube from the handle allows the subglottiscope tube to be safely inserted in the larynx of the patient by eliminatng the possibility of exerting excessive leverage through the handle as the tube is inserted. The handle is a two-part handle having a first section directly attachable to the subglottiscope tube for manual movement of the tube after insertion, and the second section being attachable to the first section and usable to connect the subglottiscope tube to a laryngoscope support.

Neonatal subglottiscope set

A gauge for use in determining the extent to which the cutting blade of an extensible-blade keratotomy knife projects beyond the end of a cutting depth limiting foot, comprises a base, a knife-holding cradle slidable on the base, a clamping screw for clamping the cradle to the base in any selected position within a range, a block fixed to the base, and a gauge element slidable on the base and adjustably movable with respect to the block toward and away from the cradle. With a knife mounted on the cradle, and the gauge element at a predetermined reference position, the cradle is moved until the foot of the knife abuts one face of the gauge element. The gauge element is then moved away from the foot by an adjusting screw, until an edge of the gauge element underlies the tip of the knife blade. The top face of the gauge element and the base surface on which the gauge element slides are of contrasting colors. The cradle includes a post for supporting the knife body with a unitary spring wire hold-down clip pivoted on the post.

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Philadelphia, PA, United States of America

Andrew J Furey