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Another suction tongue depressor is offered for the approval of the profession in the belief that it obviates the two serious objections to other such instruments:
1. The thickness and width of the blade is not such as seriously to obstruct the work of the operator.
2. The instrument, being simply a hollow, seamless tube, flattened on the end and curved to form a depressor blade, with the intake point consisting of a single simple slit at the distal end of the blade, the suction channel is very simple and readily cleansed. A flexible obturator is fitted for insertion into the blade of the depressor, in case careless cleansing should leave the lumen obstructed.
An opening into the lumen of the handle just above the curve of the instrument, and convenient to the thumb of the hand holding the instrument, acts as what might be called a thumb valve.
Jackson R. A SIMPLE SUCTION TONGUE DEPRESSOR. JAMA. 1927;88(3):170. doi:10.1001/jama.1927.92680290032010a
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