Patent ID: 9532857
Date: 2017-01-03
CPC Classifications: A61C,F04C

Claim:
1. A dental suction tube comprising: a proximal portion having a substantially hollow interior for the allowance of movement of material therethrough due to suction, the proximal portion configured for attachment to a suction source; a substantially straight distal portion having a distal portion longitudinal axis and being connected to and extending distally from the proximal portion and having a substantially hollow interior for the allowance of movement of material therethrough due to suction, the distal portion defining a distal end having an opening, the proximal portion and the distal portion together defining the entire length of the dental suction tube; an outer wall extending along the entire length of the dental suction tube and having a bend at a junction of the proximal portion and the distal portion; and a plurality of apertures extending through the outer wall of the distal portion, the plurality of apertures being disposed along an imaginary helical line which is at an angle of between 25° and 30° with respect to the distal portion longitudinal axis, the percentage of the total cross-sectional area of all of the apertures extending through the outer wall to the cross-sectional area of the distal end opening being in the range of about 40% to about 70%, at least a majority of the plurality of apertures being proximal to the opening of the distal end.