Patent ID: 8393898

Claim:
An apparatus for filtering dental solid waste, comprising: a single-use disposable high volume evacuation (HVE) tip with a first end that connects to 0.500 (½) inch ID central vacuum tube and a second end that connects to a 0.4375 ( 7/16) inch tip that is inserted in a patient's mouth to remove dental waste; a filtration unit adapted to retain solid dental waste within the HVE tip located between the first end of the HVE tip and the second end of the HVE tip, where the filtration unit comprises an internal unitary conically shaped filter assembly positioned so that a flow of liquid through the internal filter assembly contacts the filter assembly at an acute angle, and a unitary filter housing which contains the conically shaped filter assembly, wherein the filtration unit is a unitary structure, as to prevent access to the internal conically shaped filter assembly by a user of the apparatus, and retains solid dental waste of a size greater than 10 microns; and a check valve located between the filtration unit and the second end of the HVE tip, where the check valve ensures retention of the solid dental waste within the HVE tip.