Evacuation hand piece for use during dental procedures

An evacuation hand piece adapted for connection to evacuation apparatus for reducing stray debris during a dental procedure, the evacuation hand piece being positioned adjacent a face of a patient to collect debris from inside and an area surrounding a first side of a mouth of the patient while the dental procedure is performed on a second side of the mouth, the evacuation hand piece comprising:

• an elongate body member extending along an axis and having connection and suction ends, a central passage extending through the body member from the connection end to the suction end, a suction flange located at the suction end including a center orifice of a given diameter centered about the axis and a plurality of outer orifices located between the center orifice and a periphery of the suction flange, the center orifice and outer orifices extending through the suction flange to fluidly communicate with the central passage;
• a hollow and elongated intra-oral tube slidably and adjustably mounted through the center orifice and having a tip end extending past the suction end of the body member, the intra-oral tube having an outside diameter sized to frictionally yet slidably engage the given diameter of the center orifice;
• and
• a mask attached to and extending from the suction end of the body member, the mask having a sidewall with attachment end disposed near the suction end of the body member and an open end spaced from the attachment end,
• wherein the mask is formed from resilient material so that, when the open end is positioned to engage the first side of the mouth, an inflow is created through the second side of the mouth.

An evacuation hand piece adapted for connection to evacuation apparatus for collecting debris during dental procedures, the evacuation hand piece comprising:

• an elongate body member extending along an axis and having connection and suction ends, a central passage extending through the body member from the connection end to the suction end, a suction flange located at the suction end including a center orifice of a given diameter centered about the axis and a plurality of outer orifices located between the center orifice and a periphery of the suction flange, the center orifice and outer orifices extending through the suction flange to fluidly communicate with the central passage;
• a hollow and elongated intra-oral tube slideably mounted through the center orifice and having a tip end extending past the suction end of the body member, the intra-oral tube having an outside diameter sized to frictionally yet slidably engage the given diameter of the center orifice;
• and
• a mask attached to hand extending from the suction end of the body member, the mask having a sidewall with attachment end disposed near the suction end of the body member and an open end spaced from the attachment end, the open end having a larger cross-sectional area than the attachment end,
• wherein the suction end has a generally spherical shape, and the mask has a neck portion attached to the sidewall having an inner surface which generally conforms to the spherical shape of the suction end, the suction end and attachment portion forming a ball and socket connection which allows the mask to be adjusted in different directions.