초록 ▼

An evacuation hand piece for collecting debris during dental procedures. The hand piece is adapted for attachment to evacuation apparatus and provides both intra- and extra-oral suction. A body member of the hand piece has a contoured outer gripping surface which makes the hand piece easier to grasp

An evacuation hand piece for collecting debris during dental procedures. The hand piece is adapted for attachment to evacuation apparatus and provides both intra- and extra-oral suction. A body member of the hand piece has a contoured outer gripping surface which makes the hand piece easier to grasp. A mask is disposed at one end of the hand piece to create a suction area which is larger than the cross sectional area of the body member. The mask is attached to a spherical tip of the body member to form a ball and socket-type connection which permits directional adjustment of the mask, thereby maximizing the effective extra-oral suction of the hand piece. The mask is formed from transparent material to allow viewing through the mask during dental procedures.

대표청구항 ▼

[ What is claimed is:] [1.] 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

[ What is claimed is:] [1.] 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 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; anda 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, the open end having a larger cross-sectional area than the attachment end.