Dentistry – Apparatus – Having suction orifice
Reexamination Certificate
2006-11-07
2006-11-07
OConnor, Cary E. (Department: 3732)
Dentistry
Apparatus
Having suction orifice
C433S091000
Reexamination Certificate
active
07131839
ABSTRACT:
A sleeve for preventing backflow and cross-contamination between patients of fluid and particulate matter as well as other contaminants present within a dental/medical suctioning device. The sleeve includes a sleeve inlet end that sealingly attaches to and surrounds at least a portion of the suctioning device the vacuum hose to the evacuator tip. The sleeve also has a sleeve exhaust end that is inserted into the control valve and can reside within the interior lumen of the vacuum hose during normal suction operation. During operation, the sleeve provides a seal between the patient contact part and the control valve of the suctioning device. The proximate end collapses, seals, and/or provides a barrier when the suctioning device does not draw a vacuum away from the patient and towards the vacuum source.
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O'Connor Cary E.
Patterson Thuente Skaar & Christensen P.A.
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