Dental syringe safety sheath apparatus
OwnerRobert Nerliinventor
Life of this patent
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Abstract
The present invention comprises a sheath for protecting a dental syringe and for preventing residual cross-contamination between successive patients. Means are provided for preventing contaminants from being drawn back into the syringe after application has ceased.
Claims14
An apparatus comprising a disposable beak for a dental syringe, said beak having a syringe body engaging-end and a terminal-end, said syringe body engaging end having means to engage said syringe thereon in a fluid tight engagement and having a back flow preventing valve therein, said terminal-end having an aperture to allow a fluid to be dispensed therefrom.
An apparatus comprising a sheath adapted to cover the entire outer surface of a dental syringe beak, said sheath having a ball valve means adjacent a discharge orifice, said ball valve allowing a fluid to be dispensed from said discharge orifice and tip and substantially preventing contaminants from entering or being drawn into said dental syringe through said discharge orifice.
Dependencies are inferred from the claim text.