Dentistry – Apparatus – Having intra-oral dispensing means
Reexamination Certificate
1999-09-29
2001-09-25
Lewis, Ralph A. (Department: 3732)
Dentistry
Apparatus
Having intra-oral dispensing means
C433S080000, C604S259000
Reexamination Certificate
active
06293793
ABSTRACT:
The invention relates to dental scaling systems. The invention provides a stacking dental reservoir and scaling system. The present invention provides a reservoir housing having at least one container which is readily connected to a power control housing and stackable thereon. The level of liquid in each container in the reservoir housing is readily visually inspected through a clear plastic (polymeric) cover. The cover pivots on hinges to swing the lower end of the cover above the reservoir housing to open the housing for removal and/or installation of containers.
It is an object of the invention to provide an ultrasonic dental tooth treatment system including an ultrasonic dental handpiece and attaching cable assembly and control housing and a fluid reservoir housing which encloses two containers, each connected to a selector valve connected to a control housing conduit connected to a handpiece conduit.
It is an object of the invention to provide a fluid dispenser which includes readily removable reservoir supported by a reservoir housing having a cover which is pivotable between an open position and a closed position and an interlock valve which is closed by the cover when the cover is in its open position.
It is an object of the invention to provide a stacking dental reservoir and scaling system.
It is an object of the invention to provide a dental scaler system having a reservoir housing with a clear plastic cover which pivots on hinges to swing the lower end of the cover above the reservoir housing to open the housing for the removal and/or installation of containers, as is provided by the present invention.
It is an object of the invention to provide a stackable reservoir housing having a self contained three position selector valve connected in fluid flow communication to a source of air pressure for dispensing from either of two reservoir liquid containers or from a water supply through the selector valve. In a preferred embodiment of the invention only fluid from any one of the containers is conveyed to the handpiece and the system is not connected to an external water supply. By so doing the system can dispense clean water. The system can also be connected to an external water supply, which can also be dispensed to a scaler system.
Warrin et al in U.S. Pat. No. 5,419,703 discloses a method of subgingival scaling and lavage. The apparatus disclosed in Warrin et al includes reservoirs for storing medicament inside a base unit.
The invention solves the problems of the prior art fluid dispensing dental system.
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Dentsply Research & Development Corp.
Lewis Ralph A.
Lovercheck Dale R.
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