Dentistry – Apparatus – Having intra-oral dispensing means
Patent
1998-02-03
1999-08-24
Wilson, John J.
Dentistry
Apparatus
Having intra-oral dispensing means
433 80, A61C 302
Patent
active
059417021
ABSTRACT:
A handpiece for a dental instrument includes a solid body having internally reamed passageways through which a fluid is carried. The handpiece may be a dental air-abrading tool for etching hard surfaces to enhance bond strength of adhesives, which includes a solid body having internally reamed passageways through which a gaseous fluid and an abrasive material are carried. A connector is mounted on one end of the body for connecting one of the body's internal passageways to a supply of gaseous fluid and a nozzle is mounted on the other end of the body for directing the gaseous fluid to a surface. A supply of an abrasive material is coupled to another internal passageways of the body. The nozzle includes an internal mixing chamber for mixing the gaseous fluid and abrasive material entering therein from the body's internal passageways. A switch is mounted on the body for activating the flow of gaseous fluid and abrasive material through the body. The switch includes a valve which is slidably mounted within a gaseous fluid passageway between a first position and a second position such that in its first position the valve blocks the flow of gaseous fluid and in its second position the valve allows the gaseous fluid to flow through the body. The switch also includes a trigger pivotally mounted on the body to move the valve alternatively between its two positions. The components of the handpiece are all made from high temperature materials allowing the entire handpiece to be sterilized by autoclaving.
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Klocek Kevin
Sharp Michael C.
Parkell Products, Inc.
Wilson John J.
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