Apparatus for dental treatment using high pressure liquid jet
AssigneeSurgiJet, Inc.
InventorsLarry L. Hood, Juan C. Valdes, Steven Baldwin, Randall Bailey, Rex E. Doherty
Life of this patent
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Abstract
A dental instrument includes a pneumatic pressure intensifier that supplies a handpiece having an orifice to generate a high velocity liquid jet. A pneumatic system includes valves to supply the pressure intensifier and control the output to the handpiece. A jet forming assembly includes an orifice mount in the handpiece, and a guide tube assembly secured to the orifice mount. The guide tube assembly is variably positioned to select the minimum distance from the jet orifice to the tissue target, so that the jet force may be controlled.
Claims28
A high velocity liquid jet dental instrument, including:
- reservoir means for supplying liquid to said jet;
- pneumatic pressure intensifier means for receiving liquid from said reservoir means and generating a high pressure liquid output;
- a dental handpiece;
- first valve means for controlling the flow of said high pressure liquid output to said handpiece;
- jet orifice means in said handpiece for receiving said high pressure liquid output and forming a high velocity, narrow jet beam.
A high velocity liquid jet dental instrument, including:
- reservoir means for supplying liquid to said jet;
- pressure intensifier means for receiving liquid from said reservoir means and generating a high pressure liquid output;
- a dental handpiece;
- first valve means for controlling the flow of said high pressure liquid output to said handpiece;
- jet orifice means in said handpiece for receiving said high pressure liquid output and forming a high velocity, narrow jet beam;
- and,
- bubble detector means interposed between said reservoir means and said pressure intensifier means for detecting interruption in liquid supply and stopping said pressure intensifier means.
Dependencies are inferred from the claim text.