Multi-fluted dental irrigation drill
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 16, 1993
Grant Date -
N/A
app pub date -
Jul 13, 1992
filing date -
Jul 13, 1992
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A dental drill exhibits the form of a substantially solid cylindrical body having a cutting portion and a gripping shank. The cylindrical body includes a boss between the cutting portion and said gripping shank. Upon the cutting portion, between the boss and a tip of the cutting portion, are provided at least four axi-symmetric flutes upon a lateral surface of the cutting portion. Each of the flutes are substantially co-axial with the longitudinal axis of the drill, defining a substantially linear profile before reaching the conical tip of the cutting portion, at which each of the flutes narrows. The flutes are separated by substantially co-axial channels having radial depths of about one-eighth of the diameter of the cylindrical body. Each of the channels flare to a larger polar dimension at said tip of the cutting portion. The body is provided with an axial irrigation channel having at least one liquid outlet within each of the channels and proximally to the tip of the cutting portion of the drill. The improved drill affords superior control to the dentist and decrease trauma to the patient.
First Claim
Family
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Cited Art Landscape
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