Dentistry – Apparatus – Tool bit
Patent
1992-07-13
1993-11-16
O'Connor, Cary E.
Dentistry
Apparatus
Tool bit
433166, A61C 302, A61C 306
Patent
active
052618188
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.
REFERENCES:
patent: 4021920 (1977-05-01), Kirschner et al.
patent: 4820156 (1989-04-01), Ross
patent: 5085586 (1992-02-01), Johnson
patent: 5098293 (1992-03-01), Loof et al.
Cherichetti Cindy A.
O'Connor Cary E.
Silverman M. K.
LandOfFree
Multi-fluted dental irrigation drill does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Multi-fluted dental irrigation drill, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multi-fluted dental irrigation drill will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-18748