Dentistry – Apparatus – Having motor or means to transmit motion from motor to tool
Reexamination Certificate
2005-09-27
2005-09-27
Philogene, Pedro (Department: 3732)
Dentistry
Apparatus
Having motor or means to transmit motion from motor to tool
C433S224000, C433S118000, C433S120000
Reexamination Certificate
active
06948935
ABSTRACT:
A device for performing endodontic procedures such as root canals by utilizing ultrasonic energy to debride the root canal space. The device includes a modified shaft assembly and a stainless steel hypodermic needle which concentrates the ultrasonic energy at the tip of the needle. The shaft assembly further includes a threaded housing for attaching the shaft assembly to an ultrasonic generator, an angled shaft attached to the threaded housing, and a hub attached to the end of the angled shaft opposite the threaded housing for reducing the diameter of the bore when the hub is tightened. The angled shaft further includes a bore passing through its length and an aperture passing through the outer wall of the shaft. The aperture is positioned near the larger of the two angles formed by the angled shaft and is oriented in the direction of the hub. The needle is inserted into the aperture and passes through the bore in the angled shaft until it exits the shaft through the hub. The working length of the needle may be adjusted by the practitioner.
REFERENCES:
patent: 4019254 (1977-04-01), Malmin
patent: 4229168 (1980-10-01), Scholz, Jr.
patent: 4492574 (1985-01-01), Warrin et al.
patent: 4505676 (1985-03-01), Gonser
patent: 4617918 (1986-10-01), Donohue et al.
patent: 4681545 (1987-07-01), Lapcevic
patent: 4818229 (1989-04-01), Vasile
patent: 5116227 (1992-05-01), Levy
patent: 5320530 (1994-06-01), Fong
patent: 5567153 (1996-10-01), Foulkes et al.
patent: 5868570 (1999-02-01), Hickok et al.
patent: 6050818 (2000-04-01), Boland et al.
patent: 6162202 (2000-12-01), Sicurelli et al.
patent: 2003/0207231 (2003-11-01), Nance
Archer et al.; An in vivo evaluation of the efficacy of ultrasound after step-back preparation of mandibular molars. Journal of Endodontics: vol. 18, No. 11, pp. 549-552 (Nov. 1992). Published by the American Association of Endodontists.
Haidet et al.; An in vivo comparison of the step-back technique versus a step-back/ultrasonic technique in human mandibular molars. Journal of Endodontics: vol.15, No. 5, pp. 195-199 (May 1989). Published by the American Association of Endodontists.
Lev et al.; An in vivo comparison of the step-back technique versus a step-back/ultrasonic technique for 1 and 3 minutes. Journal of Endodontics: vol. 13, No. 11, pp. 523-530 (Nov. 1987). Published by the American Association of Endodontists.
Goodman et al.; An in vitro comparison of the efficacy of the step-back technique versus a step-back/ultrasonic technique in human mandibular molars. vol. 11, No. 6, pp. 249-256 (Jun. 1985). Published by the American Association of Endodontists.
Calfee Halter & Griswold LLP
Philogene Pedro
Stokes Candice C.
The Ohio State University
LandOfFree
Ultrasonic dental device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Ultrasonic dental device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ultrasonic dental device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3437905