Dentistry – Apparatus – Having motor or means to transmit motion from motor to tool
Patent
1987-04-29
1989-04-04
Jones, Larry
Dentistry
Apparatus
Having motor or means to transmit motion from motor to tool
433119, 433 86, 433 81, A61C 114
Patent
active
048182290
ABSTRACT:
A readily manipulatable fastening for a dental endodontic file and tip assembly for operation by ultrasonic vibrations. The fastening is compatible with a wide range of handpieces of different domestic and foreign manufacturers of dental instruments, and may be used interchangeably with ultrasonically operated scaling tips of various shapes and configurations, also catheters and other dental cleaning and scraping tools. A simple and rugged two-part unit consisting of a flow-through tip fastened to the outlet end of the vibratory stack and a completely enclosed housing for the outer end of the tip, other than a single small aperture therein, preferably bored at a small obtuse angle to the longitudinal axis of the tip for the shank of the file, permits a rapidly executed secure fastening or release of the shank from between the end of the tip and the internal end wall of the housing. Preferably, the end wall of the housing and the outer end of the tip are specially contoured to provide a large contact area for the fastening, to transmit the vibratory energy from the transducer to the file with maximum effectiveness and accurate control, with minimum possibility of breakage.
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Engler Engineering Corporation
Jones Larry
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