Dentistry – Apparatus – Having motor or means to transmit motion from motor to tool
Patent
1988-02-10
1989-06-27
Wilson, John J.
Dentistry
Apparatus
Having motor or means to transmit motion from motor to tool
433166, 433125, A61C 105
Patent
active
048425168
ABSTRACT:
A disposable hand tool for performing dental and other health care procedures in which the entire tool is thrown away and disposed of after use with a single patient. The tool is made of relatively inexpensive materials such as plastic, and since durability and re-use are not requirements the operating mechanism can itself be constructed of disposable materials, including non-metallic materials. In the embodiment described herein, the disposable hand tool has a rotatable working member such as a rotatable buffer for polishing and cleaning teeth known in the dental profession as a prophylactic angle or cup, a rotatable burr also for use by dentists, and the like. The rotatable operating mechanism includes a small turbine of plastic or other disposable material mounted for rotation in a hand held housing which is also made entirely of disposable material and connectable to a hose which in turn is connected to a source of compressed air to drive the turbine. The rotatable prophylactic cup, rotatable burr, or other working member may be integrally and non-removably connected to the drive shaft of the turbine, since the working member itself is thrown away with the disposable hand tool after use with a single patient.
REFERENCES:
patent: Re24391 (1957-11-01), McFadden
patent: 2937444 (1960-05-01), Kern
patent: 3192922 (1965-07-01), Winkler
patent: 3855704 (1974-12-01), Booth
patent: 3955284 (1976-05-01), Balson
Kettelson Ernest
Wilson John J.
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