Dentistry – Apparatus – Having motor or means to transmit motion from motor to tool
Patent
1999-11-02
2000-08-08
Lucchesi, Nicholas D.
Dentistry
Apparatus
Having motor or means to transmit motion from motor to tool
433166, A61C 306
Patent
active
06099309&
ABSTRACT:
A disposable right angle dental handpiece comprising a plastic housing having a sleeve, a tapered neck, a head and a disposable prophy cup. The cup being removably coupled to a driven rotating member located in the head section for simultaneously cleansing the surface of the teeth as well as the surrounding tissue and gingival crevice. The sleeve having an elongated opening for receiving a power drive from a dental unit. A gear ratio mechanism located in the sleeve, rather than in the head section, for increasing the shaft speed by a factor of two to three times. A gear to gear arrangement in the head section for transferring the directional rotation from the drive shaft to the prophy cup. The prophy cup comprising a flexible body having a cavity therein with a plurality of concentric rings made of cloth or felt material for holding the cleansing paste and also to avoid splattering.
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Burns D. Michael
Lucchesi Nicholas D.
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