Dentistry – Apparatus – Having motor or means to transmit motion from motor to tool
Patent
1987-09-17
1989-01-03
Peshock, Robert
Dentistry
Apparatus
Having motor or means to transmit motion from motor to tool
433132, A61C 116
Patent
active
047953438
ABSTRACT:
A disposable rotary tool assembly for cleaning teeth comprising what is known in the dental profession as a prophylactic angle, a small cup-like member made of rubber or similar material having a frusto-conical shape which is placed against a patient's teeth and rotated for cleaning and polishing, and a disposable operating assembly for rotating the same which is connected to a dentist's air syringe and powered by pressurized air instead of being connected to the dentist's hand piece as at present which requires a relatively expensive shaft driven connector, not practical to dispose of after each use with a single patient. The disposable operating assembly in accordance with this invention comprises a flexible sheet sheath of plastic such as polyethylene in which the elongated nozzle and body of the air syringe is inserted, a turbine chamber also of plastic material connected at the end of the sheath which is press fitted or otherwise mounted on the outlet tip of the air syringe nozzle, having a small plastic or hard rubber turbine within for rotation by a flow of pressurized air from the air syringe, to in turn rotate the small prophylactic angle piece connected thereto. The entire operating assembly is removed from the air syringe and can be disposed of after use with a single patient in view of the inexpensive nature of the materials used.
REFERENCES:
patent: 3955284 (1976-05-01), Balson
patent: 4248589 (1981-02-01), Lewis
patent: 4259071 (1981-03-01), Warden et al.
patent: 4693871 (1987-09-01), Geller
Kettelson Ernest
Peshock Robert
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