Endodontic irrigating instrument

Details Endodontic irrigating instrument Endodontic irrigating instrument

1984-05-16

1986-08-26

Peshock, Robert

Dentistry

Apparatus

Having intra-oral dispensing means

A61C 502

Patent

active

046080171

ABSTRACT:
An endodontic irrigating instrument comprises a handpiece having an internal liquid passage therethrough extending from a liquid inlet formed in the proximal end of the handpiece to a liquid ejection nozzle provided at the distal end. The handpiece incorporates a suction or vacuum pump of the airjet or ejector type which comprises an air nozzle connected by a passage with an air inlet formed also in the proximal end of the handpiece. The vacuum chamber of the suction pump is connected by a separate internal passage in the handpiece with an aspiration needle provided adjacent to the liquid ejection nozzle. The proximal end of the handpiece is designed to be fitted with a coupling joint attached to a multiple-channel flexible hose which is conventionally used to supply compressed air and pressurized water from a dental unit to conventional air-driven dental turbine tools. Thus, the endodontic irrigating instrument can be used interchangeably with existing turbine tools.

REFERENCES:
patent: 1987907 (1935-01-01), Jenkins
patent: 2449497 (1948-09-01), McLeod
patent: 3164153 (1965-01-01), Zorzi
patent: 3256885 (1966-06-01), Higgins et al.
patent: 3807048 (1974-04-01), Malmin
patent: 4217101 (1980-08-01), Loge
European Search Report.

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