Syringe for washing teeth root canals

Details Syringe for washing teeth root canals Syringe for washing teeth root canals

1992-01-07

1992-12-15

Wilson, John J.

Dentistry

Apparatus

Having intra-oral dispensing means

433 80, 433224, A61G 502

Patent

active

051711460

ABSTRACT:
A syringe useful for washing root canals wherein the syringe is configured and arranged with a two-position valve which, in a first position, supplies the syringe with hydrogen perioxide and, in the second position, supplies the syringe with sodium peroxide. In a selected embodiment, the valve has a single outlet port and first and second inlet ports connected to a hydrogen peroxide and sodium peroxide supply, respectively. The outlet port is connected to the inlet ports by a rotatable obturator having first and second slanted grooves having first and second ducts, respectively, at opposite ends thereof. In a first rotatable position of the obturator, the first groove is aligned with the first inlet port, and the first duct is aligned with the outlet port. In a second rotatable position of the obturator, the second groove is aligned with the second inlet port, and the second duct is aligned with the outlet port.

REFERENCES:
patent: 2773501 (1956-12-01), Young
patent: 3745655 (1973-07-01), Malmin
patent: 3807048 (1974-04-01), Malmin
patent: 3816921 (1974-06-01), Malmin
patent: 3949748 (1976-04-01), Malmin

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