Cannula and process

Details Cannula and process Cannula and process

1979-12-14

1981-07-07

Yasko, John D.

Surgery

Respiratory method or device

Ozone or ion generation

433 80, A61M 500

Patent

active

042768802

ABSTRACT:
An improved cannula for utilization with and attachment to a dental instrument capable of selectively and alternatively injecting liquid under pressure and providing a vacuum for aspirating purposes and a process for utilizing the cannula. The improved cannula has a through central bore opening into the first end of the cannula body and has a second end that is either open to said bore or closed. Opposed slots or openings are provided in the cannula body adjacent the second end of the cannula and provide communication between the exterior of the cannula and the central bore, and also means for attaching the cannula to an instrument such as described above are provided on the body thereof. A modified form of the invention has a fully closed second end and a single elongate radiused "window" opening closely adjacent the closed end.

REFERENCES:
patent: 2862495 (1958-12-01), Gewecke
patent: 3181336 (1965-05-01), Schofield
patent: 3312220 (1967-04-01), Eisenberg
patent: 3509880 (1970-05-01), Guttman
patent: 3530492 (1970-09-01), Ferber

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