Surgery – Respiratory method or device – Ozone or ion generation
Patent
1980-09-24
1982-04-06
Yasko, John D.
Surgery
Respiratory method or device
Ozone or ion generation
128234, 128276, A61M 500
Patent
active
043230660
ABSTRACT:
Apparatus for injecting or aspirating a fluid, including a liquid or paste. The apparatus includes a first piston adapted to be in direct contact with the fluid; and a second piston comprising a shaft adapted to coact with the first piston. The second piston is slideably mounted in a cylinder. The cylinder is divided by the second piston into a first chamber situated on the fluid injection side of the cylinder and a second chamber situated on the opposite side of the cylinder. The cylinder is adapted to be in fluid communication with a positive or negative pressure. At least one communication channel is positioned between the second chamber and the exterior of the cylinder. The at least one channel has a chamber orifice opening into the second chamber and an exterior orifice opening to the exterior. Blocking means for blocking the channel are also provided. The apparatus is such that a positive or negative pressure in the second chamber relative to the first chamber while the communication channel is blocked results in the controllable movement of the first piston.
REFERENCES:
patent: 3279659 (1966-10-01), Harris, Jr.
patent: 3306502 (1967-02-01), Harris, Jr.
patent: 3605746 (1971-09-01), Hodosh
patent: 3818907 (1974-06-01), Walton
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