Method and apparatus for administering anesthetics

Details Method and apparatus for administering anesthetics Method and apparatus for administering anesthetics

1985-05-31

1989-01-03

Coven, Edward M.

Surgery

Respiratory method or device

Means for mixing treating agent with respiratory gas

A61M 1600

Patent

active

047949210

ABSTRACT:
A method and apparatus for reducing the atmospheric contamination in an operating room as a result of anesthetic gas that escapes from an anesthetic gas mask. The mask has a double wall structure and includes a deflector positioned within the mask body to cause turbulent flow of anesthetic gas therewithin so that the gas is substantially confined within the inner mask cavity and does not escape directly outwardly from the mask opening when the mask is removed from the face of the patient. The double wall construction provides an extraction slot around the inner mask body that is in communication with a source of reduced pressure to extract any anesthetic gas that escapes from within the inner mask body. A connector is provided for supplying anesthetic gas, for withdrawing exhaled gas.

REFERENCES:
patent: 2859798 (1955-11-01), Hudson
patent: 3856051 (1974-12-01), Bain
patent: 4265239 (1981-05-01), Fischer, Jr. et al.

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