Surgical drainage system with pressure indicator and enclosed so

Details Surgical drainage system with pressure indicator and enclosed so Surgical drainage system with pressure indicator and enclosed so

1976-05-07

1978-09-12

Michell, Robert W.

Surgery

Respiratory method or device

Ozone or ion generation

73747, A61M 100

Patent

active

041129482

ABSTRACT:
A surgical drainage system is provided for the drainage of fluid from a body cavity which comprises a collection chamber, a U-tube manometer having one arm in fluid communication with the inlet to the collection chamber and a closed chamber in fluid communication with the other arm of the U-tube manometer. There is provided a rupturable container of liquid within one arm of the U-tube manometer such that when pressure is applied to the container a weakened seal breaks, thus allowing the liquid within the container to flow into the lower connected arms of the U-tube manometer. The U-tube manometer provides a visual indication of changes of pressure in the body cavity by oscillation of the liquid in the manometer. There is further provided a one way valve between the collection chamber and the inlet to the collection chamber. The one way valve permits fluids to flow from the body cavity into the collection chamber but prevents backflow of any higher pressure gas that might exist in the collection chamber.

REFERENCES:
patent: 3363626 (1968-01-01), Bidwell et al.
patent: 3363627 (1968-01-01), Bidwell et al.
patent: 3463159 (1969-08-01), Heimlich
patent: 3672372 (1972-06-01), Heimlich
patent: 3946735 (1976-03-01), DeWall

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