Surgery – Respiratory method or device – Means for supplying respiratory gas under positive pressure
Reexamination Certificate
2005-08-31
2008-03-25
Yu, Justine R. (Department: 3771)
Surgery
Respiratory method or device
Means for supplying respiratory gas under positive pressure
C128S204210, C128S204230
Reexamination Certificate
active
07347205
ABSTRACT:
A method for providing a pressure reference level for pressure triggering a ventilator responsive to a spontaneous breathing attempt by a patient. In the method, the patient connection of the breathing circuit is capped or plugged. A gas flow is then provided through the breathing circuit and is altered to an amount that causes the flow resistance properties of the breathing circuit to generate a desired gas pressure in the breathing circuit suitable for use as a reference pressure by the ventilator for pressure responsive triggering. During the operation of the ventilator, gas flow in a corresponding amount serves as a bias flow in the breathing circuit to assist breathing by the patient. The bias flow also generates the reference pressure level in the breathing circuit. A reduction in pressure from the pressure level resulting from inhalation by the patient triggers the operation of the ventilator.
REFERENCES:
patent: 5148802 (1992-09-01), Sanders et al.
patent: 5438980 (1995-08-01), Phillips
patent: 5492113 (1996-02-01), Estes et al.
patent: 5503146 (1996-04-01), Froehlich et al.
patent: 6968842 (2005-11-01), Truschel et al.
Andrus Sceales Starke & Sawall LLP
Matter Kristen C.
The General Electric Company
Yu Justine R.
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