Surgery – Respiratory method or device – Means for supplying respiratory gas under positive pressure
Patent
1988-11-14
1991-06-04
Crowder, Clifford D.
Surgery
Respiratory method or device
Means for supplying respiratory gas under positive pressure
12820418, A62B 902
Patent
active
050205323
ABSTRACT:
A valve for the expiratory tubing of a ventilator circuit. The valve assembly includes a valve body, diaphragm, top cap and control tubing. The valve body includes a valve seat, annular surface, sealing ribs, along with other annular members. The diaphragm includes a thick center portion, connected by a thin web to a relatively thick annular rim and surrounding flange. The top cap includes a compression ring which clamps the diaphragm annular flange to the valve annular surface. In the valve open position, the valve body supports the diaphragm only at the diaphragm flange.
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Krapil Virginia
Mahoney Michael R.
McDowell Douglas J.
Nieman Wayne H.
Asher Kimberly L.
Baxter International Inc.
Crowder Clifford D.
Pierce Kay H.
Schnurr Mary J.
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