Surgery – Respiratory method or device – Means for supplying respiratory gas under positive pressure
Reexamination Certificate
2005-02-08
2005-02-08
Dawson, Glenn K. (Department: 3731)
Surgery
Respiratory method or device
Means for supplying respiratory gas under positive pressure
C128S204180, C128S207140
Reexamination Certificate
active
06851427
ABSTRACT:
A breathing circuit disconnect warning system comprising an endotracheal tube, a breathing circuit supply tube with a pair of spaced electrically conductive strips, and a coupling tube. The coupling tube has an output end with a normally open switch including a first electrically conductive element and a spaced second electrically conductive element. The coupling tube also has an input end with a first electrically conductive ring and a second electrically conductive ring and lines coupling the rings and the elements. The rings are positionable in contact with the strips of the supply tube, whereby upon inserting the endotrachial tube into the output end, the switch will close and there will be an electrical connection across the switch and lines and rings and strips.
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Dawson Glenn K.
Dutkiewicz Edward P.
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