Cardiac pulmonary resuscitator apparatus valve with integral air sampling port

In a patient valve for use in cardiac pulmonary resuscitator apparatus, the patient valve having

• a cylindrical housing having a top and bottom portion,
• a rotatable tubular member integral with the bottom portion of the cylindrical housing and axially extending from the bottom portion, the rotatable tubular member having a central bore,
• a plurality of air vents located on a bottom surface of the bottom portion between an outer and inner wall of the bottom portion,
• a diaphragm mounted between the top portion and bottom portion of the cylindrical housing, the diaphragm having a depression leading to a pair of valve lips leading into the rotatable tubular member central bore, said diaphragm moving between two positions, a first position providing gaseous communication between a gas source and the patient's lungs, and a second position providing gaseous communication between the air vents and the patient's lungs,
• the improvement comprising means for permitting sampling of gas delivered to the patient, and for sampling gas exhaled by the patient, said sampling means comprising a single tubular port, the tubular port integral with the top portion of said value housing, and mounted on an outer side wall of the top portion parallel to a central axis of the top portion, the tubular port attached at an open first end to a tube leading to an air sampling device and at a second end opening into an interior of the top portion adjacent an outer edge of the diaphragm, said tubular port in gaseous communication with said gas source when said diaphragm is in said first position, and in gaseous communication with the patient's lungs when said diaphragm is in said second position, and
• a pair of stops juxtaposed to the open second end of the tubular port and adjacent to the outer edge of the diaphragm, said pair of stops preventing the diaphragm from covering the open second end of the tubular port.

A patient valve for use in a cardiac pulmonary resuscitator apparatus, the patient valve comprising,

• a diaphragm for controlling air flow mounted between a top and bottom portion of a valve housing, said diaphragm moving between two positions, a first position providing gaseous communication between a gas source and the patient's lungs, and a second position providing gaseous communication between an exhalation flow path and the patient's lungs,
• means for permitting sampling of gas delivered to the patient, and for sampling gas exhaled by the patient, said sampling means comprising a single tubular port mounted on an outer wall of the valve housing,
• a first end of the tubular port connected to a flexible tube leading to an air sampling device and a second end opening leading into the interior of the valve housing adjacent an outer edge of the diaphragm, said tubular port in gaseous communication with said gas source when said diaphragm is in said first position, and in gaseous communication with the patient's lungs when said diaphragm is in said second position, and
• a pair of stops mounted on an inner wall of the valve housing and adjacent to the outer edge of the diaphragm, said pair of stops preventing the diaphragm from covering the second end opening of the tubular port so that air flowing from the patient and the gas source may flow freely through the second end opening to the air sampling device.