Patent ID: 8875708

Claim:
A ventilation device, comprising: a housing having at least one outlet passage for allowing, gas to be expired from the. lungs of a patient and at least one inlet passage for allowing gas to be provided the lungs of the patient; at least one valve provided at the outlet passage configured to allow gas to flow out of the housing to ambient while inhibiting gas from entering through the outlet passage; at least one release mechanism provided at the inlet passage and configured to periodically open and close the inlet passage during chest compressions to control inflow of gas through the inlet passage, the at least one release mechanism further configured to close the inlet passage when pressure in the lungs of the patient equals ambient pressure; and a control device operable to control the opening and closing of the at least one release mechanism, wherein the at least one release mechanism includes a disk rotatably coupled to the housing, the disk having a disk opening and the control device is configured to rotate the disk relative to the housing each time a chest compression is detected to periodically align the disk opening with an opening of the housing to open the inlet passage.