| 摘要 |
A manually operated respiration apparatus, including a respiration housing, provided with a respiration channel for connection with a patient to whom artificial respiration is to be applied, which respiration channel is connected via a valve system connected to a balloon unit for supplying air to the patient via the respiration channel and with an outflow port for evacuation of air exhaled by the patient. The balloon unit includes a resilient bellows provided with a first opening with a non-return valve and a second opening. The second opening of the bellows is connected with the inflow port of the respiration housing. Upon squeezing the bellows, air exits the bellows via the second opening. Upon releasing the bellows, it rebounds and draws in air via the first opening. The bellows is provided with an overpressure protection for evacuating air from the bellows when a predetermined pressure value is exceeded. |
