Abstract: An artificial respiration apparatus includes a frame having a positive pressure input port, a negative pressure input port, an atmospheric port and an output port. A switching member switches between a first state in which the positive pressure input port is connected to the output port while the negative pressure input port is connected to the atmospheric port, and a second state in which the positive pressure input port is connected to the atmospheric port while the negative pressure input port is connected to the output port. A drive unit successively drives the switching operation of the switching member such that the connection between the negative pressure input port and the atmospheric port slightly precedes the connection between the positive pressure input port and the output port.

Abstract: The present invention provides a high-frequency oscillation (HFO) artificial respiration apparatus comprising an inhale gas introduction block 62 for supplying an inhale gas to a patient X, a patient-side path 60 for guiding the inhale gas to the patient X, an oscillating air pressure urging block 50 for applying an oscillating air pressure to the inhale gas, an exhaust path 70 for exhausting an exhale gas exhaled from the patient X, and a controller 40 for controlling operation of the oscillating air pressure urging block 50. The oscillating air pressure urging block 50 includes a blower 52 and a rotary valve 54. The controller 40 includes an input block 41 for accepting a ventilation frequency and a ventilation amount at a time for the patient and an operation control block 49 for controlling the rotary valve 54 and the blower 52 according to values entered.

Abstract: The present invention provides a high-frequency oscillation artificial respiration apparatus that includes an inhale gas introducer that supplies an inhale gas containing oxygen to a patient and a patient side path that guides the inhale gas from the inhale gas introducer into the patient. An oscillating air pressure provider that applies an oscillating air pressure having a higher frequency than a respiration frequency of the patient, to the inhale gas flowing through the patient side path, an exhaust path that exhausts an exhale gas containing carbon dioxide exhaled from the patient, into the atmosphere, and an auxiliary inhale gas supply are also provided. The patient side path includes a branching pipe that branches a flow from the inhale gas introducer to the exhaust path side and the patient side and an intrachea insert tube that is connected to the patient side end of the branching pipe can be inserted through a mouth into the trachea of the patient.

Abstract: The present invention provides an artificial respiration apparatus 12 of a high oscillation type, in which oxygen supply to a patient P and exhaled gas discharge are urged by an oscillating gas having a higher frequency than the cycle of the patient respiration. The apparatus includes a discharge direction regulating mechanism 7 for regulating the exhaled gas to flow only in the discharge direction.

Abstract: The present invention provides a high-frequency oscillation (HFO) artificial respiration apparatus comprising an inhale gas introduction block 62 for supplying an inhale gas to a patient X, a patient-side path 60 for guiding the inhale gas to the patient X, an oscillating air pressure urging block 50 for applying an oscillating air pressure to the inhale gas, an exhaust path 70 for exhausting an exhale gas exhaled from the patient X, and a controller 40 for controlling operation of the oscillating air pressure urging block 50. The oscillating air pressure urging block 50 includes a blower 52 and a rotary valve 54. The controller 40 includes an input block 41 for accepting a ventilation frequency and a ventilation amount at a time for the patient and an operation control block 49 for controlling the rotary valve 54 and the blower 52 according to values entered.

Abstract: The present invention provides a small-size, small-weight, low-cost artificial respiration apparatus which can easily be used in an ordinary hospital. The artificial respiration apparatus 10 includes: a positive blower 12p for generating a positive air pressure Ap; a negative blower 12n for generating a negative air pressure An; a rotary valve mechanism 54 for alternately selecting the positive pressure Ap generated by the positive blower 12p and the negative pressure An generated by the negative blower 12n and converting them into an oscillating air pressure Apn; and a diaphragm block 56 urged by the oscillating air pressure Apn from the rotary valve mechanism 54 to operate to supply air to a patient P. Use of the positive blower 12p and the negative blower 12n significantly reduces the load, enabling to use ones available on market, i.e., small-size, small-weight, low-consumption blowers.

Abstract: A respirator system is composed of a blower unit for supplying and vacuuming air, a control valve for selecting a positive pressure and a negative pressure from the blower unit to send a vibrating air pressure, a diaphragm for vibrating in connection to the vibrating air pressure to send respiration gas to a patient, and a hollow housing partitioned by the diaphragm into a first pressure chamber cooperating with the vibrating air pressure and a second pressure chamber cooperating with the respiration gas.In addition, the respirator system is further composed of a sensor for sensing the position of the diaphragm in the hollow housing, a pressure regulator for increasing or decreasing the positive pressure and the negative pressure, and a pressure controller for driving and controlling the pressure regulator based on data on the diaphragm position outputted from the sensor.In the respirator system, the pressure regulator increases or decreases the positive pressure and the negative pressure.