초록 ▼

A microprocessor controlled ventilator controls a patient\s breathing selectively. In a preferred aspect, the ventilator utilizes intratracheal pulmonary ventilation and a reverse thrust catheter to provide all patient inspiration. The microprocessor connects to a pneumatic subsystem which includes

A microprocessor controlled ventilator controls a patient\s breathing selectively. In a preferred aspect, the ventilator utilizes intratracheal pulmonary ventilation and a reverse thrust catheter to provide all patient inspiration. The microprocessor connects to a pneumatic subsystem which includes a variety of sensors and actuators and the catheter disposed in the patient\s trachea. A feedback control loop provides a basis for controlling selected actuators within the subsystem to control the patient\s breathing. The microprocessor provides the selective venting of expiration gases, and the selective mixing of treatment gases, such as anesthesia. The ventilator has a plurality of possible ventilating modes, each selectable by the user, thereby reducing the number of hospital equipment needed to all forms of ventilation required by a patients.

대표청구항 ▼

A ventilator system, comprising: A. a pneumatic subsystem for receiving one or more gases and for establishing a flow path to a patient insert at a distal end, B. at least one sensor, C. at least one actuator operatively coupled to the pneumatic subsystem; and D. a microprocessor subsystem connected

A ventilator system, comprising: A. a pneumatic subsystem for receiving one or more gases and for establishing a flow path to a patient insert at a distal end, B. at least one sensor, C. at least one actuator operatively coupled to the pneumatic subsystem; and D. a microprocessor subsystem connected to receive information from the sensor and to control the actuator, the microprocessor subsystem having means for selecting at least one ventilation mode and for controlling gas flow in the flow path of the pneumatic subsystem in a manner corresponding to the mode and for controlling the actuator in response to signals generated from the sensor to vary at least one of the group consisting of inspiratory-to-expiratory ratio (I:E), (ii) a respiratory rate and the I:E ratio, and (iii) an intratracheal pulmonary flow to establish predetermined carinal pressures in a patient.