Surgery – Respiratory method or device – Means for supplying respiratory gas under positive pressure
Patent
1996-05-16
1997-12-02
Millin, Vincent
Surgery
Respiratory method or device
Means for supplying respiratory gas under positive pressure
12820418, 12820422, 12820423, 12820714, A61M 1600
Patent
active
056924976
ABSTRACT:
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.
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Schnitzer Jay J.
Thompson John E.
Children's Medical Center Corporation
Millin Vincent
Srivastava V.
The General Hospital Corporation
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