Oscillating ventilator and method

Details Oscillating ventilator and method Oscillating ventilator and method

1985-09-13

1988-01-19

Coven, Edward M.

Surgery

Respiratory method or device

Means for supplying respiratory gas under positive pressure

12820425, A61M 1600

Patent

active

047199105

ABSTRACT:
A high frequency oscillating ventilator. A flow of gas is conducted from a gas source to a high frequency oscillator. The high frequency oscillator comprises a housing including a magnet and having a diaphragmatically sealed piston mounted therein, an inlet connecting the space within the housing on the first side of the diaphragm to the gas conducting means, and a coil mounted to the first side of the diaphragm. Circuitry is provided which is operable to reverse the polarity of the flow of the current in the coil, thereby causing the diaphragm to move back and forth within the housing. A tube connecting the space on the second side of the diaphragm to the gas source and the patient's airway is provided. Also disclosed is a method of ventilating a patient with the high frequency oscillating ventilator, and a double lumen endotracheal tube for use in connection therewith.

REFERENCES:
patent: 3225758 (1965-12-01), Morch
patent: 3863082 (1975-01-01), Gillott et al.
patent: 4076021 (1978-02-01), Thompson
patent: 4592349 (1986-06-01), Bird

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