초록 ▼

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

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.

대표청구항 ▼

A high frequency oscillating ventilator comprising: a source of gas; a housing including a magnet and having a diaphragmatically sealed piston mounted therein; means conducting the flow of gas from said gas source to the space within said housing on the first side of said piston; a coil mounted to t

A high frequency oscillating ventilator comprising: a source of gas; a housing including a magnet and having a diaphragmatically sealed piston mounted therein; means conducting the flow of gas from said gas source to the space within said housing on the first side of said piston; a coil mounted to the first side of said piston within said housing; means in said housing for directing the flow of gas delivered by said gas source to the first side of said piston around said coil and through said housing to the atmosphere, thereby cooling said coil; means connecting said gas source, the space on the second side of said piston, and the airway of a patient; and means for delivering current to said coil operable to reverse the polarity of the current in said coil, thereby causing said coil to move back and forth within said housing relative to said magnet to alternately produce a positive and negative pressure wave in the flow of gas in said connecting means.