Method and apparatus for controlling a pressure level in a respi

Details Method and apparatus for controlling a pressure level in a respi Method and apparatus for controlling a pressure level in a respi

1983-03-28

1985-06-04

Recla, Henry J.

Surgery

Respiratory method or device

Means for supplying respiratory gas under positive pressure

12820714, A61M 1600

Patent

active

045208123

ABSTRACT:
A method of and apparatus for producing a controlled pressure level in a respirator for human patients which is equipped with a tracheal tube 3 connected to the respirator and connectable to the trachea, comprises producing an oscillatory gas stream by means of two opposite gas jets in an attachment tube 4 which has two end openings. By controlling the pressure and/or frequency of the gas jets, a varying pressure level propagating into the tracheal tube is modulated onto the gas stream. The respirator for carrying out the method comprises two gas jet pipes 20, 21 having nozzle tips 24, 25 of which one discharges or points within the attachment tube 4 substantially in the direction of the tracheal tube 3 and the other substantially in the opposite direction.

REFERENCES:
patent: 3485243 (1969-12-01), Bird et al.
patent: 3556097 (1971-01-01), Wallace
patent: 3993059 (1976-11-01), Sjostrand
patent: 4030492 (1977-06-01), Simbruner
patent: 4265237 (1981-05-01), Schwanbom et al.
patent: 4270530 (1981-06-01), Baum et al.

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