Inspiratory tube for a ventilator

Details Inspiratory tube for a ventilator Inspiratory tube for a ventilator

1998-08-25

2000-11-28

Weiss, John G.

Surgery

Respiratory method or device

Means for supplying respiratory gas under positive pressure

12820024, 12820714, 128971, A61M 1600, A62B 700, A62B 900

Patent

active

061521329

ABSTRACT:
An inspiratory tube intended to serve as at least part of an inspiratory line in a ventilator, has a tube wall, a distal end, a proximal end, a gas flow channel for carrying a flow of breathing gas and an opening in the wall at a specific distance from one end of the inspiratory tube, this opening being adapted for connection to an expiratory device (40). The inspiratory tube has a constriction in the gas flow channel between distal end of the inspiratory tube and the opening, a first channel that proceeds within the tube wall, generally parallel to the gas flow channel, and which opens into the gas flow channel between the distal end of the inspiratory tube and the constriction, and a second channel that proceeds within the wall, generally parallel to the gas flow channel, which opens into the gas flow channel between the constriction and the opening. The channels can be connected to a pressure gauge for determining the rate of flow and pressure of gas flowing in the gas flow channel.

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