Endotracheal tube connector and method for optimizing the breath

Details Endotracheal tube connector and method for optimizing the breath Endotracheal tube connector and method for optimizing the breath

1996-10-02

1998-02-03

Lewis, Aaron J.

Surgery

Respiratory method or device

Means for quickly connecting or disconnecting apparatus...

12820714, 128912, A62B 904

Patent

active

057133484

ABSTRACT:
A method for optimizing the breathing ability of an intubated patient is based on an evaluation of the expirational flow characteristics of an endotracheal tube connector. It has been found that an increase in the amount of work required for the expirational portion of the breathing cycle while minimizing the inspirational work of a patient improves the patient's blood chemistry and the absorption of oxygen and/or medication by the lung.
The method may be obtained by using an improved connector which includes an annular gas inlet and an annular gas outlet which share a common longitudinal axis. The inlet has an inside diameter which is about 2-1/2 to 3 times greater than the inside diameter of the outlet and is adapted to receive a flexible tube having an outside diameter which is approximately the same as the inside diameter inserted therein. The use of a shortened annular gas inlet which has a length which is less than its diameter, and preferably about 1/4 to 1/3 of its diameter, slightly increases the work of expiration.

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