Endotracheal tube adapters

An endotracheal tube adapter comprises:

• a body defining a sidewall that extends along a longitudinal axis from a first longitudinal end of the endotracheal tube adapter to a second longitudinal end of the endotracheal tube adapter;
• an outlet at the first longitudinal end of the body;
• a first inlet at the second longitudinal end of the body, the first inlet configured to attach to a proximal end of an endotracheal tube to fluidically connect a lumen of the endotracheal tube to an interior of the body defined by the sidewall of the body;
• a second inlet along the sidewall, the second inlet on a first lateral side of a cylindrical portion of the body between the first longitudinal end of the body and the second longitudinal end of the body, the second inlet being substantially flush with the cylindrical portion of the body;
• and
• a plurality of ribs on a second lateral side of the cylindrical portion of the body opposite of the second inlet, each rib of the plurality of ribs (i) extending parallel to the longitudinal axis and (ii) forming a raised surface extending from the cylindrical portion,
• wherein the outlet is configured to attach to a vacuum source for drawing (i) a first portion of air or gas through the first inlet, then through the interior of the body, and then through the outlet toward the vacuum source and (ii) a second portion of air or gas through the second inlet, then through the interior of the body, and then through the outlet toward the vacuum source.