Endobronchial tubes 37,39,41

Endobronchial tubes, often used in anesthesia and critical care settings, are specialized tubes designed for placement into the mainstem bronchi to manage the airway during certain medical procedures. The numbers 37, 39, and 41 typically refer to the French size of the endobronchial tube.

Here's a breakdown of what these numbers indicate:

1. 37 French (Fr):

   • The number 37 indicates the French size of the tube. French sizes are a unit of measurement for the outside diameter of the tube. In this case, a 37 Fr endobronchial tube has an outside diameter suitable for the intended use in medical procedures.

2. 39 French (Fr):

   • Similarly, a 39 Fr endobronchial tube has a slightly larger outside diameter compared to a 37 Fr tube. The choice of tube size depends on the patient's anatomy, the procedure being performed, and the preferences of the healthcare provider.

3. 41 French (Fr):

   • A 41 Fr endobronchial tube has a larger outside diameter compared to both the 37 Fr and 39 Fr tubes. The selection of tube size is often determined by the specific requirements of the clinical situation.

It's important to note that the French size is just one aspect of the endobronchial tube, and other features, such as length, curvature, and specific design elements, also play a crucial role in selecting the appropriate tube for a given procedure.