Leak Test of Rubber Gaskets

The cuff leak test: does it "leak" any information?

Post-extubation stridor and upper-airway obstruction are multifactorial in etiology and can occur as a result of laryngotracheal edema, intubation trauma, excessive cuff pressure with mucosal ulceration, and prolonged intubation with secondary inflammation and granuloma formation.1 Cuff leak tests (CLTs) were introduced in an attempt to predict post-extubation upper-airway obstruction and reduc...

Limited value of the cuff-leak test.

Stridor following tracheal extubation occurs in approximately 5% of all patients, and approximately 1% of all patients require reintubation for upper-airway obstruction.1 Patients at increased risk for stridor and upper-airway obstruction following extubation include female patients; children,2 particularly those with acute respiratory-tract infections (croup);3 patients who have incurred facia...

How to leak test multi-lumen catheters.

Statistical Regularity of Apollonian Gaskets

Apollonian gaskets are formed by repeatedly filling the gaps between three mutually tangent circles with further tangent circles. In this paper we give explicit formulas for the the limiting pair correlation and the limiting nearest neighbor spacing of centers of circles from a fixed Apollonian gasket. These are corollaries of the convergence of moments that we prove. The input from ergodic the...

How to leak test sealed packages.

The third in a series of guides intended to help medical device engineers in specific problem areas.