The Variable Flow Characteristics for Different Brands of 3-Way Urinary Catheters: Proposing an Alternate and Accurate Standardised Labelling System.

Objective: To evaluate an alternative catheter labelling approach for 3-way catheters based on the drainage channel and irrigation channel cross-sectional area (CSA), which impacts catheter flow rate characteristics.

Materials And Methods: Three-way 22Fr catheters from Bard (Bard Limited), Rusch Simplastic (Teleflex Medical), Dover (COVIDIEN), and Rusch Golden were included in the study. Irrigation channel, drainage channel, and overall CSAs were digitally measured with an image-processing program.

Preventing Urethral Trauma from Inadvertent Inflation of Catheter Balloon in the Urethra during Catheterization: Evaluation of a Novel Safety Syringe after Correlating Trauma with Urethral Distension and Catheter Balloon Pressure.

Purpose: We investigated urethral diametric strain and threshold maximum inflation pressure for rupture during inadvertent inflation of a catheter anchoring balloon in the urethra. In addition, we evaluated a novel safety device to prevent trauma based on these parameters.

Materials And Methods: Inflation of a urethral catheter anchoring balloon was performed in the bulbar urethra of 21 ex vivo porcine models using 16Fr catheters.