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

Urology
Niall F DavisJohn A Thornhill

Abstract

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. 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. Irrigation channel and drainage channel flow rates were measured and correlated with their corresponding catheter CSA values. Catheter CSA and French value did not predict flow-rate characteristics, but irrigation channel CSA and drainage channel CSA were predictive. The 22Fr Rusch Simplastic catheter had the largest irrigation channel CSA (2.87 mm(2)) and drainage channel CSA (12.6 mm(2)), and had the greatest irrigation (5.27 ± 0.02 ml/s) and drainage flow rates (14.42 ± 0.22 ml/s). Twenty-two French gauge Rusch Golden catheters had the smallest irrigation channel CSA (1.34 mm(2)) and drainage channel CSA (7.82 mm(2)) and the lowest irrigation (1.83 ± 0.03 ml/s) and drainage flow rates (1.83 ± 0.03 ml/s). An alternative catheter labelling system to include overall ...Continue Reading

References

Feb 1, 1975·British Journal of Urology·R H Whitaker
Jan 18, 2006·Urology·Matthew BraaschManoj Monga
Feb 25, 2009·The Journal of Urology·Ramaswamy ManikandanMichael Williamson

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