Kink Resistance Under Flow – Short and Long Term
Determine the kink resistance of a single lumen catheter or medical tubing for short term (< 1h) or long term (> 1h) use. Kink is defined when the bending causes a decrease in flow by more than 50 %.
- Kink test tool sized for the test device (short or long term)
- Tensile tester (short term)
- Constant Pressure System (long term)
- Calibrated Calipers
- Calibrated Flow meter
- Data acquisition system
- Temperature controlled test chamber
- Calibrated Thermometer
Short term: Corrected mean value of plate distance with 50 % of full flow
Long term: Kink length at which 50 % of the samples have kinked
Any single lumen catheter or medical tubing
BS EN 13868:2002
Catheters. Test methods for kinking of single lumen catheters and medical tubing
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