Medical Devices
It’s hard to imagine medical device manufacturing without leak testing. Leaks in medical devices can lead to serious consequences, including infections, inaccurate drug delivery, device failure and patient death. As a rule, LeakMaster recommends 100% production leak testing of medical devices that encounter any bodily fluids, such as blood, urine or medication. Some of the most commonly leak tested medical devices include:
- Single or Multi-Lumen Catheters
- Catheter Luer fittings
- Microfluidic Chips and reagent cartridges
- IV Pumps
- Fluid Bags
- Check Valves and Stopcocks
- Tubing Sets
- Fully sealed IP67 or IPXX medical devices
- Respiratory devices
Several leak testing methods are employed for medical device leak testing, including water immersion, pressure or vacuum decay and mass-flow air testing, and tracer gas. LeakMaster manufactures all air testing methods, and focuses on air leak testing solutions due to their lower cost, ease of use and testing accuracy including:
Pressure Decay
This popular air leak test method involves pressurizing the medical device with a specified air pressure. After a stabilization period, the instrument monitors for any decrease in air pressure over time, indicating a leak.Vacuum Decay
Operating opposite to pressure decay, with vacuum decay the part is evacuated and monitored for a pressure rise (loss of vacuum) indicating a leak. A secondary method for sealed components places the medical device in a sealed chamber and extracts surrounding air. An increase in chamber pressure suggests a leak in the test part.For peace of mind, all LeakMaster leak testers can perform a pressure decay test and most can be optioned to perform a vacuum decay leak test as well. From our budget friendly pressure decay Defender to our configurable, flagship Guardian, LeakMaster provides excellent value and a range of test possibilities within one instrument.
Mass Flow
The mass-flow technique measures the rate at which air flows through a medical device or test piece. With this technique the device is pressurized. Once the pressure is relatively stable, the mass-flow sensor measures the amount of air mass needed to maintain internal device pressure. Continuous air flow into the medical device indicates a leak. A higher air requirement indicates a larger leak.Our Guardian and UltraFlow leak testers can be configured as pressure decay and mass-flow combination units, providing exceptional value and a range of test options within the same instrument.
For expert advice and quality leak testing solutions, there’s only one LeakMaster.