5.2.3
Inspecting weld quality
Introduction
Sterile Tube Fuser - Dry is designed to make reproducible and reliable connections,
however it is still critical to inspect the weld prior to use.
Note:
Allow the weld to cool for 2 to 3 minutes before inspection to achieve
optimal strength.
Axial alignment
Check that the tubing is axially aligned. If the tubing is offset, then the weld will be
weaker on one side. Do not use such welds. Contact Service to realign the instrument.
Uniform weld
Check that you see a flange all around the weld. This indicates that the weld is uniform
in the radial direction.
If you do not see a flange all the way around, then discard the weld. Check for the
following and weld again:
•
Make sure that correct tubings are used.
•
Make sure that correct holders are used.
•
Make sure that approved tubing size and formulation are used.
•
Insert a new blade.
•
Make sure that holders are closed and properly latched.
If you are unable to get a uniform flange, contact Service for help.
Good tensile strength
Pull gently at the weld and make a gentle twist. Make sure that the tubes are properly
clamped in both sides of the weld in order not to compromize the sterility of the tube if
any ruptures emerges.
The tubing should not come apart or start to crack.
5 Operation
5.2 Sterile Tube Fuser - Dry
5.2.3 Inspecting weld quality
Sterile Tube Fuser - Dry and Hot Lips Tube Sealer Operating Instructions 28964139 AG
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