Marking of medical catheters

In cooperation with a Czech integrator, we designed a solution for catheter marking for the customer. Part of the assignment is to mark the catheter with a total length of approx. 1350 mm (marking is done in 1200 mm length) with a length scale on both sides. The catheter material is PA6228 (internal) and PUR 5841 (external). Maximum marking time 10 - 12 seconds.

The Coherent PowerLine E8 QT UV laser in the following configuration was chosen for the project:

The Coherent PowerLineE 8 QT is a compact, air-cooled Class IV subsystem designed for easy integration, operational reliability and fast field service. In addition to the laser and scanning optics, it includes an integrated power sensor, mechanical safety shutter and visible positioning laser. The system components are housed in a sealed enclosure that uses filtered, recirculated air to minimize external contamination. If service is required, various system components such as the power sensor, cleaning unit, moisture sensors and scanning optics can be replaced in the field without exposing other system components to contamination. This allows most servicing to be performed on-site at the customer's site.

Key advantages

• Powerful UV laser marker (7 W @ 45 kHz on workpiece)
• Efficient air cooling
• Integrated power sensor, mechanical safety shutter and positioning laser
• Air recycling and filtration for long life of UV components

Conclusion

The marking layout was recreated in the Visual Laser Marker editing tool. Due to laboratory conditions, testing was only performed on a portion of the catheter approximately 200 mm in length.

The upper side

Bottom side