08/09/2026
1470 nm versus 1940 nm in EVLA: wavelength is only part of the equation
The 1470 nm and 1940 nm wavelengths both target water, but 1940 nm has greater water absorption. This can permit operation at lower power settings, depending on the laser system and procedural protocol.
Greater absorption, however, should not automatically be interpreted as clinical superiority.
Published literature indicates that thermal energy distribution differs between 1470 nm and 1940 nm, but there remains limited evidence of a clinically significant difference when treating incompetent saphenous veins.
Meaningful clinical comparison should consider:
• Vein diameter and wall thickness
• Applied power
• Linear endovenous energy density
• Fibre geometry
• Pullback technique
• Laser-to-fibre compatibility
• Long-term ablation outcomes—not only early postoperative findings
Medisol’s portable GBOX platform can be configured with 1470 nm, 1940 nm or combined 1470 + 1940 nm wavelengths, allowing clinicians to select a system appropriate to their workflow and intended application.
To discuss available configurations, contact [email protected].
For healthcare professionals only. Product availability, indications and regulatory status may vary. Refer to applicable product labelling and instructions for use.