The engineering behind TruBlue.
A step-by-step walk-through of the physics and engineering principles behind the 445 nm platform — wavelength, absorption, and pulse modes.
- 01 · Wavelength
- 445 nm
- 02 · Absorption
- ~10× CO₂
- 03 · Modes
- PentaPulse · 5
STEP 1 · WAVELENGTH
Why 445 nm?
Blue-diode lasers operating at 445 nm occupy a unique window in the visible spectrum. Unlike 532 nm KTP lasers — which require frequency-doubling of an infrared source — or 980 nm diode lasers whose energy disperses into water, the 445 nm wavelength couples directly into oxyhemoglobin and melanin with exceptional efficiency. The result is precise, shallow tissue interaction with minimal collateral thermal spread.
STEP 2 · ABSORPTION
Oxyhemoglobin absorption
Oxyhemoglobin exhibits a sharp absorption peak in the 418–445 nm range. At 445 nm, TruBlue achieves absorption coefficients roughly 10× higher than CO₂ lasers operating in water-rich tissue, enabling rapid hemostasis with sub-millimeter precision. This chromophore selectivity means energy is deposited where it matters — at the vascular target — leaving surrounding epithelium largely unaffected.
STEP 3 · PENTAPULSE
PentaPulse modes
The TruBlue 445 nm platform ships with five emission modes engineered for procedural flexibility: • CW (Continuous Wave) — sustained emission for extended tissue contact • Single Pulse — discrete burst delivery • Pulsed — configurable on/off duty cycles • PeakPulse — 24 W peak output for demanding applications • PowerPulse — 16 W pulsed mode balancing precision and power Mode selection is performed on the device console. Refer to the Instructions for Use for clinical setup parameters.
The same physics — in a device surgeons trust.
The WOLF TruBlue Pro brings wavelength and PentaPulse together in a single, fiber-delivered 445 nm platform.
See TruBlue Pro in your OR.
A.R.C. clinical specialists coordinate on-site demos with your team. Schedule a session to evaluate TruBlue Pro against your current platform.