Laser tissue welding is a thermal process for binding two tissues together. Optical and thermal models exist that allow the temperatures of laser irradiated tissues to be calculated. However, a rate process model is required to relate the estimated time-temperature histories to weld strengths. This paper proposes a rate process model based on a broad range of parametric welding experiments. Aorta, intestine, and digested carotid arteries were patch welded at constant pressure using either constant temperature (3-15min at 60-80 degrees C) or pulsed laser heating (5ms, 3Hz, 5-30 pulses).
S. A. Prahl, S. D. Pearson. Rate Process Models for Thermal Laser Welding. SPIE Proceedings of Laser-Tissue Interaction VIII, Feb. 8-14, San Jose, CA, 1997.