Translator Disclaimer
Presentation
26 April 2016 Understanding the tissue interaction of new treatment modalities in laparoscopic surgery in view of safe and effective application (Conference Presentation)
Author Affiliations +
Abstract
During laparoscopic surgery, devices are require to either cut, ablate or coagulate tissue and veins with high precision and controlled lateral damage preferably in an one-for-all modality. The tissue interactions of 3 new treatment modalities were studied using special imaging techniques to obtain a better understanding the working mechanism in view of effective and safe application. The Plasmajet produces a high temperature ionized gas 'flame' directed to the tissue surface at the tip of a 4 mm diameter rigid hand piece. The Lumenis DUO CO2 laser enables endoscopic laser energy delivery through a 1 mm outer diameter flexible hollow waveguide. The 2 µm 'Thulium' laser is delivered by (standard) 400 µm diameter optical fiber. Thermal imaging and Schlieren techniques were used to assess the superficial ablative and coagulation effects these surgical instruments scanning at preset velocities and distances from the surface of biological tissues and phantoms . The CO2 was very effective in tissue ablation even at a distance up to 10 mm due to a very small diverging beam from the hollow waveguide. In contrast, the Thulium laser showed less ablation and increasing coagulation at larger distance to the tissue. The gas 'flame' of the Plasmajet spread the thermal energy over the surface for effective superficial ablation and coagulation. However, the pressure of the gas flow is substantial on the tissue surface creating turbulence and even indirect cooling. The specific ablation and coagulation effects of the three treatment modalities have to be appreciate and the effective and safe application will depend on the preference and skills of the surgeon
Conference Presentation
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Matthijs C. M. Grimbergen, John H. Klaessens, Albert J. van der Veen, and Rudolf M. Verdaasdonk "Understanding the tissue interaction of new treatment modalities in laparoscopic surgery in view of safe and effective application (Conference Presentation)", Proc. SPIE 9706, Optical Interactions with Tissue and Cells XXVII, 97060D (26 April 2016); https://doi.org/10.1117/12.2213641
PROCEEDINGS
PRESENTATION


SHARE
Advertisement
Advertisement
RELATED CONTENT

Microsecond enamel ablation with 10.6µm CO2 laser radiation
Proceedings of SPIE (February 29 2016)
CO2 Laser Vascular Welding Of Medium Diameter (4 9mm) Canine...
Proceedings of SPIE (September 11 1989)
Cw high power IR laser at 2 µm for minimally...
Proceedings of SPIE (October 16 2003)
Comparison of CO2 laser effects on nasal mucosa tissue using...
Proceedings of SPIE (September 07 1994)
New approach of Co2 laser use in plastic and dermo...
Proceedings of SPIE (January 19 1996)

Back to Top