Key result
Simulation analysis of the Kyorin infrared coagulator revealed that the flat probe tip achieved better deep heat conduction (4°C higher at 6 mm depth) and lower surface temperatures (64°C lower) compared to the tapered tip.
Why the study?
The effects of probe tip shape of the Kyorin infrared coagulator on irradiance distribution and myocardial thermal changes had not been assessed.
Does the shape of the KIRC probe tip affect the irradiance distribution and thermal changes in myocardial tissue models?
Does the shape of the KIRC probe tip affect the irradiance distribution and thermal changes in myocardial tissue models?
Simulation analysis demonstrates that a flat probe tip for the Kyorin infrared coagulator achieves better deep tissue heat conduction with lower surface temperatures than a tapered tip, which may help prevent surface carbonization during arrhythmia ablation.
The Kyorin infrared coagulator (KIRC) using an infrared halogen lamp is being developed for the surgical treatment of arrhythmia, infective endocarditis, and other disorders; however, no assessments have been conducted on the effects of the shape of its probe tip on irradiance distribution of the irradiation light on the tissue contact surface, or on thermal changes in the myocardial tissue. Therefore, in the present study we performed simulation (analysis of irradiance distribution on tissue contact surface and thermal analysis of myocardial tissue) with differing KIRC probe tip shapes, and assessed the thermal changes in tissue under the infrared irradiation.
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Nakajima et al. (2021) studied Arrhythmia (simulation model). Kyorin infrared coagulator (KIRC) flat probe tip vs. Tapered probe tip was evaluated on Thermal changes in myocardial tissue (temperature at surface and 6 mm depth). Simulation analysis of the Kyorin infrared coagulator revealed that the flat probe tip achieved better deep heat conduction (4°C higher at 6 mm depth) and lower surface temperatures (64°C lower) compared to the tapered tip.
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