| Title |
Optical Fiber-based 405 nm Laser Treatment for Urinary Catheter Disinfection |
| Authors |
Yeachan Lee ; Hyun Wook Kang |
| DOI |
http://doi.org/10.5207/JIEIE.2021.35.2.001 |
| Keywords |
Diffusing optical fiber; Laser therapy; Thermal simulation; Urinary catheter disinfection |
| Abstract |
Biofilms can occur to patients using indwelling urinary catheter and cause a nosocomial infection. Laser therapy is a promising method to disinfect the indwelling medical devices as an alternative to medications. However, improper irradiation of laser energy can lead to unexpected thermal damage to the urinary catheter and peripheral tissue. Therefore, the precise prediction of laser-induced heat generation is essential to apply the laser treatment for urinary catheter disinfection. The aim of the current study is to investigate the laser-induced temperature changes in a urinary catheter model by using simulation. The simulation results showed spatial-temporal developments of the temperature induced by 405 nm laser irradiation. The results confirmed that the irradiation with 3 W power for 125 s could be applied to disinfect the urinary catheter with no or minimal thermal damage to the surrounding tissue. Thus, the proposed numerical simulation model can predict the laser-induced heat generation in the urinary catheter and tissue during the laser irradiation in conjunction with the diffusing fiber and can suggest the favorable treatment conditions with no or minimal thermal damage to the catheter and tissue. |