20.500.12556/RUL-148469 Segrevanje tkiva z laserjem Er:YAG ob sočasnem hlajenju z vodnim pršenjem Heating of tissue with Er:YAG laser and simultaneous water spray cooling Laserski vir Er:YAG se v estetiki in dermatologiji uporablja za pomlajevanja mehkih tkiv. Tekom več zaporednih bliskov se vrhnjica kože močno segreje, zato je pomembno, da ta ne preseže praga poškodbe in bolečine. Zasnovali in postavili smo eksperimentalni sistem, ki nam omogoča sočasno osvetljevanje tkiva z laserskim virom Er:YAG in hlajenje z vodnim pršenjem. Pokazali smo, da z uporabo vzorčastega laserskega snopa povečamo odvod toplote v radialni smeri in s tem pohitrimo ohlajanje. Primerjali smo vpliv laserskega vira v živem in neživem biološkem tkivu in pokazali, da laserski vir deluje le v povrhnjici kože in ima podoben vpliv v živem in neživem tkivu. Poleg tega smo pokazali, da lahko z uporabo razvitega eksperimentalnega sistema dosežemo visoke vršne temperature brez hkratnega zviševanja bazne temperature površine. Er:YAG laser source is used in aesthetics and dermatology for soft tissue resurfacing. During multiple consecutive pulses, the skin's epidermis is heavily heated, therefore it is essential not to exceed the damage and pain threshold. We designed and implemented an experimental system that allows simultaneous heating of tissue with Er:YAG laser source and water spray cooling. We demonstrated that using a patterned laser beam increases radial heat dissipation, which accelerates the cooling process. We compared the effects of the laser source on living and non-living biological tissue and demonstrated that the laser source only works in the skin's epidermis and has a similar impact on both living and non-living tissue. Additionally, we demonstrated that by using the developed experimental system, we can achieve high peak temperatures without simultaneously increasing the basal surface temperature. laserska terapija Er:YAG vrhnjica termografija temperatura v tkivu hlajenje laser therapy Er:YAG epidermis thermography tissue temperature cooling true false false [T. Jan] Slovenski jezik Angleški jezik Zaključna naloga 2023-08-24 08:30:43 2023-08-24 08:30:45 2024-08-02 08:15:11 0000-00-00 00:00:00 2023 0 Ljubljana 0 XII, 38 str. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 2025-08-23 615.849.7:536.5:62-713.4(043.2) 254950 162989571 29305.pdf 29305.pdf 1 B2A2F51B78C72A640E5EEFD1F0998632 f7b8aae006fb5b64c0124f354097007bbbbee937c6bc4d3b919932dae6f6c9da b3c39289-4247-11ee-b9d7-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=172718 Fakulteta za strojništvo 0 0 0