US 12,408,975 B2
Radio frequency ablation medical device
Jung-hoon Park, Gyeonggi-do (KR); Sang-soo Lee, Seoul (KR); and Daesung Ryu, Seoul (KR)
Assigned to UNIVERSITY OF ULSAN FOUNDATION FOR INDUSTRY COOPERATION, Ulsan (KR); and THE ASAN FOUNDATION, Seoul (KR)
Filed by UNIVERSITY OF ULSAN FOUNDATION FOR INDUSTRY COOPERATION, Ulsan (KR); and THE ASAN FOUNDATION, Seoul (KR)
Filed on Jun. 17, 2022, as Appl. No. 17/807,605.
Application 17/807,605 is a continuation of application No. PCT/KR2020/018704, filed on Dec. 18, 2020.
Claims priority of application No. 10-2019-0171200 (KR), filed on Dec. 19, 2019.
Prior Publication US 2022/0313354 A1, Oct. 6, 2022
Int. Cl. A61B 18/14 (2006.01); A61B 18/00 (2006.01); A61F 2/04 (2013.01)
CPC A61B 18/1492 (2013.01) [A61F 2/04 (2013.01); A61B 2018/00714 (2013.01); A61B 2018/00732 (2013.01); A61B 2018/1475 (2013.01); A61B 2562/0271 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A radio frequency ablation medical device comprising:
a guide wire;
a catheter configured to be movable to a lesion site of a tissue along the guide wire and having at least one electrode configured to generate heat according to an application of power;
a stent configured to be unfolded when protruding out of the catheter through an end portion of the catheter or recaptured in the end portion of the catheter when entering an inside of the catheter, the stent serving to transfer heat generated by the electrode to the lesion site in an unfolded state when getting out of the catheter;
a thermal detection sensor for measuring an electrode temperature value of the electrode when the power is applied to the electrode; and
a radio frequency generator for applying power to the electrode,
wherein the radio frequency generator controls the electrode temperature value of the electrode depending on an expansion length of the unfolded stent so that the electrode temperature value received from the thermal detection sensor satisfies a preset temperature compensation range.