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Title:
ABLATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2022/091224
Kind Code:
A1
Abstract:
Provided is an ablation system capable of improving the efficiency of cauterization during an ablation. This ablation system 5 comprises an electrode needle 1, and a power source device 3 having a control unit 33 and a power source unit 32 for supplying power Pout. During the ablation, the control unit 33 measures an impedance value Z between an electrode needle 1 and a counter electrode plate 4 while counting a brake number Nb, which is the number of times the impedance value Z has exceeded a threshold value Zth and a transition to a brake state has occurred. If the brake number Nb has reached the threshold value Nth, the control unit 33 stops automatically the supply of power Pout, thereby ending the ablation automatically. If the brake number Nb has not reached the threshold value Nth, the control unit 33 lowers or stops temporarily the supply of the power Pout by using as a criterion the power supply value Pout 1 at which the transition to the brake state occurs, and resumes the supply of the power Pout in a state wherein the supply value for the power Pout has been set to a power supply value Pout 2, which is obtained through a reduction by a value equivalent to a predetermined decrease value ΔP1 from the power supply value Pout 1.

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Inventors:
MIYAMOTO HISAO (JP)
Application Number:
PCT/JP2020/040275
Publication Date:
May 05, 2022
Filing Date:
October 27, 2020
Export Citation:
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Assignee:
JAPAN LIFELINE CO LTD (JP)
International Classes:
A61B18/12
Foreign References:
JP2019041782A2019-03-22
JP2010512181A2010-04-22
JP2008510507A2008-04-10
JP2002065690A2002-03-05
US20180344390A12018-12-06
Attorney, Agent or Firm:
TSUBASA PATENT PROFESSIONAL CORPORATION (JP)
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