ABLATION SYSTEM

To provide an ablation system capable of improving convenience.SOLUTION: An ablation system 5 includes: an electrode needle 1 for percutaneously puncturing an affected part 90 in the body; and a power source device 3 having a power source part 32 for supplying power Pout for performing ablation betw...

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Bibliographic Details
Main Author MIYAMOTO HISAO
Format Patent
LanguageEnglish
Japanese
Published 22.03.2019
Subjects
DIAGNOSIS
HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
MEDICAL OR VETERINARY SCIENCE
SURGERY
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Summary:To provide an ablation system capable of improving convenience.SOLUTION: An ablation system 5 includes: an electrode needle 1 for percutaneously puncturing an affected part 90 in the body; and a power source device 3 having a power source part 32 for supplying power Pout for performing ablation between the electrode needle 1 and a counter electrode plate 4, and a control part 33 for controlling a power Pout supply operation in the power source part 32. During the ablation, the control part 33 measures an impedance value Z between the electrode needle 1 and the counter electrode plate 4, and counts the frequency of a break state (the number of times of break Nb) in which the impedance value Z exceeds a threshold Zth (first threshold). When the number of times of break Nb reaches a threshold Nth (second threshold), the control part ends the ablation automatically by stopping the supply of the power Pout automatically.SELECTED DRAWING: Figure 4 【課題】利便性を向上させることが可能なアブレーションシステムを提供する。【解決手段】アブレーションシステム５は、体内の患部９０に対して経皮的に穿刺される電極針１と、この電極針１と対極板４との間にアブレーションを行うための電力Ｐoutを供給する電源部３２と、この電源部３２における電力Ｐoutの供給動作を制御する制御部３３とを有する電源装置３とを備えている。制御部３３は、アブレーションの際に、電極針１と対極板４との間のインピーダンス値Ｚを測定すると共に、このインピーダンス値Ｚが閾値Ｚth（第１閾値）を越えたブレイク状態の回数（ブレイク回数Ｎｂ）をカウントし、このブレイク回数Ｎｂが閾値Ｎth（第２閾値）に到達した場合には、電力Ｐoutの供給を自動的に停止させることにより、アブレーションを自動的に終了させる。【選択図】図４
Bibliography:Application Number: JP20170164461