System And Method For Detecting Electrode-Tissue Contact

PURPOSE: A system and a method for detecting contact between an electrode and tissue is provided to detect an electrode-tissue contact by comparing electrode-tissue contact using a contact electrode to a reference electrode having no contact with tissue. CONSTITUTION: A system for detecting contact...

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Bibliographic Details
Main Authors GOLDIN ALEXANDER, LEVIN MICHAEL, MATCOVITCH AVRAHAM
Format Patent
LanguageEnglish
Korean
Published 17.01.2002
Edition7
Subjects
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Summary:PURPOSE: A system and a method for detecting contact between an electrode and tissue is provided to detect an electrode-tissue contact by comparing electrode-tissue contact using a contact electrode to a reference electrode having no contact with tissue. CONSTITUTION: A system for detecting contact of an electrode with tissue comprises a catheter(20), a reference electrode(25), and a contact detection circuit(25). The catheter(20) includes a signal generator(28) for sending test signals to the contact electrode and to the reference electrode, and a circuit to measure a differential electrical response to the test signals. The differential electrical response indicates the contact of the contact electrode with tissue. The contact electrode is positioned at the catheter distal tip. The reference electrode is positioned on the catheter. The reference electrode is protected from making contact with tissue. 전극-조직 접촉을 검출하는 시스템은 위치 전극 및 말단 팁 전극을 구비한 카테터를 포함한다. 카테터는 조직과 접촉되는 것을 방지하는 기준 전극을 또한 포함한다. 시스템은 신호를 말단 팁과 기준 전극으로 전송하는 신호 발생기를 또한 포함한다. 조직 접촉은 팁 전극에서 복귀 전극으로의 신호와 기준 전극에서 복귀 전극으로의 신호를 비교함으로써 검출된다. 절제 에너지는 조직과의 전극의 접촉이 검출되면 말단 팁 전극으로 보내질 수 있다.
Bibliography:Application Number: KR20010040238