Process and apparatus for the detection of catheter-tissue contact, and also of interactions with the tissue catheter ablation
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United States of America Patent
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Oct 16, 2001
Grant Date -
N/A
app pub date -
Dec 23, 1999
filing date -
Apr 1, 1997
priority date (Note) -
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status (Latency Note)
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Abstract
In a process and an apparatus for the detection of the contact and/or the interaction of a catheter arranged in a patient's vessel, in particular in a patient's blood stream, with the patient's tissue, in order to contribute to an improved detection of this contact or to make it possible for the first time to permit statements during an ablation process regarding the ablation depth or regarding the interaction with the tissue, a device is provided for the detection of a voltage at at least one catheter electrode, wherein the voltage between the catheter electrode and a further electrode is measured, and wherein the further electrode is a neutral electrode in contact with the patient's body or a further electrode installed on the catheter.
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