发明名称 |
Mono-phasic action potential electrogram recording catheter, and method |
摘要 |
Catheters and methods for obtaining monophasic action potential ("MAP") electrograms include a flexible catheter body defining a longitudinal axis, and a distal assembly affixed to the catheter body distal end defining a distal tip. The distal assembly has at least three MAP recording electrodes, and at least one reference electrode for determining reference potential. The recording electrodes are each positioned a radial distance from the longitudinal axis in at least three different radial directions, defining a recording geometry substantially having radial symmetry. The reference electrode is a longitudinal distance from the recording geometry. Optional features include a steerable catheter shaft, one or more radio-frequency ablation electrodes, and a dedicated pacing electrode. Different possible embodiments include a dome housing having the recording electrodes in a fixed spatial arrangement, and a distal loop assembly having an array of electrodes on at least three flexible loop elements.
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申请公布号 |
US8571626(B2) |
申请公布日期 |
2013.10.29 |
申请号 |
US201213604139 |
申请日期 |
2012.09.05 |
申请人 |
MEDTRONIC ABLATION FRONTIERS LLC;LAU MICHAEL;WERNETH RANDELL L.;CORVI TIMOTHY J.;BHOLA SUMITA;STEWART MARK T.;HAISSAGUERRE MICHEL;HOCINI MELEZE |
发明人 |
LAU MICHAEL;WERNETH RANDELL L.;CORVI TIMOTHY J.;BHOLA SUMITA;STEWART MARK T.;HAISSAGUERRE MICHEL;HOCINI MELEZE |
分类号 |
A61B5/042;A61B18/14;A61N1/05 |
主分类号 |
A61B5/042 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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