专利名称：Apparatus and method for measuring a
plurality of electrical signals from the bodyof a patient
发明人：Govari, Assaf申请号：EP02251741.1申请日：20020312公开号：EP1240868A1公开日：20020918
专利附图：
摘要：An apparatus for measuring electrical signals emanating from a body of apatient, and, in particular, from the patient's heart, comprises a catheter having an
electrode array, preferably on its distal end. The apparatus of the invention furthercomprises a first amplifier for measuring a voltage from a first electrode of the array, anda cascade of differential amplifiers, each of which measures a voltage difference betweentwo successive electrodes in the array. The voltage, Vn, at electrode n is given by theexpression: wherein a1 is the voltage at the first electrode as measured by the firstamplifier and each ai is a differential voltage between electrode i and electrode (i-1) ofthe array as measured by the differential amplifiers. The catheter electrode arraypreferably comprises at least one contact electrode and a plurality of non-contactelectrodes, the first amplifier is preferably used to measure the signal at the contactelectrode and the amplifier cascade is preferably used to measure the signals from thenon-contact electrodes. The catheter further preferably comprises at least one positionsensor, preferably, an electromagnetic position sensor.
申请人：Biosense, Inc.
地址：One Johnson & Johnson Plaza New Brunswick, New Jersey 08933-7003 US
国籍：US
代理机构：Mercer, Christopher Paul
更多信息请下载全文后查看
因篇幅问题不能全部显示，请点此查看更多更全内容