Split tip electrode catheter
First Claim
1. An electrode catheter for cardiac electrophysiology comprising:
- an elongated body suitable for intravascular insertion surrounding a plurality of electrode lead wires and a tip section at a distal end of the catheter body, said tip section comprising;
a composite electrode at a distal end of the tip section having a distal portion comprising an external surface and a proximal portion which forms a recessed stem, said composite electrode comprising a plurality of longitudinally adjacent electrode members, each electrode member having an external surface and a recessed stem portion, each electrode member being electrically connected to an associated electrode lead wire and electrically isolated from adjacent electrode members; and
a cup electrode spaced proximally from a proximal end of the distal portion of the composite electrode, said cup electrode being electrically connected to an associated electrode lead wire and comprising a generally cylindrical side wall that forms a ring electrode and a cavity that receives and fixedly secures at least a portion of the stem of the composite electrode, said cup electrode being electrically isolated from the composite electrode.
1 Assignment
0 Petitions
Accused Products
Abstract
An electrode catheter for cardiac electrophysiology. An elongated body suitable for intravascular insertion surrounds a plurality of electrode lead wires. A composite electrode comprises a plurality of tip electrodes and defines a margin along a proximal edge. Each tip electrode is electrically connected to an associated electrode lead wire and is adjacent to another tip electrode on at least one side along an axis of the elongated body. Each tip electrode is separated from the another tip electrode by insulation. A cup electrode is electrically connected to an associated electrode lead wire and defines a cavity shaped to overlap the margin of the composite electrode. The cup electrode is fixedly secured to the composite electrode and to a distal end of the elongated body and is separated from the composite electrode by insulation.
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Citations
15 Claims
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1. An electrode catheter for cardiac electrophysiology comprising:
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an elongated body suitable for intravascular insertion surrounding a plurality of electrode lead wires and a tip section at a distal end of the catheter body, said tip section comprising; a composite electrode at a distal end of the tip section having a distal portion comprising an external surface and a proximal portion which forms a recessed stem, said composite electrode comprising a plurality of longitudinally adjacent electrode members, each electrode member having an external surface and a recessed stem portion, each electrode member being electrically connected to an associated electrode lead wire and electrically isolated from adjacent electrode members; and a cup electrode spaced proximally from a proximal end of the distal portion of the composite electrode, said cup electrode being electrically connected to an associated electrode lead wire and comprising a generally cylindrical side wall that forms a ring electrode and a cavity that receives and fixedly secures at least a portion of the stem of the composite electrode, said cup electrode being electrically isolated from the composite electrode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification