Catheter with staggered electrodes spine assembly
AssigneeBiosense Webster (Israel) Ltd.
InventorsCesar Fuentes-Ortega, Jamie Malinaric, Lior Botzer
Life of this patent
Estimating the term…
Abstract
An electrophysiology catheter with a distal electrode assembly having covered spine carrying a plurality of microelectrodes. The position of the microelectrodes on each spine is staggered relative to microelectrodes on adjacent spines so as to minimize the risk of electrodes on adjacent spines touching each other during use of the catheter. The staggered electrode configuration provides the distal electrode assembly with a greater effective contact surface because the effective concentric electrode arrays is increased or at least doubled.
Claims20
An electrophysiology catheter comprising:
- an elongated body;
- a distal electrode assembly comprising:
- a proximal stem defining a circumference around the longitudinal axis;
- and
- a plurality of spines emanating from the proximal stem and diverging at their distal ends, the plurality of spines alternating between first spines and second spines around the circumference of the stem;
- a plurality of nonconductive spine covers, each spine cover surrounding a respective spine;
- and
- a plurality of microelectrodes having a staggered configuration between the first spines and the second spines, wherein a most proximal microelectrode on each first spine is positioned at a greater distance from the proximal stem, and a most proximal electrode on each second spine is positioned at a lesser distance from the proximal stem.
An electrophysiology catheter comprising:
- an elongated body;
- a distal electrode assembly comprising a support body having:
- a proximal stem;
- a plurality of spines spanning outwardly from the stem, each spine carrying a plurality of microelectrodes, each electrode defining a concentricity, wherein the concentricities of microelectrodes on one spine are different from the concentricities of microelectrodes on adjacent spines.
Dependencies are inferred from the claim text.