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US 2015/0173828 A1Published application
Small loop ablation catheter
OwnerBoaz Avitallinventor
Life of this patent
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Abstract
A catheter system for creating lesions for the treatment of cardiac arrhythmias is disclosed that includes a catheter having a distal ablation segment that has an electrode array comprising a plurality of spaced ablation and recording electrode devices arranged in a tight loop configuration that is used to create a series of overlapping loop-shaped ablation footprints to produce a continuous lesion resembling a chain-link configuration.
Claims44
A medical device comprising:
- an elongate catheter shaft member having a proximal end and distal end;
- an ablation segment attached at or near the distal end of the catheter shaft member, said ablation segment comprising an electrode array of spaced ablation and recording electrodes in an arrangement shape selected from a generally linear extension of the catheter shaft and a fixed tight loop, wherein the generally linear shaped arrangement includes a distally attached pull wire device for causing said array to form a tight loop when it is retracted.
A medical device comprising:
- an elongate, flexible steerable outer sheath member having a proximal and a distal end and a lumen extending therebetween;
- a catheter having an elongate outer shaft member and an inner torqueable control shaft disposed in said outer sheath in slideable relation thereto, wherein the distal portion of said catheter shaft includes an ablation segment having an electrode array comprising a plurality of sequentially arranged, spaced ablation and recording electrode devices arranged to assume a tight loop configuration.
A method of creating continuous lesions for the treatment of cardiac arrhythmias comprising:
- providing a catheter having a distal ablation segment having an electrode array comprising a plurality of spaced ablation and recording electrode devices arranged in a tight loop configuration;
- using said ablation segment in a procedure to create a series of overlapping loop-shaped ablation footprints to create a continuous lesion resembling a chain-link configuration.
Dependencies are inferred from the claim text.