Mapping and ablation catheter system
OwnerBoaz Avitallinventor
Life of this patent
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Abstract
A recording and ablation catheter method and system for creating linear lesions in an atrial or other chamber of a heart is disclosed which includes an array of readily controlled electroded arcuate distal working catheter shapes that are easily deployed to contact the inner wall surface of the right atrial cardiac chamber in a manner that enables easy recording and mapping of impulses and thereafter facilitates sustained contact so that linear lesions can be produced from an array of mapping and ablation electrode devices serially spaced along the working catheter shape.
Claims16
A recording and ablation system for accessing a cardiac chamber of interest, mapping, creating linear ablation lesions in said cardiac chamber of interest comprising:
- (a) a guide member for navigating a catheter or sheath in the vascular system of a patient, said guide member comprising a distal stop means for containing the distal travel of a guide member eye, threaded thereover;
- (b) an hollow outer catheter or sheath;
- (c) an inner deployable system operable within said outer catheter or sheath and including a flexible distal electroded recording and ablation device extendable to protrude and be deployed from a distal opening in said outer catheter or sheath, said electroded device being axially adjustable relative to said guide member and having at least a distal guide member eye that slidably threads over said guide member to said distal stop means such that the electroded section proximal said distal guide member eye can be adjustably arcuately flexed according to the relative motion of said distal guide member eye and said electroded section protruding from said distal opening as contained by said distal stop means to produce a desired shape to address an inner surface of said chamber of interest;
- (d) locking mehanism to prevent relative rotation between said electroded device and said guide member;
- and
- (e) a plurality of spaced serial electrodes carried by said recording and ablation device.
A recording and ablation system for accessing a cardiac chamber of interest, mapping creating linear ablation lesions in said cardiac chamber of interest comprising:
- (a) an hollow outer catheter or sheath;
- (b) an inner catheter member operable within said outer catheter or sheath and including a flexible distal electoded recording and ablation device extendable to protrude from a distal opening in said outer catheter or sheath, said electroded device being axially adjustable relative to said sheath;
- (c) wherein said electroded recording and ablation device is in the form of a deployable ribbon loop carrying a plurality of serially spaced electrically isolated, separately connected electrodes forming an array thereof.
A recording and ablation system for accessing a cardiac chamber of interest comprising
- (a) a maneuverable outer catheter or sheath having a distal opening for the deployment of a recording and ablation device therefrom;
- (b) a plurality of vent openings proximal the distal opening for releasing entrapped air a distance proximal said distal opening.
Dependencies are inferred from the claim text.