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US 5,500,012 AGranted
Ablation catheter system
AssigneeAngeion Corporation
InventorsGregory G. Brucker, Steven D. Savage
Life of this patent
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Abstract
An ablation catheter system, including a guiding/mapping catheter assembly and a laser catheter. The guiding/mapping catheter includes ring electrodes, tip electrodes, a moveable fixation wire, and a central catheter lumen for an ablation catheter. A laser catheter includes an optical fiber for passing laser energy, tip electrodes, an optical fiber port, and thermocouples on the end of hypodermic tubing.
Claims24
A guiding/mapping catheter for use with heart tissue, comprising:
- (a) a catheter body comprising a central lumen and a non-collapsible tip structure comprising a distal end;
- (b) a plurality of electrodes positioned within the catheter body to communicate with tissue at the distal end of the tip structure, for finding arrythmogenic tissue in planar and non-planar tissue surfaces at an identified location via local activation mapping;
- (c) monitor means, operatively coupled to the plurality of electrodes, for identifying the arrythmogenic tissue;
- and
- (d) maneuvering means, within the tip structure, for movement of the catheter along the tissue surface.
2 more elements
A catheter system for use with heart tissue, comprising:
- (a) a guiding/mapping catheter, comprising:
- (i) a catheter body comprising a central lumen and a non-collapsible tip structure comprising a distal end;
- (ii) a plurality of electrodes positioned within the catheter body to communicate with tissue at the distal end of the tip structure for finding arrythmogenic tissue in planar and non-planar heart tissue surfaces at an identified location via local activation mapping;
- (iii) monitor means, operatively coupled to the plurality of electrodes, for identifying the arrythmogenic tissue;
- and
- (iv) maneuvering means, within the tip structure, for movement of the catheter along the tissue surface;
- and
- (b) an ablation catheter operatively configured for positioning within the central lumen of the guiding/mapping catheter, the ablation catheter comprising:
- (i) a catheter body having a proximal end and a distal end;
- (ii) a tip structure attached at the distal end of the catheter body;
- (iii) ablative means in said catheter body for providing ablative energy to the arrythmogenic tissue;
- and
- (iv) tissue sensing means for measuring directly the effect of the ablative energy on the arrythmogenic tissue.
10 more elements
A catheter system comprising:
- (a) a guiding/mapping catheter comprising:
- (i) a central lumen extending through the guiding/mapping catheter;
- (ii) a tip at an end of the guiding/mapping catheter;
- and
- (iii) at least one electrode positioned to communicate with tissue at the tip to find arrythmogenic tissue in tissue surfaces at an identified location via local activation mapping;
- and
- (b) an ablation catheter removably inserted within the central lumen of the guiding/mapping catheter, the ablation catheter comprising:
- (i) a catheter body having a distal end;
- (ii) a tip at the distal end to provide ablative energy to the arrythmogenic tissue;
- and
- (iii) a tissue sensing device to measure the effect of the ablative energy on the arrythmogenic tissue.
8 more elements
Dependencies are inferred from the claim text.