Magnetic catheter
Assignee460Medical, Inc.
InventorsTerrance J. Ransbury, Omar Amirana
Life of this patent
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Abstract
Systems and methods for imaging tissue using a magnetic catheter are provided. In some embodiments, a catheter is provided that includes a catheter body having a proximal end, a distal end, and one or more lumens therebetween. One or more magnetic bodies are positioned along a length of the catheter body and are responsive to an applied magnetic field. At least one of the one or more magnetic bodies can be located at or near the distal end of the catheter body so that the distal end of the catheter can be manipulated with a magnetic field.
Claims20
A catheter, comprising:
- a catheter body having a proximal end, a distal end, and one or more lumens therebetween;
- and
- one or more magnetic bodies positioned along a length of the catheter body and being responsive to an applied magnetic field, at least one of the one or more magnetic bodies located at or near the distal end of the catheter body so that the distal end of the catheter can be manipulated with a magnetic field.
A catheter, comprising:
- an optically-enabled, steerable magnetic catheter body having a proximal end, a distal end, and one or more lumens therebetween, the catheter body having regions of differing flexibility along a length thereof;
- and
- one or more magnetic bodies positioned along a length of the catheter body and being responsive to an applied magnetic field, at least one of the one or more magnetic bodies located at or near the distal end of the catheter body so that the distal end of the catheter can be manipulated with a magnetic field having practical strength.
A method for visualizing ablated tissue, comprising:
- advancing a catheter to a tissue in need of ablation, the catheter comprising a catheter body having a proximal end, a distal end, and one or more lumens therebetween;
- and one or more magnetic bodies positioned along a length of the catheter body and being responsive to an applied magnetic field, at least one of the one or more magnetic bodies located at or near the distal end of the catheter body so that the distal end of the catheter can be manipulated with a magnetic field;
- directing the light from the distal end of the catheter body to excite nicotinamide adenine dinucleotide hydrogen (NADH) in an area of the tissue including ablated tissue and non-ablated tissue;
- imaging the area of the tissue to detect NADH fluorescence of the area of the tissue;
- and
- producing a display of the imaged, illuminated tissue, the display illustrating the ablated tissue as having less fluorescence than non-ablated tissue.
A method for visualizing ablated tissue, comprising:
- advancing a catheter to a tissue in need of ablation, the catheter comprising an optically-enabled, steerable magnetic catheter body having a proximal end, a distal end, and one or more lumens therebetween, the catheter body having regions of differing flexibility along a length thereof;
- and one or more magnetic bodies positioned along a length of the catheter body and being responsive to an applied magnetic field, at least one of the one or more magnetic bodies located at or near the distal end of the catheter body so that the distal end of the catheter can be manipulated with a magnetic field;
- directing the light from the distal end of the catheter body to excite nicotinamide adenine dinucleotide hydrogen (NADH) in an area of the tissue including ablated tissue and non-ablated tissue;
- imaging the area of the tissue to detect NADH fluorescence of the area of the tissue;
- and
- producing a display of the imaged, illuminated tissue, the display illustrating the ablated tissue as having less fluorescence than non-ablated tissue.
Dependencies are inferred from the claim text.