Circumferential pulmonary vein ablation using a laser and fiberoptic balloon catheter
First Claim
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1. A balloon catheter device suitable for treating arrhythmias attributable to atrial fibrillation;
- said balloon catheter device comprising;
a shaft having a proximal end and a distal end;
a balloon at the distal end of the shaft;
wherein the balloon is configured and arranged so as to be in a deflated state when the balloon is being maneuvered and positioned proximal a pulmonary vein proximal the left atrium and is configured and arranged so when the balloon is in an inflated state the balloon is removably secured within the pulmonary vein proximal the left atrium;
at least one optical fiber that extends through the shaft and the balloon; and
a radial delivery mechanism positioned inside of the balloon, wherein the radial delivery mechanism and at least one optical fiber are arranged so that visible or near-infrared radiation is radially delivered from the optical fiber to a portion of the pulmonary vein proximal the optical fiber, and at a power level sufficient to cause at least one of transmural, continuous and circumferential lesions to be formed in the pulmonary vein and thereby electrically isolating the pulmonary vein from the left atrium.
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Abstract
A balloon catheter device that provides radial delivery of visible or near-infrared radiation. The radial delivery of visible or near-infrared radiation to the pulmonary vein is particularly effective in creating transmural, continuous, and circumferential lesions in the pulmonary vein. Creation of these lesions electrically isolates the pulmonary veins from the left atrium of the heart and, thus is a particularly suitable method for the treatment of atrial fibrillation.
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Citations
47 Claims
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1. A balloon catheter device suitable for treating arrhythmias attributable to atrial fibrillation;
- said balloon catheter device comprising;
a shaft having a proximal end and a distal end; a balloon at the distal end of the shaft; wherein the balloon is configured and arranged so as to be in a deflated state when the balloon is being maneuvered and positioned proximal a pulmonary vein proximal the left atrium and is configured and arranged so when the balloon is in an inflated state the balloon is removably secured within the pulmonary vein proximal the left atrium; at least one optical fiber that extends through the shaft and the balloon; and a radial delivery mechanism positioned inside of the balloon, wherein the radial delivery mechanism and at least one optical fiber are arranged so that visible or near-infrared radiation is radially delivered from the optical fiber to a portion of the pulmonary vein proximal the optical fiber, and at a power level sufficient to cause at least one of transmural, continuous and circumferential lesions to be formed in the pulmonary vein and thereby electrically isolating the pulmonary vein from the left atrium. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 47)
- said balloon catheter device comprising;
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38. A medical device kit, comprising one or more balloon catheter devices for treating arrhythmias attributable to atrial fibrillation, wherein each of the one or more balloon catheter devices includes:
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a shaft having a proximal end and a distal end; a balloon at the distal end of the shaft; wherein the balloon is configured and arranged so as to be in a deflated state when the balloon is being maneuvered and positioned proximal a pulmonary vein proximal the left atrium and is configured and arranged so the balloon is removably secured within the pulmonary vein proximal the left atrium when the balloon is in an inflated state; at least one optical fiber that extends through the shaft and balloon; and a radial delivery mechanism positioned inside of the balloon, wherein the radial delivery in mechanism and the at least one optical fiber area arranged so that visible or near-infrared radiation is radially delivered to a portion of the pulmonary vein, and at a power level sufficient to cause at least one of transmural, continuous and circumferential lesions to be formed in the pulmonary vein and thereby electrically isolating the pulmonary vein from the left atrium. - View Dependent Claims (39)
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40. A method for treating a patient suffering from arrhythmias attributable to atrial fibrillation, comprising the steps:
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providing a balloon catheter device that includes; a shaft having a proximal end and a distal end, a balloon at the distal end of the shaft, wherein the balloon is configured and arranged so as to be removably secured within the pulmonary vein proximal the left atrium when the balloon is inflated for treatment, at least one optical fiber, extending through the shaft and balloon, and a radial delivery mechanism positioned inside of the balloon; positioning the balloon catheter device within the pulmonary vein proximal the left atrium for treatment; inflating the balloon when the balloon catheter device so positioned so as to removably secure the balloon within the vein proximal the left atrium; and radially delivering visible or near-infrared radiation via the radial delivery mechanism to a portion of the pulmonary vein proximal the balloon at the treatment site so as to cause at least one of transmural, continuous and circumferential lesions to be formed in the portion of the pulmonary vein and so as to cause the pulmonary vein to be electrically isolated from the left atrium. - View Dependent Claims (42, 44, 45, 46)
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41. A method for treating a patient suffering from arrhythmias attributable to atrial fibrillation comprising the steps of:
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providing a balloon catheter device including a shaft having a proximal end and a distal end;
a balloon at the distal end of the shaft, wherein the balloon is configured and arranged so as to be removably secured within the pulmonary vein proximal the left atrium for treatment;
at least one optical fiber, extending through the shaft and balloon, where the balloon is configured and arranged so when the balloon is in an inflated state the balloon is removably secured within the pulmonary vein proximal the left atrium; and
a radial delivery mechanism positioned inside of the balloon;creating transmural, continuous, and circumferential lesions in the pulmonary vein using the provided balloon catheter device.
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43. A method for treating a patient suffering from arrhythmias attributable to atrial fibrillation, comprising the steps of:
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providing a balloon catheter device including a shaft having a proximal end and a distal end;
a balloon at the distal end of the shaft, wherein the balloon catheter device is configured and arranged so as to be removably secured within a pulmonary vein proximal the left atrium;
at least one optical fiber, extending through the shaft and balloon; and
a radial delivery mechanism positioned inside of the balloon;making an incision to provide access to the pulmonary vein; inserting the balloon catheter device into the incision and into a blood vessel; directing the balloon catheter device through the blood vessel to the pulmonary vein and so as to be proximal the left atrium; inflating the balloon; and delivering visible or near-infrared radiation radially from the optical fiber to a portion of the pulmonary vein via the radial delivery mechanism, so as to electrically isolate the pulmonary vein from the left atrium.
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Specification