Methods and systems for determining physiologic characteristics for treatment of the esophagus
First Claim
1. A method for treating the esophagus at a treatment location, the method comprising:
- introducing an expandable sizing member at the treatment location within the esophagus;
substantially unfolding surface contours of a wall of the esophagous at the treatment location by expanding the sizing member;
measuring a substantially unfolded esophageal luminal dimension at the treatment location;
selecting an electrode structure with a pre-selected deployed state which corresponds to the measured esophageal luminal dimension;
introducing and deploying the selected electrode structure to the pre-selected deployed state to engage the substantially unfolded esophageal wall at the treatment location; and
delivering energy to an electrode of the electrode structure for treatment of the esophageal tissue.
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Accused Products
Abstract
A system for measuring physiologic characteristics for treating abnormal mucosa in the esophagus comprises a sizing device having an inflatable balloon on a distal end of a catheter that is inflated with an expansion medium to expand the balloon to engage the wall of the esophagus so that the internal cross-section can be calculated or measured. The sizing device may also include an infusion source for delivering the expansion medium and means for measuring the amount and pressure of the expansion medium inside the catheter. The system also comprises one or more energy delivery devices for injuring or ablating the
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Citations
38 Claims
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1. A method for treating the esophagus at a treatment location, the method comprising:
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introducing an expandable sizing member at the treatment location within the esophagus;
substantially unfolding surface contours of a wall of the esophagous at the treatment location by expanding the sizing member;
measuring a substantially unfolded esophageal luminal dimension at the treatment location;
selecting an electrode structure with a pre-selected deployed state which corresponds to the measured esophageal luminal dimension;
introducing and deploying the selected electrode structure to the pre-selected deployed state to engage the substantially unfolded esophageal wall at the treatment location; and
delivering energy to an electrode of the electrode structure for treatment of the esophageal tissue. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A method for treating the tissue of an esophagus at a treatment location, the method comprising:
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introducing an expandable sizing member at the treatment location within the esophagus;
substantially unfolding surface contours of a wall of the esophagus at the treatment location by expanding the sizing member;
measuring a substantially unfolded esophageal luminal dimension at the treatment location;
positioning an electrode deployment device at the treatment location within the esophagus, wherein the electrode deployment device has an electrode structure coupled to an expansion member;
deploying the expansion member to engage the electrode structure against a wall of the esophagus; and
delivering sufficient energy to the electrode structure for treatment of the esophageal tissue based on the unfolded esophageal luminal dimension at the treatment location. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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Specification