Esophageal delivery system and method with position indexing
First Claim
1. An esophageal delivery system comprising:
- an elongated delivery device sized for introduction into an esophagus of a patient;
a fixation element, disposed adjacent a distal end of the elongated delivery device, to engage a first selected portion of the esophagus and thereby fix the elongated delivery device against substantial upward movement within the esophagus; and
a medical device for placement within the esophagus of the patient, wherein the medical device is carried by the elongated delivery device at a fixed position relative to the fixation element such that the medical device is positioned adjacent a second selected portion of the esophagus.
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Accused Products
Abstract
An esophageal delivery system includes features that facilitate the precise positioning of a medical device within the gastrointestinal tract. The system supports indexed positioning without relying solely on endoscopic viewing or external imaging equipment to identify the location of the medical device. A fixation element holds an elongated delivery device at a selected position within the gastrointestinal tract. The medical device is carried at a position that is a fixed and known distance away from the fixation element. Once the fixation element is positioned at a known location, precise positioning of the medical device within the esophagus can be achieved with greater certainty. As an illustration, the fixation element may take the form of a balloon an expandable frame or other device capable of engaging the lower esophageal sphincter (LES) to provide a reference position for a medical device to be placed at a precise distance above the LES.
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Citations
61 Claims
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1. An esophageal delivery system comprising:
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an elongated delivery device sized for introduction into an esophagus of a patient;
a fixation element, disposed adjacent a distal end of the elongated delivery device, to engage a first selected portion of the esophagus and thereby fix the elongated delivery device against substantial upward movement within the esophagus; and
a medical device for placement within the esophagus of the patient, wherein the medical device is carried by the elongated delivery device at a fixed position relative to the fixation element such that the medical device is positioned adjacent a second selected portion of the esophagus. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A gastrointestinal delivery system comprising:
- an elongated delivery device sized for introduction into a small intestine of a patient via an esophagus of the patient;
a fixation element, disposed adjacent a distal end of the elongated delivery device, to engage tissue adjacent a pyloric sphincter of the patient, and thereby fix the elongated delivery device against substantial downward movement within the small intestine; and
a medical device for placement within the small intestine of the patient, wherein the medical device is carried by the elongated delivery device at a fixed position relative to the fixation element such that the medical device is positioned adjacent a selected portion of the small intestine below the pyloric sphincter. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21)
- an elongated delivery device sized for introduction into a small intestine of a patient via an esophagus of the patient;
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22. An esophageal delivery system comprising:
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a medical device;
means for introducing the medical device into an esophagus of a patient; and
means for engaging a first selected portion of the esophagus to fix the introducing means against substantial upward movement within the esophagus, wherein the medical device is carried by the introducing means at a fixed position relative to the engaging means such that the medical device is positioned adjacent a second selected portion of the esophagus. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29)
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30. A gastro-intestinal delivery system comprising:
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a medical device;
means for introducing the medical device into a small intestine of a patient via an esophagus of the patient; and
means for engaging tissue adjacent a pyloric sphincter of the patient to fix the introducing means against substantial downward movement within the small intestine, wherein the medical device is carried by the introducing means at a fixed position relative to the engaging means such that the medical device is positioned adjacent a selected portion of the small intestine below the pyloric sphincter. - View Dependent Claims (31, 32, 33, 34, 35, 36)
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37. A method for esophageal delivery of a medical device, the method comprising:
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introducing an elongated delivery device into an esophagus of a patient;
engaging a first selected portion of the esophagus with a fixation element carried by the elongated delivery device to thereby fix the elongated delivery device against substantial upward movement within the esophagus; and
placing a medical device within the esophagus of the patient, wherein the medical device is carried by the elongated delivery device at a fixed position relative to the fixation element such that the medical device is positioned adjacent a second selected portion of the esophagus. - View Dependent Claims (38, 39, 40, 41, 42, 43, 44, 45, 46, 47)
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48. A method for gastro-intestinal delivery of a medical device, the method comprising:
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introducing an elongated delivery device sized into a small intestine of a patient via an esophagus and a stomach of the patient;
engaging tissue adjacent a pyloric sphincter of the patient with a fixation element to fix the elongated delivery device against substantial downward movement within the small intestine; and
placing a medical device within the small intestine of the patient, wherein the medical device is carried by the elongated delivery device at a fixed position relative to the fixation element such that the medical device is positioned adjacent a selected portion of the small intestine below the pyloric sphincter. - View Dependent Claims (49, 50, 51, 52, 53, 54, 55, 56, 57)
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58. An esophageal delivery system comprising:
- an elongated delivery device sized for introduction into an esophagus of a patient;
a fixation element, disposed adjacent a distal end of the elongated delivery device, to engage a first selected portion of the esophagus and thereby fix the elongated delivery device against substantial upward movement within the esophagus; and
a deployment point formed in the elongated delivery device to deploy a medical device within the esophagus of the patient, wherein the deployment point is formed in the elongated delivery device at a fixed position relative to the fixation element such that the medical device is deployable to a second selected portion of the esophagus.
- an elongated delivery device sized for introduction into an esophagus of a patient;
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59. The system of claim 59, wherein the fixation element comprises an expandable balloon, an expandable frame, or one or more expandable tines that, upon expansion, is oriented to engage tissue in the vicinity of the lower esophageal sphincter.
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60. A gastrointestinal delivery system comprising:
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an elongated delivery device sized for introduction into a small intestine of a patient via an esophagus of the patient;
a fixation element, disposed adjacent a distal end of the elongated delivery device, to engage tissue adjacent a pyloric sphincter of the patient, and thereby fix the elongated delivery device against substantial downward movement within the small intestine; and
a deployment point formed within the elongated delivery device to deploy a medical device within the small intestine of the patient, wherein the deployment point is formed in the elongated delivery device at a fixed position relative to the fixation element such that the medical device is deployable to a selected portion of the small intestine below the pyloric sphincter. - View Dependent Claims (61)
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Specification