Therapeutic method and therapeutic system that use overtube with balloons
First Claim
Patent Images
1. An overtube comprising:
- a flexible tubular portion in which an insertion channel is formed, an endoscope being inserted through the insertion channel; and
a plurality of balloons loaded at plural positions on an outer surface of the flexible tubular portion, the balloons being expanded and shrunk selectively every use pattern, the positions being different to from each other in an axial direction of the flexible tubular portion and being set to be fixed to an inner wall of either a body cavity or a tubular cavity of an object being examined at mutually different positions of the inner wall by expanding the balloons.
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Abstract
An overtube comprises a flexible tubular portion in which an insertion channel is formed. An endoscope is inserted through the insertion channel. A plurality of balloons are loaded at plural positions on an outer surface of the flexible tubular portion. Specially, the balloons are expanded and shrunk selectively every use pattern, and the positions are different from each other in an axial direction of the flexible tubular portion and set to be fixed to an inner wall of either a body cavity or a tubular cavity of an object being examined at mutually different positions of the inner wall by expanding the balloons.
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Citations
24 Claims
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1. An overtube comprising:
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a flexible tubular portion in which an insertion channel is formed, an endoscope being inserted through the insertion channel; and a plurality of balloons loaded at plural positions on an outer surface of the flexible tubular portion, the balloons being expanded and shrunk selectively every use pattern, the positions being different to from each other in an axial direction of the flexible tubular portion and being set to be fixed to an inner wall of either a body cavity or a tubular cavity of an object being examined at mutually different positions of the inner wall by expanding the balloons. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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2. An overtube comprising:
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a flexible tubular portion in which an insertion channel is formed, an endoscope being inserted through the insertion channel; and a plurality of balloons loaded at plural positions on an outer surface of the flexible tubular portion, the balloons being expanded and shrunk selectively every use pattern, being substantially equal in internal cubic volume to each other when being expanded, respectively, and including at least two balloons having mutually different lengths in the axial direction, the positions being different from each other in an axial direction of the flexible tubular portion and being set to be fixed to an inner wall of either a body cavity or a tubular cavity of an object being examined at mutually different positions of the inner wall by expanding the balloons.
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16. An overtube comprising:
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a flexible tubular portion in which an insertion channel is formed, an endoscope being inserted through the insertion channel; and a plurality of balloons loaded at plural positions on an outer surface of the flexible tubular portion, the balloons being expanded and shrunk, being substantially equal in internal cubic volume to each other when being expanded, respectively, and including at least two balloons having mutually different lengths in the axial direction, the positions being different from each other in an axial direction of the flexible tubular portion and being set to be fixed to an inner wall of either a body cavity or a tubular cavity of an object being examined at mutually different positions of the inner wall by expanding the balloons.
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17. A therapeutic system comprising:
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an endoscope; an overtube comprising an insertion channel through which the endoscope is inserted, a flexible tubular portion, and a plurality of balloons loaded at plural positions respectively on an outer surface of the flexible tubular portion, the balloons being selectively expanded and shrunk, the positions being different from each other in an axial direction of the flexible tubular portion and being set to be fixed to an inner wall of either a body cavity or a tubular cavity of an object being examined at mutually different positions of the inner wall by expanding the balloons; and a controller that selectively controls the expansion of the plurality of balloons. - View Dependent Claims (18, 20, 21, 22, 23, 24)
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19. A therapeutic method comprising steps of:
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inserting an insertion tube of an endoscope through an insertion channel of an overtube equipped with a plurality of balloons; inserting orally the insertion tube of the endoscope, together with the overtube, until a duodenum of an object being examined to locate adjacently to a Vater'"'"'s papilla of the duodenum; moving the overtube toward the Vater'"'"'s papilla along the insertion tube of the endoscope so as to locate a distal end of the overtube adjacently to the Vater'"'"'s papilla; expanding at least two balloons of the plurality of balloons so that the at least two balloons are fixed respectively to an inner wall of a first tubular cavity or body cavity and a second tubular cavity or body cavity both leading to the duodenum; and using the endoscope to diagnose and/or treat at least any one of a biliary duct, a pancreatic duct, and a neighboring part to the Vater'"'"'s papilla, after expanding the at least two balloons to be positionally fixed.
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Specification