Systems and method for bypassing an anastomosis site
First Claim
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1. A system for bypassing an anastomosis site in a colon, the system comprising:
- (a) a band, configured for positioning around an external surface region of the colon;
(b) a tubular sleeve having a portion configured for spanning the anastomosis site at an internal surface of the colon, said tubular sleeve including a first tubular region extending to a contiguous second tubular region, said first tubular region including an expandable structure having;
(i) a diameter, when expanded, greater than a diameter of said contiguous second tubular region;
(ii) at least three balloons, wherein a first, proximal-most balloon is configured to cooperate with the band in a manner limiting movement of the tubular sleeve in a downstream direction of the colon and enabling migration of the tubular sleeve in an upstream direction in the colon, and wherein a second intermediate balloon and a third distal-most balloon are configured to stabilize the tubular sleeve within the colon when the second and third balloon are inflated; and
(iii) a distance from a proximal edge of the first balloon to a distal edge of the third balloon is greater than the diameter of the first tubular region, when expanded.
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Abstract
A system for bypassing an anastomosis site in a hollow organ is provided. The system includes a sleeve configured for spanning the anastomosis site at an internal surface of the hollow organ and a band configured for attachment to an external surface of the hollow organ and limiting migration of the sleeve beyond the anastomosis site.
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Citations
19 Claims
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1. A system for bypassing an anastomosis site in a colon, the system comprising:
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(a) a band, configured for positioning around an external surface region of the colon; (b) a tubular sleeve having a portion configured for spanning the anastomosis site at an internal surface of the colon, said tubular sleeve including a first tubular region extending to a contiguous second tubular region, said first tubular region including an expandable structure having; (i) a diameter, when expanded, greater than a diameter of said contiguous second tubular region; (ii) at least three balloons, wherein a first, proximal-most balloon is configured to cooperate with the band in a manner limiting movement of the tubular sleeve in a downstream direction of the colon and enabling migration of the tubular sleeve in an upstream direction in the colon, and wherein a second intermediate balloon and a third distal-most balloon are configured to stabilize the tubular sleeve within the colon when the second and third balloon are inflated; and (iii) a distance from a proximal edge of the first balloon to a distal edge of the third balloon is greater than the diameter of the first tubular region, when expanded. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 17, 18)
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10. A method of internally shielding an anastomosis site in a colon of a subject, the method comprising:
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(a) positioning within the colon a tubular sleeve having a first tubular region extending to a contiguous second tubular region, said first tubular region including an expandable structure having a diameter, when expanded, greater than a diameter of the contiguous second tubular region, and at least three balloons, wherein a first, proximal-most balloon is configured to cooperate with a band in a manner limiting movement of the tubular sleeve in a downstream direction of the colon and enabling migration of the tubular sleeve in an upstream in the colon wherein, a second intermediate balloon and a third distal-most balloon are configured to stabilize the tubular sleeve within the colon when the second and third balloon are inflated, and wherein a distance from a proximal edge of the first balloon to a distal edge of the third balloon is greater than the diameter of the first tubular region, when expanded; (b) positioning the band around an external surface region of the colon upstream of the anastomosis site and downstream of said first tubular region of said tubular sleeve; and (c) expanding said expandable structure thereby restricting downstream migration of the tubular sleeve and internally shielding the anastomosis site in the colon. - View Dependent Claims (11, 12, 13, 14, 15, 16, 19)
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Specification