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Publication Number
US-12605157-B2
Publication Date
2026-04-21
Expiration Date
Abstract
Method and device to prevent leakage of an intestine during surgery. The device is a tubular straw like device formed as one piece and having a first end opening, a second end opening and a lumen extending through an entire length of the device. The device can include an enlarged diameter rim to provide a radial force against the intestine. The device is placed at an anastomotic site of two intestine portions and attached by adhesive. The device can be used to close off perforations of body lumens.
Core Innovation
A biodegradable, one-piece tubular device is positioned in lumen ends to help prevent leakage of bodily fluids from anastomosis sites. The device is formed as one piece and includes a first end opening, a second end opening, and a tubular lumen extending through an entire length of the tubular device. In use, the device outer wall is sealed to inner walls of the lumens to form seals that secure the device at the anastomotic site.
The disclosed approach includes applying an adhesive to each of a first lumen and a second lumen, attaching the lumens to form an anastomotic site, and then positioning the one-piece tubular device in the first lumen and the second lumen. Positioning includes sealing a first portion of the outer wall to an inner wall of the first lumen to form a first seal and sealing a second portion of the outer wall to an inner wall of the second lumen to form a second seal. The device can be arranged in lumen placement configurations in which it is inserted within lumen ends, including described alternative placement configurations.
The tubular device can include an enlarged ribbed rim configured to generate radial force and block backflow proximal to the rim. The device can be non-expanding or expandable. The device can be made from biodegradable or tissue engineered materials, and it can include healing or treatment substances on or associated with the device, including growth factors, antimicrobial agents, antibodies, and chemotherapeutics such as paclitaxel. The device can also be used to seal perforations, with optional use of sutures in addition to the adhesive.
Claims Coverage
The document includes two independent claims that cover methods for preventing leakage of bodily fluids from anastomosis sites by resecting a lumen or colon portion, applying adhesive to lumen portions, attaching them to form an anastomotic site, and then positioning a one-piece tubular device in each lumen to form seals between an outer wall of the device and inner walls of the lumens.
Adhesive-applied colonic anastomosis with one-piece tubular device sealing both lumens
The method prevents leakage of bodily fluids from anastomosis sites by resecting a portion of a colon during a resection surgery, applying an adhesive to each of a first lumen of a first colon portion and a second lumen of a second colon portion, attaching the second colon portion to the first colon portion to form an anastomotic site, and subsequent to applying the adhesive positioning a one-piece tubular device in the first lumen and the second lumen, wherein positioning seals a first portion and a second portion of an outer wall of the tubular device to inner walls of the lumens to form first and second seals.
Adhesive-applied body-lumen anastomosis with one-piece tubular device sealing both lumens
The method prevents leakage of bodily fluids from anastomosis sites by resecting a portion of a body lumen during a resection surgery into a first body lumen and a second body lumen, applying an adhesive to each of the first body lumen and the second body lumen, attaching the second body lumen to the first body lumen to form an anastomotic site, and subsequent to applying the adhesive positioning a one-piece tubular device in the first body lumen and the second body lumen, wherein positioning seals a first portion and a second portion of an outer wall of the tubular body to inner walls of the first and second body lumens to form first and second seals.
Across the independent claims, the core inventive coverage is a leakage-prevention method that uses adhesive applied to each of two lumens followed by formation of an anastomotic site and insertion of a one-piece tubular device into both lumens, where seals are formed by sealing portions of the device outer wall to the lumens’ inner walls. Dependent claims further specify adhesive versus suture at end openings or seal-providing regions and optionally add healing/treatment substances, tissue engineered materials including colon cells, and/or biodegradable materials.
Stated Advantages
Prevents leakage of bodily fluids from anastomosis sites.
Documented Applications
Use in preventing leakage of bodily fluids from anastomosis sites during resection surgery of a colon portion or a body lumen portion.
Use of the tubular device to seal perforations.
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