Assembly for securing gastrointestinal tissue folds
Inventors
Hiernaux, Martin • Chau, Alexandre • Joie, Michel
Assignees
Interested in licensing this patent?
MTEC can help explore whether this patent might be available for licensing for your application.
Publication Number
US-10245169-B2
Publication Date
2019-04-02
Expiration Date
Abstract
Assembly for endoscopically securing gastrointestinal tissue folds, comprising a first tissue anchor and a second tissue anchor, a first suture thread part and a second suture thread part, each of the first and second thread parts having a connected end and a free end opposite the connected end. The first thread part and the second thread part are tied to each other through a sliding knot, such that the first thread part firms a post of the sliding knot along which the sliding knot is arranged to slide during tightening of the assembly and such that the second thread part wraps around the post to create the sliding knot. The first thread part extends from the first anchor to past the sliding knot where the first thread part's free end forms a post free end, and the second thread part extends from the second anchor to past the sliding knot where the second thread part's free end is free, such that the sliding knot is interposed between the first and second anchors. The first or the second anchor comprises a knot retaining through hole, wherein the post free end slidingly passes through the knot retaining through hole, the knot retaining through hole having a size preventing the sliding knot to pass through the knot retaining through hole, such that the anchor can be used as a knot retainer during tightening.
Core Innovation
The invention relates to an assembly for endoscopically securing gastrointestinal tissue folds. The assembly includes a first tissue anchor and a second tissue anchor, and a first suture thread part and a second suture thread part connected to each other via a sliding knot, with the sliding knot arranged to slide during tightening so the assembly can be tightened for securing tissue folds.
The first suture thread part forms a post of the sliding knot, and the second suture thread part wraps around the post to create the sliding knot. The sliding knot is interposed between the first tissue anchor and the second tissue anchor, and the first suture thread part extends past the sliding knot such that the free end of the first suture thread part forms a post free end while the second suture thread part extends past the sliding knot such that the free end of the second suture thread part is free.
A knot-tightening configuration is provided in which the sliding knot is prevented from passing while the post free end is allowed to move through a retaining feature. The second tissue anchor includes a first through hole having a size preventing the sliding knot from passing through the first through hole, and the post free end is configured to slide through the first through hole so the second tissue anchor acts as a knot retainer during tightening.
Claims Coverage
The independent claim coverage includes 2 independent inventive concepts, both involving an endoscopically tightened sliding-knot assembly for securing gastrointestinal tissue folds.
Sliding knot tightened by sliding along a post between anchors
A first suture thread part and a second suture thread part are connected via a sliding knot so the first suture thread part forms a post of the sliding knot along which the sliding knot is arranged to slide during tightening, and the second suture thread part wraps around the post to create the sliding knot; the assembly is tightened by sliding the sliding knot along the post, with the sliding knot interposed between the first tissue anchor and the second tissue anchor.
Through-hole knot retainer preventing sliding knot passage
The second tissue anchor comprises a first through hole, the post free end is configured to slide through the first through hole, and the first through hole has a size preventing the sliding knot from passing through the first through hole, such that the second tissue anchor acts as a knot retainer during tightening.
Through-hole passage size preventing sliding knot passage with post free end sliding
The first tissue anchor further comprises a first through hole; the post free end is configured to slide through the first through hole, and the first through hole has a size preventing the sliding knot from passing through the first through hole.
Overall, the independent claims define an endoscopic gastrointestinal tissue-fold securing assembly in which a sliding knot is tightened by sliding along a post formed by one suture thread part, and knot retention is provided by a through hole sized to prevent sliding-knot passage while permitting sliding of the post free end.
Stated Advantages
Improved tightening reliability and visibility during endoscopic tightening.
Documented Applications
Endoscopically securing gastrointestinal tissue folds, including stomach reduction/plication and endoscopic tightening.
Interested in licensing this patent?