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Publication Number
US-12514578-B2
Publication Date
2026-01-06
Expiration Date
Abstract
A method cinches a suture. The method provides a cinch having a suture capturing portion configured to capture a suture, a cinch lock coupled with the suture capturing portion, and a cinch anchor having a lumen. The suture capturing portion is extended out of the lumen to capture the suture. The suture is captured by the suture capturing portion. The suture capturing portion is retracted into the lumen of the cinch anchor. The suture is cinched between the cinch lock and the cinch anchor.
Core Innovation
The invention relates to cinching a suture using a cinch lock and a cinch anchor delivered through an endoscope. A suture capturing portion of the cinch lock is configured to capture a suture by extending out of a lumen of the cinch anchor to capture the suture, and is then retracted back into the lumen so that the suture is cinched between the cinch lock and the cinch anchor.
The invention includes an endoscope with an insertion tube and at least one working channel, and a cinching device with a handle and a flexible drive wire. Movement of the drive wire within the endoscope working channel causes distal movement of the cinch lock, so that the cinch lock is received by a cinch anchor having a lumen, and the inner diameter of the lumen is configured to provide an interference fit with the cinch lock and suture when the cinch lock and suture enter the lumen.
The invention further provides cinch configurations and cinch device structures in which the cinch lock includes a suture capturing portion such as a hook and/or a suture-receiving opening. In one device form, a housing is configured to fit within a working channel of an endoscope, and the cinch anchor coupled with the housing includes a lumen extending from a proximal end to a distal end.
Claims Coverage
The document includes three independent claims: one method claim and two system/device claims. The coverage focuses on extending a suture capturing portion out of a cinch anchor lumen to capture a suture, retracting or moving the cinch lock into the lumen, and cinching the suture using an interference fit between a cinch lock and a cinch anchor lumen.
Extending and retracting a suture capturing portion for capture and cinching
Providing a cinch lock comprising a suture capturing portion configured to capture a suture; extending the suture capturing portion out of a lumen of a cinch anchor to capture the suture; retracting the suture capturing portion into the lumen of the cinch anchor; and cinching the suture between the cinch lock and the cinch anchor.
Endoscope-driven cinch lock translation with interference-fit cinching
An endoscope having an insertion tube with at least one working channel; a handle movably coupled with a flexible drive wire configured to move the drive wire proximally or distally within the working channel; a cinch lock having a suture capturing portion coupled with a distal end of the drive wire such that distal movement causes distal movement of the cinch lock; a cinch anchor configured to receive the cinch lock and having a lumen through which the drive wire passes; wherein an inner diameter of the lumen is configured to provide an interference fit with the cinch lock and suture when the cinch lock and suture enter the lumen.
Cinching device with lumen-based interference fit
A housing configured to fit within a working channel of an endoscope; a cinch anchor coupled with the housing, the cinch anchor having a lumen extending from a proximal end to a distal end; a cinch lock having a suture capturing portion movably positioned in the lumen, the suture capturing portion configured to capture a suture; wherein the cinch lock is configured to provide an interference fit with an inner diameter formed by the lumen when the cinch lock and the suture enter the lumen.
Across the independent claims, the core claim coverage is the cooperative use of a cinch lock with a suture capturing portion and a cinch anchor lumen to capture a suture and cinch it through an interference fit. The system and device claims add endoscope working channel delivery and drive-wire structures that move the cinch lock into the lumen to achieve the interference fit.
Stated Advantages
Capturing and cinching inside the body without suture pre-loading outside the patient.
Enabling cinching at selectable locations along the suture.
Documented Applications
Endoscopic suture cinching in an endoscope working channel, including cinching at selectable locations along a suture.
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