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Publication Number
US-11534158-B2
Publication Date
2022-12-27
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 provides endoscopic suture cinching in which a cinch includes a suture capturing portion, 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, and then is retracted into the lumen, with cinching performed between the cinch lock and the cinch anchor.
A cinching system is described for an endoscope having an insertion tube with at least one working channel. The system includes a handle movably coupled with a flexible drive wire, where movement of the drive wire within a working channel moves the suture capturing portion and correspondingly moves the cinch lock in distal and proximal directions.
The cinch anchor lumen has an inner diameter configured to provide an interference fit with the cinch lock when the cinch lock enters the lumen, thereby creating cinching using an interference fit mechanism. A delivery housing is also configured to fit within an endoscope working channel and carries the cinch anchor, with the suture capturing portion movably positioned in the lumen to support cinching.
Claims Coverage
The document includes three independent claims: a method claim and two device/system claims. The inventive features center on endoscope-based suture cinching using a suture capturing portion, a cinch lock, a cinch anchor having a lumen, and an interference fit between the cinch lock and the lumen inner diameter.
Method of cinching a suture
Providing a cinch comprising 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; extending the suture capturing portion out of the lumen 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-based cinching system with drive-wire controlled cinch lock movement
An endoscope having an insertion tube with at least one working channel; a cinching device comprising a handle movably coupled with a flexible drive wire; a suture capturing portion coupled with a distal end of the drive wire; a cinch anchor having a lumen through which the suture capturing portion travels; and a cinch lock coupled with the suture capturing portion, wherein movement of the suture capturing portion in distal and proximal directions correspondingly moves the cinch lock, and an inner diameter of the lumen is configured to provide an interference fit with the cinch lock when the cinch lock enters the lumen.
Delivery housing-based cinching device with interference-fit cinch lock
A delivery housing configured to fit within a working channel of an endoscope; a cinch anchor coupled with the delivery housing, the cinch anchor having a lumen extending from a proximal end to a distal end; a suture capturing portion movably positioned in the lumen and configured to capture a suture; and a cinch lock coupled with the suture capturing portion, wherein the cinch lock is configured to provide an interference fit with an inner diameter formed by the lumen when the cinch lock enters the lumen.
The claims collectively define capturing and cinching a suture with a suture capturing portion and a cinch lock, coordinated through an endoscope working channel and supported by an interference-fit mechanism between the cinch lock and the cinch anchor lumen.
Stated Advantages
Avoiding pre-loading/threading sutures outside the body and enabling cinching at locations along the suture inside the patient.
Documented Applications
Endoscopic suture cinching in a patient using an endoscope working channel, including cinching along a suture inside the patient after stitching.
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