Repositional over the scope clip with frangible link

Patent metadata

Field	Value
Publication number	US-12533141-B2
Application number	US-202318150521-A
Country	US
Kind code	B2
Filing date	Jan 5, 2023
Priority date	Mar 7, 2022
Publication date	Jan 27, 2026
Grant date	Jan 27, 2026

Abstract

A clipping system includes an adapter, a clip and a first extending member. The clip includes first and second jaws which are movable between an insertion configuration and an initial deployed configuration. The jaws are biased toward the initial configuration. The first member is releasably coupled to the clip and movably connected to the adapter. The first member includes a distal end releasably coupled to the first jaw such that longitudinal movement of the first member relative to the adapter moves the clip between the insertion configuration, the initial configuration and a review configuration. The first member is operable to retract the clip proximally over the adapter so that the clip is forced open as the clip is retracted over the adapter. A first releasable link connects the first member to the clip and releases when the first member is subject to a force exceeding a predetermined threshold value.

First claim

What is claimed is:

1 . A clipping system for treating tissue, comprising:
an adapter including a proximal portion configured to be mounted over a distal end of an insertion device and a distal portion extending distally from the proximal portion; a clip configured to be mounted over the distal portion of the adapter, the clip including first and second jaws connected to one another such that the first and second jaws are movable between an insertion configuration, in which the first and second jaws extend about opposing portions of the distal portion of the adapter and are separated from one another to receive tissue therebetween, and an initial deployed configuration, in which the clip is moved distally off of the adapter so that the first and second jaws are drawn toward one another to grip tissue therebetween, the first and second jaws being biased toward the initial deployed configuration; and a first extending member releasably coupled to the clip and movably connected to the adapter, the first extending member including a distal end releasably coupled to the first jaw such that longitudinal movement of the first extending member relative to the adapter moves the clip between the insertion configuration, the initial deployed configuration and to a review configuration in which the adapter is withdrawn proximally away from the clip while the first extending member remains coupled to the clip to enhance visual observation of the clip, the first extending member being operable to retract the clip proximally over the adapter so that the clip is forced open as the clip is retracted over the adapter, a first releasable link connecting the first extending member to the clip, the first releasable link configured to release when the first extending member is subject to a force exceeding a predetermined threshold value.

2 . The system of claim 1 , wherein the first jaw includes an opening extending therethrough from a first surface of the clip which, in an operative configuration, faces toward the adapter, to a second surface which, in the operative configuration, faces away from the adapter, the opening configured to receive a portion of the first extending member therein.

3 . The system of claim 2 , further comprising a capsule received within the opening of the first jaw, the capsule including a socket sized, shaped and configured to pivotally receive an enlarged distal end of the first extending member therein, the first extending member being configured to break when the force exerted on the first extending member exceeds a predetermined threshold level, wherein the capsule is configured so that, when the first extending member breaks, the enlarged distal end remains within the capsule.

4 . The system of claim 3 , wherein the capsule includes a channel extending therethrough along a central axis, in communication with the socket, a distal opening of the capsule being sized and shaped to permit passage of the enlarged distal end of the first extending member therethrough and a proximal opening of the capsule being sized and shaped to prevent a passage of the enlarged distal end of the first extending member therethrough.

5 . The system of claim 4 , wherein the capsule includes a slot extending from the socket to an exterior thereof, the slot configured to permit a portion of a remaining length of the first extending member to be moved therealong as the first extending member is pivoted from a first position, in which the remaining length extends along the first surface of the clip, toward a second position in which the remaining length extends transverse to the first jaw.

6 . The system of claim 5 , further comprising a cap configured to cover the distal opening of the capsule so that, upon separation of the enlarged distal end of the first extending member from the remaining length thereof during a final deployment, the enlarged distal end of the first extending member remains trapped within the capsule.

7 . The system of claim 5 , wherein the opening includes a countersink therearound along the second surface of the clip, the countersink sized, shaped and configured to pivotally receive the enlarged distal end of the first extending member.

8 . The system of claim 7 , further comprising a cap sized and shaped to cover the countersink along the second surface so that, upon separation of the enlarged distal end of the first extending member from the remaining length of the first extending member during final deployment of the clip, the enlarged distal end remains trapped within the opening of the clip.

9 . The system of claim 4 , wherein the distal opening of the capsule is keyed to a size and shape of the enlarged distal end of the first extending member.

10 . The system of claim 4 , further comprising a second extending member releasably coupled to the clip and movably connected to the adapter, the second extending member including an enlarged distal end pivotally coupled to the second jaw such that longitudinal movement of the second extending member relative to the adapter moves the clip between the insertion configuration, the initial deployed configuration and the review configuration, a second releasable link connecting the enlarged distal end of the second extending member to a remaining length of the second extending member, the second releasable link configured to release when the second extending member is subject to a force exceeding a predetermined threshold value.

11 . The system of claim 1 , further comprising a first sheath extending slidably over the first extending member so that a distal end thereof is configured to be positioned proximally of a first surface of the clip, the clip configured to be drawn proximally against the distal end of the first sheath during a final deployment of the clip.

12 . A clipping system for treating tissue, comprising:
an endoscope extending longitudinally from a proximal end to a distal end; an adapter including a proximal portion configured to be mounted over the distal end of the endoscope and a distal portion extending distally from the proximal portion; a clip configured to be mounted over the distal portion of the adapter, the clip including first and second jaws connected to one another such that the first and second jaws are movable between an insertion configuration, in which the first and second jaws extend about opposing portions of the distal portion of the adapter and are separated from one another to receive tissue therebetween, and an initial deployed configuration, in which the clip is moved distally off of the adapter so that the first and second jaws are drawn toward one another to grip tissue therebetween, the first and second jaws being biased toward the initial deployed configuration; and first and second extending members releasably coupled to first and second jaws of the clip, respectively, each of the first and second extending members including a distal end releasably coupled to a corresponding one of the first and second jaws such that longitudinal movement of the first and second extending members relative to the adapter moves the clip between the insertion configuration, the initial deployed configuration and a review configuration, in which the adapter is permitted to be withdrawn proximally away from the clip while the first and second extending members remain coupled to the clip to enhance visual observation of the clip, the first and second extending members being operable to retract the clip proximally over the adapter so that the clip is forced open as the clip is retracted over the adapter, a releasable link connecting the first and second extending members to the clip, the releasable lin

Assignees

• Boston Scientific Medical Device Limited
• Boston Scient Scimed Inc

Inventors

• Saenz Villalobos Gonzalo Jose
• Smith Paul
• Sharma Deepak Kumar
• G Sharath Kumar

Classifications

• A61B2017/00486

  Adaptors for coupling parts with incompatible geometries · CPC title

• A61B2017/00296

  mounted on an endoscope · CPC title

• A61B17/122

  Clamps or clips, e.g. for the umbilical cord {(for the vas deferens A61F6/206)} · CPC title

• A61B17/1285 Primary

  for minimally invasive surgery · CPC title

• A61B2090/037

  with a frangible part, e.g. by reduced diameter · CPC title