Hemostasis reloadable clipping device with sleeve engagement

Patent metadata

Field	Value
Publication number	US-12433602-B2
Application number	US-202418620677-A
Country	US
Kind code	B2
Filing date	Mar 28, 2024
Priority date	Aug 22, 2016
Publication date	Oct 7, 2025
Grant date	Oct 7, 2025

Abstract

A system for treating tissue including a clip assembly including a pair of clip arms, a proximal end of each of the clip arms slidably received within a channel of a capsule and moveable between a tissue receiving configuration and a tissue clipping configuration. The system also including an applicator releasably coupleable to the clip assembly, the applicator including a control member connectable to the proximal end of each of the clip arms and a locking sleeve coupleable to a proximal end of the capsule via a deflectable tab including an engaging structure configured to engage a corresponding engaging structure at the proximal end of the capsule and a releasing structure proximal of the engaging structure, the releasing structure engagable with a portion of the control member to deflect the deflectable member and disengage the engaging structure of the locking sleeve from the corresponding engaging structure of the capsule.

First claim

What is claimed is:

1. A reloadable clipping device, comprising:
a first clip assembly including a pair of first clip arms, each of the first clip arms extending from a proximal end to a distal end, the proximal end of each of the first clip arms connected to one another via a first yoke slidably received within a channel of a first capsule to move the first clip arms between a tissue receiving configuration, in which distal ends of the first clip arms are separated from one another, and a tissue clipping configuration, in which the distal ends of the first clip arms are moved toward one another;
a first cartridge including a first groove therein, the first groove sized and shaped for housing the first clip assembly, the first cartridge including a proximal opening open to an exterior of the first cartridge in communication with the first groove;
a second clip assembly including a pair of second clip arms, each of the second clip arms extending from a proximal end to a distal end, the proximal end of each of the second clip arms connected to one another via a second yoke slidably received within a channel of a second capsule to move the second clip arms between a tissue receiving configuration, in which distal ends of the second clip arms are separated from one another, and a tissue clipping configuration, in which distal ends of the second clip arms are moved toward one another;
a second cartridge including a second groove therein, the second groove sized and shaped for housing the second clip assembly, the second cartridge including a proximal opening open to an exterior of the second cartridge in communication with the second groove; and
an applicator having a distal portion insertable through the opening of the first cartridge to be releasably coupled to the first clip assembly, the applicator including a control member having an enlarged distal end sized and shaped to be releasably received within a first socket of the first yoke and a locking sleeve coupleable to a proximal end of the first capsule via a deflectable tab extending from a free distal end to a proximal end connected to the locking sleeve so that the deflectable tab is deflectable away from a longitudinal axis of the locking sleeve, the deflectable tab including a distal bend extending into a channel of the locking sleeve to engage a first window extending laterally through the first capsule and a proximal bend proximal of the distal bend, the proximal bend extending into the channel of the locking sleeve so that when the proximal bend engages a portion of the control member, the deflectable tab is deflected away from the longitudinal axis of the locking sleeve to disengage the applicator from the first clip assembly, the applicator being configured so that, after the applicator has been disengaged from the first clip assembly, the distal portion of the applicator is insertable through the opening of the second cartridge to be releasably coupled to the second clip assembly so that the enlarged distal end is releasably received within a second socket of the second yoke with the locking sleeve coupled to a proximal end of the second capsule with the deflectable tab extending laterally through the first window.

2. A system for treating tissue, comprising:
a first clip assembly including a pair of first clip arms, each of the first clip arms extending from a proximal end to a distal end, the proximal end of each of the first clip arms slidably received within a first channel of a first capsule to be moved between a tissue receiving configuration, in which distal ends of the first clip arms are separated from one another, and a tissue clipping configuration, in which the distal ends of the first clip arms are moved toward one another; and
an applicator releasably coupleable to the first clip assembly to move the first clip assembly between the tissue receiving configuration and the tissue clipping configuration, the applicator including a control member connectable to proximal ends of the first clip arms and a locking sleeve coupleable to a proximal end of the first capsule via a deflectable tab defined along a length of the locking sleeve from a free distal end to a proximal end connected to the remaining portion of the locking sleeve so that the deflectable tab is deflectable relative to the remaining portion, the deflectable tab including a locking sleeve engaging structure configured to engage a corresponding first engaging structure at the proximal end of the first capsule and a releasing structure proximal of the locking sleeve engaging structure, the releasing structure engagable with a portion of the control member to deflect the deflectable tab and disengage the locking sleeve engaging structure from the first engaging structure.

3. The system of claim 2 , wherein the locking sleeve engaging structure includes a first bend along a distal end of the deflectable tab and the first engaging structure includes a first window extending laterally through the first capsule.

4. The system of claim 3 , wherein the first bend extends inward into a longitudinal channel of the locking sleeve so that the locking sleeve is mountable over the proximal end of the first capsule and the deflectable tab is deflectable away from a longitudinal axis of the channel of the locking sleeve.

5. The system of claim 4 , wherein the releasing structure includes a second bend extending into the channel of the locking sleeve.

6. The system of claim 2 , wherein the control member includes a body extending longitudinally from an enlarged distal end to a proximal end.

7. The system of claim 6 , wherein the proximal ends of the first clip arms are to one another connected via a first yoke including a socket sized and shaped for releasably receiving the enlarged distal end of the body of the control member.

8. The system of claim 7 , wherein the first yoke is configured to be deformed when a force exerted thereon by the enlarged distal end exceeds a predetermined threshold value.

9. The system of claim 2 , wherein the control member further includes a stop washer slidably mounted over a portion of a body, the stop washer including a surface for interfacing with the releasing structure to deflect the deflectable tab.

10. The system of claim 2 , wherein the locking sleeve engaging structure includes a window extending laterally though the deflectable tab and the first engaging structure includes a bend extending outward, away from a longitudinal axis of the first capsule so that the locking sleeve is receivable within the first channel of the first capsule and the deflectable tab is deflectable toward a longitudinal axis of the locking sleeve.

11. The system of claim 10 , wherein the releasing structure includes a protrusion extending inward into a longitudinal channel of the locking sleeve and the control member includes an enlarged portion configured to engage the protrusion so that, as the control member is drawn proximally relative to the deflectable tab, the deflectable tab deflects away from the longitudinal axis of the locking sleeve.

12. The system of claim 11 , wherein the applicator further comprises an outer sleeve extending about a portion of the deflectable tab proximal of the locking sleeve engaging structure, the outer sleeve being deformable over the deflectable tab to release the locking sleeve from the first capsule.

13. The system of claim 2 , wherein the first clip arms are biased toward the tissue receiving configuration.

14. The system of claim 2 , wherein the first capsule includes a first locking window extending through a wall thereof for engaging a first locking tab at the proximal end of at

Assignees

• Boston Scientific Medical Device Limited

Inventors

• Randhawa Nishant
• Singh Sukhvinder
• MOREY Subodh
• Rivera Federico

Classifications

• A61B2017/0053

  Loading magazines or sutures into applying tools · CPC title

• A61B17/1227

  Spring clips · CPC title

• A61B2090/034

  abutting on parts of the device itself · CPC title

• A61B2017/00477

  Coupling (A61B2017/0046 takes precedence) · CPC title

• A61B2017/00526

  Methods of manufacturing · CPC title