US-12616476-B2 - Mechanical fixation of an implantable adjunct to a staple cartridge

US12616476B2US 12616476 B2US12616476 B2US 12616476B2US-12616476-B2

Abstract

Systems and methods for mechanically fixing an implantable adjunct to a staple cartridge are disclosed. A suture secured at the proximal and distal ends of the staple cartridge applies is tensioned over an implantable adjunct to secure the adjunct to the deck of a staple cartridge.

Inventors

Mark Zeiner
Christopher Q. Seow
Sarah A. Scully
Richard L. Leimbach

Assignees

CILAG GMBH INTERNATIONAL

Dates

Publication Date: 20260505
Application Date: 20241021

Claims (20)

1 . A staple cartridge, comprising: an elongate body, the elongate body comprising longitudinal slot extending along a longitudinal axis from a proximal end toward a distal end of the elongate body, the elongate body further comprising a deck, and a plurality of staple pockets, each of the staple pockets accessible via an opening in the deck; and an implantable adjunct removably secured to the deck by at least one suture, the at least one suture extending parallel to and within a longitudinal groove of the implantable adjunct, the longitudinal groove aligned with the longitudinal slot of the elongate body, wherein the at least one suture is secured at each of the proximal end and distal end of the elongate body.
2 . The staple cartridge of claim 1 , further comprising a pan, the pan comprising hooks securing the at least one suture at the proximal end of the elongate body.
3 . The staple cartridge of claim 2 , wherein the proximal end of the elongate body further comprises a suture guide directing the at least one suture into the longitudinal groove of the implantable adjunct.
4 . The staple cartridge of claim 3 , wherein the suture guide comprises a bottom surface angled relative to the deck at an angle (θ).
5 . The staple cartridge of claim 1 , wherein the at least one suture comprises a sleeve attached onto at least one end of the at least one suture.
6 . The staple cartridge of claim 5 , wherein the proximal end of the elongate body further comprises a recess to secure the sleeve to the elongate body.
7 . The staple cartridge of claim 6 , wherein the recess is sized to form a press-fit or an interference fit with the sleeve.
8 . The staple cartridge of claim 1 , wherein the proximal end of the elongate body further comprises a cavity to receive a collet, the collet having a first opening to receive the at least one suture therethrough and restrict the at least one suture from sliding back through the first opening.
9 . The staple cartridge of claim 8 , wherein the cavity tapers inward toward the longitudinal slot such that the first opening of the collet clamps onto the at least one suture as the collet moves toward the longitudinal slot.
10 . The staple cartridge of claim 1 , wherein the distal end comprises a cutting slot on an underside of the elongate body, wherein the at least one suture extends across the cutting slot thereby forming a space between the underside of the elongate body and the at least one suture to accommodate a cutting instrument.
11 . The staple cartridge of claim 10 , wherein the distal end further comprises two through holes extending through the distal end of the elongate body, wherein the at least one suture passes through the through holes from a topside to the underside of the elongate body and across the cutting slot.
12 . The staple cartridge of claim 10 , wherein the distal end of the elongate body further comprises two side grooves, wherein the at least one suture is looped around the two side grooves securing the at least one suture to the distal end of the elongate body.
13 . The staple cartridge of claim 12 , further comprising a post provided distal to the two side grooves wherein the at least one suture wraps around the post to secure the at least one suture to the distal end of the elongate body.
14 . The staple cartridge of claim 13 , wherein the at least one suture extends from the post and into the longitudinal groove of the implantable adjunct.
15 . The staple cartridge of claim 10 , wherein the distal end of the elongate body further comprises a guide ledge directing the at least one suture into the longitudinal groove of the implantable adjunct.
16 . The staple cartridge of claim 1 , wherein the at least one suture is biased to one side of the longitudinal slot of the elongate body.
17 . The staple cartridge of claim 1 , wherein the implantable adjunct comprises a mesh layer, and wherein the at least one suture rests on top of the mesh layer when provided in the longitudinal groove to secure the implantable adjunct to the deck of the elongate body of the staple cartridge.
18 . A staple cartridge, comprising: an elongate body, the elongate body comprising longitudinal slot extending along a longitudinal axis from a proximal end toward a distal end of the elongate body, the elongate body further comprising a deck, and a plurality of staple pockets, each of the staple pockets accessible via an opening in the deck; and an implantable adjunct removably secured to the deck by at least one suture, the at least one suture provided within a longitudinal groove of the implantable adjunct, the longitudinal groove aligned with the longitudinal slot of the elongate body, wherein the at least one suture is secured at each of the proximal end and distal end of the elongate body, and wherein the implantable adjunct comprises a mesh layer, and wherein the at least one suture rests on top of the mesh layer when provided in the longitudinal groove to secure the implantable adjunct to the deck of the elongate body of the staple cartridge.
19 . A method for securing an implantable adjunct to a deck of an elongate body of a staple cartridge comprising: placing implantable adjunct onto the deck the elongate body; securing at least one suture to a distal end of the elongate body; advancing the at least one suture through a longitudinal groove and onto a mesh layer of the implantable adjunct; and securing the at least one suture to a proximal end of the elongate body such that the at least one suture provides a tension force onto the mesh layer of the implantable adjunct securing the implantable adjunct to the deck of the elongate body.
20 . The method of claim 19 , wherein securing the at least one suture to the distal end of the elongate body comprises: wrapping the at least one suture around an underside of the distal end of the elongate body, such that the at least one suture extends over a cutting slot provided on the underside of the distal end of the elongate body; advancing a first end of the at least one suture through a first side groove ( 126 a ) provided on the distal end of the elongate body; advancing a second end of the at least one suture through a second side groove ( 126 b ) provided on the distal end of the elongate body; wrapping the first end of the at least one suture around a post; positioning the first end of the at least one suture through the longitudinal groove and onto the mesh layer of the implantable adjunct; wrapping the second end of the at least one suture around the post; and positioning the second end of the at least one suture through the longitudinal groove and onto the mesh layer of the implantable adjunct.

Description

FIELD OF INVENTION The present disclosure generally relates to fixation of implantable adjuncts to staple cartridges. More specifically, the present disclosure relates to mechanical fixation systems and methods for securing implantable adjuncts to staple cartridges. BACKGROUND Stapling is a crucial aspect of many surgical procedures, such as gastrointestinal, thoracic, and gynecological surgeries. Staple cartridges used in said stapling procedures may include an implantable adjunct on the deck of the cartridge. Care must be taken to ensure the implantable adjunct is properly attached to the deck so that it is not dislodged from the deck during shipment or during surgery before the adjunct is positioned at the treatment site. SUMMARY It is an object of the present designs to provide devices and methods to meet the above-stated needs. The designs can be for systems and devices for securing an implantable adjunct on a staple cartridge, while also preventing accidental removal of the adjunct from the staple cartridge by a user. The instant disclosure describes a staple cartridge. The staple cartridge includes an elongate body. The elongate body includes a deck. The elongate body includes a longitudinal slot extending along a longitudinal axis from a proximal end toward a distal end of the elongate body. The elongate body defines a plurality of staple pockets, each of the staple pockets is accessible via an opening in the deck. The staple cartridge includes an implantable adjunct removably secured to the deck. The implantable adjunct includes a longitudinal groove which is aligned with the longitudinal slot of the elongate body. At least one suture is provided within a longitudinal groove of the implantable adjunct and secured at each of the proximal end and distal end of the elongate body. The staple cartridge may further include a pan to support the elongate body. The pan may include hooks which secure the suture at the proximal end of the elongate body. The proximal end of the elongate body may further include a suture guide directing the suture into the longitudinal groove of the implantable adjunct. The suture guide may include a bottom surface angled relative to the deck to retain the suture in a desired position. In some examples, the suture comprises a sleeve attached onto at least one end of the suture. A proximal end of the elongate body may include a recess to secure the sleeve to the elongate body. The recess is sized to form a press-fit or an interference fit with the sleeve. In some examples, the proximal end of the elongate body includes a cavity to receive a collet. The collet has a first opening to receive a suture therethrough and restrict the suture from sliding back through the first opening. The cavity tapers inward toward the longitudinal slot such that the first opening of the collet clamps onto the suture as the collet moves toward the longitudinal slot. In some examples, the distal end of the elongate body includes a cutting slot on an underside and the suture extends across the cutting slot. The cutting slot provides a space between the underside of the elongate body and the suture to accommodate a cutting instrument. In some examples, two through holes extend through the distal end of the elongate body, and the suture is passed through the holes to secure the suture to the distal end of the elongate body. In some examples, the distal end of the elongate body includes two side grooves. The suture is looped around the two side grooves to secure the suture to the distal end of the elongate body. The staple cartridge may also include a post provided distal to the two side grooves. The suture may wrap around the post for additional securement of the suture to the distal end of the elongate body. The post may also center the suture into the longitudinal groove of the implantable adjunct. In some examples, the distal end of the elongate body includes a guide ledge to direct the suture into the longitudinal groove of the implantable adjunct. In some examples, an implantable adjunct includes a mesh layer. The suture may rest on top of the mesh layer when provided in the longitudinal groove to secure the implantable adjunct to the deck of the elongate body of the staple cartridge. The suture is biased to one side of the longitudinal slot of the elongate body to prevent cutting of the suture by a knife passing through the longitudinal slot of the elongate body. The instant disclosure describes a method of securing an implantable adjunct to a deck of an elongate body of a staple cartridge. The method includes placing the implantable adjunct onto the deck of the elongate body, securing a suture to a distal end of the elongate body, advancing the least one suture through a longitudinal groove and onto a mesh layer of the implantable adjunct, and securing the suture to a proximal end. The suture provides a tension force onto the mesh layer of the implantable adjunct, thereby securing the implantable