Adhesive barbed filament

Patent metadata

Field	Value
Publication number	US-9775928-B2
Application number	US-201414269225-A
Country	US
Kind code	B2
Filing date	May 5, 2014
Priority date	Jun 18, 2013
Publication date	Oct 3, 2017
Grant date	Oct 3, 2017

Abstract

The present disclosure provides filaments and/or surgical sutures which include an inner core, an outer sheath and a plurality of barbs on a surface thereof. The filaments and/or surgical sutures further include at least one adhesive precursor material which transitions from a non-adherent material to an adhesive material to attach a portion of the filament and/or suture to the surrounding area, such as tissue and/or other portions of the filament.

First claim

What is claimed is:

1. A surgical suture comprising:
a filament having an elongated body including an inner core and outer sheath, the inner core including a first adhesive precursor and the outer sheath including at least one of a second adhesive precursor or a catalyst, and
a plurality of barbs formed along a surface of the elongated body and exposing a portion of the inner core and the first adhesive precursor and the outer sheath and at least one of the second adhesive precursor or the catalyst.

2. The surgical suture of claim 1 wherein the adhesive precursor comprises a cyanoacrylate.

3. The surgical suture of claim 1 wherein the inner core further comprises a bioabsorbable polymer.

4. The surgical suture of claim 1 wherein the outer sheath further comprises a bioabsorbable polymer.

5. The surgical suture of claim 1 wherein the plurality of barbs are arranged in a bidirectional manner.

6. The surgical suture of claim 1 wherein at least one end of the filament is attached to a needle.

7. The surgical suture of claim 1 wherein the first and second adhesive precursor comprises a two-part adhesive when combined.

8. The surgical suture of claim 1 wherein a barb of the plurality of barbs is a compound barb including at least a first and second barb inner surface.

9. The surgical suture of claim 8 wherein the first barb inner surface comprises the inner core material.

10. The surgical suture of claim 9 wherein the second barb inner surface comprises the inner core material.

11. The surgical suture of claim 8 , wherein the compound barb further includes at least a first and second inner body surfaces, wherein first inner body surface penetrates through the outer sheath to expose the inner core without penetrating the inner core and the second inner body surface runs along a length of the exposed inner core.

12. The surgical suture of claim 11 , wherein the first body inner surface, the first barb inner surface and the second barb inner surface include only the outer sheath including the second precursor adhesive or catalyst and the second inner body surface includes only inner core and the first adhesive precursor.

13. The surgical suture of claim 1 further comprising a second inner core comprising at least one of a second adhesive precursor or a catalyst.

14. The surgical suture of claim 1 wherein the first and second adhesive precursors comprises reactive adhesive precursors.

15. The surgical suture of claim 1 wherein the first and second adhesive precursors comprises initiated adhesive precursors.

16. The surgical suture of claim 1 wherein the first and second adhesive precursors comprises click reactive members.

17. The surgical suture of claim 1 wherein the first adhesive precursor comprises a first material including pendant electrophilic groups and the second adhesive precursor comprises a second material including pendant nucleophilic groups capable of reacting with the electrophilic groups of the first adhesive precursor.

18. A method of forming a barbed suture comprising:
providing a filament having an elongate body and including an inner core and an outer sheath, the inner core including at least one first adhesive precursor and the outer sheath including at least one of a second adhesive precursor or a catalyst; and,
forming a plurality of barbs on a surface of the filament which expose a portion of the inner core including the first adhesive precursor and the outer sheath including at least one of the second adhesive precursor or the catalyst to allow the inner core to adhere to tissue following implantation.

19. A surgical mesh comprising:
at least one filament having an elongated body including an inner core and outer sheath, the inner core including a first adhesive precursor and the outer sheath including at least one of a second adhesive precursor or a catalyst, and,
a plurality of barbs formed along a surface of the elongated body and exposing a portion of the inner core and the first adhesive precursor and the outer sheath and at least one of the second adhesive precursor or the catalyst.

Assignees

• Covidien Lp

Inventors

• Ostapoff Roland
• Sargeant Timothy

Classifications

• A61B2017/00004

  (bio)absorbable, (bio)resorbable or resorptive · CPC title

• A61B17/06166 Primary

  Sutures (suture materials A61L17/00; manufacture of artificial threads D01D; treatment of threads D06M) · CPC title

• A61B17/12131

  characterised by the type of occluding device · CPC title

• A61B2017/0406

  Pledgets · CPC title

• A61L17/105 Primary

  Polyesters not covered by A61L17/12 · CPC title