Anti-migration stent

Patent metadata

Field	Value
Publication number	US-11806258-B2
Application number	US-202117411211-A
Country	US
Kind code	B2
Filing date	Aug 25, 2021
Priority date	Feb 6, 2015
Publication date	Nov 7, 2023
Grant date	Nov 7, 2023

Abstract

An illustrative stent may comprise an elongated tubular member having a first end and a second end and an intermediate region disposed therebetween. The elongated tubular member may include at least one flexible tie affixed to an end thereof. The tie may allow the stent to be attached to a lumen wall with a clip, such as a retention clip, to inhibit migration of the stent within the body lumen.

First claim

What is claimed is:

1. A stent, the stent comprising:
an elongated tubular member having a first end, a second end and an intermediate region disposed therebetween, the elongated tubular member having at least one aperture at the first end; and
a biodegradable tie having a first discrete opening at a first end, a second discrete opening at a second end, the first and second discrete openings spaced apart by a middle region defining a first portion extending between the first discrete opening and the second discrete opening and a second portion extending between the first discrete opening and the second discrete opening, the first and second portions secured to one another along the middle region;
wherein the first end of the biodegradable tie is attached to the aperture in the elongated tubular member and the second end of the biodegradable tie is configured to extend beyond the first end of the elongated tubular member to be secured to tissue at a location beyond the first end of the elongated tubular member with a securing mechanism, wherein in the absence of the securing mechanism the second end of the biodegradable tie is configured to hang into a lumen of the elongated tubular member.

2. The stent of claim 1 , wherein the biodegradable tie is flexible.

3. The stent of claim 1 , wherein the elongated tubular member comprises at least one filament defining the at least one aperture, wherein the biodegradable tie is attached to the filament.

4. The stent of claim 3 , wherein the biodegradable tie is knotted to the filament of the elongated tubular member.

5. The stent of claim 3 , wherein the biodegradable tie is adhesively secured to the filament of the elongated tubular member.

6. The stent of claim 1 , further comprising a second biodegradable tie attached to the second end of the elongated tubular member.

7. The stent of claim 1 , further comprising at least one clip configured to be secured to the biodegradable tie.

8. The stent of claim 7 , wherein the clip is a hemostasis clip including a pair of jaws configured to clamp the biodegradable tie to tissue.

9. A kit for securing a stent, the kit comprising:
a stent having a first end, a second end and an intermediate region disposed therebetween;
at least one biodegradable tie having a first end configured to be attached to the first end of the stent and configured to extend beyond the first end of the stent; and
at least one clip configured to be removably attached to the at least one biodegradable tie, wherein the at least one clip is a hemostasis clip including a pair of jaws configured to clamp the at least one biodegradable tie to tissue;
wherein when the at least one biodegradable tie is attached to the stent, and in the absence of the clip, a second end of the at least one biodegradable tie is configured to hang freely into a lumen of the stent via gravity.

10. The kit of claim 9 , wherein the at least one biodegradable tie comprises a single loop.

11. The kit of claim 10 , wherein a first portion of the single loop is secured to a second portion along an intermediate of the single loop to define a first aperture and a second aperture.

12. The kit of claim 9 , wherein the stent includes a filament and the at least one biodegradable tie is wrapped around the filament adjacent to the first end of the stent.

13. The kit of claim 9 , wherein the at least one biodegradable tie includes a plurality of ties, some of which are attached to the first end of the stent and some of which are attached to the second end of the stent, wherein the at least one clip includes a plurality of clips, one for each tie.

14. The kit of claim 9 , wherein the at least one biodegradable tie is flexible.

Assignees

• Boston Scient Scimed Inc

Inventors

• Hingston John A
• Amos Michael D
• Brown Terry V
• Rubesch Timothy L

Classifications

• A61F2/82

  Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents (stent-grafts for tubular structures of the body other than blood vessels A61F2/04; stent-grafts for blood vessels A61F2/07) · CPC title

• A61F2/848 Primary

  having means for fixation to the vessel wall, e.g. barbs · CPC title

• A61F2/90

  characterised by a net-like or mesh-like structure · CPC title

• A61F2/91

  made from perforated sheets or tubes, e.g. perforated by laser cuts or etched holes · CPC title

• A61F2002/044

  Oesophagi or esophagi or gullets · CPC title