Stent-containing medical devices and methods of using the same

Patent metadata

Field	Value
Publication number	US-12220334-B2
Application number	US-202217873712-A
Country	US
Kind code	B2
Filing date	Jul 26, 2022
Priority date	Jun 27, 2014
Publication date	Feb 11, 2025
Grant date	Feb 11, 2025

Abstract

The present disclosure pertains to medical devices that comprise a stent body having two ends, a central region therebetween, and comprising structural elements extending around the stent body and a covering material disposed over the stent body, the covering material covering only a portion of the stent body, in which the covering material is provided with a plurality of openings that provide areas where the stent body is not covered by the covering material. The present disclosure further pertains to medical apparatuses that comprise such medical devices and methods of treatment using such medical devices.

First claim

What is claimed is:

1. A medical device comprising:
a stent body having two ends, a central region therebetween, and comprising structural elements extending around the stent body;
a covering material disposed over the stent body, the covering material covering only a portion of the stent body; and
a bonding material, the bonding material associated with only a portion of the structural elements;
wherein the covering material is provided with a plurality of openings that provide areas where the stent body is not covered by the covering material.

2. The medical device of claim 1 , wherein the covering material comprises:
(a) polysiloxanes;
(b) fluoropolymers;
(c) polyamides;
(d) polyesters;
(e) polyurethanes;
(f) polyolefin polymers;
(g) polyoxyalkylenes; or
(h) styrenic copolymers;
(i) any combinations one or more of the foregoing (a)-(h).

3. The medical device of claim 1 , wherein the plurality of openings are disposed around a circumference of the stent body.

4. The medical device of claim 1 , wherein the bonding material is associated with the structural elements only in areas of the stent body not covered by the covering material.

5. The medical device of claim 1 , wherein the bonding material is configured to bond to tissue when the bonding material is exposed to an energy source.

6. The medical device of claim 5 , wherein the energy source is selected from a light energy source, a microwave energy source, a radio frequency energy source, infrared energy source, radiation source, and a plasma energy source.

7. The medical device of claim 1 , wherein the bonding material is associated with the medical device by integrating the bonding material into at least a portion of the structural elements.

8. The medical device of claim 1 , wherein the medical device is self-expanding or balloon-expandable.

9. A method of treatment:
inserting into a body lumen a medical device that comprises a stent body having two ends, a central region therebetween, and comprising structural elements extending around the stent body; a covering material disposed over the stent body, the covering material covering only a portion of the stent body; and a bonding material, the bonding material associated with only a portion of the structural elements, wherein the covering material is provided with a plurality of openings that provide areas where the stent body is not covered by the covering material;
deploying the stent body in the body lumen such that the medical device contacts a tissue wall of the body lumen.

10. The method of claim 9 , wherein the covering material comprises:
(a) polysiloxanes;
(b) fluoropolymers;
(c) polyamides;
(d) polyesters;
(e) polyurethanes;
(f) polyolefin polymers;
(g) polyoxyalkylenes; or
(h) styrenic copolymers;
(i) any combinations one or more of the foregoing (a)-(h).

11. The method of claim 9 , wherein the plurality of openings are disposed around a circumference of the stent body.

12. The method of claim 9 , wherein the bonding material is associated with the structural elements only in areas of the stent body not covered by the covering material and wherein the method comprises bonding the bonding material to the tissue wall.

13. The method of claim 12 , wherein bonding the bonding material to the tissue wall comprises exposing the bonding material to an energy source selected from a light energy source, a microwave energy source, a radio frequency energy source, infrared energy source, radiation source, and a plasma energy source.

14. A medical apparatus, comprising: (a) medical device comprising a stent body having two ends, a central region therebetween, and comprising structural elements extending around the stent body; a covering material disposed over the stent body, the covering material covering only a portion of the stent body; and a bonding material, the bonding material associated with only a portion of the structural elements, wherein the covering material is provided with a plurality of openings that provide areas where the stent body is not covered by the covering material; and (b) balloon catheter or a catheter having a retractable sheath configured to deliver the medical apparatus.

15. The medical apparatus of claim 14 , wherein the covering material comprises:
(a) polysiloxanes;
(b) fluoropolymers;
(c) polyamides;
(d) polyesters;
(e) polyurethanes;
(f) polyolefin polymers;
(g) polyoxyalkylenes; or
(h) styrenic copolymers;
(i) any combinations one or more of the foregoing (a)-(h).

16. The medical apparatus of claim 14 , wherein the plurality of openings are disposed around a circumference of the stent body.

17. The medical apparatus of claim 14 , wherein the bonding material is associated with the structural elements only in areas of the stent body not covered by the covering material.

18. The medical apparatus of claim 17 , wherein the apparatus further comprises an energy source and wherein the medical device is configured to bond to tissue when the bonding material is exposed to the energy source.

19. The medical apparatus of claim 18 , wherein the energy source is selected from a light energy source, a microwave energy source, a radio frequency energy source, infrared energy source, radiation source, and a plasma energy source.

Assignees

• Boston Scient Scimed Inc

Inventors

• Pereira Peter J
• Clerc Claude O
• Fredrickson Gerald
• Zoll Jonathan

Classifications

• A61F2/958

  Inflatable balloons for placing stents or stent-grafts · CPC title

• A61F2/94 Primary

  Stents retaining their form, i.e. not being deformable, after placement in the predetermined place · CPC title

• A61F2/89

  the wire-like elements comprising two or more adjacent rings flexibly connected by separate members · CPC title

• A61L31/14

  Materials characterised by their function or physical properties {, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials} · CPC title

• A61L31/10 Primary

  Macromolecular materials · CPC title