Inflatable balloon stent

• US 10,166,126 B2
• Filed: 12/08/2015
• Issued: 01/01/2019
• Est. Priority Date: 12/08/2014
• Status: Active Grant

• Current Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Original Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Inventors: Zupkofska, Michael E.
• Primary Examiner(s): Sweet, Thomas J
• Assistant Examiner(s): Shipmon, Tiffany
• Application Number:
  US14/962,790
• Publication Number:
  US 20160158040A1
• Time in Patent Office: 1,120 Days
• Field of Search: None
• CPC Class Codes: A61F 2/82 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; instruments specially adapted for placement or removal of stents or stent-grafts A61F2/95; for closing wounds, or holding wounds closed A61B17/04 - A61B17/115; dilators A61M29/00
• CPC Class Codes: A61F 2/844 folded prior to deployment
• CPC Class Codes: A61F 2/848 having means for fixation to the vessel wall, e.g. barbs
• CPC Class Codes: A61F 2/94 Stents retaining their form, i.e. not being deformable, after placement in the predetermined place
• CPC Class Codes: A61F 2/966 with relative longitudinal movement between outer sleeve and prosthesis, e.g. using a push rod
• CPC Class Codes: A61F 2002/0081 directly machined on the prosthetic surface, e.g. holes, grooves A61F2/30771 takes precedence
• CPC Class Codes: A61F 2002/044 Oesophagi or esophagi or gullets
• CPC Class Codes: A61F 2230/001 Figure-8-shaped, e.g. hourglass-shaped
• CPC Class Codes: A61F 2250/0003 having an inflatable pocket filled with fluid, e.g. liquid or gas
• CPC Class Codes: A61F 2250/0039 differing in diameter

Abstract

An illustrative stent may comprise an elongated tubular balloon having a first end and a second end and an intermediate region disposed therebetween. The elongated tubular balloon may have an inner wall and an outer wall, the inner wall and the outer wall connected at the first end and the second end to define an enclosed inflation chamber between the inner wall and the outer wall. The stent may further include an inflation valve.

Claims

1. A stent, the stent comprising:

an elongated tubular balloon having a first end and a second end and an intermediate region disposed therebetween, the elongated tubular balloon having a lumen extending from the first end to the second end;

an inflation chamber extending continuously from the first end to the second end of the elongated tubular balloon, the inflation chamber including a first flared portion at the first end, a second flared portion at the second end, and a body portion therebetween, wherein the body portion of the inflation chamber is defined between a radially outward wall and a radially inward wall of the inflation chamber, the radially inward wall defining the lumen of the elongated tubular balloon through a length of the elongated tubular balloon;

an outer layer disposed over at least a portion of an outer surface of the outer wall;

a plurality of holes positioned adjacent to the first and/or second ends of the elongated tubular balloon and extending from an outer surface of the outer layer to the outer surface of the outer wall, the plurality of holes configured to contact a body lumen when the elongated tubular balloon is in an expanded configuration; and

an inflation valve.

2. The stent of claim 1, wherein the inflation valve is disposed adjacent to one of the first or second ends of the elongated tubular balloon.

3. The stent of claim 1, wherein the first end has an outer diameter larger than an outer diameter of the intermediate region and the second end has an outer diameter larger than an outer diameter of the intermediate region.

4. The stent of claim 1, wherein the inflation valve comprises a one-way valve.

5. The stent of claim 1 wherein an outer surface of the outer wall comprises a textured surface.

6. The stent of claim 1, wherein the elongated tubular balloon comprises polyethylene terephthalate.

7. The stent of claim 1, further comprising at least one radiopaque marker element.

8. A stent, the stent comprising:

an elongated tubular balloon, the elongated tubular balloon comprising;

a flared first end and a flared second end and an intermediate region disposed therebetween;

a radially inward wall and a radially outward wall, the radially inward wall and the radially outward wall connected at both the flared first end and the flared second end to define an enclosed inflation chamber between the radially inward wall and the radially outward wall;

an outer layer disposed over at least a portion of an outer surface of the outer wall;

a plurality of holes positioned adjacent to the flared first end and/or the flared second end and extending from an outer surface of the outer layer to the outer surface of the outer wall, the plurality of holes configured to contact a body lumen when the elongated tubular balloon is in an expanded configuration to allow for tissue ingrowth;

wherein an inner surface of the radially inward wall of the elongated tubular balloon defines a lumen extending from the first end to the second end of the elongated tubular balloon; and

an inflation valve disposed adjacent to the first end of the elongated tubular balloon.

9. The stent of claim 8, wherein the flared first end has an outer diameter larger than an outer diameter of the intermediate region.

10. The stent of claim 8, wherein the flared second end has an outer diameter larger than an outer diameter of the intermediate region.

11. The stent of claim 8, wherein the inflation valve comprises a one-way valve.

12. The stent of claim 8, wherein a portion of an outer surface of the radially outward wall comprises a textured surface.

13. The stent of claim 8, wherein the elongated tubular balloon comprises polyethylene terephthalate.

14. The stent of claim 8, further comprising at least one radiopaque marker element.

15. A stent, the stent comprising:

an elongated tubular balloon, the elongated tubular balloon comprising;

a flared proximal end having a first outer diameter and a flared distal end having a second outer diameter and an intermediate region having a third outer diameter smaller than both the first outer diameter and the second outer diameter disposed between the flared proximal end and the flared distal end, the flared first end and/or the flared second end including a plurality of through holes, the plurality of through holes configured to contact a body lumen when the elongated tubular balloon is in an expanded configuration to allow for tissue ingrowth;

an inner wall and an outer wall extending along a length of the elongated tubular balloon, the inner wall and the outer wall connected at both the proximal end and the distal end to define an enclosed inflation chamber between the inner wall and the outer wall;

wherein an inner surface of the inner wall of the elongated tubular balloon defines a through lumen extending from the proximal end to the distal end of the elongated tubular balloon; and

an inflation valve disposed adjacent to the proximal end of the elongated tubular balloon.