IMPLANTABLE MEDICAL DEVICE WITH BONDING REGION

• US 20170119556A1
• Filed: 10/27/2016
• Published: 05/04/2017
• Est. Priority Date: 10/30/2015
• Status: Abandoned Application

• Current Assignee: Boston Scientific Scimed, Inc. (Boston Scientific Corporation)
• Original Assignee: Boston Scientific Scimed, Inc. (Boston Scientific Corporation)
• Inventors: Holly, Thomas, Folan, Martyn G., Keating, Thomas M., Walsh, Michael
• Application Number:
  US15/335,566
• Publication Number:
  US 20170119556A1
• Time in Patent Office: Days
• 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 2/90 characterised by a net-like or mesh-like structure
• CPC Class Codes: A61F 2230/0069 cylindrical
• CPC Class Codes: A61F 2240/001 Designing or manufacturing processes
• CPC Class Codes: D04B 21/12 characterised by thread material

Abstract

Medical devices and methods for making and using a medical device are disclosed. An example medical device may include an implantable endoprosthesis. The implantable endoprosthesis may include a cylindrical body having a proximal end, a distal end, and an axial bonding region extending between the proximal end and the distal end. The cylindrical body may include one or more winding filaments and a plurality of discrete axial bonds disposed along the axial bonding region. The discrete axial bonds may secure together edge regions of the one or more winding filaments.

Claims

1. An implantable endoprosthesis, comprising:

a cylindrical body having a proximal end, a distal end, and an axial bonding region extending between the proximal end and the distal end;

wherein the cylindrical body includes one or more winding filaments; and

a plurality of discrete axial bonds disposed along the axial bonding region, the discrete axial bonds securing together edge regions of the one or more winding filaments.

2. The endoprosthesis of claim 1, wherein the one or more winding filaments includes a braided portion, a knitted portion, or both.

3. The endoprosthesis of claim 2, wherein the one or more winding filaments includes a braided portion and a knitted portion, wherein the braided portion is interwoven with the knitted portion.

4. The endoprosthesis of claim 1, wherein the winding filaments includes a first filament having a first radial compression strength and a second filament having a second radial compression strength different from the first radial compression strength.

5. The endoprosthesis of claim 1, wherein the discrete axial bonds include a weld.

6. The endoprosthesis of claim 1, wherein the cylindrical body further comprises a bifurcated portion.

7. The endoprosthesis of claim 6, wherein the cylindrical body includes a second axial bonding region.

8. An implantable endoprosthesis, comprising:

a tubular scaffold including a proximal end, a distal end and a longitudinal axis, the tubular scaffold including at least a first filament including a first set of windings and a second set of windings;

a bonding region extending along the tubular scaffold including a plurality of discrete bonds;

wherein the one or more discrete bonds secure the first set of windings to the second set of windings.

9. The endoprosthesis of claim 8, further comprising a second filament, wherein the first filament includes a braided portion and the second filament includes a knitted portion.

10. The endoprosthesis of claim 9, wherein the braided portion and the knitted portion are interwoven.

11. The endoprosthesis of claim 8, further comprising a second filament, wherein the first filament includes a first material and the second filament includes a second material different from the first material.

12. The endoprosthesis of claim 8, wherein the tubular scaffold includes a bifurcated portion.

13. The endoprosthesis of claim 12, wherein tubular scaffold includes a second bonding region including a plurality of discrete bonds along the bifurcated portion.

14. A method of making an implantable endoprosthesis, the method comprising:

positioning at least one filament on along a planar surface of a base, the base including a plurality of projections extending away from the surface;

wherein positioning the at least one filament on the planar surface of the base includes winding the at least one filament along the base by winding the filament about the plurality of projections to form a substantially planar stent structure, the planar stent structure including a first side and a second side and one or more interstices therebetween;

removing the planar stent structure from the planar surface;

positioning the planar stent structure around a shaping mandrel; and

attaching the first side of the stent structure to the second side of the stent structure.

15. The method of claim 14, wherein attaching the first side of the stent structure to the second side of the stent structure further includes forming a bonding region.

16. The method of claim 15, wherein the bonding region includes at least one weld.

17. The method of the claim 14 wherein positioning the at least one filament on a planar surface comprises both braiding and knitting the filament around the plurality of projections.

18. The method of claim 14, wherein positioning the planar stent structure around a shaping mandrel includes positioning the planar stent structure around a bifurcated mandrel.

19. The method of claim 14, wherein positioning the at least one filament between at least two of the plurality of projections to form a substantially planar stent structure includes forming a third side and a fourth side.

20. The method of claim 19, further comprising attaching the third side to the fourth side to form a second bonding region.