Medical devices

• US 8,048,143 B2
• Filed: 06/13/2008
• Issued: 11/01/2011
• Est. Priority Date: 01/22/2004
• Status: Expired due to Fees

• Current Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Original Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Inventors: Shaw, William J.
• Primary Examiner(s): Stewart; Alvin J.
• Application Number:
  US12/139,033
• Publication Number:
  US 20080312731A1
• Time in Patent Office: 1,236 Days
• Field of Search: 623/1.15, 623 138- 154, 623 237- 2376, 623/23.64, 623/23.65, 623/23.66, 623/23.69, 606/139, 606/144, 606/148, 606151-157, 606191-201
• US Class Current: 623/1.15
• CPC Class Codes: A61F 2/90 characterised by a net-like or mesh-like structure
• CPC Class Codes: A61F 2210/0076 multilayered, e.g. laminated structures
• CPC Class Codes: A61F 2230/0013 Horseshoe-shaped, e.g. crescent-shaped, C-shaped, U-shaped
• CPC Class Codes: A61L 27/10 Ceramics or glasses
• CPC Class Codes: A61L 27/446 with other specific inorganic fillers other than those covered by A61L27/443 or A61L27/46
• CPC Class Codes: A61L 29/02 Inorganic materials
• CPC Class Codes: A61L 29/126 having a macromolecular matrix
• CPC Class Codes: A61L 29/18 Materials at least partially X-ray or laser opaque
• CPC Class Codes: A61L 31/026 Ceramic or ceramic-like structures, e.g. glasses
• CPC Class Codes: A61L 31/128 containing other specific inorganic fillers not covered by A61L31/126 or A61L31/127
• CPC Class Codes: A61L 31/18 Materials at least partially X-ray or laser opaque
• CPC Class Codes: Y10T 428/1314 Contains fabric, fiber particle, or filament made of glass, ceramic, or sintered, fused, fired, or calcined metal oxide, or metal carbide or other inorganic compound [e.g., fiber glass, mineral fiber, sand, etc.]
• CPC Class Codes: Y10T 428/1362 Textile, fabric, cloth, or pile containing [e.g., web, net, woven, knitted, mesh, nonwoven, matted, etc.]
• CPC Class Codes: Y10T 428/139 Open-ended, self-supporting conduit, cylinder, or tube-type article

Abstract

Medical devices including one or more ceramic fibers are disclosed. In some embodiments, each dimension of the ceramic fiber(s) is equal to or greater than one micron.

Claims

1. A medical device, comprising:

a structure comprising a polymer matrix and a first ceramic fiber embedded in the matrix, the first ceramic fiber comprising a first metalloid, wherein each dimension of the first ceramic fiber is equal to or greater than one micron, and the device is in the form of a stent or a stent-graft.

2. The device of claim 1, wherein the first ceramic fiber further comprises a second metalloid.

3. The device of claim 2, wherein the first metalloid comprises an element selected from the group consisting of silicon and boron.

4. The device of claim 2, wherein the first ceramic fiber comprises silicon borocarbonitride.

5. The device of claim 1, wherein the first ceramic fiber further comprises a non-metallic element.

6. The device of claim 1, wherein the first ceramic fiber is at least about five microns long.

7. The device of claim 1, wherein the first ceramic fiber is from about five microns to about 25,000 microns long.

8. The device of claim 1, wherein the first ceramic fiber is at least about five microns wide.

9. The device of claim 1, wherein the first ceramic fiber is from about five microns to about 500 microns wide.

10. The device of claim 1, wherein the first ceramic fiber extends continuously along an entire length of the device.

11. The device of claim 1, further comprising a second ceramic fiber different from the first ceramic fiber.

12. The device of claim 1, wherein the structure is a tubular member.

13. The device of claim 1, in the form of a stent.

14. The device of claim 1, in the form of a stent-graft.

15. The device of claim 1, wherein the first ceramic fiber extends continuously along an entire length of the device.

16. A medical device, comprising:

a structure comprising a polymer matrix and a first ceramic fiber embedded in the matrix, the first ceramic fiber comprising a first metalloid, wherein each dimension of the first ceramic fiber is equal to or greater than one micron, and the device is in the form of a stent, a stent-graft, a graft, a medical balloon, or a catheter, wherein the device further comprises a therapeutic agent.

17. A medical device, comprising:

a structure comprising a polymer matrix and a first ceramic fiber embedded in the matrix, the first ceramic fiber comprising a first metalloid, wherein each dimension of the first ceramic fiber is equal to or greater than one micron, and the device is in the form of a stent, a stent-graft, a graft, a medical balloon, or a catheter, wherein the first ceramic fiber extends helically about the device.