SYSTEM FOR DELIVERING A STENT

• US 20080255654A1
• Filed: 03/21/2008
• Published: 10/16/2008
• Est. Priority Date: 03/22/2007
• Status: Abandoned Application

• Current Assignee: Bay Street Medical, Inc.
• Original Assignee: Bay Street Medical, Inc.
• Inventors: Hebert, Stephen, Levine, Marc-Alan
• Application Number:
  US12/053,099
• Publication Number:
  US 20080255654A1
• Time in Patent Office: Days
• US Class Current: 623/1.11
• CPC Class Codes: A61F 2/95 Instruments specially adapted for placement or removal of stents or stent-grafts
• CPC Class Codes: A61F 2/966 with relative longitudinal movement between outer sleeve and prosthesis, e.g. using a push rod
• CPC Class Codes: A61M 2025/09091 where a sheath surrounds the coil at the distal part
• CPC Class Codes: A61M 2025/09175 having specific characteristics at the distal tip
• CPC Class Codes: A61M 2025/09183 having tools at the distal tip
• CPC Class Codes: A61M 25/09 Guide wires

Abstract

A stent delivery system including an elongate member having a proximal segment and a distal segment, the distal segment having a first coil section, a second coil section, an intermediate coil section located between the first and second coil sections and a plastic material overlying one or more of the coil sections.

Claims

1. A stent delivery system including:

an elongate member having a proximal segment and a distal segment, the distal segment having a first coil section, a second coil section, an intermediate coil section located between the first and second coil sections and;

a plastic material overlying one or more of the coil sections.

2. A stent delivery system according to claim 1, wherein the plastic material is a heat shrink tubing.

3. A stent delivery system according to claim 1, wherein the first coil section is a proximal coil section proximal to the proximal segment.

4. A stent delivery system according to claim 3, wherein the intermediate coil section has a diameter less than one or the other or both the diameters of the proximal and distal coil sections.

5. A stent delivery system according to claim 1, wherein the coil sections are of substantially uniform diameter.

6. A stent delivery system according to claim 1, wherein a first gap is formed between the first and intermediate coil section.

7. A stent delivery system according to claim 1, wherein a second gap is formed between the intermediate and second coil sections.

8. A stent delivery system according to claim 6, wherein a second gap is formed between the intermediate and second coil sections.

9. A stent delivery system according to claim 1, wherein the coil sections are composed of a single coil.

10. A stent delivery system according to claim 1, wherein the coil sections are composed of discrete coils.

11. A stent delivery system according to claim 1, wherein the plastic material has a reduced diameter region overlying at least a portion of the intermediate coil section.

12. A stent delivery system according to claim 11, wherein the reduced diameter is formed by a melting process.

13. A stent delivery system according to claim 11, wherein the reduced diameter region includes at least one of a taper and a step down region.

14. A stent delivery system according to claim 1 comprising a core member positioned within one or more of the coil sections.

15. A stent delivery system according to claim 14, wherein the core member comprises one or more tapers.

16. A stent delivery system according to claim 14, wherein the core member comprises one or more steps.

17. A stent delivery system according to claim 1, wherein the plastic material comprises one or more tapers.

18. A stent delivery system according to claim 1, wherein the plastic material comprises one or more steps.

19. A stent delivery system according to claim 1, wherein the plastic material comprises a doped plastic.

20. A stent delivery system according to claim 7, wherein the first gap is configured to receive a radiopaque marker positioned on a stent to be mounted on the stent delivery system.