Catheter

• US 20060015168A1
• Filed: 07/13/2004
• Published: 01/19/2006
• Est. Priority Date: 07/13/2004
• Status: Active Grant

• Current Assignee: Boston Scientific Scimed, Inc. (Boston Scientific Corporation)
• Original Assignee: Scimed Life Systems Incorporated (Boston Scientific Corporation)
• Inventors: Gunderson, Richard C.
• Granted Patent: US 8,500,785 B2
• Time in Patent Office: Days
• US Class Current: 623/1.110
• CPC Class Codes: A61F 2/95 Instruments specially adapted for placement or removal of stents or stent-grafts
• CPC Class Codes: A61F 2250/0014 having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis
• CPC Class Codes: A61M 25/005 with embedded materials for reinforcement, e.g. wires, coils, braids

Abstract

Catheters, as well as related systems and methods are disclosed.

Claims

1. A catheter, comprising:

a tube; and

a coil at least partially surrounding the tube,

wherein;

the coil includes a first portion comprising a first material,

the coil includes a second portion comprising a second material different from the first material,

the second portion of the coil is disposed inwardly of the first portion of the first portion of the coil; and

the catheter is configured so that it can be used as an inner catheter in an implantable medical endoprosthesis delivery system.

2. The catheter of claim 1, wherein the coil is integral with an outer surface of the tube.

3. The catheter of claim 1, wherein the coil is helically wrapped around the catheter.

4. The catheter of claim 1, wherein the first material comprises a polymer.

5. The catheter of claim 4, wherein the polymer is selected from the group consisting of polyamides, polyurethanes, styrenic block copolymers, and mixtures thereof.

6. The catheter of claim 1, wherein the second material comprises a metal or alloy.

7. The catheter of claim 6, wherein the second material is selected from the group consisting of stainless steel, shape memory alloys, platinum, gold and combinations thereof.

8. The catheter of claim 1, further comprising a coating surrounding at least a portion of the tube and the coil along an axial length of the catheter.

9. The catheter of claim 8, wherein the coating contacts an exposed surface of the tube and an exposed surface of the coil.

10. The catheter of claim 8, wherein the coating is a heat shrink coating.

11. An implantable medical endoprosthesis delivery system, comprising:

a catheter, comprising;

a tube; and

a coil at least partially surrounding the tube; and

a sheath at least partially surrounding the tube,

wherein;

the coil includes a first portion comprising a first material,

the coil includes a second portion comprising a second material different from the first material,

the second portion of the coil is disposed inwardly of the first portion of the first portion of the coil; and

the catheter and the sheath are configured so that an implantable medical endoprosthesis can be disposed therebetween.

12. The implantable medical endoprosthesis delivery system of claim 11, further comprising the implantable medical endoprosthesis between the catheter and the sheath.

22. A method of treating a lumen within a patient, the method comprising:

inserting the system of claim 12 in the lumen; and

expanding the system.

13. A catheter, comprising:

a tube;

a coil at least partially surrounding the tube; and

a coating at least partially surrounding the tube and the coil,

wherein the catheter is configured so that it can be used as the inner catheter in an implantable medical endoprosthesis delivery system.

14. The catheter of claim 13, wherein the coating contacts an exposed surface of the catheter and an exposed surface of the coil.

15. The catheter of claim 13, wherein the coating is a heat shrink coating.

16. The catheter of claim 13, wherein the coating comprises a polymer selected from the group consisting of polyesters, FEPs and PTFEs.

17. The catheter of claim 13, wherein the coil is integral with an outer surface of the tube.

18. The catheter of claim 13, wherein the coil is helically wrapped around the catheter.

19. The catheter of claim 13, wherein the catheter comprises a first material and a second material different from the first material.

20. An implantable medical endoprosthesis delivery system, comprising:

a catheter, comprising;

a tube;

a coil at least partially surrounding the tube; and

a coating at least partially surrounding the tube and the coil; and

a sheath at least partially surrounding the catheter,

wherein the catheter and the sheath are configured so that an implantable medical endoprosthesis can be disposed therebetween.

21. The implantable medical endoprosthesis delivery system of claim 20, further comprising the implantable medical endoprosthesis between the catheter and the sheath.

23. A method of treating a lumen within a patient, the method comprising:

inserting the system of claim 21 in the lumen; and

expanding the system.