IP Library › Granted Patent US 6,865,810
Granted Patent B2
US 6,865,810 · App. 10/185,837 · Granted Mar 15, 2005

Methods of making medical devices

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Quick Facts
Patent No.
US 6,865,810
App. No.
10/185,837
Granted
Mar 15, 2005
Kind
B2
Abstract

A method of making a stent includes providing a tubular member having a first layer, the first layer and the tubular member having different compositions, removing a portion of the tubular member, and removing a portion of the first layer from the tubular member.

Claims (40)

1. A method of making a stent, the method comprising:

providing a tubular member having a first layer on the tubular member, the first layer and the tubular member having different compositions;

removing a first portion of the tubular member; and

removing a second portion of the first layer from the tubular member while maintaining a portion of the tubular member that the second portion was located on,

wherein the tubular member and the first layer comprise metals; and

wherein an entire surface portion of the first layer is removed from the tubular member.

2. The method of claim 1 , further comprising finishing the tubular member into the stent.

3. The method of claim 2 , wherein the tubular member is finished by electropolishing.

4. The method of claim 1 , wherein the first layer contacts the tubular member.

5. The method of claim 1 , wherein the first layer is on only a portion of the tubular member.

6. The method of claim 1 , wherein the first layer is on substantially an entire surface of the tubular member.

7. The method of claim 1 , wherein the first layer is on an inner surface of the tubular member.

8. The method of claim 1 , wherein the first layer is on an outer surface of the tubular member.

9. The method of claim 1 , wherein a portion of the first layer is removed with the portion of the tubular member.

10. The method of claim 1 , wherein the tubular member has a second layer, the first and second layers being on opposing surfaces of the tubular member, and the method comprises removing a portion of the tubular member and the first and second layers, and removing the first and second layers from the tubular member.

11. The method of claim 1 , wherein the tubular member is provided by co-drawing a first member that forms the tubular member and a second member that forms the first layer on an inner surface of the tubular member.

12. The method of claim 1 , wherein the tubular member is provided by co-drawing a first member that forms the tubular member and a second member that forms the first layer on an outer surface of the tubular member.

13. The method of claim 1 , further comprising forming the first layer on the tubular member.

14. The method of claim 13 , wherein the first layer comprises a metal and is formed by a process selected from a group consisting of electrodeposition and vapor deposition of the metal.

15. The method of claim 1 , wherein the stent comprises struts, and the removing of the portion of the tubular member comprises forming the struts.

16. The method of claim 1 , wherein the portion of the tubular member is removed by a laser.

17. The method of claim 1 , wherein the first layer is removed by dissolving the first layer.

18. The method of claim 1 , wherein the first layer is removed by melting the first layer.

19. The method of claim 1 , wherein the first layer is removed by mechanically removing the first layer.

20. The method of claim 1 , wherein the tubular member comprises a material selected from a group consisting of platinum, gold, palladium, rhenium, tantalum, tungsten, molybdenum, rhenium, nickel, cobalt, stainless steel, Nitinol, and alloys thereof.

21. The method of claim 1 , wherein the tubular member comprises a material selected from a group consisting of platinum, gold, and tantalum.

22. The method of claim 1 , wherein the first layer comprises a material selected from a group consisting of steel, cadmium, lead, magnesium, tin, zinc, titanium, stainless steel, and aluminum.

23. The method of claim 1 , wherein the first layer comprises a steel.

24. The method of claim 1 , further comprising forming a drug-releasing layer on the stent.

25. The method of claim 1 , wherein the entire first layer is removed from the tubular member.

26. A method of making a stent having struts, the method comprising:

providing a tubular member having a first layer, the first layer and the tubular member having different compositions;

removing a portion of the tubular member to form the struts and a portion of the first layer; and

removing the first layer from the tubular member to provide the stent,

wherein the tubular member and the first layer comprise metals.

27. The method of claim 26 , wherein the first layer is on an inner surface of the tubular member.

28. The method of claim 26 , wherein the first layer is on an outer surface of the tubular member.

29. The method of claim 26 , wherein the tubular member comprises a second layer on the tubular member, the first and second layers being on opposing surfaces of the tubular member.

30. The method of claim 26 , wherein the first layer is on an entire surface of the tubular member.

31. The method of claim 26 , further comprising forming a drug-releasing layer on the stent.

Assignments (1)
CHANGE OF NAME Recorded Nov 6, 2006
From: SCIMED LIFE SYSTEMS, INC.
To: BOSTON SCIENTIFIC SCIMED, INC.
Reel/Frame 018505/0868 →