Single operator stenting system

• US 20030074046A1
• Filed: 08/27/2002
• Published: 04/17/2003
• Est. Priority Date: 08/27/2001
• Status: Active Grant

• Current Assignee: Medinol Limited (Medinol USA Incorporated)
• Original Assignee: Medinol Limited (Medinol USA Incorporated)
• Inventors: Richter, Jacob
• Granted Patent: US 7,172,619 B2
• Time in Patent Office: Days
• US Class Current: 623/1.11
• CPC Class Codes: A61F 2/958 Inflatable balloons for placing stents or stent-grafts

Abstract

Embodiments of a stent system include a catheter is made with only one lumen leading to a balloon. An arrangement is provided to easily lock a short wire in place at the distal end of the balloon. Multiple wires of different properties can be included in a package containing the stent and the delivery catheter, such that the physician will be able to choose the right wire tip according to the lesion and vessel treated and attach it at the distal tip of the balloon before beginning the stenting procedure.

Claims

1. A stent system comprising:

a catheter with a lumen;

a balloon in communication with said lumen disposed at the distal end of said catheter;

a stent disposed over said balloon; and

an arrangement, at the distal end of the balloon, for locking a short wire in place.

2. The stent system according to claim 1 wherein said catheter has only one lumen.

3. The stent system according to claim 1 and further including multiple wires of different properties supplied along with the stent and delivery catheter.

4. The stent system according to claim 3 wherein said multiple wires of different properties include a wire having areas of different flexibility.

5. The stent system according to claim 4 wherein said wire having areas of different flexibility has a stiff section, a more flexible section and most flexible section.

6. The stent system according to claim 5 wherein one of said areas is more steerable.

7. The stent system according to claim 4 wherein said multiple wires of different properties include wires selected from floppy wire, soft wire, hard wire, super-hard wire and wires having sections made up of two or more of these types of wire.

8. The stent system according to claim 4 and wherein said arrangement comprises a receptacle into which said wires may be lockably inserted.

9. The stent system according to claim 8 wherein said receptacle includes a spring loaded member at the distal end of balloon, and the wires have a beads on their ends which snap through and are retained by said spring loaded member.

10. The stent system according to claim 9 wherein at least three different wires are provided.

11. The stent system according to claim 4 wherein said multiple wires comprise a wire tip of about 2-8 inches.

12. The stent system according to claim 1 wherein said balloon has a high Rated Burst Pressure (RBP).

13. The stent system according to claim 4 wherein at least one of said wires includes a device for distal protection.

14. The stent system according to claim 1 wherein said device for distal protection comprises a balloon.

15. A stent system comprising:

a catheter with a lumen;

a balloon in communication with said lumen disposed at the distal end of said lumen;

a stent disposed over said balloon; and

a short wire removably locked in place at the distal end of the balloon.

16. The stent system according to claim 15 wherein said catheter has only one lumen.

17. The stent system according to claim 15 comprising a receptacle into which said short wire is lockably inserted.

18. The stent system according to claim 17 wherein said receptacle includes a spring-loaded member at the distal end of balloon, and each of the wires has a bead on its end which snaps through and is retained by said spring-loaded member.

19. The stent system according to claim 15 wherein said short wire comprises a wire tip of about 2-8 inches.

20. The stent system according to claim 15 wherein said balloon has a high Rated Burst Pressure (RBP).

21. The stent system according to claim 15 wherein said short wire includes a device for distal protection.

22. The stent system according to claim 21 wherein said device for distal protection comprises a balloon.

23. A stent system kit comprising:

a catheter with a lumen;

a balloon in communication with said lumen disposed at the distal end of said lumen;

a stent disposed over said balloon;

a member at the distal end of the balloon for removably locking in place a short wire;

a plurality of short wires of different properties.

24. The stent system kit according to claim 23 wherein said catheter has only one lumen.

25. The stent system kit according to claim 23 wherein said plurality of short wires of different properties include a wire having areas of different flexibility.

26. The stent system kit according to claim 25 wherein said wire having areas of different flexibility has a stiff section, a more flexible section and most flexible section.

27. The stent system kit according to claim 26 wherein one of said areas is more steerable.

28. The stent system kit according to claim 23 wherein said plurality of short wires of different properties include wires selected from floppy wire, soft wire, hard wire, super-hard wire and wires having sections made up of two or more of these types of wire.

29. The stent system kit according to claim 23 wherein said member at the distal end of the balloon comprises a receptacle into which said wires may be lockably inserted.

30. The stent system kit according to claim 29 wherein said receptacle includes a spring loaded member at the distal end of balloon, and each of the short wires has a bead on its end which snaps through and is retained by said spring loaded member.

31. The stent system kit according to claim 23 wherein at least three different wires are provided.

32. The stent system kit according to claim 23 wherein each of said plurality of short wires comprise a wire tip of about 2-8 inches.

33. The stent system kit according to claim 23 wherein said balloon is a high Rated Burst Pressure (RBP).

34. The stent system kit according to claim 23 wherein at least one of said wires includes a device for distal protection.

35. The stent system kit according to claim 23 wherein said device for distal protection comprises a balloon.

36. A method of preparing a stent system for use in disposing a stent in a patient comprising:

selecting a short wire; and

locking said short wire in place at the distal end of a balloon disposed at the distal end of a catheter, with the stent disposed over the balloon.

37. The method according to claim 36 wherein said selecting is done based on the nature of a lesion and a vessel to be treated.

38. The method according to claim 37 wherein said lesion includes an occlusive mass and the properties of the different wires are selected based on the tortuosity of the vessel, the length and tortuosity of the lesion and the rate of occlusion and nature (hardness) of the occlusive mass

39. The method according to claim 36 and further including providing a plurality of short wires from which to select.

40. The method according to claim 36 and further including:

inserting said catheter with said balloon, stent, and wire at its distal end into the vessel in the patient;

moving the stent to the lesion;

inflating the balloon to expand and deploy the stent at the lesion;

deflating the balloon; and

removing the catheter.

41. The method according to claim 40 and further including deploying a device for distal protection at the forward section of said wire to prevent particles released during the deployment of the stent being swept downstream, prior to deploying the stent.