Stent delivery system

• US 9,084,692 B2
• Filed: 11/17/2011
• Issued: 07/21/2015
• Est. Priority Date: 11/17/2010
• Status: Active Grant

• Current Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Original Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Inventors: Grabowski, Gerald, Gunderson, Richard C., Hacker, Dean, Tillman, Corey, Lind, Jason
• Primary Examiner(s): Eastwood, David
• Assistant Examiner(s): TON, MARTIN TRUYEN
• Application Number:
  US13/299,008
• Publication Number:
  US 20120158120A1
• Time in Patent Office: 1,342 Days
• Field of Search: 623/1.11, 623/1.12, 606/108, 606191-194, 606/197, 606/198, 604/224, 604/165.02
• US Class Current: 1/1
• CPC Class Codes: A61F 2/95 Instruments specially adapted for placement or removal of stents or stent-grafts
• CPC Class Codes: A61F 2/9517 handle assemblies therefor
• CPC Class Codes: A61F 2/966 with relative longitudinal movement between outer sleeve and prosthesis, e.g. using a push rod

Abstract

Stent delivery systems, clip members for use with stent delivery systems, and methods for making and using the same are disclosed. An example stent delivery system may include an inner shaft having a distal region. A stent may be disposed about the distal region. A deployment sheath may be slidably disposed about the inner shaft. A handle may be coupled to the inner shaft. The handle may include a clip member having a first holding portion and a second holding portion. The inner shaft may extend through the first holding portion and the second holding portion. A holding cuff may be thermally bonded to the inner shaft. The holding cuff may be positioned between the first holding portion and the second holding portion.

Claims

1. A stent delivery system, comprising:

an inner shaft having a distal region;

a stent disposed about the distal region;

a deployment sheath slidably disposed about the inner shaft;

a handle coupled to a proximal region of the inner shaft and attached to the deployment sheath, the handle including a handle housing;

a clip member disposed within and secured to the handle housing, the clip member having a first tubular holding portion spaced apart at a longitudinal distance from a second tubular holding portion;

wherein the inner shaft extends through the first holding portion and the second holding portion; and

a holding cuff bonded to the inner shaft, the holding cuff being positioned between the first holding portion and the second holding portion so as to prevent unwanted movement of the inner shaft relative to the handle.

2. The system of claim 1, wherein the holding cuff has a substantially circular cross-sectional shape.

3. The system of claim 1, wherein the holding cuff has a noncircular cross-sectional shape.

4. The system of claim 1, wherein the holding cuff is rotatable relative to the handle.

5. The system of claim 1, wherein the holding cuff is substantially non-rotatable relative to the handle.

6. The system of claim 1, wherein the holding cuff is thermally bonded to the inner shaft with a hot jaw.

7. The system of claim 1, wherein the holding cuff is thermally bonded to the inner shaft with a laser.

8. The system of claim 1, wherein the holding cuff is thermally bonded to the inner shaft with a diode laser.

9. The system of claim 1, wherein the holding cuff is thermally bonded to the inner shaft with a weld.

10. The system of claim 1, wherein the first holding portion of the clip member has a flared proximal end.

11. The system of claim 1, further comprising an outer member disposed about the deployment sheath.

12. The system of claim 1, wherein the inner member has a tip attached to a distal end thereof, the tip having one or more flats formed therein.

13. The system of claim 1, wherein the inner member has one or more perfusion ports formed therein.

14. A stent delivery system, comprising:

an inner shaft having a distal region;

a deployment sheath slidably disposed about the inner shaft;

a handle coupled to a proximal region of the inner shaft and attached to the deployment sheath, the handle including a handle housing;

a clip member comprising;

a clip member body;

one or more legs extending away from the body, the legs being configured to attach to the clip member body to the inner housing of the handle of the stent delivery system;

a first tubular holding portion formed in the clip member body;

a second tubular holding portion formed in the clip member body;

wherein the first tubular holding portion is spaced apart at a longitudinal distance from the second tubular holding portion, wherein the inner shaft extends through the first holding portion and the second holding portion; and

a cuff positioned between the first holding portion and the second holding portion, the cuff being bonded to the inner member so as to substantially prevent proximal and distal movement of the inner member relative to the clip member body.

15. The system of claim 14, wherein the cuff is configured to allow the inner shaft to rotate relative to the handle.

16. The system of claim 14, wherein the cuff is configured to prevent the inner shaft from rotating relative to the handle.

17. The system of claim 14, wherein the cuff is thermally bonded to the inner shaft with a hot jaw.

18. The system of claim 14, wherein the cuff is thermally bonded to the inner shaft with a laser.

19. The system of claim 14, wherein the cuff is thermally bonded to the inner shaft with a diode laser.

20. The system of claim 14, wherein the cuff is thermally bonded to the inner shaft with a weld.

21. The system of claim 14, wherein the first holding portion of the clip member has a flared proximal end.