Trigger wire system

• US 8,114,145 B2
• Filed: 03/11/2010
• Issued: 02/14/2012
• Est. Priority Date: 05/29/2002
• Status: Expired due to Term

• Current Assignee: Cook Medical Incorporated (Cook Group Incorporated)
• Original Assignee: Cook Medical Incorporated (Cook Group Incorporated)
• Inventors: Hartley, David Ernest, Mills, Edward Graham, Rasmussen, Erik Edelboe, Schultz, Jens Vejby
• Primary Examiner(s): Sweet, Thomas J
• Assistant Examiner(s): Prone, Christopher D
• Application Number:
  US12/722,214
• Publication Number:
  US 20100168838A1
• Time in Patent Office: 705 Days
• Field of Search: 623/1.11
• 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: A61F 2002/9511 the retaining means being filaments or wires
• CPC Class Codes: A61F 2002/9665 with additional retaining means
• CPC Class Codes: A61M 2025/0096 being laterally outward extensions or tools, e.g. hooks or fibres
• CPC Class Codes: A61M 25/00 Catheters; Hollow probes dilators A61M29/00; peritoneal catheters A61M1/285; tracheal tubes A61M16/04; for drainage A61M27/00; for uterus, vagina or rectum A61M31/00 ; for measuring or testing A61B; materials for catheters A61L29/00

Abstract

A prosthesis deployment device having a elongate catheter body and a trigger wire guide concentric about the elongate catheter body where the trigger wire guide comprises three trigger wire lumens separate and apart from a guide wire lumen, with three trigger wires being at least partially disposed in the three trigger wire lumens and configured to engage a portion of a prosthesis to retain the prosthesis adjacent to the trigger wire guide.

Claims

1. A prosthesis deployment device comprising:

a nose cone dilator located on a proximal end of the deployment device;

an elongate catheter body coupled to the nose cone dilator, the elongate catheter body having a guide wire lumen extending therethrough;

a trigger wire guide concentric about the elongate catheter body and extending along at least a portion of the elongate catheter body, the trigger wire guide comprising;

an enlarged proximal portion adjacent to the nose cone dilator;

a distal portion of increasing diameter transitioning to the enlarged proximal portion having a maximum outer diameter less than the outer diameter of the enlarged proximal portion;

at least one trigger wire lumen formed within the trigger wire guide, the at least one trigger wire lumen separate and apart from the guide wire lumen; and

an aperture in the least one trigger wire guide; and

at least one trigger wire at least partially disposed within the at least one trigger wire lumen, the at least one trigger wire configured to exit the aperture to engage the prosthesis, a stent of the prosthesis, or a suture retaining the prosthesis, and enter the same aperture to thereby retain a portion of the prosthesis adjacent to the trigger wire guide.

2. The prosthesis deployment device of claim 1 wherein the trigger wire guide is coaxial with the guide wire catheter.

3. The prosthesis deployment device of claim 1 wherein a proximal portion of the trigger wire guide has a substantially constant diameter.

4. The prosthesis deployment device of claim 3 wherein the aperture is formed within the proximal portion of the trigger wire guide.

5. The prosthesis deployment device of claim 1 wherein the at least one trigger wire lumen comprises at least two trigger wire lumens that are equidistantly located from one another within the trigger wire guide.

6. The prosthesis deployment device of claim 5 wherein the trigger wire guide is radially fixed relative to the guide wire catheter.

7. The prosthesis deployment device of claim 6 wherein the trigger wire guide extends only partially along a proximal portion of the guide wire catheter.

8. The prosthesis deployment device of claim 7 wherein the diameter of each of the at least two trigger wire lumens is less than the diameter of the guide wire lumen.

9. The prosthesis deployment device of claim 8 wherein the proximal portion has a substantially constant diameter.

10. A prosthesis deployment device comprising:

a nose cone dilator located on a proximal end of the deployment device;

an elongate catheter body coupled to the nose cone dilator, the elongate catheter body having a guide wire lumen extending therethrough;

a trigger wire guide concentric about the elongate catheter body and extending along at least a portion of the elongate catheter body, the trigger wire guide comprising;

an enlarged proximal portion adjacent to the nose cone dilator;

a distal portion of increasing diameter transitioning to the enlarged proximal portion having a maximum outer diameter less than the outer diameter of the enlarged proximal portion;

at least two trigger wire lumens formed within the trigger wire guide, each lumen separate and apart from the guide wire lumen; and

at least two apertures in the trigger wire guide; and

at least one trigger wire being at least partially disposed within each of the at least two trigger wire lumens and configured to exit each of the at least two apertures to engage the prosthesis, a stent of the prosthesis, or a suture retaining the prosthesis, and enter the same aperture to thereby retain a portion of the prosthesis adjacent to the trigger wire guide.

11. The prosthesis deployment device of claim 10 wherein the trigger wire guide is coaxial with the guide wire catheter.

12. The prosthesis deployment device of claim 11 wherein the at least two trigger wire lumens comprises three trigger wire lumens that are spaced equidistantly from one another within the trigger wire guide.

13. The prosthesis deployment device of claim 12 wherein the diameter of each of the three trigger wire lumens is less than the diameter of the guide wire lumen.

14. The prosthesis deployment device of claim 10 wherein the guide wire catheter is separate and apart from the trigger wire guide.

15. The prosthesis deployment device of claim 14 wherein the enlarged proximal portion of the trigger wire guide has a substantially constant diameter.

16. The prosthesis deployment device of claim 15 wherein the aperture in each of the at least two trigger wire lumens is formed along the enlarged proximal portion of the trigger wire guide.

17. A prosthesis deployment device comprising:

a nose cone dilator located on a proximal end of the deployment device;

an elongate catheter body coupled to the nose cone dilator, the elongate catheter body having a guide wire lumen extending therethrough;

a trigger wire guide concentric about the elongate catheter body extending along at least a portion of the elongate catheter body, the trigger wire guide comprising;

an enlarged proximal portion adjacent to the nose cone dilator;

a distal portion of increasing diameter transitioning to the enlarged proximal portion having a maximum outer diameter less than the outer diameter of the enlarged proximal portion;

three trigger wire lumens formed within the trigger wire guide, each trigger wire lumen being separate from the guide wire lumen and extending at least partially within the trigger wire guide; and

at least one aperture in the least one trigger wire guide; and

three trigger wires extending through the trigger wire guide, one trigger wire being at least partially disposed within each lumen and configured to exit each aperture to engage the prosthesis, a stent of the prosthesis, or a suture retaining the prosthesis and enter the same aperture to thereby retain a portion of the prosthesis adjacent to the trigger wire guide.

18. The prosthesis deployment device of claim 17 wherein the three trigger wire lumens are spaced equidistantly from one another within the trigger wire guide.

19. The prosthesis deployment device of claim 17 wherein each of the diameters of each of the three trigger wire lumens is less than the diameter of the guide wire lumen.

20. The prosthesis deployment device of claim 19 wherein the apertures for each of the three trigger wire lumens is formed along the enlarged portion of the guide wire catheter.