Trigger wire system

• US 20030233140A1
• Filed: 05/29/2003
• Published: 12/18/2003
• Est. Priority Date: 05/29/2002
• Status: Active Grant

• Current Assignee: Cook Medical Technologies, LLC (Cook Group Incorporated)
• Original Assignee: Cook Incorporated (Cook Group Incorporated), William A. Cook Australia Pty. Ltd (Cook Group Incorporated)
• Inventors: Hartley, David Ernest, Schultz, Jens Vejby, Mills, Edward Graham, Rasmussen, Erik Edelboe
• Granted Patent: US 7,803,177 B2
• Time in Patent Office: Days
• 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 trigger wire guide for a prosthesis deployment device. The prosthesis deployment device has a proximal end extending to a proximal nose cone dilator and having a trigger wire or wires and trigger wire release mechanism to retain the proximal end of a prosthesis adjacent the nose cone dilator. The trigger wire guide retains the trigger wire or wires to prevent fouling of the trigger wire with a prosthesis when the prosthesis is carried on the deployment device. The guide can be crimped or soldered to a guide wire catheter or concentric with it.

Claims

1. A trigger wire guide for a prosthesis deployment device, the prosthesis deployment device being of a type having a guide wire catheter extending to a proximal nose cone dilator and having a trigger wire and trigger wire release mechanism adapted to retain the proximal end of a prosthesis distally of the nose cone dilator, wherein the trigger wire guide comprises a duct along at least part of the length of the guide wire catheter, the duct having at least one lumen for a trigger wire and an aperture in the duct adjacent the nose cone dilator for the trigger wire to exit the duct to engage the prosthesis, a stent of the prosthesis or a suture retaining the prosthesis to thereby retain the prosthesis.

2. A trigger wire guide as in claim 1 wherein the duct is coaxial with and surrounding the guide wire catheter.

3. A trigger wire guide as in claim 1 wherein the duct has three lumens for trigger wires.

4. A trigger wire guide as in claim 1 wherein the duct is formed by a concentric tube around the guide wire catheter and crimped thereto.

5. A trigger wire guide as in claim 1 wherein the duct is formed by a V shape cross section component retained to the guide wire catheter.

6. A trigger wire guide for a prosthesis deployment device, the prosthesis deployment device being of a type having a proximal end extending to a proximal nose cone dilator and having a trigger wire or wires and trigger wire release mechanism adapted to retain the proximal end of a prosthesis adjacent the nose cone dilator, comprising a trigger wire guide disposed on the deployment device to retain the trigger wire or wires to prevent fouling of the trigger wire with a prosthesis when the prosthesis is carried on the deployment device.

7. A prosthesis deployment device having a guide wire catheter extending to a proximal end and a trigger wire and trigger wire release mechanism adapted to retain the proximal end of a prosthesis distally of the proximal end, the trigger wire release mechanism comprising a duct along at least part of the length of the guide wire catheter, the duct having at least one lumen for a trigger wire and an aperture in the duct adjacent the proximal end for the trigger wire to exit the duct to engage the prosthesis, a stent of the prosthesis or a suture retaining the prosthesis to thereby retain the prosthesis.

8. A prosthesis deployment device as in claim 7 wherein the device includes a region in which the prosthesis is retained and the duct extends along at least part of the region.

9. A prosthesis deployment device as in claim 7 wherein the duct is coaxial with and surrounding the guide wire catheter.

10. A prosthesis deployment device as in claim 7 wherein the duct has three lumens for trigger wires.

11. A prosthesis deployment device as in claim 7 wherein the duct is formed by a concentric tube around the guide wire catheter and crimped thereto.

12. A prosthesis deployment device as in claim 7 wherein the duct is formed by a V shape cross section component retained to the guide wire catheter.

13. A prosthesis deployment device having a deployment catheter extending to a proximal end with an elongate region of the catheter in which a prosthesis is retained and a trigger wire and trigger wire release mechanism adapted to retain the proximal end of the prosthesis distally of the proximal end, the trigger wire release mechanism comprising a trigger wire guide along at least part of the length of the region, the duct having at least one lumen for a trigger wire and an aperture in the duct adjacent the proximal end to enable the trigger wire to exit the duct.

14. A prosthesis deployment device as in claim 13 wherein the trigger wire guide has three lumens for trigger wires.

15. A prosthesis deployment device as in claim 13 wherein region includes a guide wire catheter and the trigger wire guide is coaxial with and surrounding the guide wire catheter.

16. A prosthesis deployment device as in claim 15 wherein the trigger wire guide is formed by a concentric tube around the guide wire catheter and crimped thereto.