Method and system for delivering an implant utilizing a lumen reducing member

• US 7,309,345 B2
• Filed: 07/25/2003
• Issued: 12/18/2007
• Est. Priority Date: 07/25/2003
• Status: Expired due to Fees

• Current Assignee: Stryker European Operations Holdings, LLC (Stryker Corporation)
• Original Assignee: Boston Scientific Scimed, Inc. (Boston Scientific Corporation)
• Inventors: Wallace, Michael P.
• Primary Examiner(s): Johnson, III, Henry M
• Application Number:
  US10/627,024
• Publication Number:
  US 20050021072A1
• Time in Patent Office: 1,607 Days
• Field of Search: 128/898, 606190-198, 623 1- 12
• US Class Current: 606/191
• CPC Class Codes: A61B 17/12022 Occluding by internal devices, e.g. balloons or releasable wires plugging an opening in the wall of an organ A61B17/0057; occluders for the cervical canal A61F6/146; vas deferens occluders A61F6/20
• CPC Class Codes: A61B 17/12109 in a blood vessel
• CPC Class Codes: A61B 17/12113 within an aneurysm
• CPC Class Codes: A61B 17/12145 having a pre-set deployed three-dimensional shape methods of manufacturing A61B2017/00526
• CPC Class Codes: A61B 2017/12063 electrolytically detachable
• 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

Abstract

A method and system for inserting an implant, such as vaso-occlusive device, an embolic containment device, or a stent into a vascular space to a vascular site in a body utilizing a lumen-reducing catheter. The method and system can be used to treat aneurysm, tumors and other vascular malformations. A guide is inserted into the vascular space. First and second catheters are inserted into the vascular space along the guide. The first or delivery catheter defines a first cavity, and the second or lumen-reducing catheter defines a second, smaller cavity. The second catheter is inserted within the first catheter. In one embodiment, an implant is advanced together with the first and second catheters to a vascular site. In an alternative embodiment, after the first and second catheters are positioned, the guide and the second catheter are removed from the first cavity, and an implant is inserted through the first cavity. With these configurations, radial movement of the guide is restricted to the smaller, second cavity rather than the larger, first cavity.

Claims

1. A method of delivering a first implant and a second implant through a vascular space to a vascular site in a body, comprising:

providing a guide, a first member having a distal end and a proximal end and defining a first cavity, and a second member having a distal end and a proximal end and defining a second cavity, the second member being insertable within the first cavity;

advancing the distal ends of the first and second members along the guide and through the vascular space to the vascular site;

removing the second member and the guide from the first cavity; and

delivering the first and second implants through the first cavity and to the vascular site,

before inserting the first implant, further comprising re-inserting the guide through the first cavity, the first implant being delivered along the guide and through the vascular space to the vascular site.

2. The method of claim 1, the second catheter reducing radial movement of the first catheter relative to the guide.

3. The method of claim 1, the guide being confined to the second cavity when the first and second catheters are inserted through the vascular space.

4. The method of claim 1, further comprising removing the first member from the vascular space.

5. The method of claim 1, advancing the distal ends of the first and second members further comprising advancing generally aligned distal ends of the first and second members along the guide and through the vascular space to the vascular site.

6. The method of claim 1, wherein the first member is a catheter defining the first cavity.

7. The method of claim 1, wherein the second member is a catheter defining the second cavity.

8. The method of claim 1, delivering the first implant further comprising delivering a vaso-occlusive implant.

9. A method of delivering a first implant and a second implant through a vascular space to a vascular site in a body, comprising:

providing a guide, a first member having a distal end and a proximal end and defining a first cavity, and a second member having a distal end and a proximal end and defining a second cavity, the second member being insertable within the first cavity;

providing a first implant and a second implant, each implant being configured for advancement through the vascular space using either of the first and second members;

advancing the distal ends of the first and second members along the guide and through the vascular space to the vascular site, thereby delivering the first implant and the second implant to the vascular site, the first implant being advanced by the distal end of the first member.

10. The method of claim 9, the first implant being advanced by the distal ends of the first and second members.

11. The method of claim 9, further comprising removing the first member, the second member and the guide from the vascular space.

12. The method of claim 9, further comprising containing the second implant within a neck of the vascular site using the first implant.

13. The method of claim 9, advancing the second implant further comprising advancing a vaso-occlusive implant into the vascular site.

14. The method of claim 9, the vascular site comprising an aneurysm, the first implant being placed within a neck of the aneurysm.

15. The method of claim 9, the second member reducing radial movement of the first member relative to the guide.

16. The method of claim 9, the guide being confined to the second cavity when the first and second members are inserted through the vascular space.

17. The method of claim 9, advancing the distal ends of the first and second members further comprising advancing generally aligned distal ends of the first and second members along the guide and through the vascular space to the vascular site.

18. The method of claim 9, wherein the first member is a catheter defining the first cavity.

19. The method of claim 9, wherein the second member is a catheter defining the second cavity.

20. A method of delivering an implant through a vascular space to a vascular site in a body, comprising:

providing a guide wire, a first member having a distal end and a proximal end and defining a first cavity, and a second member having a distal end and a proximal end and defining a second cavity, the second member being insertable within the first cavity;

advancing the distal ends of the first and second members along the guide and through the vascular space to the vascular site;

removing the second member and the guide from the first cavity;

re-inserting the guide through the first cavity; and

delivering the implant along the guide and through the first cavity and the vascular space to the vascular site.

21. A method of delivering an implant through a vascular space to a vascular site in a body, comprising:

providing a guide, a first member having a distal end and a proximal end and defining a first cavity, and a second member having a distal end and a proximal end and defining a second cavity, the second member being insertable within the first cavity; and

advancing the distal ends of the first and second members along the guide and through the vascular space to the vascular site, thereby delivering the implant to the vascular site, the implant being advanced by the distal end of the first member.