Retrieval wire centering device

• US 10,463,377 B2
• Filed: 07/12/2017
• Issued: 11/05/2019
• Est. Priority Date: 01/16/2014
• Status: Active Grant

• Current Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Original Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Inventors: Clark, Christopher J., McPhail, Mark, Tischler, Brian J., Peiffer, Dennis A., Doran, Burns P.
• Primary Examiner(s): Nguyen, Vi X
• Application Number:
  US15/647,523
• Publication Number:
  US 20170303932A1
• Time in Patent Office: 846 Days
• CPC Class Codes: A61B 17/0057 Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect sutures A61B17/04; closing rectum or urethra near body surface A61F2/0009
• CPC Class Codes: A61B 17/12122 within the heart for closing a cardiac septal defect A61B17/0057
• CPC Class Codes: A61B 17/12172 having a pre-set deployed three-dimensional shape methods of manufacturing A61B2017/00526
• CPC Class Codes: A61B 2017/00575 for closure at remote site, e.g. closing atrial septum defects
• CPC Class Codes: A61B 2017/00579 Barbed implements
• CPC Class Codes: A61B 2017/00592 Elastic or resilient implements
• CPC Class Codes: A61B 2017/00597 Implements comprising a membrane
• CPC Class Codes: A61B 2017/00623 Introducing or retrieving devices therefor
• CPC Class Codes: A61B 2017/1205 Introduction devices
• CPC Class Codes: A61B 2017/12095 Threaded connection

Abstract

An occlusive implant system may include a catheter having a lumen extending therethrough, a core wire slidably and rotatably disposed within the lumen, the core wire having a threaded member disposed at a distal end, and a medical implant having an expandable frame, an occlusive element disposed on the frame, and a threaded insert coupled to a proximal portion of the frame, wherein the threaded member is removably coupled to the threaded insert.

Claims

1. An occlusive implant system, comprising:

a catheter having a lumen extending therethrough;

a core wire slidably and rotatably disposed within the lumen, the core wire having a threaded member disposed at a distal end thereof; and

a medical implant having an expandable frame, an occlusive element disposed on the expandable frame, and a threaded insert coupled to a proximal portion of the expandable frame;

wherein the threaded member is removably coupled to the threaded insert.

2. The occlusive implant system of claim 1, wherein a portion of the occlusive element is disposed between the threaded insert and the proximal portion of the expandable frame.

3. The occlusive implant system of claim 1, wherein a portion of the occlusive element extends proximally of the threaded insert.

4. The occlusive implant system of claim 1, wherein the core wire includes a guide element disposed adjacent a proximal end of the threaded member, the guide element being configured to center the core wire within the catheter.

5. The occlusive implant system of claim 4, wherein the guide element includes a convex proximal surface and a generally flat distal surface.

6. The occlusive implant system of claim 4, wherein the guide element includes a conical proximal surface and a generally flat distal surface.

7. The occlusive implant system of claim 4, wherein the guide element includes a generally rounded convex outer surface.

8. The occlusive implant system of claim 4, wherein the guide element is disposed about the core wire.

9. The occlusive implant system of claim 8, wherein the guide element is slidably disposed about the core wire.

10. The occlusive implant system of claim 9, wherein the guide element is positioned against the threaded member and axially retained in place by a polymeric jacket.

11. The occlusive implant system of claim 8, wherein the guide element is fixedly attached to the core wire.