Retrieval wire centering device

Patent metadata

Field	Value
Publication number	US-10463377-B2
Application number	US-201715647523-A
Country	US
Kind code	B2
Filing date	Jul 12, 2017
Priority date	Jan 16, 2014
Publication date	Nov 5, 2019
Grant date	Nov 5, 2019

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.

First claim

What is claimed is:

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.

Assignees

• Boston Scient Scimed Inc

Inventors

• Clark Christopher J
• Mcphail Mark
• Tischler Brian J
• Peiffer Dennis A
• Doran Burns P

Classifications

• A61B17/12122 Primary

  within the heart (for closing a cardiac septal defect A61B17/0057) · CPC title

• A61B2017/00592

  Elastic or resilient implements · CPC title

• A61B2017/00575

  for closure at remote site, e.g. closing atrial septum defects · CPC title

• A61B2017/1205

  Introduction devices · CPC title

• A61B2017/00597

  Implements comprising a membrane · CPC title