Braid-ball embolic devices

• US 8,142,456 B2
• Filed: 04/21/2009
• Issued: 03/27/2012
• Est. Priority Date: 04/21/2008
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Nfocus Neuromedical, Inc. (Medtronic Plc)
• Inventors: Rosqueta, Arturo S., Aboytes, Maria G.
• Primary Examiner(s): TRUONG, KEVIN THAO
• Application Number:
  US12/427,620
• Publication Number:
  US 20090287294A1
• Time in Patent Office: 1,071 Days
• Field of Search: 606/113, 606/114, 606/127, 606/151, 606/153, 606/157, 606/159, 606/191, 606/200
• US Class Current: 606/157
• 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 17/12031 complete occlusion
• CPC Class Codes: A61B 17/12109 in a blood vessel
• CPC Class Codes: A61B 17/12113 within an aneurysm
• CPC Class Codes: A61B 17/12118 for positioning in conjunction with a stent
• CPC Class Codes: A61B 17/1215 comprising additional materials, e.g. thrombogenic, having filaments, having fibers, being coated
• CPC Class Codes: A61B 17/12159 Solid plugs; being solid before insertion
• CPC Class Codes: A61B 17/12172 having a pre-set deployed three-dimensional shape methods of manufacturing A61B2017/00526
• CPC Class Codes: A61B 2017/00526 Methods of manufacturing
• CPC Class Codes: A61B 2017/00862 elastic or resilient
• CPC Class Codes: A61B 2017/00867 shape memory effect
• CPC Class Codes: A61B 2017/1205 Introduction devices
• CPC Class Codes: A61B 2017/12054 Details concerning the detachment of the occluding device from the introduction device
• CPC Class Codes: A61B 2017/12068 detachable by heat
• CPC Class Codes: A61B 2018/00416 Treatment of aneurisms
• CPC Class Codes: A61B 2090/3966 Radiopaque markers visible in an X-ray image
• CPC Class Codes: A61M 29/02 Dilators made of swellable material balloon catheters for angioplasty A61M25/104
• CPC Class Codes: Y10T 156/1051 by folding

Abstract

Embolic implants, delivery systems and methods of manufacture and delivery are disclosed. The devices can be used for aneurysm treatment and/or parent vessel occlusion. Implant designs offer low profile compressibility for delivery to neurovasculature, while maintaining other necessary features such as density for occlusion purposes and desirable radial strength characteristics.

Claims

1. An aneurysm embolization device comprising:

a braid body having a first end and a second end, wherein a first band is attached to the first end and a second band is attached to the second end, the first and second bands securing the braid,

the body adapted to be compressed for delivery through a catheter and adapted to open, upon deployment, to substantially fill an aneurysm having a dome and a neck, such that the body has only a single layer of braid adjacent to the aneurysm dome and a plurality of layers of braid adjacent to the aneurysm neck, and such that no part of the body extends over the aneurysm neck outside of the dome.