Methods For Making Braid-Ball Occlusion Devices

• US 20110265943A1
• Filed: 03/15/2011
• Published: 11/03/2011
• Est. Priority Date: 04/21/2008
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: Rosqueta, Arturo S., Becking, Frank P.
• Granted Patent: US 8,747,597 B2
• Time in Patent Office: Days
• US Class Current: 156/227
• 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 for sutures A61B2017/0618
• CPC Class Codes: A61B 2017/00867 shape memory effect for prostheses A61F2210/0014
• 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. A method of making an embolic device, the method comprising:

inverting a section of tubular braid to produce a folded section around the braid and bring ends of the section towards one another;

holding closed each of the folded section and a second section away from the ends to position the braid around a form;

setting a device body shape; and

removing the form from the braid.

2. The method of claim 1, wherein the form is removed through the second section.

3. The method of claim 1, wherein the folded section is set into a compressed profile prior to setting the device body shape.

4. The method of claim 1, wherein the folded section is set into a compressed profile while setting the device body shape.

5. The method of claim 1, further comprising advancing a band past the braid ends to a hub location.

6. The method of claim 5, further comprising trimming-off a length of the braid including the braid ends adjacent the hub.

7. The method of claim 5, further comprising wicking adhesive through the braid under to the band to secure the band and braid together.

8. The method of claim 7, wherein a non-stick mandrel defines an inner lumen within the braid when wicking the adhesive.

9. The method of claim 5, further comprising wicking adhesive away from the braid outside the hub along the braid forming the embolic device.