Vascular occlusion

• US 10,398,441 B2
• Filed: 12/18/2014
• Issued: 09/03/2019
• Est. Priority Date: 12/20/2013
• Status: Active Grant

• Current Assignee: Terumo Corporation
• Original Assignee: Terumo Corporation
• Inventors: Warner, Sheila, Macias, Jacqueline, Liang, Jessica, Graczyk, Wendy
• Primary Examiner(s): Dornbusch, Dianne
• Application Number:
  US14/575,308
• Publication Number:
  US 20150173770A1
• Time in Patent Office: 1,720 Days
• CPC Class Codes: A61B 17/12036 partial occlusion
• CPC Class Codes: A61B 17/12113 within an aneurysm
• CPC Class Codes: A61B 17/12122 within the heart for closing a cardiac septal defect A61B17/0057
• CPC Class Codes: A61B 17/12136 Balloons
• CPC Class Codes: A61B 17/1214 Coils or wires
• CPC Class Codes: A61B 17/1215 comprising additional materials, e.g. thrombogenic, having filaments, having fibers, being coated
• CPC Class Codes: A61B 17/12172 having a pre-set deployed three-dimensional shape methods of manufacturing A61B2017/00526
• CPC Class Codes: A61B 17/12177 comprising additional materials, e.g. thrombogenic, having filaments, having fibers or being coated
• CPC Class Codes: A61B 2017/00893 pharmaceutically effective
• CPC Class Codes: A61B 2017/12054 Details concerning the detachment of the occluding device from the introduction device
• CPC Class Codes: A61B 2090/3966 Radiopaque markers visible in an X-ray image
• CPC Class Codes: A61F 2/0105 Open ended, i.e. legs gathered only at one side

Abstract

An occlusive system for the vasculature and an embolic coil used in such an occlusive system is described. Also described is an occlusive plug which can be used for occlusive purposes within the vasculature.

Claims

1. A vascular disorder treatment system comprising:

a delivery tube;

a containment device associated with a distal portion of said delivery tube;

a pusher distally movable through a lumen of the delivery tube to move said containment device out a distal end of the delivery tube; and

a stopper ring affixed to an inner surface of the lumen of the delivery tube spaced apart from the distal end of the delivery tube, the stopper ring preventing distal advancement of the pusher beyond said stopper ring.

2. The system according to claim 1, wherein said containment device is a containment bag.

3. The system according to claim 2, wherein said containment bag receives and holds an embolic agent.

4. The system according to claim 3, wherein said embolic agent includes at least one of a liquid embolic and an embolic coil.

5. The system according to claim 1, wherein the pusher engages a proximal stem of the containment device with a plunger.

6. The system according to claim 1, wherein the containment device is positioned near the distal portion of the delivery tube prior to deployment of the delivery tube.

7. The system according to claim 1, wherein the containment device comprises a plurality of struts surrounding an inner mesh layer.

8. The system according to claim 1, wherein said containment device comprises a mesh structure.

9. The system according to claim 1, wherein said containment device is sized to seat at an entrance of a vascular disorder which may include:

aneurysm, atrial septal defect, left atrial appendage, and patent foramen ovale.

10. An apparatus for occluding a vascular site comprising:

a catheter;

a pusher having a plunger attached to a distal end of the pusher;

an occlusion protective device positioned within a lumen of the catheter near a distal end of said catheter, said occlusion protective device having a non-deployed state and a deployed state; and

a stopper ring affixed to an inner surface of the lumen of the catheter spaced apart from the distal end of the catheter, the stopper ring preventing distal advancement of the plunger beyond said stopper ring.

11. The apparatus according to claim 10, wherein said occlusion protective device is a containment bag.

12. The apparatus according to claim 10, wherein the occlusion protective device receives and holds an embolic agent.

13. The apparatus according to claim 12, wherein said embolic agent includes at least one of a liquid embolic and an embolic coil.

14. The apparatus according to claim 10, wherein the occlusion protective device comprises a stem against which the plunger engages.

15. The apparatus according to claim 10, wherein said occlusion protective device comprises a plurality of struts surrounding an inner mesh layer.

16. The apparatus according to claim 10, wherein said occlusion protective device has a mesh structure.

17. The apparatus according to claim 10, wherein said occlusion protective device is sized to seat at an entrance of a vascular disorder which may include:

aneurysm, atrial septal defect, left atrial appendage, and patent foramen ovale.