Wire frame partial flow obstruction device for aneurysm treatment

• US 6,592,605 B2
• Filed: 01/31/2001
• Issued: 07/15/2003
• Est. Priority Date: 05/05/1997
• Status: Expired due to Fees

• Current Assignee: Board of Regents of the University of Texas System (University of Texas System)
• Original Assignee: Board of Regents of the University of Texas System (University of Texas System)
• Inventors: Crockett, K. David, Lenker, Jay
• Primary Examiner(s): REIP, DAVID OWEN
• Application Number:
  US09/775,306
• Publication Number:
  US 20010007946A1
• Time in Patent Office: 895 Days
• Field of Search: 606/191, 606/195, 606/198, 606/200, 623/1.15, 623/1.16, 623/1.35, 623/1.36
• US Class Current: 606/200
• 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 17/12118 for positioning in conjunction with a stent
• 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 2017/00867 shape memory effect for prostheses A61F2210/0014
• CPC Class Codes: A61F 2/88 the wire-like elements formed as helical or spiral coils forming a net-like or mesh-like structure A61F2/90
• CPC Class Codes: A61F 2002/825 having longitudinal struts

Abstract

A wire frame stent or occluding device for use within the vasculature. The device can be stretched into a double wire or single wire configuration for easy deployment into the vasculature.

Claims

1. A device for obstructing blood flow into an aneurysm affecting a blood vessel having an inner wall, said device comprising:

a flow occluding device having an insertion configuration and a deployed configuration;

wherein the insertion configuration comprises a substantially straight single length of wire; and

wherein the deployed configuration comprises two hoops adapted to substantially circumscribe the inner wall of the blood vessel and a flow disrupting structure connected between the two hoops.

2. The device of claim 1 wherein the flow disrupting structure comprises a flat coil of wire which is adapted to not protrude into the aneurysm.

3. The device of claim 1 wherein the flow disrupting structure comprises a coil tower of wire which is adapted to protrude into the aneurysm.

4. The device of claim 1 wherein the flow disrupting structure comprises curves which are adapted to substantially conform to the inner wall of the blood vessel.

5. A device for obstructing blood flow into an aneurysm affecting a blood vessel having an inner wall, said device comprising:

a flow occluding device having an insertion configuration and a deployed configuration;

wherein the insertion configuration comprises a substantially straight length of doubled wire bent and its midpoint; and

wherein the deployed configuration comprises two hoops adapted to contact the inner wall of the blood vessel and a flow disrupting structure attached to the two hoops.

6. The device of claim 5 wherein the flow disrupting structure comprises a flat coil of wire which is adapted to not protrude into the aneurysm.

7. The device of claim 5 wherein the flow disrupting structure comprises a coil tower of wire which is adapted to protrude into the aneurysm.

8. The device of claim 5 wherein the flow disrupting structure comprises curves which are adapted to substantially conform to the inner wall of the blood vessel.

9. A system for inserting and deploying a device for obstructing blood flow into an aneurysm affecting a blood vessel having an inner wall, said system comprising:

a flow occluding device having an insertion configuration and a deployed configuration and an insertion device;

the flow occluding device having an insertion configuration and a deployed configuration, wherein the insertion configuration comprises a substantially straight length of wire and the deployed configuration comprises two hoops adapted to substantially circumscribe the inner wall of the blood vessel and a flow disrupting structure connected between the two hoops; and

the insertion device comprising a catheter having a lumen at its distal end, the catheter being sized and dimensioned to allow insertion of the catheter into the body to the site of the aneurysm, said lumen having an internal diameter sufficient to house the flow disrupting device in the insertion configuration.

10. The system of claim 9 wherein the flow disrupting structure comprises a flat coil of wire which is adapted to not protrude into the aneurysm.

11. The system of claim 9 wherein the flow disrupting structure comprises a coil tower of wire which is adapted to protrude into the aneurysm.

12. The system of claim 9 wherein the flow disrupting structure comprises curves which are adapted to substantially conform to the inner wall of the blood vessel.