Vascular remodeling device

• US 9,468,442 B2
• Filed: 01/28/2011
• Issued: 10/18/2016
• Est. Priority Date: 01/28/2010
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: Huynh, Andy, Molaei, Masoud, Schuman, Victoria, Shrivastava, Sanjay, Slee, Earl, Tran, Quang
• Primary Examiner(s): Shi, Katherine M
• Assistant Examiner(s): BACHMAN, LINDSEY MICHELE
• Application Number:
  US13/016,855
• Publication Number:
  US 20110184452A1
• Time in Patent Office: 2,090 Days
• Field of Search: 623/1.11, 606/191, 606/200
• US Class Current: 1/1
• CPC Class Codes: A61B 17/12118 for positioning in conjunction with a stent
• CPC Class Codes: A61B 17/1214 Coils or wires
• CPC Class Codes: A61B 17/12172 having a pre-set deployed three-dimensional shape methods of manufacturing A61B2017/00526
• CPC Class Codes: A61F 2/856 Single tubular stent with a side portal passage
• CPC Class Codes: A61F 2/86 Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
• CPC Class Codes: A61F 2002/823 Stents, different from stent-grafts, adapted to cover an aneurysm
• CPC Class Codes: A61F 2002/9528 for retrieval of stents
• CPC Class Codes: A61F 2002/9534 for repositioning of stents
• CPC Class Codes: A61F 2230/0063 Three-dimensional shapes
• CPC Class Codes: A61F 2230/0071 spherical

Abstract

An intraluminal apparatus including a catheter and device is positionable at a junction of afferent and efferent vessels of a bifurcation having an aneurysm. After positioning the device to substantially conform the device to the shape of the junction, the device acts as a scaffolding to inhibit herniation of objects out of the aneurysm and the device permits perfusion to the efferent vessels. Positioning the device may include deployment and optional release from a catheter. Embolic material may be inserted in the aneurysm before or after positioning the device. The device may have a proximal end, a distal end, and a plurality of filaments extending between and coupled at the proximal end and the distal end. The device may include a central filament configured to reshape the device. The distal end of the device may include a covering. The device may be football shaped, pumpkin shaped, or acorn shaped.

Claims

1. A method of treating an aneurysm at a junction of a bifurcation having an afferent vessel and efferent vessels, the aneurysm having a neck and a fundus, the method comprising:

advancing a catheter proximate to the junction of the bifurcation, the catheter at least partially containing a device in a compressed state, the device comprising a proximal end, a distal end, and a middle region between the proximal end and the distal end, the middle region consisting of a plurality of filaments extending from the proximal end to the distal end, the plurality of filaments being coupled at and only at both the proximal end and the distal end;

deploying the device from at least partially inside the catheter to outside the catheter with a distal portion of the device at the junction of the bifurcation abutting the neck and a proximal portion expanded against walls of the afferent vessel, the distal portion having a distal cross-sectional dimension greater than a proximal cross-sectional dimension of the proximal portion, wherein, during deployment, the device self-expands to conform in an expanded state to the junction of the bifurcation, and wherein, after deployment and while the proximal end of the device is connected to the catheter, the device acts as a scaffolding to inhibit herniation of objects out of the neck of the aneurysm and permits perfusion of fluid to the efferent vessels, wherein the distal portion of the device comprises a distal section, the plurality of filaments spiraling towards the distal end in the distal section; and

withdrawing the catheter.

2. The method of claim 1, further comprising inserting embolic material into the aneurysm.

3. The method of claim 1, wherein deploying the device comprises locking the device into place across ostia of the afferent and efferent vessels and the neck of the aneurysm.

4. The method of claim 1, wherein deploying the device further comprises:

retracting the device into the catheter; and

re-deploying the device in at least one of a second orientation and a second position, wherein, during re-deployment, the device self-expands to conform to the junction of the bifurcation.

5. The method of claim 1, further comprising retracting the device at least partially back inside the catheter.

6. The method of claim 1, further comprising releasing the device from the catheter.

7. The method of claim 1, further comprising withdrawing the device.

8. The method of claim 1, further comprising leaving the device.

9. The method of claim 1, wherein the plurality of filaments define a middle portion between the proximal portion and the distal portion, the middle portion having a cross-sectional dimension less than each of the proximal cross-sectional dimension and the distal cross-sectional dimension, wherein the deploying comprises positioning the middle portion between the afferent vessel and the efferent vessels.

10. The method of claim 1, wherein, after the deploying, the filaments of the plurality of filaments have segments in the proximal portion that are parallel to each other.

11. The method of claim 1, wherein the deploying comprises positioning the distal portion, having the distal cross-sectional dimension, outside the aneurysm.

12. A method of treating an aneurysm at a junction of a bifurcation having an afferent vessel and efferent vessels, the aneurysm having a neck and a fundus, the method comprising:

advancing a catheter proximate to the junction of the bifurcation, the catheter at least partially containing a device in a compressed state, wherein the device comprises a proximal end, a distal end, and a middle region between the proximal end and the distal end, the middle region consisting of (i) a plurality of filaments and (ii) a central filament, wherein the plurality of filaments and the central filament extend from the proximal end to the distal end, and are coupled at and only at both the proximal end and the distal end;

deploying the device from at least partially inside the catheter to outside the catheter with a distal portion of the device at the junction of the bifurcation abutting the neck and a proximal portion expanded against walls of the afferent vessel, wherein, during deployment, the device self-expands to conform to the junction of the bifurcation, the distal portion having a distal cross-sectional dimension greater than a proximal cross-sectional dimension of the proximal portion;

reshaping the deployed device by using the central filament to adjust a distance between a proximal end of the device and a distal end of the device and securing a portion of the central filament to the proximal end to lock the device in a reshaped state, wherein, after deployment, the device acts as a scaffolding to inhibit herniation of objects out of the neck of the aneurysm and permits perfusion of fluid to the efferent vessels, wherein the distal portion of the device comprises a distal section, the plurality of filaments spiraling towards the distal end in the distal section; and

withdrawing the catheter.

13. The method of claim 12, further comprising retracting the device at least partially back inside the catheter.

14. The method of claim 12, further comprising releasing the device from the catheter.

15. The method of claim 12, further comprising withdrawing the device.

16. The method of claim 12, further comprising leaving the device.

17. The method of claim 12, wherein the plurality of filaments define a middle portion between the proximal portion and the distal portion, the middle portion having a cross-sectional dimension less than each of the proximal cross-sectional dimension and the distal cross-sectional dimension, wherein the deploying comprises positioning the middle portion between the afferent vessel and the efferent vessels.

18. The method of claim 12, wherein, after the deploying, the filaments of the plurality of filaments have segments in the proximal portion that are parallel to each other.

19. The method of claim 12, wherein the deploying comprises positioning the distal portion, having the distal cross-sectional dimension, outside the aneurysm.