VASO-OCCLUSIVE DEVICE DELIVERY SYSTEM

• US 20120209310A1
• Filed: 02/08/2012
• Published: 08/16/2012
• Est. Priority Date: 02/10/2011
• Status: Abandoned Application

• Current Assignee: Stryker European Operations Holdings, LLC (Stryker Corporation)
• Original Assignee: Stryker Corporation, Stryker Nv Operations Limited (Stryker Corporation)
• Inventors: Murphy, Richard, CHEN, Hancun
• Application Number:
  US13/369,039
• Publication Number:
  US 20120209310A1
• Time in Patent Office: Days
• US Class Current: 606/195
• 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 17/1214 Coils or wires
• CPC Class Codes: A61B 17/12145 having a pre-set deployed three-dimensional shape methods of manufacturing A61B2017/00526
• CPC Class Codes: A61B 17/1215 comprising additional materials, e.g. thrombogenic, having filaments, having fibers, being coated
• CPC Class Codes: A61B 17/12154 having stretch limiting means
• CPC Class Codes: A61B 2017/12063 electrolytically detachable

Abstract

A vaso-occlusive device delivery system includes a delivery wire assembly having a core wire disposed in a delivery wire lumen, and a vaso-occlusive device having a tapered proximal end and defining a vaso-occlusive device lumen, wherein a tether is disposed in the lumen and secured to the core wire. A link may be attached to each of the core wire, the proximal end of the vaso-occlusive device, and the tether. Alternatively, the system may include a transition member attached to the vaso-occlusive device and secured to the core wire.

Claims

1. A vaso-occlusive device delivery system, comprising:

a delivery wire assembly having a core wire disposed in a delivery wire lumen; and

a vaso-occlusive device having a tapered proximal end and defining a vaso-occlusive device lumen, the vaso-occlusive device further comprising a tether disposed in the lumen, wherein the tether is secured to the core wire.

2. The vaso-occlusive device delivery system of claim 1, further comprising a link respectively attached to the core wire, the proximal end of the vaso-occlusive device, and the tether.

3. The vaso-occlusive device delivery system of claim 2, wherein the vaso-occlusive device is screwed onto the link.

4. The vaso-occlusive device delivery system of claim 1, further comprising a clip respectively attached to the core wire and the tether.

5. The vaso-occlusive device delivery system of claim 4, wherein the clip is laminated to the core wire.

6. The vaso-occlusive device delivery system of claim 5, wherein a distal end of the clip forms a loop to which the tether is attached.

7. The vaso-occlusive device delivery system of claim 4, wherein a distal end of the core wire forms a loop to which the tether is attached.

8. The vaso-occlusive device delivery system of claim 4, wherein the distal end of the core wire is flattened and restrains the tether on the core wire.

9. A vaso-occlusive device delivery system, comprising:

a delivery wire including a core wire;

a link attached to a distal end portion of the core wire;

a transition coil attached to the link and having a transition coil outer diameter; and

a vaso-occlusive device attached to the transition coil and having a vaso-occlusive device outer diameter larger than the transition coil outer diameter.

10. The vaso-occlusive device delivery system of claim 9, wherein the transition coil is attached to an interior surface of the vaso-occlusive device.

11. The vaso-occlusive device delivery system of claim 9, wherein the transition coil is attached to a proximal end surface of the vaso-occlusive device.

12. A vaso-occlusive device delivery system, comprising:

a delivery wire assembly having a core wire disposed in a delivery wire lumen;

a transition member attached to a distal end portion of the core wire and having a transition member outer diameter; and

a vaso-occlusive device defining a lumen having a tether disposed therein and secured to the core wire, the vaso-occlusive device having an outer diameter larger than an outer diameter of the transition member.

13. The vaso-occlusive device delivery system of claim 12, wherein the transition member is attached to an interior surface of the vaso-occlusive device.

14. The vaso-occlusive device delivery system of claim 12, wherein the transition member is attached to a proximal end surface of the vaso-occlusive device.

15. The vaso-occlusive device delivery system of claim 12, further comprising a clip respectively attached to the core wire and the tether.

16. The vaso-occlusive device delivery system of claim 15, wherein the core wire is laminated to the clip.

17. The vaso-occlusive device delivery system of claim 12, wherein a distal end of the transition member forms a loop to which the tether is attached.

18. The vaso-occlusive device delivery system of claim 12, wherein the transition member comprises an open pitch coil.

19. The vaso-occlusive device delivery system of claim 12, wherein the transition member comprises a coil having an open pitch proximal portion and a closed pitch distal portion.

20. The vaso-occlusive device delivery system of claim 12, wherein the transition member comprises a tube having a continuous proximal portion and a slotted distal portion.