Occlusion devices and methods

• US 8,613,282 B2
• Filed: 05/07/2012
• Issued: 12/24/2013
• Est. Priority Date: 09/24/1997
• Status: Expired due to Fees

• Current Assignee: Bayer Healthcare LLC (Bayer AG)
• Original Assignee: Conceptus Incorporated (Bayer AG)
• Inventors: Nikolchev, Julian N., Ton, Dai T., Khera, Ashish, Gurskis, Donnell W., Bacich, Steven
• Primary Examiner(s): Brown, Michael A.
• Application Number:
  US13/465,723
• Publication Number:
  US 20120216817A1
• Time in Patent Office: 596 Days
• Field of Search: 128830-841, 606/191, 606/198, 606/206
• US Class Current: 128/830
• 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 17/12099 characterised by the location of the occluder
• 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 18/082 Probes or electrodes therefor
• CPC Class Codes: A61B 2017/00867 shape memory effect for prostheses A61F2210/0014
• CPC Class Codes: A61B 2017/12059 Joint of soluble material
• CPC Class Codes: A61B 2017/12063 electrolytically detachable
• CPC Class Codes: A61B 2017/12077 Joint changing shape upon application of heat, e.g. bi-metal or reversible thermal memory
• CPC Class Codes: A61B 2017/12095 Threaded connection
• CPC Class Codes: A61B 2018/046 in liquid form
• CPC Class Codes: A61B 2090/376 using X-rays, e.g. fluoroscopy
• CPC Class Codes: A61B 2090/378 using ultrasound
• CPC Class Codes: A61B 34/20 Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
• CPC Class Codes: A61F 2/0077 Special surfaces of prostheses, e.g. for improving ingrowth A61F2/30767 takes precedence
• CPC Class Codes: A61F 6/18 Inserters or removers ; Apparatus for loading an intra-uterine device into an insertion tube
• CPC Class Codes: A61F 6/22 implantable in tubes occluding by internal devices A61B17/12022
• CPC Class Codes: A61F 6/225 transcervical
• CPC Class Codes: Y10T 29/49826 Assembling or joining

Abstract

The invention provides intrafallopian devices and non-surgical methods for their placement to prevent conception. The efficacy of the device is enhanced by forming the structure at least in part from copper or copper alloy. The device is anchored within the fallopian tube by a lumen-traversing region of the resilient structure which has helical outer surface, together with a portion of the resilient structure which is biased to form a bent secondary shape, the secondary shape having a larger cross-section than the fallopian tube. The resilient structure is restrained in a straight configuration and transcervically inserted within the fallopian tube, where it is released. Optionally, permanent sterilization is effected by passing a current through there resilisent structure to the tubal walls.

Claims

1. An occlusion system comprising:

a delivery catheter; and

an occlusion device contained within the delivery catheter, the occlusion device comprising;

a primary coil having a proximal end and a distal end;

a secondary coil surrounding a portion of the primary coil and affixed to the primary coil at a distal joint and a proximal joint, wherein the secondary coil is restrained in a small profile configuration within the delivery catheter; and

a fibrous element disposed within the secondary coil;

wherein the secondary coil is biased to expand to a large profile configuration when at rest, and the primary coil is substantially straight between the proximal end and the distal end when at rest.

2. The occlusion system of claim 1, wherein the primary coil surrounds a distal delivery wire when at rest.

3. The occlusion system of claim 2, wherein the distal delivery wire is tapered toward a distal end thereof.

4. The occlusion system of claim 2, wherein the secondary coil surrounds the distal delivery wire when at rest.

5. The occlusion system of claim 1, wherein the distal and proximal joints are solder bonds.

6. The occlusion system of claim 1, wherein the fibrous element is disposed between the primary coil and the secondary coil.

7. The occlusion system of claim 6, wherein the fibrous element comprises polyester.

8. The occlusion system of claim 1, wherein the secondary coil is biased to form a helix when at rest.

9. The occlusion system of claim 1, further comprising an annular bead on the primary coil distal to the secondary coil.

10. The occlusion system of claim 9, wherein the annular bead comprises a biodegradable material.

11. An occlusion system comprising:

a delivery catheter; and

an occlusion device contained within the delivery catheter, the occlusion device comprising;

a primary coil having a proximal end and a distal end;

a secondary coil surrounding a portion of the primary coil and affixed to the primary coil at a distal joint, wherein the secondary coil is restrained in a small profile configuration within the delivery catheter; and

a fibrous element disposed within the secondary coil;

wherein the secondary coil is biased to expand to a large profile configuration when at rest and a proximal end of the secondary coil is not affixed to the primary coil when at rest, and the primary coil is substantially straight between the proximal end and the distal end when at rest.

12. The occlusion system of claim 11, wherein the primary coil surrounds a distal delivery wire when at rest.

13. The occlusion system of claim 12, wherein the distal delivery wire is tapered toward a distal end thereof.

14. The occlusion system of claim 12, wherein the secondary coil surrounds the distal delivery wire when at rest.

15. The occlusion system of claim 11, wherein the distal joint is a solder bond.

16. The occlusion system of claim 11, wherein the fibrous element is disposed between the primary coil and the secondary coil.

17. The occlusion system of claim 16, wherein the fibrous element comprises polyester.

18. The occlusion system of claim 11, wherein the secondary coil is biased to form a helix when at rest.

19. The occlusion system of claim 11, further comprising an annular bead on the primary coil distal to the secondary coil.

20. The occlusion system of claim 19, wherein the annular bead comprises a biodegradable material.