Expandable implant system

• US 9,492,259 B2
• Filed: 03/30/2012
• Issued: 11/15/2016
• Est. Priority Date: 03/30/2011
• Status: Active Grant

• Current Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Original Assignee: ASTORA Women's Health, LLC (Endo International PLC)
• Inventors: Knipfer, Michael A.
• Primary Examiner(s): Natnithithadha, Navin
• Assistant Examiner(s): Reddy, Sunita
• Application Number:
  US13/435,057
• Publication Number:
  US 20130079586A1
• Time in Patent Office: 1,691 Days
• Field of Search: 600/29, 600/30, 600/37, 128897-899
• US Class Current: 1/1
• CPC Class Codes: A61B 17/3468 for implanting or removing devices, e.g. prostheses, implants, seeds, wires devices for implanting seeds A61M37/0069
• CPC Class Codes: A61B 2017/00805 Treatment of female stress urinary incontinence
• CPC Class Codes: A61B 2017/0412 having anchoring barbs or pins extending outwardly from suture anchor body
• CPC Class Codes: A61B 2017/0437 the barbs being resilient or spring-like
• CPC Class Codes: A61F 2/0009 placed in or outside the body opening close to the surface of the body plugging an opening in the wall of a hollow or tubular organ A61B17/0057
• CPC Class Codes: A61F 2/0045 Support slings
• CPC Class Codes: A61F 2002/0068 having a special mesh pattern
• CPC Class Codes: A61F 2002/0072 Delivery tools therefor
• CPC Class Codes: A61F 2210/0004 bioabsorbable
• CPC Class Codes: A61F 2210/0014 using shape memory or superelastic materials, e.g. nitinol
• CPC Class Codes: A61F 2220/0016 with sharp anchoring protrusions, e.g. barbs, pins, spikes
• CPC Class Codes: A61F 2250/0018 differing in elasticity, stiffness or compressibility
• CPC Class Codes: A61F 2250/0031 made from both resorbable and non-resorbable prosthetic parts, e.g. adjacent parts

Abstract

Various embodiments of a sling implant system are provided. Embodiments of the implants can include one or more collapsibility and expandability features or portions adapted to improve introduction and deployment of the implant within the patient. The implants can be folded, collapsed or otherwise reduced in size or construct to fit within a delivery tool or catheter for later expandability upon deployment of the implant.

Claims

1. An implant to treat incontinence, comprising:

a support portion positionable proximate a urethra and constructed of a plurality of mesh filaments;

at least two mesh expansion members, each including a nitinol coil and constructed of a plurality of mesh filaments to define a generally tubular shape, and wherein the at least two mesh expansion members are selectively expandable and collapsible, the at least two mesh expansion members being operatively coupled to the support portion and defining a bulking area positionable near the urethra to operatively engage a portion of the urethra;

at least two end portions coupled to the support portion, each extending generally away from a respective expansion member, and each end portion having a free end positionable proximate anchoring tissue; and

at least one anchor coupled to the free end of the end portions to anchor the implant into the anchoring tissue.

2. The implant of claim 1 wherein at least one of the expansion members is adjustable between a collapsed state and an expanded state.

3. The implant of claim 1 wherein a segment of the support portion has a width less than a width of the end portions.

4. The implant of claim 3 wherein the segment of the support portion having a width less than a width of the end portions is disposed between the expansion members.

5. The implant of claim 3 wherein the segment is constructed of a flexible material.

6. The implant of claim 1 wherein the support portion is composed of an absorbable or nonabsorbable material.

7. The implant of claim 1 wherein the implant comprises holes that are sized and shaped to encourage tissue ingrowth.

8. The implant of claim 1 where in the support portion is foldable during implantation.

9. The implant of claim 1, wherein the support portion comprises a porous woven mesh material.

10. The implant of claim 1 made from a material selected from the group consisting of polypropylene, polyurethanes, acetal materials, polytetrafluorethylene materials, silicones, or other curable materials.

11. The implant of claim 1 further comprising a suture weaved through the implant.

12. A method of treating incontinence in a patient, the method comprising the steps of:

creating an incision through the vagina;

providing an elongate insertion tool;

providing an implantable sling having a support portion constructed of a plurality of mesh filaments, at least two end portions, and a mesh expanding member having a nitinol coil and constructed of a plurality of mesh filaments to define a generally tubular shape that is selectively collapsible and expandable provide;

passing a portion of the sling to an anchoring tissue;

removing the insertion tool via the vaginal incision, leaving the sling in place; and

repeating the procedure on the patient'"'"'s other side.

13. The method of claim 12 wherein the sling is provided in a collapsed state and expands to an expanded state.

14. The method of claim 12 further comprising the step of providing a suture coupled to an anchor whereby the sling is threaded along the suture to the anchoring tissue.