Combination three-dimensional surgical implant

• US 9,987,114 B2
• Filed: 03/24/2011
• Issued: 06/05/2018
• Est. Priority Date: 03/24/2010
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: Criscuolo, Christopher J., Arena, Anthony, Restrepo, Luis, Cohen, Matthew D., Hotter, Joseph
• Primary Examiner(s): Anderson, Gregory
• Assistant Examiner(s): Simpson, Sarah
• Application Number:
  US13/636,903
• Publication Number:
  US 20130138124A1
• Time in Patent Office: 2,630 Days
• CPC Class Codes: A61F 2/0063 Implantable repair or support meshes, e.g. hernia meshes
• CPC Class Codes: A61F 2002/0068 having a special mesh pattern
• CPC Class Codes: A61F 2210/0004 bioabsorbable
• CPC Class Codes: A61F 2220/0083 using hook and loop-type fasteners
• CPC Class Codes: A61F 2250/0031 made from both resorbable and non-resorbable prosthetic parts, e.g. adjacent parts
• CPC Class Codes: A61F 2250/0067 Means for introducing or releasing pharmaceutical products into the body

Abstract

The present disclosure provides a compound three-dimensional surgical implant and methods of forming and using the same. The compound three-dimensional surgical implant includes a grip-type knit mesh defining pores and including a plurality of spiked naps extending from a surface the grip-type knit mesh, a prosthetic knit mesh defining principal cells and peripheral cells being layered on the grip-type knit mesh such that at least a portion of the spiked naps grip at least a portion of the cells of the prosthetic knit mesh. The grip-type knit mesh and the prosthetic knit mesh are folded together into a predetermined three-dimensional structure such that at least a portion of the spiked naps grip at least a portion of the pores of the grip-type knit mesh to hold the three-dimensional structure of the surgical implant.

Claims

1. A compound three-dimensional surgical implant comprising:

a grip-type knit mesh defining pores and including a plurality of spiked naps extending from a surface the grip-type knit mesh;

a prosthetic knit mesh defining principal cells and peripheral cells being layered on the grip-type knit mesh such that at least a first portion of the spiked naps grip at least a portion of the prosthetic knit mesh, wherein the prosthetic knit mesh is smaller in surface area than the grip-type knit mesh;

the grip-type knit mesh and the prosthetic knit mesh being folded together into a predetermined three-dimensional structure such that at least a second portion of the spiked naps grip at least a portion of the pores of the grip-type knit mesh to hold the three-dimensional structure of the surgical implant.

2. The compound three-dimensional surgical implant of claim 1, wherein the grip-type knit mesh and the prosthetic knit mesh comprise materials selected from the group consisting of biodegradable, non-biodegradable, and combinations thereof.

3. The compound three-dimensional surgical implant of claim 1, wherein the material defining the pores of the grip-type knit mesh is non-biodegradable.

4. The compound three-dimensional surgical implant of claim 3, wherein the material defining the spiked naps of the grip-type knit mesh is biodegradable.

5. The compound three-dimensional surgical implant of claim 4, wherein the biodegradable material defining the spiked naps is selected from the group consisting of polylactic acid, polyglycolic acid, poly(lactide-co-(ϵ

-caprolactone)), poly(glycolide-co-α

-caprolactone)), poly(lactide-co-glycolide), and combinations thereof.

6. The compound three-dimensional surgical implant of claim 4, wherein the material defining the prosthetic knit mesh is non-biodegradable.

7. The compound three-dimensional surgical implant of claim 6, wherein the non-biodegradable material defining the pores is selected from the group consisting of polyethylenes, polypropylenes, ultra high molecular weight polyethylene, and combinations thereof.

8. The compound three-dimensional surgical implant of claim 3, wherein the non-biodegradable material defining the pores is selected from the group consisting of polyethylenes, polypropylenes, ultra high molecular weight polyethylene, and combinations thereof.

9. The compound three-dimensional surgical implant of claim 1, wherein the predetermined three-dimensional structure is conical.

10. The compound three-dimensional surgical implant of claim 1, further comprising a bioactive agent.

11. The compound three-dimensional surgical implant of claim 10, wherein the bioactive agent is selected from the group consisting of anesthetics, analgesics, and antispasmodics.

12. The compound three-dimensional surgical implant of claim 1, wherein the spiked naps are each from about 1 mm to about 2 mm in length.

13. The compound three-dimensional surgical implant of claim 1, wherein the density of spiked naps on the grip-type knit mesh is from about 50 to about 90 spiked naps per square centimeter.

14. The compound three-dimensional surgical implant of claim 1, wherein the principal cells of the prosthetic knit mesh have a diameter from about 1 mm to about 2 mm.

15. The compound three-dimensional surgical implant of claim 1, wherein the peripheral cells of the prosthetic knit mesh have a diameter from about 0.4 mm to about 0.8 mm.

16. The compound three-dimensional surgical implant of claim 1, wherein the peripheral cells allow the spiked naps of the grip-type knit mesh to grip the prosthetic knit mesh and the principal cells allow for tissue ingrowth in situ.

17. A compound three-dimensional surgical implant comprising:

a grip-type knit mesh defining pores and including a plurality of spiked naps extending from a surface thereof and a prosthetic knit mesh defining principal and/or peripheral cells located on the grip-type knit mesh, wherein the prosthetic knit mesh is smaller in surface area than the grip-type knit mesh and whereby at least a first portion of the spiked naps of the grip-type knit mesh grip the principal cells and/or peripheral cells of the prosthetic knit mesh forming a compound mesh and whereby the compound three-dimensional surgical implant is formed by folding the compound mesh into a predetermined three-dimensional structure such that at least a second portion of the spiked naps grip at least a portion of the pores to hold the three-dimensional structure of the compound three-dimensional surgical implant.