Surgical implant

• US 8,100,924 B2
• Filed: 09/01/2009
• Issued: 01/24/2012
• Est. Priority Date: 03/30/2001
• Status: Expired due to Term

• Current Assignee: Coloplast A/S
• Original Assignee: Coloplast A/S
• Inventors: Browning, James
• Primary Examiner(s): WOO, JULIAN W
• Application Number:
  US12/551,676
• Publication Number:
  US 20100222794A1
• Time in Patent Office: 875 Days
• Field of Search: 606/151, 128/898, 623 2372- 2374, 424422-424, 600/29, 600/30, 600/37
• US Class Current: 606/151
• CPC Class Codes: A61F 2/0036 implantable A61F2/0018 takes precedence
• 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 2002/0072 Delivery tools therefor
• CPC Class Codes: A61F 2002/0081 directly machined on the prosthetic surface, e.g. holes, grooves A61F2/30771 takes precedence
• CPC Class Codes: A61F 2002/0086 for preferentially controlling or promoting the growth of specific types of cells or tissues of bone tissue onto implantable joints A61F2002/3093
• CPC Class Codes: A61F 2250/0071 breakable or frangible

Abstract

A surgical implant suitable for treatment of hernias is provided. The implant comprises a mesh having a residual maximum mass density of 50 g/m². The mesh comprises strands forming spaces and the strands comprise filaments forming pores. The spaces and pores are sized to minimise foreign body mass for implantation and to encourage integration of the implant. The mesh may be delivered using Dual Phase Technology™ for ease of handling, cutting and placement. The Dual Phase Technology™ may include encapsulation or coating with hydrogel.

Claims

1. A method of providing support to a prolapsed area of a patient, the method comprising the steps of:

making an incision to access a prolapse selected from the group consisting of urethrocoele prolapse, cystocoele prolapse, vault prolapse, uterine prolapse, enterocoele prolapse, and rectocoele prolapse;

forming a space in tissues;

inserting through the incision into the space in the tissues an implant comprising a mesh having a mass density of 20 g/m² or less; and

implanting the mesh in the area of the prolapse to provide support to a vaginal wall of the patient.

2. The method of claim 1, comprising implanting the implant in a minimally invasive surgical procedure.

3. The method of claim 1, comprising implanting the implant in a laparoscopic surgical procedure.

4. The method of claim 1, wherein implanting the mesh comprises implanting a mesh providing major spaces formed in the mesh that are configured to allow blood to pass through the implant.

5. The method of claim 1, wherein implanting the implant comprises implanting mesh providing pore spaces formed in the mesh that are configured to allow fibroblast growth through the mesh.

6. The method of claim 1, wherein the mesh includes biocompatible polypropylene filaments.

7. The method of claim 1, wherein the mesh includes strands and the strands are spaced apart to form major spaces of about 1 mm to about 10 mm.

8. The method of claim 7, wherein the strands are legs than about 600 μ

m in diameter.

9. The method of claim 7, wherein the strands are formed by monofilaments having diameters between about 0.02 mm to 0.15 mm.

10. The method of claim 7, wherein pores are formed within the strands, and wherein the pores are between about 50 μ

m and about 200 μ

m in diameter.

11. The method of claim 7, wherein the strands are knitted to form a warp knitted mesh.

12. The method of claim 1, wherein the mesh has isotropic or near isotropic tensile strength.

13. The method of claim 1, wherein the mesh has a diamond net pattern.

14. The method of claim 1, wherein the implant is about 1-10 cm wide.

15. The method of claim 1, wherein implanting the mesh comprises securing a portion of the mesh to the vaginal wall of the patient.