Surgical implant having strands and methods of use

• US 8,603,119 B2
• Filed: 06/21/2013
• Issued: 12/10/2013
• 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:
  US13/924,361
• Publication Number:
  US 20130281775A1
• Time in Patent Office: 172 Days
• Field of Search: 606/151, 623 2372- 2374, 600/29, 600/30, 600/37, 424422-424, 424/443
• 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 adapted to treat a prolapse is provided. The implant includes a knitted mesh having at least one monofilament, strands formed of the at least one monofilament, major spaces located between the strands and pores located within the strands. Methods of treating a vaginal prolapse with a surgical implant are also provided.

Claims

1. A surgical implant adapted to treat a urethrocoele prolapse, cystocoele prolapse, vault prolapse, uterine prolapse, enterocoele prolapse, or rectocoele prolapse in a patient, the surgical implant comprising:

a knitted mesh having a mass density of less than 50 g/m², wherein the mesh comprises;

at least one biocompatible polypropylene monofilament having a diameter of from about 0.02 mm to 0.15 mm;

strands formed of the at least one monofilament and having a diameter of from about 150 μ

m to 600 μ

m;

major spaces located between the strands to allow blood to pass through the surgical implant, wherein the major spaces have a width of from about 1 mm to 10 mm; and

pores located within the strands to aid tissue ingrowth, wherein the pores have a diameter of from about 50 μ

m to 200 μ

m;

wherein the implant is non-absorbable, has at least one of a width and a length of from about 1 cm to 10 cm, and is configured to be implanted in a region of the prolapse, and

wherein the knitted mesh is configured to be secured in place to treat the prolapse.

2. The implant of claim 1 and further comprising openings located between adjacent monofilaments and adjacent strands, the openings consisting of major spaces and pores.

3. The implant of claim 1, wherein the at least one monofilament has a diameter of from about 0.08 mm to 0.1 mm.

4. The implant of claim 1, wherein the pores are formed by loops formed by the monofilament.

5. The implant of claim 1, wherein the knitted mesh is a net pattern knitted mesh.

6. The implant of claim 1, wherein the knitted mesh has a density of less than 30 g/m².

7. The implant of claim 1, wherein the knitted mesh is configured to have sufficient elasticity to support the prolapse.

8. A surgical implant adapted to treat a prolapse in a patient, the surgical implant comprising:

a knitted mesh having a mass density of less than 50 g/m², wherein the mesh comprises;

strands comprising at least one polypropylene filament and having a diameter of from about 150 μ

m to 600 μ

m;

major spaces located between the strands to allow blood to pass through the surgical implant, wherein the major spaces have a width of from about 1 mm to 10 mm; and

pores located within the strands to aid tissue ingrowth, wherein the pores have a diameter of from about 50 μ

m to 200 μ

m;

wherein the implant is configured to be implanted in a region of the prolapse, wherein the prolapse is selected from the group consisting of urethrocoele prolapse, cystocoele prolapse, vault prolapse, uterine prolapse, enterocoele prolapse, and rectocoele prolapse, and

wherein the knitted mesh is configured to be secured in place to treat the prolapse.

9. The implant of claim 8, wherein the implant consists of strands, major spaces and pores.

10. The implant of claim 8, wherein the at least one filament has a diameter of from about 0.02 mm to 0.15 mm.

11. The implant of claim 8, wherein the pores are formed by the at least one filament.

12. The implant of claim 8, wherein the implant is a non-absorbable implant.

13. The implant of claim 8, wherein the implant is configured to be attached to a vaginal wall.

14. A method of treating a vaginal prolapse in a patient, the method comprising:

accessing the vaginal prolapse, wherein the vaginal prolapse is selected from the group consisting of urethrocoele prolapse, cystocoele prolapse, vault prolapse, uterine prolapse, enterocoele prolapse, and rectocoele prolapse;

inserting into the patient an implant comprising a knitted mesh having a mass density of less than 50 g/m², the knitted mesh comprising;

at least one biocompatible filament comprising polypropylene having a diameter of from about 0.02 mm to 0.15 mm;

strands formed of the at least one filament and having a diameter of from about 150 μ

m to 600 μ

m;

major spaces formed between the strands having a width of from about 1 mm to 10 mm that allow blood to pass through the surgical implant;

pores formed within the strands by the at least one filament, the pores having a diameter of from about 50 μ

m to 200 μ

m in diameter to aid tissue ingrowth; and

securing the knitted mesh in place such that the implant supports the pelvic floor of the patient.

15. The method of claim 14, wherein the knitted mesh further comprises openings formed between and within the strands, the openings consisting of the major spaces and the pores.

16. The method of claim 14, wherein inserting the implant includes inserting a non-absorbable implant.

17. The method of claim 14, wherein the knitted mesh is a warp knitted mesh.

18. The method of claim 14, wherein securing the knitted mesh in place comprises securing the knitted mesh in place such that the implant supports a vaginal wall of the patient.

19. The method of claim 14, wherein accessing the vaginal prolapse comprises accessing the vaginal prolapse through a minimally invasive surgical procedure.

20. The method of claim 14, wherein the strands are arranged such that they form a regular network and are spaced apart from each other to form a net pattern.