LOW MASS DENSITY SURGICAL IMPLANT HAVING STRANDS AND METHODS OF USE

• US 20130289340A1
• Filed: 06/21/2013
• Published: 10/31/2013
• Est. Priority Date: 03/30/2001
• Status: Active Grant

• Current Assignee: Coloplast A/S
• Original Assignee: Coloplast A/S
• Inventors: Browning, James
• Granted Patent: US 8,632,554 B2
• Time in Patent Office: Days
• US Class Current: 600/37
• 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 non-absorbable surgical implant for use in the treatment of a vaginal prolapse is provided. The implant includes a knitted mesh having a mass density of less than 25 g/m². The knitted mesh includes a monofilament, strands formed of the monofilament, major spaces located between adjacent strands and pores located within the strands. A method of treating a vaginal prolapse with a surgical implant is also provided.

Claims

1. A non-absorbable surgical implant for use in the treatment of a vaginal prolapse selected from the group consisting of urethrocoele prolapse, cystocoele prolapse, vault prolapse, uterine prolapse, enterocoele prolapse, and rectocoele prolapse, the implant comprising:

a knitted mesh having a mass density of less than 25 g/m², wherein the knitted 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 less than about 600 μ

m;

major spaces located between adjacent ones of the strands, the major spaces having a width of from about 1 mm to 10 mm; and

pores located within the strands, the pores having 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 knitted mesh is configured to be secured in place to treat the prolapse, and

wherein at least one member from the group consisting of major spaces and pores is configured to allow blood to pass through the knitted mesh or to allow fibroblast throughgrowth.

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

3. The implant of claim 1, wherein the implant has a width of from about 1 cm to 10 cm.

4. The implant of claim 1, wherein the knitted mesh is a warp knitted mesh.

5. The implant of claim 1, wherein the strands have a diameter of from about 150 μ

m to 600 μ

m.

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

7. An implant adapted to treat a prolapse in a patient, the implant comprising:

a knitted mesh having a mass density of less than 25 g/m², wherein the mesh comprises;

strands comprising polypropylene and having a diameter of less than about 600 μ

m;

major spaces located between adjacent ones of the strands, the major spaces having a width of from about 1 mm to 10 mm; and

pores located within the strands, the pores having 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.

8. The implant of claim 7, wherein the strands have a diameter of from about 150 μ

m to 600 μ

m.

9. The implant of claim 7, wherein the strands are formed from at least one filament having a diameter of from about 0.02 mm to 0.15 mm.

10. The implant of claim 9, wherein the at least one filament is a monofilament.

11. The implant of claim 9, wherein the pores are formed between the at least one filament.

12. The implant of claim 7, wherein the implant is a non-absorbable implant.

13. A method for treating a vaginal prolapse in a patient, the method comprising:

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

inserting an implant into a patient, the implant comprising;

at least one biocompatible polypropylene filament 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 less than about 600 μ

m;

major spaces located between adjacent ones of the strands, the major spaces having a width of from about 1 mm to 10 mm; and

pores located within the strands, the pores having a diameter of from about 50 μ

m to 200 μ

m; and

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

14. The method of claim 13, wherein securing the knitted mesh in place includes securing the knitted mesh in place with sutures.

15. The method of claim 13, wherein inserting the implant includes inserting a non-absorbable implant.

16. The method of claim 13, wherein the knitted mesh is a warp knitted mesh.

17. The method of claim 13, 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.

18. The method of claim 13, wherein accessing the vaginal prolapse comprises accessing the vaginal prolapse through a minimally invasive surgical procedure.

19. The method of claim 13, wherein the strands have a diameter of from about 150 μ

m to 600 μ

m.

20. The method of claim 13, and further comprising cutting the knitted mesh to at least one of an appropriate width and an appropriate length.