IP Library › Granted Patent US 12,697,199
Granted Patent B2
US 12,697,199 · App. 16/907,104 · Granted Aug 4, 2026

Prosthetic repair fabric

Inventors: Augustus Felix (Cranston, RI); Michael Ligeikis (Marlton, NJ)
Assignee: Davol Inc.
A61F2/0063A61F2002/0068
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Quick Facts
Patent No.
US 12,697,199
App. No.
16/907,104
Filed
Jun 19, 2020
Granted
Aug 4, 2026
Kind
B2
Examiner
OU, JING RUI
Art Unit
3771
USPC
606/151
Abstract

The repair fabric includes a dual bar warp knit mesh for use in repairing soft tissue and muscle wall defects, including hernia repair and chest wall reconstruction. The repair fabric may be produced according to a first bar pattern chain of 4/2 4/6 4/2 6/8 6/4 6/8 of first filaments and a second bar pattern chain of 6/8 2/0 6/8 4/2 8/10 4/2 of second filaments. The diameter of the first filaments being different from the diameter of the second filaments.

Claims (42)

1 . An implantable prosthetic repair fabric, comprising:

a biologically compatible, implantable dual bar warp knit mesh produced according to a first bar pattern chain of 4/2 4/6 4/2 6/8 6/4 6/8 and a second bar pattern chain of 6/8 2/0 6/8 4/2 8/10 4/2, the mesh is knitted of a first monofilament having a first diameter and a second monofilament having a second diameter which is greater than the first diameter, the first monofilament being knitted according to the first bar pattern chain and the second monofilament being knitted according to the second bar pattern chain.

2 . The implantable prosthetic repair fabric according to claim 1 , wherein the first and second monofilaments include polypropylene monofilament.

3 . The implantable prosthetic repair fabric according to claim 1 , wherein the first monofilament has a diameter of approximately 0.0045 to 0.0051 inches and the second monofilament has a diameter of approximately 0.0063 to 0.0075 inches.

4 . The implantable prosthetic repair fabric according to claim 3 , wherein the first monofilament has a diameter of approximately 0.0048 inches and the second monofilament has a diameter of approximately 0.0075 inches.

5 . The implantable prosthetic repair fabric according to claim 1 , wherein the first monofilament has a denier of approximately 98±11 and the second monofilament has a denier of approximately 240±20.

6 . The implantable prosthetic repair fabric according to claim 1 , wherein the first and second monofilaments have a tenacity of approximately 6.00 to 8.50 grams per denier.

7 . The implantable prosthetic repair fabric according to claim 6 , wherein the first and second monofilaments have a tenacity of approximately 6.2 grams per denier.

8 . The implantable prosthetic repair fabric according to claim 1 , wherein the mesh has a knit construction that includes approximately 34 to 36 courses per inch and approximately 12 to 17 wales per inch.

9 . The implantable prosthetic repair fabric according to claim 1 , wherein the mesh has a weight per unit area of approximately 0.0661 to 0.0690 grams per square inch.

10 . The implantable prosthetic repair fabric according to claim 1 , wherein the mesh has a thickness of approximately 0.022 to 0.024 inches.

11 . The implantable prosthetic repair fabric according to claim 1 , wherein the mesh has a ball burst strength of 35 lbs to 42.4 lbs.

12 . The implantable prosthetic repair fabric according to claim 11 , wherein the mesh has a ball burst strength of 36 lbs to 40 lbs.

13 . The implantable prosthetic repair fabric according to claim 12 , wherein the mesh has a ball burst strength of 36 lbs to 39 lbs.

14 . The implantable prosthetic repair fabric according to claim 1 , wherein the mesh has a suture pullout strength of 9 lbs to 11 lbs in the machine direction and 7.5 lbs to 9.5 lbs in the cross direction.

15 . The implantable prosthetic repair fabric according to claim 14 , wherein the mesh has a suture pullout strength of approximately 10.2 lbs in the machine direction and approximately 8.5 lbs in the cross direction.

16 . The implantable prosthetic repair fabric according to claim 1 , wherein the mesh has a tensile strength of 11.8 lbs to 16.8 lbs in the machine direction and 34.2 lbs to 47.2 lbs in the cross direction.

17 . The implantable prosthetic repair fabric according to claim 16 , wherein the mesh has a tensile strength of approximately 14.3 lbs in the machine direction and approximately 40.7 lbs in the cross direction.

18 . An implantable prosthetic repair fabric, comprising:

a knit mesh that includes a plurality of generally polygonal shaped primary pores defined by knitted strands of first filaments having a first diameter; and

a pair of individual second filaments that extend across each primary pore to define a plurality of secondary pores within each primary pore, each of the pair of individual second filaments extending substantially parallel to one another, each of the second filaments having a second diameter which is greater than the first diameter.

19 . The implantable prosthetic fabric according to claim 18 , wherein each primary pore has an area of approximately 0.0103 to 0.0123 square inches.

20 . The implantable prosthetic fabric according to claim 18 , wherein the primary pores are generally hexagonal shaped.

21 . The implantable prosthetic repair fabric according to claim 18 , wherein the mesh is formed of knitted first and second monofilaments.

22 . The implantable prosthetic repair fabric according to claim 21 , wherein the first and second monofilaments include polypropylene monofilament.

23 . The implantable prosthetic repair fabric according to claim 22 , wherein the first monofilament has a diameter of approximately 0.0045 to 0.0051 inches and the second monofilament has a diameter of approximately 0.0063 to 0.0075 inches.

24 . The implantable prosthetic repair fabric according to claim 22 , wherein the first monofilament has a diameter of approximately 0.0048 inches and the second monofilament has a diameter of approximately 0.0075 inches.

25 . The implantable prosthetic repair fabric according to claim 22 , wherein the first monofilament has a denier of approximately 98±11 and the second monofilament has a denier of approximately 240±20.

26 . The implantable prosthetic repair fabric according to claim 22 , wherein the first and second monofilaments have a tenacity of approximately 6.00 to 8.50 grams per denier.

27 . The implantable prosthetic repair fabric according to claim 22 , wherein the first and second monofilaments have a tenacity of approximately 6.2 grams per denier.

28 . The implantable prosthetic repair fabric according to claim 18 , wherein the mesh has a knit construction that includes approximately 34 to 36 courses per inch and approximately 12 to 17 wales per inch.

29 . The implantable prosthetic repair fabric according to claim 18 , wherein the mesh has a weight per unit area of approximately 0.0661 to 0.0690 grams per square inch.

30 . The implantable prosthetic repair fabric according to claim 18 , wherein the mesh has a thickness of approximately 0.022 to 0.024 inches.

31 . An implantable prosthetic repair fabric, comprising:

a biologically compatible, implantable dual bar warp knit mesh produced according to a first bar pattern chain of 4/2 4/6 4/2 6/8 6/4 6/8 and a second bar pattern chain of 6/8 2/0 6/8 4/2 8/10 4/2, the mesh having a ball burst strength of 35 lbs to 42.4 lbs, a suture pullout strength of 9 lbs to 11 lbs in the machine direction and 7.5 lbs to 9.5 lbs in the cross direction, and a tensile strength of 11.8 lbs to 16.8 lbs in the machine direction and 34.2 lbs to 47.2 lbs in the cross direction.

32 . The implantable prosthetic repair fabric according to claim 31 , wherein the mesh has a ball burst strength of 36 lbs to 39 lbs.

33 . The implantable prosthetic repair fabric according to claim 31 , wherein the mesh has a suture pullout strength of approximately 10.2 lbs in the machine direction and approximately 8.5 lbs in the cross direction.

34 . The implantable prosthetic repair fabric according to claim 31 , wherein the mesh has a tensile strength of approximately 14.3 lbs in the machine direction and approximately 40.7 lbs in the cross direction.

35 . The implantable prosthetic repair fabric according to claim 31 , wherein the mesh is knitted of a first monofilament having a first diameter and a second monofilament having a second diameter which is greater than the first diameter, the first monofilament being knitted according to the first bar pattern chain and the second monofilament being knitted according to the second bar pattern chain.

36 . The implantable prosthetic repair fabric according to claim 31 , wherein the mesh has a knit construction that includes approximately 34 to 36 courses per inch and approximately 12 to 17 wales per inch.

37 . The implantable prosthetic repair fabric according to claim 31 , wherein the mesh has a weight per unit area of approximately 0.0661 to 0.0690 grams per square inch.

38 . The implantable prosthetic repair fabric according to claim 31 , wherein the mesh has a thickness of approximately 0.022 to 0.024 inches.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 26, 2021
From: FELIX, AUGUSTUS; LIGEIKIS, MICHAEL
To: DAVOL INC.
Reel/Frame 055730/0857 →
Continuity (1)
Related Publication 20210393390A1 · Dec 23, 2021
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