Compressible adjunct with crossing spacer fibers

1. A staple cartridge assembly for use with a surgical stapling instrument, wherein the staple cartridge assembly comprises:

a staple cartridge, comprising:

a plurality of staples; and

a cartridge deck; and

a compressible adjunct positionable against the cartridge deck, wherein the staples are deployable into tissue captured against the compressible adjunct, and wherein the compressible adjunct comprises:

a first biocompatible layer comprising a first portion;

a second biocompatible layer comprising a second portion; and

crossed spacer fibers extending between the first portion and the second portion, wherein each crossed spacer fiber comprises a first end and a second end, and wherein the first end is at least partially embedded in the first portion and the second end is at least partially embedded in the second portion.

2. A staple cartridge assembly for use with a surgical stapling instrument, wherein the staple cartridge assembly comprises:

a staple cartridge, comprising:

a plurality of staples; and

a cartridge deck; and

a compressible adjunct positionable against the cartridge deck, wherein the staples are deployable into tissue captured against the compressible adjunct, and wherein the compressible adjunct comprises:

a tissue-facing layer, comprising:

a first bonding node; and

a second bonding node arranged in a first row with the first bonding node;

a deck-facing layer, wherein the tissue-facing layer is spaced apart from the deck-facing layer, and wherein the deck-facing layer comprises:

a third bonding node vertically aligned with the first bonding node; and

a fourth bonding node vertically aligned with the second bonding node, wherein the fourth bonding node is arranged in a second row with the third bonding node;

a first spacer fiber extending between the first bonding node and the fourth bonding node, wherein the first spacer fiber comprises a first end and a second end, and wherein the first end is at least partially embedded within the tissue-facing layer and the second end is at least partially embedded within the deck-facing layer; and

a second spacer fiber extending between the second bonding node and the third bonding node, wherein the first spacer fiber crosses the second spacer fiber, wherein the second spacer fiber comprises a third end and a fourth end, and wherein the third end is at least partially embedded within the tissue-facing layer and the fourth end is at least partially embedded within the deck-facing layer.

3. The staple cartridge assembly of claim 2 , wherein the first row is parallel to the second row.

4. The staple cartridge assembly of claim 3 , wherein the first row further comprises a fifth bonding node between the first bonding node and the second bonding node.

5. The staple cartridge assembly of claim 4 , further comprising a first fiber portion interconnecting the first bonding node and the fifth bonding node.

6. The staple cartridge assembly of claim 5 , further comprising a second fiber portion interconnecting the second bonding node and the fifth bonding node.

7. The staple cartridge assembly of claim 6 , wherein the second row further comprises a sixth bonding node between the third bonding node and the fourth bonding node.

8. The staple cartridge assembly of claim 7 , further comprising a third fiber portion interconnecting the third bonding node and the sixth bonding node.

9. The staple cartridge assembly of claim 8 , further comprising a fourth fiber portion interconnecting the fourth bonding node and the sixth bonding node.

10. The staple cartridge assembly of claim 9 , wherein the fifth bonding node is vertically aligned with the sixth bonding node.

11. A staple cartridge assembly for use with a surgical stapling instrument, wherein the staple cartridge assembly comprises:

a staple cartridge, comprising:

a plurality of staples; and

a cartridge deck defining a proximal end and a distal end; and

a compressible adjunct positionable against the cartridge deck, wherein the staples are deployable into tissue captured against the compressible adjunct, and wherein the compressible adjunct comprises:

a tissue-facing layer, comprising:

a first bonding node; and

a second bonding node arranged in a first row with the first bonding node;

a deck-facing layer, wherein the tissue-facing layer is spaced apart from the deck-facing layer, and wherein the deck-facing layer comprises:

a third bonding node; and

a fourth bonding node, wherein the fourth bonding node is arranged in a second row with the third bonding node;

a first spacer fiber extending from the first bonding node to the third bonding node, wherein the first spacer fiber comprises a first end and a second end, and wherein the first end is at least partially embedded within the tissue-facing layer and the second end is at least partially embedded within the deck-facing layer;

a second spacer fiber extending from the first bonding node toward the deck-facing layer in a proximal direction;

a third spacer fiber extending from the first bonding node toward the deck-facing layer in a distal direction; and

a fourth spacer fiber extending from the second bonding node to the fourth bonding node, wherein the fourth spacer fiber comprises a third end and a fourth end, and wherein the third end is at least partially embedded within the tissue-facing layer and the fourth end is at least partially embedded within the deck-facing layer.

12. The staple cartridge assembly of claim 11 , further comprising a fifth spacer fiber extending from the second bonding node toward the deck-facing layer in the proximal direction.

13. The staple cartridge assembly of claim 12 , further comprising a sixth spacer fiber extending from the second bonding node toward the deck-facing layer in the distal direction.

14. The staple cartridge assembly of claim 13 , wherein the sixth spacer fiber crosses the second spacer fiber.

15. The staple cartridge assembly of claim 14 , further comprising a seventh spacer fiber extending from the first bonding node to the third bonding node.

16. The staple cartridge assembly of claim 15 , further comprising an eighth spacer fiber extending from the second bonding node to the fourth bonding node.

17. The staple cartridge assembly of claim 16 , wherein the first bonding node is vertically aligned with the third bonding node.

18. The staple cartridge assembly of claim 17 , wherein the second bonding node is vertically aligned with the fourth bonding node.

19. A staple cartridge assembly for use with a surgical stapling instrument, wherein the staple cartridge assembly comprises:

a staple cartridge, comprising:

a plurality of staples; and

a cartridge deck defining a proximal end and a distal end; and

a compressible adjunct positionable against the cartridge deck, wherein the staples are deployable into tissue captured against the compressible adjunct, and wherein the compressible adjunct comprises:

a tissue-facing layer;

a deck-facing layer, wherein the tissue-facing layer is spaced apart from the deck-facing layer, and wherein the deck-facing layer comprises:

an outer surface; and

an inner surface;

a first spacer fiber extending from the tissue-facing layer toward the inner surface;

a second spacer fiber extending from the tissue-facing layer toward the inner surface, wherein the first spacer fiber and the second spacer fiber extend through the deck-facing layer; and

a loop defined by the first spacer fiber and the second spacer fiber on the outer surface.

20. The staple cartridge assembly of claim 19 , wherein the first spacer fiber and the second spacer fiber intersect at the deck-facing layer.

21. The staple cartridge assembly of claim 20 , further comprising a third spacer fiber extending from the tissue-facing layer, wherein the third spacer fiber intersects the first spacer fiber and the second spacer fiber at the deck-facing layer.

22. A compressible adjunct positionable against a cartridge of a staple cartridge, wherein the staple cartridge comprises a plurality of staples deployable into tissue captured against the compressible adjunct, and wherein the compressible adjunct comprises:

a first biocompatible layer comprising a first portion;

a second biocompatible layer comprising a second portion; and

crossed spacer fibers extending between the first portion and the second portion, wherein each crossed spacer fiber comprises a first end and a second end, and wherein the first end is at least partially embedded in the first portion and the second end is at least partially embedded in the second portion.