多孔質融合デバイス

Abstract

2つ以上の生物学的組織の融合を補助するように構成された多孔質融合デバイス。外部フレームと、外部フレーム内の外部格子ケージと、内部多孔質格子構造と、外部フレームに配置され、内部多孔質格子構造内に突出する材料注入ポートと、を備える、多孔質融合デバイス。内部多孔質格子構造は、生物学的組織を模倣し、そこを通る材料の分散を可能にする可変密度勾配によって特徴付けられ得る。多孔質融合デバイスを提供することによって、骨移植材料などの2つ以上の組織の融合を補助する材料は、多孔質融合デバイスの内部構造に流れ込み、それによって組織融合の有効性を高め得る。加えて、多孔質融合デバイスのある特定の領域内の多孔質構造の密度を調整してもよい。これらの構造調整により、多孔質融合デバイスは、融合される2つ以上の組織の組織構造をよりよく模倣することが可能である。

Claims

1. A porous fusion device, External frame and An external lattice cage arranged within the external frame, An internal porous grid structure arranged within the external grid cage, A porous fusion device comprising a material injection port disposed in the external lattice cage and protruding into the internal porous lattice structure.

2. The porous fusion device according to claim 1, wherein the material injection port comprises a threaded channel, the threaded channel comprising a first threaded portion and a second threaded portion having a horizontal notch between them, and the material injection port is configured to interface with an injection tool.

3. The porous fusion device according to claim 2, wherein the horizontal notch is configured to distribute the applied force.

4. The porous fusion device according to claim 1, wherein the internal porous lattice structure has a variable density from the external lattice cage of the porous fusion device to its most central point.

5. The porous fusion device according to claim 4, wherein the variable density includes a gradual decrease in density from the outer lattice cage of the porous fusion device to its most central point.

6. The porous fusion device according to claim 1, wherein the external lattice cage comprises one or more of an octagonal lattice, a heptagonal lattice, a hexagonal lattice, or a pentagonal lattice.

7. The porous fusion device according to claim 1, further comprising the internal porous lattice structure and a plurality of material propagation channels arranged through the external lattice cage.

8. The porous fusion device according to claim 1, further comprising a backstop located on the opposite side of the material injection port, wherein the backstop is configured to hold the material injected into the porous fusion device.

9. A porous fusion device for fusing two or more tissues, External frame and An external lattice cage arranged within the external frame, An internal porous grid structure arranged within the external grid cage, A material injection port is arranged in the external lattice cage and protrudes into the internal porous lattice structure, The structure comprises a plurality of material propagation channels arranged within the internal porous lattice structure and extending to the external lattice cage, The internal porous lattice structure is organized with a variable density from the outer lattice cage of the porous fusion device to its central point. A porous fusion device configured to be backfilled with material after insertion into a patient.

10. The porous fusion device according to claim 9, wherein the plurality of material propagation channels comprises at least one horizontal material propagation channel fluidly coupled to at least one vertical material propagation channel.

11. The porous fusion device according to claim 10, wherein the at least one vertical material propagation channel extends through the external frame.

12. The porous fusion device according to claim 11, wherein the material injection port further comprises a threaded channel having a first threaded portion and a second threaded portion with a notch positioned between them.

13. The porous fusion device according to claim 9, wherein the plurality of material propagation channels comprises at least one horizontal material propagation channel fluidly coupled to at least one radially extending material propagation channel.

14. The porous fusion device according to claim 9, wherein the plurality of material propagation channels are arranged to direct the material to the two or more tissues.

15. A method for instructing the use of a porous fusion device, External frame and An external lattice cage arranged within the external frame, An internal porous grid structure arranged within the external grid cage, To provide a porous fusion device comprising a material injection port arranged in the external lattice cage and protruding into the internal porous lattice structure, Instructions to attach the material injection tool to the material injection port of the porous fusion device, To instruct the insertion of the porous fusion device between at least two biological tissues, To instruct at least a portion of the porous fusion device to fill with material via the material injection tool, A method comprising instructing the removal of the material injection tool from the material injection port on the porous fusion device.

16. The method according to claim 15, wherein the material injection port of the porous fusion device further comprises a threaded channel having a first threaded portion and a second threaded portion with a notch positioned between them.

17. The method according to claim 15, wherein instructing that at least a portion of the porous fusion device be filled with the material is performed before instructing that the porous fusion device be inserted between the at least two biological tissues.

18. The method according to claim 15, wherein the material injected into the porous fusion device is a bone graft material.

19. The method according to claim 15, wherein the internal porous lattice structure of the porous fusion device is organized with a variable density from the external lattice cage of the porous fusion device to the central point of the porous fusion device.

20. The method according to claim 15, wherein the porous fusion device further comprises a backstop positioned on the opposite side of the material injection port and configured to hold the material injected into the porous fusion device.

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