阅读说明：本技术 融合器 (Fusion cage ) 是由 兰彦宇 马宇立 刘明岩 刘强 于 2020-05-29 设计创作，主要内容包括：本发明提供一种融合器,包括：主框架结构,所述主框架结构包括前侧支撑件、后侧支撑件、第一上支撑条、第二上支撑条、第一下支撑条、第二下支撑条和安装支撑件；所述主框架结构的内部设有多个六面体中空框架单元,至少一个所述六面体中空框架单元与所述主框架结构连接；相邻的两个所述六面体中空框架单元相连接,每个所述六面体中空框架单元包括多个支撑梁；每个所述六面体中空框架单元的内部设有两个相互交错连接的中间加强梁。本融合器中,每个六面体中空框架单元的内部设有两个相互交错连接的中间加强梁,使得六面体中空框架单元具有较好的结构强度的同时,六面体中空框架单元具有供人工骨或自体骨生长的孔隙。(The invention provides a fusion cage, comprising: the main frame structure comprises a front side supporting piece, a rear side supporting piece, a first upper supporting piece, a second upper supporting piece, a first lower supporting bar, a second lower supporting bar and an installation supporting piece; a plurality of hexahedral hollow frame units are arranged inside the main frame structure, and at least one hexahedral hollow frame unit is connected with the main frame structure; two adjacent hexahedral hollow frame units are connected, and each hexahedral hollow frame unit comprises a plurality of support beams; two middle reinforcing beams which are connected in a staggered mode are arranged inside each hexahedral hollow frame unit. In this integration ware, every hexahedron cavity frame cell's inside is equipped with two mutual staggered connection's middle stiffening beam for when hexahedron cavity frame cell had better structural strength, hexahedron cavity frame cell had the hole that supplies artificial bone or autologous bone to grow.)

1. A fusion cage, comprising:

a main frame structure (100), the main frame structure (100) comprising a front support (110), a rear support (120), a first upper support bar (130), a second upper support bar (140), a first lower support bar (150), a second lower support bar (160), and a mounting support (170);

the front support (110) and the rear support (120) are oppositely arranged; the first upper supporting bar (130) and the second upper supporting bar (140) are arranged oppositely, and the first lower supporting bar (150) and the second lower supporting bar (160) are arranged oppositely; the first upper supporting bar (130) is above the first lower supporting bar (150), and the second upper supporting bar (140) is above the second lower supporting bar (160);

the front ends of the first upper supporting bar (130), the second upper supporting bar (140), the first lower supporting bar (150) and the second lower supporting bar (160) are connected with the front supporting piece (110); the rear ends of the first upper supporting bar (130), the second upper supporting bar (140), the first lower supporting bar (150) and the second lower supporting bar (160) are connected with the rear supporting piece (120);

the rear side support (120) is provided with a mounting support (170), and the mounting support (170) extends towards the inside of the main frame structure (100);

a plurality of hexahedral hollow frame units (200) are disposed inside the main frame structure (100), and at least one hexahedral hollow frame unit (200) is connected with the main frame structure (100); two adjacent hexahedral hollow frame units (200) are connected, each hexahedral hollow frame unit (200) including a plurality of support beams (210);

-when the hexahedral hollow frame unit (200) is connected with the main frame structure (100), the hexahedral hollow frame unit (200) is a hollow structure enclosed by the main frame structure (100) and the plurality of support beams (210);

when the hexahedral hollow frame unit (200) is not connected to the main frame structure (100), the hexahedral hollow frame unit (200) is a hollow structure surrounded by 12 of the support beams (210);

two middle reinforcing beams (220) which are connected in a staggered mode are arranged inside each hexahedral hollow frame unit (200), two ends of each middle reinforcing beam (220) are connected with the corresponding supporting beams (210) of the hexahedral hollow frame unit (200), and the plane where the two middle reinforcing beams (220) which are connected in a staggered mode are arranged in a staggered mode with each side face of the corresponding hexahedral hollow frame unit (200).

2. The fusion cage according to claim 1, wherein: each hexahedral hollow frame unit (200) is provided with a hollow frame front side part (201) and a hollow frame rear side part (202) which are sequentially arranged along the front-rear direction, two longitudinal reinforcing beams (230) which are mutually staggered and connected are arranged on each hollow frame front side part (201) and each hollow frame rear side part (202), and each longitudinal reinforcing beam (230) is connected with the end point of the hexahedral hollow frame unit (200).

3. The fusion cage according to claim 1, wherein: each hexahedral hollow frame unit (200) is provided with a hollow frame upper side part (203) and a hollow frame lower side part (204) which are sequentially arranged along the vertical direction, two transverse reinforcing beams (240) which are mutually staggered and connected are arranged on each hollow frame upper side part (203) and each hollow frame lower side part (204), and each transverse reinforcing beam (240) is connected with the end point of the hexahedral hollow frame unit (200).

4. The fusion cage according to claim 1, wherein: the middle reinforcing beam (220) is connected to the end points of the support beams (210) of the corresponding hexahedral hollow frame unit (200).

5. The fusion cage according to claim 1, wherein: the inner part of the hexahedral hollow frame unit (200) is provided with two separating beams (250) which are connected in a staggered manner, the plane where the two separating beams (250) which are connected in a staggered manner are located divides the hexahedral hollow frame unit (200) into an upper space (205) and a lower space (206) from top to bottom, and the inner part of the upper space (205) is provided with two middle reinforcing beams (220) which are connected in a staggered manner; the lower space (206) is internally provided with two middle reinforcing beams (220) which are connected with each other in a staggered way.

6. The fusion cage according to claim 1, wherein: the fusion cage is made of titanium alloy materials.

7. The fusion cage according to claim 1, wherein: the front support (110), the rear support (120), the first upper support (130), the second upper support (140), the first lower support (150), and the second lower support (160) are all solid structures.

8. The fusion cage according to claim 1, wherein: the first upper supporting bar (130), the second upper supporting bar (140), the first lower supporting bar (150) and the second lower supporting bar (160) have the same structure, the thickness of the front supporting piece (110) is greater than that of the first lower supporting bar (130), and the thickness of the rear supporting piece (120) is greater than that of the first lower supporting bar (150).

Technical Field

The invention relates to the technical field of implantation instruments, in particular to a fusion cage.

Background

At present, a fusion device is needed to be used for fusion in some spinal surgeries, but products on the market are mainly made of solid materials, and have no pores for artificial bones or autogenous bones to grow, so that the process of artificial bones or autogenous bones growing cannot be realized.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, the present invention solves the technical problem of providing a fusion cage.

To achieve the above and other related objects, the present invention provides a fusion cage comprising:

the main frame structure comprises a front side supporting piece, a rear side supporting piece, a first upper supporting piece, a second upper supporting piece, a first lower supporting bar, a second lower supporting bar and an installation supporting piece;

the front side supporting piece and the rear side supporting piece are oppositely arranged; the first upper supporting strip and the second upper supporting strip are arranged oppositely, and the first lower supporting strip and the second lower supporting strip are arranged oppositely; the first upper supporting bar is positioned above the first lower supporting bar, and the second upper supporting bar is positioned above the second lower supporting bar;

the front ends of the first upper supporting bar, the second upper supporting bar, the first lower supporting bar and the second lower supporting bar are connected with the front side supporting piece; the rear ends of the first upper supporting bar, the second upper supporting bar, the first lower supporting bar and the second lower supporting bar are connected with the rear side supporting piece;

the rear side support is provided with an installation support which extends towards the inside of the main frame structure;

a plurality of hexahedral hollow frame units are arranged inside the main frame structure, and at least one hexahedral hollow frame unit is connected with the main frame structure; two adjacent hexahedral hollow frame units are connected, and each hexahedral hollow frame unit comprises a plurality of support beams;

when the hexahedral hollow frame unit is connected with the main frame structure, the hexahedral hollow frame unit is a hollow structure surrounded by the main frame structure and the plurality of support beams;

when the hexahedral hollow frame unit is not connected to the main frame structure, the hexahedral hollow frame unit is a hollow structure surrounded by 12 of the support beams;

two middle reinforcing beams which are connected in a staggered mode are arranged inside each hexahedral hollow frame unit, two ends of each middle reinforcing beam are connected with the corresponding supporting beams of the hexahedral hollow frame units, and the plane where the two middle reinforcing beams which are connected in the staggered mode are located and each side face of the corresponding hexahedral hollow frame unit are arranged in the staggered mode.

Preferably, each hexahedral hollow frame unit has a hollow frame front side and a hollow frame rear side sequentially arranged in the front-rear direction, two longitudinal reinforcing beams staggered and connected with each other are provided on the hollow frame front side and the hollow frame rear side, and each longitudinal reinforcing beam is connected with an end point of the hexahedral hollow frame unit.

Preferably, each hexahedral hollow frame unit has a hollow frame upper side and a hollow frame lower side which are sequentially arranged in an up-down direction, two transverse reinforcing beams which are connected to each other in a staggered manner are provided on each of the hollow frame upper side and the hollow frame lower side, and each transverse reinforcing beam is connected to an end point of the hexahedral hollow frame unit.

Preferably, the intermediate reinforcing beams are connected to end points of the support beams of the respective hexahedral hollow frame units.

Preferably, two partition beams which are connected in a staggered manner are arranged inside the hexahedral hollow frame unit, a plane where the two partition beams which are connected in a staggered manner are located divides the hexahedral hollow frame unit into an upper space and a lower space from top to bottom, and two middle reinforcing beams which are connected in a staggered manner are arranged inside the upper space; two middle reinforcing beams which are connected in a staggered mode are arranged inside the lower space.

Preferably, the fusion cage is made of titanium alloy material.

Preferably, the front support, the rear support, the first upper support bar, the second upper support bar, the first lower support bar and the second lower support bar are all solid structures.

Preferably, the first upper supporting bar, the second upper supporting bar, the first lower supporting bar and the second lower supporting bar have the same structure, the thickness of the front supporting piece is greater than that of the first lower supporting bar, and the thickness of the rear supporting piece is greater than that of the first lower supporting bar.

As described above, the fusion cage of the present invention has the following advantageous effects:

in the fusion cage, the overall strength of the fusion cage is ensured by the external main frame structure, the plurality of hexahedral hollow frame units are arranged inside the main frame structure, and the two middle reinforcing beams which are mutually staggered and connected are arranged inside each hexahedral hollow frame unit, so that the hexahedral hollow frame units have better structural strength and have pores for the growth of artificial bones or autogenous bones, which is favorable for realizing the growth process of the artificial bones or the autogenous bones, accelerates the fusion speed and improves the success rate of the fusion; the fusion cage can be processed by using a 3D printing technology, so that the limitation of the existing processing technology is broken through, and the shape beneficial to the operation is realized according to the requirement.

Drawings

Fig. 1 is a right side perspective view of the fusion cage of the present embodiment.

Fig. 2 is a perspective view of the lower side of the fusion cage of the present embodiment.

Fig. 3 is a schematic top perspective view of the fusion cage of the present embodiment.

Fig. 4 is a schematic diagram showing a right side plan view of the fusion cage of the present embodiment.

Fig. 5 is a schematic left-side perspective view of the fusion cage of the present embodiment.

Fig. 6 is a schematic view of a hexahedral hollow frame unit having a hollow structure surrounded by 12 support beams.

Description of the reference numerals

100 main frame structure

110 front support

120 back side support

130 first upper supporting bar

140 second upper supporting bar

150 first lower supporting bar

160 second lower support bar

170 mounting support

200 hexahedral hollow frame unit

201 hollow frame front side

202 hollow frame rear side

203 hollow frame upper side part

204 hollow frame lower side part

205 upper space

206 lower space

207 edge hollow frame structure

208 hollow frame structure in the middle

210 support beam

220 middle reinforcing beam

230 longitudinal stiffening beam

240 transverse stiffening beam

250 partition beam

310 upper frame assembly

320 middle frame assembly

330 lower frame assembly

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.

Please refer to the attached drawings. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.

As shown in fig. 1 to 6, the fusion cage of the present embodiment includes:

a main frame structure 100, the main frame structure 100 including a front support 110, a rear support 120, a first upper support bar 130, a second upper support bar 140, a first lower support bar 150, a second lower support bar 160, and a mounting support 170;

the front support 110 and the rear support 120 are oppositely disposed; the first upper supporting bar 130 and the second upper supporting bar 140 are oppositely arranged, and the first lower supporting bar 150 and the second lower supporting bar 160 are oppositely arranged; the first upper supporting bar 130 is above the first lower supporting bar 150, and the second upper supporting bar 140 is above the second lower supporting bar 160;

the front ends of the first upper supporting bar 130, the second upper supporting bar 140, the first lower supporting bar 150 and the second lower supporting bar 160 are connected with the front side supporting piece 110; the rear ends of the first upper supporting bar 130, the second upper supporting bar 140, the first lower supporting bar 150 and the second lower supporting bar 160 are connected with the rear supporting piece 120;

the rear support 120 is provided with a mounting support 170, and the mounting support 170 extends toward the inside of the main frame structure 100;

a plurality of hexahedral hollow frame units 200 are disposed inside the main frame structure 100, and at least one hexahedral hollow frame unit 200 is connected to the main frame structure 100; two adjacent hexahedral hollow frame units 200 are connected, each hexahedral hollow frame unit 200 including a plurality of support beams 210;

when the hexahedral hollow frame unit 200 is connected to the main frame structure 100, the hexahedral hollow frame unit 200 is a hollow structure surrounded by the main frame structure 100 and the plurality of support beams 210;

when the hexahedral hollow frame unit 200 is not connected to the main frame structure 100, the hexahedral hollow frame unit 200 is a hollow structure surrounded by 12 support beams 210;

two middle reinforcing beams 220 connected to each other in a staggered manner are provided inside each hexahedral hollow frame unit 200, both ends of each middle reinforcing beam 220 are connected to the supporting beams 210 of the corresponding hexahedral hollow frame unit 200, and the plane where the two middle reinforcing beams 220 connected to each other in a staggered manner are provided with each side of the corresponding hexahedral hollow frame unit 200.

In the fusion cage, the overall strength of the fusion cage is ensured by the external main frame structure 100, a plurality of hexahedral hollow frame units 200 are arranged inside the main frame structure 100, and two middle reinforcing beams 220 which are mutually staggered and connected are arranged inside each hexahedral hollow frame unit 200, so that the hexahedral hollow frame units 200 have better structural strength, and meanwhile, the hexahedral hollow frame units 200 have pores for the growth of artificial bones or autogenous bones, which can facilitate the exit of metal powder in 3D printing, is favorable for realizing the growth process of the artificial bones or the autogenous bones, accelerates the fusion speed and improves the success rate of fusion; the fusion cage can be processed by using a 3D printing technology, so that the limitation of the existing processing technology is broken through, and the shape beneficial to the operation is realized according to the requirement.

In the present fusion cage, the arrangement of the hexahedral hollow frame unit 200 and the internal structure of the hexahedral hollow frame unit 200 can be changed according to actual use scenes and environments to change porosity and other properties and strength required for the trabecular bone structure.

In the present embodiment, the main frame structure 100 is a hexahedral structure; the front support 110, the rear support 120, the first upper support bar 130 and the first lower support bar 150 form a right side of the main frame structure 100, and the front support 110, the rear support 120, the second upper support bar 140 and the second lower support bar 160 form a left side of the main frame structure 100.

The junction of two adjacent hexahedral hollow frame units 200 has a common support beam 210. Of two adjacent hexahedral hollow frame units 200 sequentially connected in the front-rear direction of the main frame structure 100, a hollow frame rear side portion 202 of the hexahedral hollow frame unit 200 located at the front and a hollow frame front side portion 201 of the hexahedral hollow frame unit 200 located at the rear overlap. Of two adjacent hexahedral hollow frame units 200 connected in sequence in the vertical direction of the main frame structure 100, the hollow frame lower side 204 of the hexahedral hollow frame unit 200 located above and the hollow frame upper side 203 of the hexahedral hollow frame unit 200 located below overlap. Of the two adjacent hexahedral hollow frame units 200 sequentially connected in the left-right direction of the main frame structure 100, the right side of the hollow frame of the hexahedral hollow frame unit 200 at the left coincides with the left side of the hollow frame of the hexahedral hollow frame unit 200 at the right.

Along the left and right directions of the main frame structure 100, a plurality of rows of frame unit structures, in this embodiment, two rows of frame unit structures, are arranged inside the main frame structure 100; each row of frame unit components comprises an upper frame component 310, a middle frame component 320 and a lower frame component 330 which are arranged from top to bottom in sequence;

each of the upper frame assembly 310 and the lower frame assembly 330 includes a plurality of hexahedral hollow frame units 200 sequentially connected in the front-rear direction of the main frame structure 100, each of the hexahedral hollow frame units 200 has a hollow frame front side 201 and a hollow frame rear side 202 sequentially arranged in the front-rear direction, two longitudinal reinforcing beams 230 are provided on each of the hollow frame front side 201 and the hollow frame rear side 202 to be alternately connected to each other, and each of the longitudinal reinforcing beams 230 is connected to the end points of the hexahedral hollow frame unit 200. This structure enhances the support strength of the fusion cage in the up-down direction.

Each of the middle reinforcement beams 220 is connected to the end points of the support beams 210 of the corresponding hexahedral hollow frame unit 200 in the upper and lower frame assemblies 310 and 330, which can make the connection node of the cage more stable.

In the upper frame assembly 310 and the lower frame assembly 330, each hexahedral hollow frame unit 200 has a hollow frame upper side portion 203 and a hollow frame lower side portion 204 sequentially arranged in the up-down direction, two transverse reinforcing beams 240 are provided on each of the hollow frame front side portion 201 and the hollow frame rear side portion 202 to be alternately connected to each other, and each transverse reinforcing beam 240 is connected to an end point of the hexahedral hollow frame unit 200. This structure enhances the support strength of the fusion cage in the left-right direction.

In this embodiment, all the hexahedral hollow frame units 200 of the upper and lower frame assemblies 310 and 330 are connected to the main frame structure 100. This configuration makes the cage easy to manufacture.

The middle frame assembly 320 includes a plurality of hexahedral hollow frame units 200 sequentially connected along the front-to-rear direction of the main frame structure 100; in the middle frame assembly 320, each hexahedral hollow frame unit 200 has a hollow frame front side 201 and a hollow frame rear side 202 sequentially arranged in the front-rear direction, two longitudinal reinforcing beams 230 are provided on each of the hollow frame front side 201 and the hollow frame rear side 202 to be alternately connected to each other, and each longitudinal reinforcing beam 230 is connected to the end points of the hexahedral hollow frame unit 200. The structure enhances the supporting strength of the fusion cage in the up-down direction; in the middle frame assembly 320, each hexahedral hollow frame unit 200 has a hollow frame upper side 203 and a hollow frame lower side 204 sequentially arranged in the up-down direction, two transverse reinforcing beams 240 are provided on each of the hollow frame front side 201 and the hollow frame rear side 202 to be alternately connected to each other, and each transverse reinforcing beam 240 is connected to the end points of the hexahedral hollow frame unit 200. This structure enhances the support strength of the fusion cage in the left-right direction.

In the middle frame assembly 320, two partition beams 250 connected to each other in a staggered manner are provided inside each hexahedral hollow frame unit 200, the plane where the two partition beams 250 connected to each other in a staggered manner are located divides the hexahedral hollow frame unit 200 into an upper space 205 and a lower space 206 from top to bottom, and two middle reinforcing beams 220 connected to each other in a staggered manner are provided inside the upper space 205; the lower space 206 is internally provided with two intermediate reinforcement beams 220 which are coupled to each other in a staggered manner. This makes the structure of intermediate frame assembly 320 more robust.

Among all the hexahedral hollow frame units 200 in the middle frame assembly 320 are hexahedral hollow frame units 200 connected to the main frame structure 100 and hexahedral hollow frame units 200 not connected to the main frame structure 100; the hexahedral hollow frame unit 200 connected to the main frame structure 100 in the middle frame assembly 320 is the edge hollow frame structure 207; the hexahedral hollow frame units 200, which are not connected to the main frame structure 100, in the middle frame assembly 320 are middle hollow frame structures 208. This configuration makes the cage easy to manufacture.

In this embodiment, the cross-section of the support beam 210 is circular.

The anterior support 110 is in a forwardly converging configuration and the posterior support 120 is in a rearwardly converging configuration. This configuration facilitates the insertion of the fusion cage into the human body.

The mounting support portion extends towards the interior of the main frame structure 100 and facilitates the use of tools to mount the cage. The mounting support part is provided with a threaded hole for inserting a screwdriver or a bearing part for clamping a clamping tool.

The anterior support 110, the posterior support 120, the first upper support bar 130, the second upper support bar 140, the first lower support bar 150 and the second lower support bar 160 are all solid structures to provide the compressive rigidity required by the cage itself.

The first upper support bar 130, the second upper support bar 140, the first lower support bar 150, and the second lower support bar 160 have the same structure, and the thickness W1 of the front support bar 110 is greater than the thickness W3 of the first lower support bar 150. The thickness W2 of the rear support 120 is greater than the thickness W3 of the first lower support bar 150. The anterior and posterior supports 110 and 120 are solid structures, and both the anterior and posterior supports 110 and 120 are thicker than the first lower support bar 150, so that the fusion cage of the present invention can resist impact load when the fusion cage is driven into the intervertebral space.

The fusion cage is made of titanium alloy material.

In conclusion, the present invention effectively overcomes various disadvantages of the prior art and has high industrial utilization value.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.