WO2021068621A1

WO2021068621A1 - Square height-adjustable fusion cage

Info

Publication number: WO2021068621A1
Application number: PCT/CN2020/106406
Authority: WO
Inventors: 赵汝琛
Original assignee: 广州爱锘德医疗器械有限公司
Priority date: 2019-10-11
Filing date: 2020-07-31
Publication date: 2021-04-15
Also published as: CN112641541A

Abstract

A square height-adjustable fusion cage, comprising a body. The body comprises at least two basic members (100) arranged at an interval. A structural member (200) is provided between two adjacent basic members (100), and two ends of the structural member (200) are respectively connected to the two adjacent basic members (100). The two adjacent basic members (100) are both provided with connecting members. The body has an extrusion deformation state. In the extrusion deformation state, the distance between the two adjacent basic members (100) is reduced, the structural member (200) protrudes outwardly to form a supporting surface (201), and the connecting members on the two adjacent basic members (100) are connected. When the body is in the extrusion deformation state, the structural member (200) is extruded, so that the structural member (200) protrudes outwardly to support a vertebral body, and the connecting members on the two adjacent basic members (100) are connected, so that the distance between the adjacent basic members (100) is fixed, and the outwardly protruding portion of the structural member (200) is then kept at a certain height. The outwardly protruding portion of the structural member (200) is not prone to deformation, and the supporting effect on the vertebral body is thus relatively stable.

Description

Square height adjustable fusion cage

Technical field

The invention relates to the technical field of medical devices, in particular to a square height adjustable fusion cage.

Background technique

With the aging of the population, degenerative diseases of the spine with neck and shoulder pain and low back and leg pain as the main symptoms are seriously affecting people's work and life. Fusion of vertebral bodies between vertebral bodies is currently one of the main methods for the treatment of degenerative spinal diseases.

Since each patient's spine and damaged spine are different, before surgery, doctors need to use multiple square height adjustable fusion cages with different heights for testing until the most suitable square height adjustable fusion cage is found for the operation. At the same time, the square height adjustable fusion cage needs to ensure stable support for the vertebral body after the operation, but the stability of the traditional square height adjustable fusion cage is poor.

Summary of the invention

Based on this, the present invention overcomes the defects of the prior art and provides a square height adjustable cage with better stability.

The technical scheme is as follows:

A square height adjustable fusion cage, comprising a main body, the main body includes at least two base members arranged at intervals, a structural member is arranged between two adjacent base members, and two ends of the structural member are connected with each other Two adjacent base members are connected, and the two adjacent base members are each provided with a connecting member, and the main body has a state of squeezing deformation. In the state of squeezing deformation, two adjacent ones The distance between the base members is reduced, the structural member protrudes outward to form a supporting surface, and the connecting members on two adjacent base members are connected.

In the above-mentioned square height adjustable fusion cage, when the main body is in the state of being squeezed and deformed, the distance between two adjacent base members is reduced, and the structural member is squeezed, causing the structural member to bulge outward and support the vertebral body At this time, the connecting pieces on the two adjacent base members are connected to fix the distance between the two adjacent base members, and then the convex part of the structural member maintains a certain height. At this time, the structural member is facing The convex part is not easy to deform, and the supporting effect on the vertebral body is relatively stable.

In one of the embodiments, the connecting members on two adjacent base members are a first connecting member and a second connecting member, respectively, and the first connecting member is sequentially provided with along the arrangement direction of the base member. There are at least two first adjusting parts, and the second connecting member is provided with a second adjusting part that is clamped with the first adjusting part.

In one of the embodiments, the first adjusting portion is a first locking slot provided on the first connecting member, and the second adjusting portion is a first locking tooth matching the first locking slot.

In one of the embodiments, the first connecting member is provided with a plurality of second clamping teeth, the first clamping groove is formed between two adjacent second clamping teeth, and the first clamping teeth The number is at least two, and a second clamping slot matching the second clamping tooth is formed between two adjacent first clamping teeth.

In one of the embodiments, the first clamping tooth includes a tooth surface and a back surface, the tooth surface is provided on a side of the back surface close to the first connecting member, and the tooth surface faces away from the first connecting member. The direction of the piece is arranged obliquely, and the back surface is arranged perpendicular to the horizontal plane.

In one of the embodiments, the supporting surface is a planar structure.

In one of the embodiments, the structural member includes a first connecting portion, a supporting portion, and a second connecting portion that are connected in sequence, and the connection between the first connecting portion and the supporting portion can be bent, and the second The connecting portion between the connecting portion and the supporting portion can be bent, and the outer side surface of the supporting portion is the supporting surface.

In one of the embodiments, the first connecting portion includes two first plate members arranged at intervals, both ends of the first plate member are respectively connected to the base member and the supporting portion, and the second The connecting part includes two second plates arranged at intervals, and two ends of the second plate are respectively connected with the base part and the supporting part.

In one of the embodiments, there are two structural members between two adjacent base members, and the two structural members are a first structural member and a second structural member, respectively, and the first structure The supporting part of the first structural part and the supporting part of the second structural part are both protruding in a relatively distant direction.

In one of the embodiments, the above-mentioned square height adjustable fusion cage further includes a guide block, the base part is provided with an opening, and the guide block slides through the opening and is connected to one of the base parts.

Description of the drawings

Fig. 1 is a perspective view of a square height adjustable cage according to an embodiment of the present invention in a state of being squeezed and deformed;

Fig. 2 is a side view of the square height adjustable cage according to the embodiment of the present invention in a state of being squeezed and deformed;

Figure 3 is a top view of the square height adjustable fusion cage according to an embodiment of the present invention in a state of being squeezed and deformed;

Figure 4 is a side view of the square height adjustable cage in an undeformed state according to an embodiment of the present invention;

Figure 5 is a partial enlarged view of A in Figure 2;

Figure 6 is a perspective view of a square height adjustable cage in a state of being squeezed and deformed according to another embodiment of the present invention;

Fig. 7 is a schematic diagram of the assembly of the square height adjustable cage according to the embodiment of the present invention.

Description of reference signs:

100. Basic member, 101, first basic member, 102, second basic member, 200, structural member, 201, supporting surface, 202, first structural member, 203, second structural member, 210, first connecting part, 211. The first plate, 220, the supporting portion, 221, the first extension, 222, the second extension, 230, the second connecting portion, 231, the second plate, 300, the first connecting piece, 310, the first A card slot, 320, a second card tooth, 400, a second connector, 410, a first card tooth, 411, a tooth surface, 412, a back side, 420, a second card slot, 500, and a guide block.

Detailed ways

In order to facilitate the understanding of the present invention, the present invention will be more fully described below with reference to the relevant drawings. The preferred embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or a central element may also be present. When an element is considered to be "connected" to another element, it can be directly connected to the other element or an intermediate element may be present at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only, and are not meant to be the only embodiments.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of the present invention. The terminology used in the specification of the present invention herein is only for the purpose of describing specific embodiments, and is not intended to limit the present invention. The term "and/or" as used herein includes any and all combinations of one or more related listed items.

The "first" and "second" in the present invention do not represent a specific number and order, but are merely used to distinguish names.

In this specific embodiment, the square height adjustable fusion cage is mainly placed between the two vertebral bodies of the spine for support. But the square height adjustable fusion device can also be used in other scenes.

As shown in Figures 1 to 4, an embodiment discloses a square height adjustable fusion cage, including a main body, the main body includes at least two base members 100 arranged at intervals, and between two adjacent base members 100 Structural member 200. Both ends of the structural member 200 are respectively connected to two adjacent base members 100, and the two adjacent base members 100 are provided with connecting members. The main body has a state of squeezing deformation, and in the state of squeezing deformation , The distance between two adjacent base members 100 is reduced, the structural member 200 protrudes outward to form a supporting surface 201, and the connecting members on the two adjacent base members 100 are connected.

In the above-mentioned square height adjustable fusion cage, when the main body is in the state of being squeezed and deformed, the distance between two adjacent base members 100 is reduced, and the structural member 200 is squeezed, causing the structural member 200 to bulge outwards, At this time, the connecting pieces on the two adjacent base members 100 are connected, so that the distance between the two adjacent base members 100 is fixed, so that the outwardly protruding part of the structural member 200 maintains a certain height At this time, the outwardly convex portion of the structural member 200 is not easily deformed, and the supporting effect on the vertebral body is relatively stable.

Optionally, the main body also has an undeformed state. In the undeformed state, the connecting members on two adjacent base members 100 are arranged at intervals. Only when the main body enters the state of squeezing deformation, the distance between the connecting pieces on the two adjacent base members 100 becomes smaller until they are connected to each other, and the distance between the two adjacent base members 100 is fixed to ensure the alignment of the vertebra. The supporting effect of the body.

In one of the embodiments, the connecting members on two adjacent base members 100 are respectively the first connecting member 300 and the second connecting member 400, and the first connecting member 300 is sequentially provided with at least two connecting members along the arrangement direction of the base member 100. There are two first adjusting parts, and the second connecting member 400 is provided with a second adjusting part that is engaged with the first adjusting part. The closer the two adjacent base members 100 are, the higher the protrusion height of the structural member 200 is. Since the first connecting member 300 is provided with at least two first adjusting parts in sequence along the arrangement direction of the base member 100, it can be adjusted according to actual conditions. In this case, the second adjusting part is clamped with different first adjusting parts, so that two adjacent base members 100 are kept at a certain distance, and the height of the protrusion of the structural member 200 is further limited. Therefore, the above-mentioned square height-adjustable fusion cage, compared to the traditional operation where multiple square height-adjustable fusion cages with different heights are used for testing, the height of the protrusion of the structural member 200 can be adjusted according to the actual situation, and the operation is convenient. The time for replacement and reinstallation is reduced, thereby reducing operation time and cost.

In addition, after the adjustment of the square height adjustable cage is completed, the protruding part of the structural member 200 is subjected to the pressure of the vertebral body, which may cause the two ends of the structural member 200 to propagate the base member 100 and reduce the height of the protrusion of the structural member 200. However, since the first adjusting part is clamped with the second adjusting part, the distance between two adjacent base members 100 can be prevented from increasing, so that the structural member 200 can be ensured to maintain the convex state, and the supporting effect of the vertebral body can be achieved.

Optionally, the structural member 200 can be made of SUS304, PEEK, titanium alloy, or trabecular bone metal that meets the standards of implanted medical devices, and the surface treatment method can be polishing, sanding, plasma spraying, spraying nano-coating, and the like.

Optionally, both sides of the structural member 200 are provided with the above-mentioned first adjusting member and the second adjusting member. At this time, when being squeezed by the vertebral body, the force on both sides of the structural member 200 is even, which can support the vertebral body more stably.

In other embodiments, the connecting member may also be a magnet. At this time, the connecting members on the two adjacent base members 100 can be attracted to each other, and the distance between the two adjacent base members 100 is kept stable by the magnetic force.

In other embodiments, the connecting member may also be a hook. At this time, the connecting pieces on the two adjacent base members 100 can be hooked to each other to prevent the distance between the two base members 100 from becoming larger, and to prevent the protruding part of the structural member 200 from deforming under the compression of the vertebral body. This provides a stable support for the vertebral body.

In one of the embodiments, as shown in FIGS. 1 and 5, the first adjusting portion is a first slot 310 provided on the first connecting member 300, and the second adjusting portion is a first slot 310 matching the first slot 310. One card tooth 410. The first locking teeth 410 are locked into the first locking slot 310 to achieve a locking fit, and the first locking teeth 410 can be inserted into different locking slots to adjust the distance between two adjacent base members 100, and then adjust the support. The height of section 220.

Specifically, in the direction in which the support portion 220 protrudes, the first connecting member 300 and the second connecting member 400 are staggered, and the first connecting member 300 is provided with the above-mentioned first slot 310 on the side close to the second connecting member 400, The side surface of the second connecting member 400 close to the first connecting member 300 is provided with the above-mentioned first locking teeth 410. At this time, the clamping of the first connecting member 300 and the second connecting member 400 will not affect the operation of other parts.

In other embodiments, the first adjusting portion may also be an opening on the first connecting member 300, and the second adjusting portion may be a clamping post provided on the second connecting member 400 that matches the above-mentioned opening. At this time, after the height adjustment of the support portion 220 is completed, only the clamping column needs to be inserted into the corresponding opening to realize the support of the support portion 220 to the vertebral body.

In one of the embodiments, as shown in FIGS. 1 and 5, the first connecting member 300 is provided with a plurality of second clamping teeth 320, and a first clamping slot 310 is formed between two adjacent second clamping teeth 320 The number of the first clamping teeth 410 is at least two, and a second clamping slot 420 matching the second clamping teeth 320 is formed between two adjacent first clamping teeth 410. At this time, the first clamping tooth 410 and the second clamping tooth 320 are clamped to each other, the clamping effect is more stable, and the effect of limiting the distance between two adjacent base members 100 is better. At the same time, because the two adjacent A second clamping slot 420 is formed between the first clamping teeth 410, and a first clamping slot 310 is formed between two adjacent second clamping teeth 320, so that the adjustment interval of the distance between two adjacent base members 100 is smaller , The height of the support part 220 can be adjusted more accurately, the contact between the support part 220 and the vertebral body is closer, and the support effect is better.

In one of the embodiments, as shown in FIG. 5, the first locking tooth 410 includes a tooth surface 411 and a back surface 412. The tooth surface 411 is provided on the side of the back surface 412 close to the first connecting member 300, and the tooth surface 411 faces away from the first connecting member 300. The direction of the connecting member 300 is inclined, and the back surface 412 is arranged perpendicular to the horizontal plane. In the above structure, since the first locking tooth 410 matches the first locking groove 310, the groove wall corresponding to the back surface 412 on the first locking groove 310 is also arranged perpendicular to the horizontal plane. When the supporting portion 220 is pressed by the vertebral body, it will As a result, the two adjacent base members 100 tend to be relatively far apart. At this time, since the back surface 412 is arranged perpendicular to the horizontal plane, the back surface 412 will be against the groove wall of the first clamping groove 310, and the first clamping tooth 410 will not slip out. The first card slot 310 ensures the stability of the card connection between the first adjusting member and the second certificate.

In one of the embodiments, as shown in FIGS. 1 and 2, the supporting surface 201 has a planar structure. When the supporting surface 201 is in contact with the vertebral body, since the supporting surface 201 is a planar structure, it fits more closely with the vertebral body, the supporting surface 201 for the vertebral body has a larger volume, and the support is more stable, and the supporting effect is better.

In one of the embodiments, as shown in FIGS. 1 to 3, the structural member 200 includes a first connecting portion 210, a supporting portion 220, and a second connecting portion 230 that are connected in sequence, and the first connecting portion 210 and the supporting portion 220 are connected The second connecting portion 230 and the supporting portion 220 can be bent at the connecting portion, and the outer side surface of the supporting portion 220 is the supporting surface 201. When the structural member 200 is squeezed, bending occurs between the first connecting portion 210 and the supporting portion 220, and between the second connecting portion 230 and the supporting portion 220, which can prevent the supporting portion 220 from occurring when the structural member 200 is squeezed. In the case of bending, etc., the above arrangement can keep the supporting portion 220 in a plane structure at all times, ensuring a better supporting effect on the vertebral body.

Optionally, in the arrangement direction of the adjusting member, the length of the first connecting portion 210 is equal to the length of the second connecting portion 230. At this time, when the structural member 200 is squeezed, the support portion 220 can contact the vertebral body in a horizontal posture, which increases the contact area between the support surface 201 and the vertebral body, and improves the stability of the support for the vertebral body.

Optionally, the first connecting portion 210 and the second connecting portion 230 are made of the same material. It can ensure that when the structural member 200 is squeezed, the deformation on both sides of the support part 220 is consistent, so that the support part 220 can finally contact the vertebral body in a horizontal posture, increase the contact area between the support part 220 and the vertebral body, and improve the contact with the vertebral body. The supporting effect.

In other embodiments, if according to the specific conditions of the two adjacent vertebral bodies, when the supporting part 220 needs to be in contact with the vertebral bodies in an inclined posture with respect to the horizontal plane, the first connecting part 210 and the second connecting part may also be connected. The length of 230 is set differently.

Optionally, when the number of the adjusting parts 100 is at least three, the two adjacent base members 100 are a group of units, and after the structural members 200 in different groups of units are compressed, the raised support planes 201 thereof Can be parallel to each other or non-parallel to each other. The protruding support surfaces 201 in different groups of units can be adjusted according to actual conditions to improve the support effect.

In one of the embodiments, as shown in FIGS. 1 to 3, the first connecting portion 210 includes two first plate members 211 arranged at intervals, and two ends of the first plate member 211 are connected to the base member 100 and the supporting portion 220 respectively. For connection, the second connecting portion 230 includes two second plates 231 spaced apart, and two ends of the second plate 231 are respectively connected to the base 100 and the supporting portion 220. At this time, the shapes of the first connecting portion 210, the second connecting portion 230 and the supporting portion 220 are different. When the structural member 200 is squeezed, the first connecting portion 210 and the supporting portion 220, and the second connecting portion 230 and the supporting portion 220 have different shapes. The joint is more prone to deformation, ensuring that the supporting portion 220 can protrude outward and the supporting portion 220 is not bent and deformed, thereby ensuring that the supporting portion 220 has a better supporting effect on the vertebral body. At the same time, the weight of the square height-adjustable cage can be reduced, making it more convenient to use.

In another embodiment, as shown in FIG. 6, a first extension portion 221 and a second extension portion 222 are respectively provided on both sides of the support portion 220, and the first extension portion 221 extends between the two first plates 211 And spaced apart from the first plate 211, the second extension 222 extends between the two second plates 231 and is spaced apart from the second plate 231, the first extension 221, the second extension 222 and the support portion 220 flush setting. In the above structure, the first extension portion 221 and the second extension portion 222 enlarge the area of the support portion 220, support the vertebral body more stably, and have a better support effect.

In one of the embodiments, as shown in FIGS. 1 and 2, there are two structural members 200 between two adjacent base members 100, and the two structural members 200 are the first structural member 202 and the second structural member respectively. The first structural member 202 and the second structural member 203 are spaced apart in the vertical direction, and the supporting portion 220 of the first structural member 202 and the supporting portion 220 of the second structural member 203 both protrude in a relatively distant direction. When two adjacent base members 100 are close to each other, the first structural member 202 and the second structural member 203 are both compressed, and the supporting portion 220 of the first structural member 202 and the supporting portion 220 of the second structural member 203 face toward each other. The relatively far away direction is convex, the shape of the square height adjustable fusion cage is larger at this time, the abutment with the two adjacent vertebral bodies is closer, and the supporting effect is better.

Optionally, the connection between the first connecting portion 210 and the supporting portion 220, and the connection between the second connecting portion 230 and the supporting portion 220 are provided with cuts, and the cuts on the first structural member 202 are provided on the first structural member 202. On the side surface close to the second structure component 203, the notch on the second structure component 203 is provided on the side surface of the second structure component 203 close to the first structure component 202. When a cut is provided on one side of the structural member 200, the strengths of the two sides of the structural member 200 are different, so that the structural member 200 is bent in the direction of the side with the cut when the structural member 200 is squeezed, and the first structural member 202 and the second structural member 202 The above arrangement of the cutout on the structural member 203 can ensure that when two adjacent base members 100 are close to each other, the supporting portion 220 of the first structural member 202 and the supporting portion 220 of the second structural member 203 move in a relatively distant direction , In order to achieve the support of the two adjacent vertebral bodies.

In other embodiments, the connection between the first connecting portion 210 and the supporting portion 220 and the connection between the second connecting portion 230 and the supporting portion 220 may also be provided with creases, and the creases are recesses provided on the structural member 200. The structural member 200 can be bent along the crease when being squeezed.

Optionally, as shown in FIGS. 1 and 2, two adjacent base members 100 are a first base member 101 and a second base member 102, respectively, and a side of the first base member 101 close to the second base member 102 is provided There is a first height-limiting part, a second height-limiting part is provided on a side of the second base member 102 close to the first base member 101, and the first height-limiting member and the second height-limiting member are arranged opposite to each other. By arranging the first height limiting part and the second height limiting part, after the first base member 101 and the second base member 102 are close to one end of each other, the first height limiting part and the second height limiting part will abut, resulting in the first If the first base member 101 and the second base member 102 cannot continue to approach, the support portion 220 cannot continue to bulge. Therefore, the above-mentioned structure can limit the displacement of the support portion 220 and prevent the support portion 220 from exerting excessive pressure on the vertebral body.

Optionally, in the direction from the first base member 101 to the second base member 102, the sum of the length of the first height-limiting portion and the length of the second height-limiting portion is greater than or equal to the length of the supporting portion 220. After the structural member 200 is bent, and the bending angle is reduced from 180° to 90°, the distance between the support portion 220 and the base member 100 will gradually increase, the height of the support portion 220 can be controlled, and the bending angle is 90° °, the distance between the support part 220 and the base part 100 is the largest, and as the bending angle continues to decrease from 90°, the distance between the support part 220 and the base part 100 will gradually decrease. If the control is not accurate, the support will be reduced. The supporting force of the part 220 on the vertebral body, so the sum of the length of the first height-limiting part and the length of the second height-limiting part is set to be greater than or equal to the length of the supporting part 220, so that the bending angle of the structural member 200 after bending The range is 90°～180°, which is convenient for controlling the support of the support part 220 to the vertebral body.

Optionally, as shown in FIG. 4, in the undeformed state, the main body has a hollow rectangular parallelepiped structure. When the main body is placed between the two vertebral bodies, the main body can be placed in a relatively stable manner without rotating, ensuring that when the structural member 200 is raised, the supporting surface 201 can better support the vertebral bodies, increasing the The contact area between the vertebral bodies, and the hollow rectangular parallelepiped structure of the main body facilitates the insertion and fixation of the tool, and facilitates the adjustment of the distance between the two base members 100.

Specifically, the supporting surface 201 is a part of the side surface of the main body. At this time, as long as the distance between the two adjacent base members 100 becomes smaller, the supporting surface 201 can protrude to form a support for the vertebral body, and since the square height adjustable fusion cage is a rectangular parallelepiped, the fusion can be adjusted in the square height. When the stent extends between two adjacent vertebral bodies, the square height-adjustable fusion cage will not rotate in the circumferential direction, ensuring that the vertebral bodies can be supported when the supporting surface 201 protrudes.

In other embodiments, in the undeformed state, the main body may also have a cylindrical structure or the like.

In one of the embodiments, as shown in Figures 1 and 7, the above-mentioned square height adjustable cage further includes a guide block 500. The base part 100 is provided with an opening. The guide block 500 slides through the opening and is connected to one of the base parts. 100 connections. At this time, the guide block 500 can be used to sequentially pass through the openings of the different base parts 100. When the square height adjustable cage is squeezed, the guide block 500 has a guiding function, and the base part 100 can move along the length of the guide block 500. The distance between two adjacent base members 100 is reduced. Optionally, one of the base members 100 abuts against the first end of the guide block 500, the second end of the guide block 500 penetrates the opening of the base member 100, and the end surface of the second end of the guide block 500 is provided with a threaded hole, It is used for threaded connection with an adjusting rod to fix the guide block 500. At this time, the base member 100 is pushed to move along the guide block 500 to bring two adjacent base members 100 close, and the structural member 200 is bent and raised.

The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, all possible combinations of the various technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, All should be considered as the scope of this specification.

The above-mentioned embodiments only express several embodiments of the present invention, and the descriptions are relatively specific and detailed, but they should not be understood as limiting the scope of the invention patent. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can be made, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims

A square height adjustable fusion cage, which is characterized in that it comprises a main body, the main body includes at least two base members arranged at intervals, and a structural member is arranged between two adjacent base members. The two ends are respectively connected to two adjacent base members, and the two adjacent base members are provided with connecting members. The main body has a state of squeezing deformation. In the state of squeezing deformation, the corresponding The distance between two adjacent base members is reduced, the structural member protrudes outward to form a supporting surface, and the connecting members on the two adjacent base members are connected.
The square height adjustable fusion cage according to claim 1, wherein the connecting pieces on two adjacent base members are a first connecting piece and a second connecting piece, and the first connecting piece is At least two first adjusting parts are sequentially provided along the arrangement direction of the base part, and the second connecting part is provided with a second adjusting part that is clamped with the first adjusting part.
The square height adjustable cage according to claim 2, wherein the first adjusting portion is a first slot provided on the first connecting member, and the second adjusting portion is connected to the The first tooth that matches the first slot.
The square height adjustable fusion cage according to claim 3, wherein the first connecting member is provided with a plurality of second clamping teeth, and the second clamping teeth are formed between two adjacent second clamping teeth. For the first card slot, the number of the first card teeth is at least two, and a second card slot matching with the second card teeth is formed between two adjacent first card teeth.
The square height adjustable cage according to claim 3, wherein the first latching tooth comprises a tooth surface and a back surface, and the tooth surface is provided on a side of the back surface close to the first connecting member, The tooth surface is arranged obliquely in a direction away from the first connecting member, and the back surface is arranged perpendicular to the horizontal plane.
The square height adjustable cage according to any one of claims 1 to 5, wherein the supporting surface is a plane structure.
The square height adjustable cage according to claim 6, wherein the structural member includes a first connecting portion, a supporting portion, and a second connecting portion that are connected in sequence, the first connecting portion and the supporting portion The connection part of the support part can be bent, the connection part of the second connection part and the support part can be bent, and the outer side surface of the support part is the support surface.
The square height adjustable fusion cage according to claim 7, wherein the first connecting portion includes two first plate members arranged at intervals, and two ends of the first plate member are connected to the base member respectively. The supporting part is connected, and the second connecting part includes two second plates arranged at intervals, and two ends of the second plate are respectively connected to the base part and the supporting part.
The square height adjustable fusion cage according to claim 7, wherein there are two structural members between two adjacent base members, and the two structural members are respectively the first structural member And a second structural member, the first structural member and the second structural member are spaced apart in the up-down direction, and the supporting portion of the first structural member and the supporting portion of the second structural member are both facing in a relatively distant direction Raised.
The square height adjustable fusion cage according to any one of claims 1-5, further comprising a guide block, the base member is provided with an opening, and the guide block slides through the opening and connects with it. One of the basic parts is connected.