CN112998911A

CN112998911A - Titanium mesh component

Info

Publication number: CN112998911A
Application number: CN202110432184.9A
Authority: CN
Inventors: 王彩梅
Original assignee: Beijing AK Medical Co Ltd
Current assignee: Beijing AK Medical Co Ltd
Priority date: 2021-04-21
Filing date: 2021-04-21
Publication date: 2021-06-22

Abstract

The invention provides a titanium mesh component. The titanium mesh component is used for spinal column reconstruction, and the titanium mesh component comprises: the titanium mesh body is of a cylindrical structure and is provided with a plurality of through holes; the lid, with this body coupling of titanium net, the lid includes first side and second side, and the tip at the titanium net body is established to first side lid, and the second side contacts with the skeleton. By applying the technical scheme of the invention, the problem that the skeleton is easy to collapse when the titanium mesh structure is used as a repairing material in the prior art can be solved.

Description

Titanium mesh component

Technical Field

The invention relates to the technical field of medical instruments, in particular to a titanium mesh component.

Background

The titanium metal alloy material has the advantages of light weight, high strength, excellent biological tissue compatibility, corrosion resistance and the like, the titanium mesh adopted as the repairing material has the advantages of large bone grafting space, random cutting length and the like, the traditional titanium mesh structure is distributed with a plurality of pores, is clinically applied as a conventional repairing structure, is easy to operate, has low price and is easily accepted by people

However, the edge of the titanium mesh structure is sharp, so that an end plate is easily damaged, bones collapse is caused, the end part of the titanium mesh structure cannot effectively support bone, and secondary injury is easily caused to a patient.

Disclosure of Invention

The invention mainly aims to provide a titanium mesh component to solve the problem that a titanium mesh structure serving as a repair material in the prior art is easy to cause bone collapse.

In order to achieve the above object, the present invention provides a titanium mesh assembly for spinal reconstruction, comprising: the titanium mesh body is of a cylindrical structure and is provided with a plurality of through holes; the lid, with this body coupling of titanium net, the lid includes first side and second side, and the tip at the titanium net body is established to first side lid, and the second side contacts with the skeleton.

Further, the cover body includes: the solid part is provided with a mounting groove, and the end part of the titanium mesh body is inserted in the mounting groove; the fusion part is sleeved on the periphery of the solid part and is contacted with the skeleton; wherein the fused part has a porous structure.

Furthermore, the solid part is provided with a connecting hole, the titanium mesh assembly further comprises a locking piece, and the locking piece penetrates through the connecting hole and one of the through holes to connect the solid part and the titanium mesh body.

Further, the solid portion includes: a base plate; the bulge is arranged on the bottom plate; the circumference lateral wall sets up in protruding, and the circumference lateral wall encloses to be established in bellied periphery, forms the mounting groove between circumference lateral wall and the arch.

Furthermore, the connecting holes are formed in the circumferential side wall, the connecting holes are multiple, the connecting holes are arranged in the circumferential direction of the circumferential side wall at intervals, and the centers of at least two connecting holes are different in height from the bottom plate.

Further, the lid still includes the bone grafting hole, and the bone grafting hole runs through solid portion and fuses the portion and communicates with the well logical cavity of titanium net body.

Furthermore, one end of the fusion part, which is far away from the solid part, is an outward convex curved surface.

Furthermore, the through holes are arranged at intervals in the axial direction and/or the circumferential direction of the titanium mesh body, and the plurality of through holes are spirally arranged on the titanium mesh body.

Further, the fusion part comprises an annular structure, the bottom plate is located on the inner side of the annular structure, and the height of the annular structure is larger than or equal to that of the bottom plate.

Furthermore, the number of the cover bodies is two, and the two cover bodies are arranged at two ends of the titanium mesh body in a covering mode.

By applying the technical scheme of the invention, the cover body is arranged, so that the end part of the titanium mesh body can be protected, the situation that the skeleton is collapsed or cannot be supported on the skeleton due to the sharp end part of the titanium mesh body is effectively prevented, the problem that the skeleton is collapsed after the operation of a user is further ensured, and the secondary injury to the user is avoided.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 shows a schematic structural view of an embodiment of a titanium mesh assembly according to the present invention;

FIG. 2 shows a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 shows a schematic structural view of the cover of FIG. 1;

FIG. 4 shows a cross-sectional view taken along line B-B of FIG. 3; and

fig. 5 shows a cross-sectional view along C-C of fig. 1.

Wherein the figures include the following reference numerals:

10. a titanium mesh body; 11. a through hole; 20. a cover body; 21. a solid portion; 211. mounting grooves; 212. connecting holes; 213. a base plate; 214. a protrusion; 215. a circumferential sidewall; 22. a fusion section; 221. an annular structure; 23. bone grafting holes; 30. and a locking member.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

As shown in fig. 1 and 2, the present embodiment provides a titanium mesh assembly for spinal reconstruction, which includes a titanium mesh body 10 and a cover body 20. The titanium mesh body 10 is of a cylindrical structure, and a plurality of through holes 11 are formed in the titanium mesh body 10; the cover body 20 is connected with the titanium mesh body 10, the cover body 20 comprises a first side and a second side, the first side covers the end part of the titanium mesh body 10, and the second end is in contact with the skeleton.

In this embodiment, owing to set up lid 20 to can protect the tip of titanium net body 10, effectively prevent to lead to the condition that the skeleton sinks or can't support on the skeleton because of the tip of titanium net body 10 is sharp, and then guarantee that the user can not produce the problem that the skeleton sinks at the postoperative, avoid the secondary injury to the user.

Specifically, the use of titanium mesh components includes two cases:

the other is a new surgical patient, when the spine is reconstructed, the two ends of the titanium net body 10 are covered by the cover bodies 20 when the titanium net body 10 is additionally arranged on the spine, so that the cover bodies 20 at the two ends are in contact with surrounding bones, bone fusion is realized in the later bone growth process, and the situation that the bone injury is caused to collapse due to the fact that the titanium net body 10 with sharp edges is directly in contact with the bones is avoided.

The other type is that when the patient implants the titanium mesh body and uses the condition that the skeleton collapses for a period of time, can directly install lid 20 additional at the tip of former titanium mesh body 10, contact lid 20 and adjacent skeleton this moment again, realize the bone fusion at later stage skeleton growth in-process, can greatly reduced like this because of demolising the injury that the reconstruction led to the fact the patient under the skeleton condition of collapsing, still can keep the inside good sclerotin of filling of titanium mesh body in earlier stage, reduced the operation degree of difficulty, improved the success rate of operation, reduced the operation expense.

Simultaneously, titanium net body 10 in this embodiment is made through titanium alloy pipe laser engraving hole, the wall thickness of titanium net body 10 is between 1mm to 2mm, hollow cavity has formed the bone grafting space, it is big to have kept the bone grafting space among the prior art, can tailor the advantage of length wantonly, after the inside bone grafting of titanium net body 10, can be connected with the outside sclerotin of titanium net body 10 through a plurality of through-holes 11 on the titanium net body 10, it is fixed to realize the osseous, be convenient for clinical use, easy to operate, the price is low, patient's acceptance is high.

As shown in fig. 3 and 4, in the present embodiment, the lid body 20 includes a solid portion 21 and a fused portion 22. The solid part 21 is provided with an installation groove 211, and the end part of the titanium mesh body 10 is inserted in the installation groove 211; the fusion part 22 is sleeved on the periphery of the solid part 21, and the fusion part 22 is contacted with the skeleton; the fused portion 22 has a porous structure.

Specifically, since the fusion part 22 is sleeved on the periphery of the solid part 21, after the cover body 20 is covered on the titanium mesh body 10, the external fusion part 22 is in contact with surrounding bones, and since the fusion part 22 is of a porous structure, the bones are conveniently combined with the fusion part 22 in the growth process, so that the bone fusion speed after operation is increased.

Further, because lid 20 still includes entity portion 21, the density of entity portion 21 is greater than the density that fuses portion 22, thereby when titanium net body 10 is connected with entity portion 21, the grafting requirement of titanium net body 10 can be satisfied to entity portion 21's structural strength, can not be in with titanium net subassembly implantation internal back, because the sharp condition that causes penetrating entity portion 21 of tip of titanium net body 10, the security of titanium net subassembly in the human internal use has been guaranteed, avoided leading to the skeleton to collapse and cause the secondary damage to the patient because of the structural strength of titanium net subassembly itself is not enough.

Preferably, the solid portion 21 and the fusion portion 22 in the present embodiment are integrally molded by means of 3D printing.

As shown in fig. 4 and 5, in the present embodiment, the solid portion 21 is provided with the connecting hole 212, and the titanium mesh assembly further includes the locker 30, and the locker 30 passes through the connecting hole 212 and one of the through holes 11 to connect the solid portion 21 and the titanium mesh body 10.

The arrangement facilitates the connection between the cover body 20 and the titanium mesh body 10, and ensures that the titanium mesh body 10 and the cover body 20 are not separated to cause the failure of spinal column reconstruction after the titanium mesh component is implanted into a human body. Meanwhile, since the connection holes 212 are formed in the solid portion 21, the strength of the installation positions of the connection holes 212 is ensured to be high, and the structural strength of the connection portions of the locking member 30 can meet the requirements after the locking of the connection holes 212 and the through holes 11.

Further, the coupling holes 212 are screw holes, and the locker 30 is a screw passing through the coupling holes 212 and the through-hole 11 and threadedly coupled with the coupling holes 212.

As shown in fig. 3 and 4, in the present embodiment, the solid portion 21 includes a bottom plate 213, a projection 214, and a circumferential side wall 215. Wherein the protrusion 214 is disposed on the bottom plate 213; a circumferential side wall 215 is provided on the protrusion 214, the circumferential side wall 215 surrounds the outer circumference of the protrusion 214, and a mounting groove 211 is formed between the circumferential side wall 215 and the protrusion 214.

Specifically, the protrusion 214 is a cylindrical structure provided on the bottom plate 213, the circumferential side wall 215 surrounds the outer circumference of the protrusion 214, a space is provided between the circumferential side wall 215 and the protrusion 214, and the titanium mesh body 10 is inserted into the space. The arrangement effectively limits the installation position of the titanium mesh body 10, and prevents the titanium mesh body 10 from being dislocated relative to the cover body 20 in the use process.

As shown in fig. 3 and 4, in the present embodiment, the connection holes 212 are provided on the circumferential side wall 215, the connection holes 212 are plural, the plurality of connection holes 212 are provided at intervals in the circumferential direction of the circumferential side wall 215, and the centers of at least two connection holes 212 are different in height from the bottom plate 213.

In this embodiment, the heights of the plurality of connection holes 212 are different, so that when the cutting length of the titanium mesh body 10 is different, one of the plurality of connection holes 212 with a proper height can be selected to be correspondingly connected with the through hole 11, so that the titanium mesh assembly with the additional cover body 20 can still meet the requirements of vertebral bodies with different heights, and has a function of adjusting the height of the vertebral body.

As shown in fig. 3 and 4, in the present embodiment, the cover body 20 further includes a bone grafting hole 23, and the bone grafting hole 23 penetrates the solid portion 21 and the fusion portion 22 and communicates with the hollow cavity of the titanium mesh body 10.

Due to the arrangement of the bone grafting holes 23, the titanium mesh can be communicated with the middle cavity of the titanium mesh body 10, and when the titanium mesh is implanted into a human body, the function of integrating the internal bone and the external bone is exerted, so that the bone fusion is convenient to realize.

Preferably, the end of the fusion part 22 away from the solid part 21 is a convex curved surface.

Specifically, the end of the fusion part 22 away from the solid part 21 is an outward convex curved surface, and the curved surface has various bending angles, so that the combination requirements of bones with different angles can be met when the fusion part is in contact with the bones, and the applicability of the cover body 20 is improved.

Further, before the cover body 20 is locked with the titanium mesh body 10, the cover body 20 is rotatably arranged relative to the titanium mesh body 10, and during the operation, the stable positioning position of the cover body 20 and the surrounding skeleton can be selected by rotating the cover body 20, so that the flexibility and the stability of installation are improved.

As shown in fig. 1 and 2, in the present embodiment, the through holes 11 are provided at intervals in the axial direction and the circumferential direction of the titanium mesh body 10, and a plurality of the through holes 11 are arranged in a spiral shape on the titanium mesh body 10.

Specifically, the plurality of through holes 11 in this embodiment are arranged in a single spiral or double spiral shape on the titanium mesh body 10, and the spiral structure may be left-handed or right-handed, and specifically the arrangement mode may be determined according to the injured position of the patient and the bone hyperplasia capability.

The arrangement mode fully considers the proliferation of bones and the growth condition of muscle fibers, and is favorable for promoting bone fusion.

As shown in fig. 4, in the present embodiment, the fusion part 22 includes a ring structure 221, the bottom plate 213 is located inside the ring structure 221, and the height of the ring structure 221 is equal to or greater than the height of the bottom plate 213.

With the above arrangement, the bottom plate 213 is covered in the annular structure 221, so that only the fusion part 22 contacts with the bone when the cover 20 contacts with the bone, the contact area between the fusion part 22 and the bone is increased, and the bone fusion speed is increased.

Preferably, the height of the ring structure 221 in this embodiment is the same as the height of the bottom plate 213.

Further, two covers 20 are provided, and the two covers 20 are provided at both ends of the titanium mesh body 10.

Specifically, the two covers 20 of the present embodiment are an upper cover and a lower cover, respectively, and the difference between the upper cover and the lower cover is:

the curvature of the convex curved surface of the upper cover body is greater than that of the convex curved surface of the lower cover body because: go up the lid and the cooperation of the lower end plate contact of centrum, the lower lid cooperates with the last end plate contact of centrum, because the lower end plate radian of human centrum is big, the last end plate radian is little, and above-mentioned setting makes and goes up the lid and the laminating degree height behind the end plate contact down, and the laminating degree of lower lid and last end plate contact back is high to make lid 20 laminate with the sclerotin more easily, and then performance bone integration's ability. The other structures of the upper cover body and the lower cover body are the same.

When a patient is implanted with the titanium mesh body and used for a period of time to cause the condition of bone collapse, the titanium mesh body can be installed according to the condition of bone collapse, if the condition of collapse occurs at only one end, the cover body 20 can be installed at the collapsed end, and the other end is kept in the previous uncovered state.

The technical scheme of this application combines together traditional titanium net and the lid of new design, and the lid adopts 3D to form the structure that has entity portion and fuse the portion, combines the respective advantage of traditional titanium net and lid, makes the titanium net subassembly have new characteristics.

Particularly, in the case of bone collapse after the titanium mesh is implanted, the bone filling inside the original titanium mesh is intact, so that the original titanium mesh is not willing to be discarded, the original titanium mesh can be directly repaired at the moment, and the original titanium mesh can be fixed again by covering the original titanium mesh, so that the operation difficulty can be reduced, the operation cost of a patient can be reduced, and the operation success rate can be improved.

The technical scheme of the application is realized through the following modes:

the titanium mesh body has the advantages of large bone grafting space and random cutting length, is clinically used routinely, is easy to operate, has low price and is easy to accept by patients;

the titanium mesh body is made by laser engraving holes on a titanium alloy tube, can be cut into different lengths at will, and is hollow inside so as to facilitate bone grafting in an operation;

the cover body is made of a titanium alloy material through 3D printing and comprises a solid part and a fusion part with a porous structure, wherein the center of the cover body is provided with a bone grafting hole which can be communicated with a hollow cavity of the titanium mesh body to realize the integration of internal and external bones;

before the cover body and the titanium mesh body are locked through the locking piece, the cover body can rotate 360 degrees relative to the titanium mesh body, so that the cover body can be conveniently contacted with surrounding bones in an operation to realize positioning;

the end face of the loose part of the cover body is a curved surface structure with various angles, and the end face can be individually designed through 3D reconstruction and the like so as to meet the requirements of contact positioning with different bones;

the cover body and the titanium mesh body are locked and fixed through a locking screw;

connecting holes with different heights are formed in the solid part of the cover body, the connecting holes are threaded holes, and the overall height of the vertebral body can be adjusted through the matching of the connecting holes and the through holes, so that the titanium mesh component has the capability of adjusting the vertebral body;

the solid part of the cover body is provided with a mounting groove, so that the titanium mesh body can be embedded, and the function of preventing the titanium mesh body from toppling or misplacing is achieved.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:

owing to set up the lid to can protect the tip of titanium net body, effectively prevent to lead to the skeleton to sink or the unable condition that supports on the skeleton because of the tip of titanium net body is sharp, and then guaranteed that the user can not produce the problem that the skeleton sinks at the postoperative, avoid the secondary injury to the user.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A titanium mesh component for spinal reconstruction, the titanium mesh component comprising:

the titanium mesh body (10) is of a cylindrical structure, and a plurality of through holes (11) are formed in the titanium mesh body (10);

the titanium mesh body (10) is connected with the cover body (20), the cover body (20) comprises a first side and a second side, the first side covers the end portion of the titanium mesh body (10), and the second side is in contact with a skeleton.

2. The titanium mesh assembly of claim 1, wherein said cap (20) comprises:

the titanium mesh comprises a solid part (21), wherein an installation groove (211) is formed in the solid part (21), and the end part of the titanium mesh body (10) is inserted into the installation groove (211);

a fusion part (22) which is sleeved on the periphery of the solid part (21), wherein the fusion part (22) is contacted with the skeleton;

wherein the fused portion (22) has a porous structure.

3. The titanium mesh assembly of claim 2, wherein said solid portion (21) is provided with a connecting hole (212), said titanium mesh assembly further comprising a locking member (30), said locking member (30) passing through said connecting hole (212) and one of said through holes (11) to connect said solid portion (21) and said titanium mesh body (10).

4. The titanium mesh assembly of claim 3, wherein said solid portion (21) comprises:

a base plate (213);

a protrusion (214) provided on the bottom plate (213);

and the circumferential side wall (215) is arranged on the protrusion (214), the circumferential side wall (215) is arranged around the periphery of the protrusion (214), and the mounting groove (211) is formed between the circumferential side wall (215) and the protrusion (214).

5. The titanium mesh assembly of claim 4, wherein said connection holes (212) are provided on said circumferential side wall (215), said connection holes (212) are plural, a plurality of said connection holes (212) are provided at intervals in the circumferential direction of said circumferential side wall (215), and the height of the center of at least two of said connection holes (212) from said bottom plate (213) is different.

6. The titanium mesh assembly according to claim 2, wherein said cap (20) further comprises a bone grafting hole (23), said bone grafting hole (23) extending through said solid portion (21) and said fusion portion (22) and communicating with a through-lumen of said titanium mesh body (10).

7. The titanium mesh component of claim 2, wherein an end of said fused portion (22) distal to said solid portion (21) is convexly curved.

8. The titanium mesh assembly according to claim 1, wherein said through holes (11) are arranged at intervals in the axial direction and/or in the circumferential direction of said titanium mesh body (10), and a plurality of said through holes (11) are arranged in a spiral shape on said titanium mesh body (10).

9. The titanium mesh assembly of claim 4, wherein said fusion portion (22) comprises a ring structure (221), said base plate (213) being located inside said ring structure (221), the height of said ring structure (221) being equal to or greater than the height of said base plate (213).

10. The titanium mesh assembly of claim 1, wherein said cover body (20) is two, and two of said cover bodies (20) are provided at both ends of said titanium mesh body (10).